| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
ANALYSIS OF TECHNICAL CRITERIA
FOR THE
BELAHOURO GOLD MINE PROJECT
BURKINA FASO
FOR
GOLDBELT RESOURCES LIMITED
Prepared By
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BS EN ISO 9001:2000
FS80050
PROJECT NUMBER: 0207
2ND DECEMBER 2005
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | |
TABLE OF CONTENTS |
| | | |
1 | EXECUTIVE SUMMARY | 18 |
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| 1.1 | Property Description | 18 |
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| 1.2 | Exploration and Property History | 18 |
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| | 1.2.1 Location and Access | 19 |
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| 1.3 | Geology and Mineralization | 20 |
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| 1.4 | Metallurgical Testing | 22 |
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| | 1.4.1 Metallurgical Test Work for Belahouro - CIL Process | 22 |
| | 1.4.2 Metallurgical Test Work for Belahouro Project - Heap Leach | 24 |
| | | |
| 1.5 | Mineral Resources | 25 |
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| | 1.5.1 Pit Optimisation & Sensitivity | 26 |
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| 1.6 | Mining Operations | 27 |
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| 1.7 | Mineral Processing Plant | 28 |
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| 1.8 | Mine Overhead | 28 |
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| 1.9 | Manpower | 28 |
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| 1.10 | Environmental Considerations | 28 |
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| | 1.10.1 Water Supply | 29 |
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| 1.11 | Capital and Operating Cost Estimates | 29 |
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| 1.12 | Markets and Contracts | 29 |
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| 1.13 | Conclusions and Recommendations | 29 |
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2 | INTRODUCTION AND TERMS OF REFERENCE | 32 |
| | |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | |
| 2.1 | Principal Sources of Information | 32 |
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3 | DISCLAIMER | 33 |
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4 | PROPERTY DESCRIPTION AND LOCATION | 34 |
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| 4.1 | Background Information on Burkina Faso | 34 |
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| 4.2 | Project Location | 35 |
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| 4.3 | Land Area | 35 |
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| 4.4 | Mining Claim Description | 36 |
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| 4.5 | Agreements and Encumbrances | 37 |
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| 4.6 | Environmental Liabilities | 37 |
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| 4.7 | Permits | 37 |
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5 | ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY | 38 |
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| 5.1 | Property Access and Freight Routing | 38 |
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| 5.2 | Physiography and Climate | 38 |
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| 5.3 | Geology | 39 |
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| | 5.3.1 Regional Geology | 39 |
| | 5.3.2 Local Geology | 39 |
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| 5.4 | Hydrology and Hydrogeology | 40 |
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| 5.5 | Seismicity | 40 |
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| 5.6 | Local Resources and Infrastructure | 41 |
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6 | HISTORY OF PREVIOUS WORK RESULTS | 42 |
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| 6.1 | Owners | 42 |
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| 6.2 | Exploration History | 42 |
| | | |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | |
| 6.3 | Historic Mineral Resource Estimates | 44 |
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| 6.4 | Historic Production | 46 |
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7 | GEOLOGICAL SETTING | 47 |
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| 7.1 | Regional Geology | 47 |
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| 7.2 | Project Geology | 48 |
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8 | DEPOSIT TYPES | 50 |
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9 | MINERALIZATION | 51 |
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10 | EXPLORATION | 52 |
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11 | DRILLING | 54 |
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| 11.1 | Reverse Circulation Drilling | 54 |
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| 11.2 | Diamond Core Drilling | 54 |
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| 11.3 | Drilling Quality | 55 |
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12 | SAMPLING METHODS AND APPROACH | 56 |
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| 12.1 | RC Sampling and Logging | 56 |
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| 12.2 | Diamond Core Sampling and Logging | 56 |
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| 12.3 | Sample Recovery | 57 |
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| 12.4 | Sample Quality | 57 |
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13 | SAMPLE PREPARATION, ANALYSIS AND SECURITY | 58 |
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| 13.1 | Sample Security | 58 |
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| 13.2 | Analytical Laboratories | 58 |
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| 13.3 | Sample Preparation and Analysis Methods | 59 |
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| | 13.3.1 Intertek Testing Service (ITS) | 59 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | 13.3.2 | Transworld - Tarkwa | 59 |
| | 13.3.3 | SGS Tarkwa | 60 |
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| 13.4 | Adequacy of Procedures | 60 |
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14 | DATA VERIFICATION | 61 |
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| 14.1 | Quality Control Procedures | 61 |
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| | 14.1.1 | Intertek Testing Services (ITS) | 61 |
| | 14.1.2 | Transworld (Tarkwa) and SGS (Tarkwa) | 61 |
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| 14.2 | Quality Control Analysis | 62 |
| | | | |
| | 14.2.1 | Pre BHP | 63 |
| | 14.2.2 | Resolute/BHP-Resolute (ITS) | 63 |
| | 14.2.3 | Goldbelt (Transworld - Tarkwa) | 64 |
| | 14.2.4 | Goldbelt (SGS - Tarkwa) | 65 |
| | 14.2.5 | Analytical Data Quality Summary | 67 |
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| 14.3 | Bulk Density Determinations | 67 |
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| 14.4 | Survey Control | 68 |
| | | | |
| | 14.4.1 | Topography | 68 |
| | 14.4.2 | Collar Surveys | 68 |
| | 14.4.3 | Down-hole Surveys | 68 |
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| 14.5 | Data Quality Summary | 69 |
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| 14.6 | Source Data | 70 |
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| 14.7 | Drillhole Database | 70 |
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15 | ADJACENT PROPERTIES | 73 |
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16 | MINERAL PROCESSING AND METALLURGICAL TESTING | 74 |
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17 | MINERAL RESOURCE AND MINERAL RESERVE ESTIMATES | 76 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| 17.1 | Introduction | 76 |
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| 17.2 | Database | 76 |
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| 17.3 | Geological Modelling and Mineralized Zone Interpretation | 76 |
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| 17.4 | Statistical Analysis | 77 |
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| 17.5 | Variography | 80 |
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| 17.6 | Block Model Development | 82 |
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| 17.7 | Grade Estimation | 82 |
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| 17.8 | Resource Classification | 85 |
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| 17.9 | Resource Statement | 86 |
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18 | MINING OPERATIONS | 88 |
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| 18.1 | Mining Methods | 88 |
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| 18.2 | Open Pit Optimization and Parameters | 88 |
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| | 18.2.1 Whittle Pit Optimization Model Construction | 88 |
| | 18.2.2 Dilution and Mining Recovery Factors | 89 |
| | 18.2.3 Whittle Four-X Input Parameters | 89 |
| | 18.2.4 Commodity Price | 90 |
| | 18.2.5 Mining Costs | 90 |
| | 18.2.6 Pit Optimization for CIL and Heap Leach | 92 |
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| 18.3 | Pit Optimization | 94 |
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| | 18.3.1 Pit Optimization Setup | 94 |
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| 18.4 | Pit Optimization Results | 96 |
| | | |
| | 18.4.1 Scenarios | 96 |
| | 18.4.2 HL Only | 98 |
| | 18.4.3 CIL plus HL Combined Scenario | 101 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| 18.5 | Whittle Four-X Sensitivity Analysis | 102 |
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| 18.6 | Mine Production Schedule | 107 |
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| | 18.6.1 | Scheduling Results | 107 |
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| 18.7 | Mine Design and Equipment | 108 |
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| 18.8 | Mining Operation Facilities | 109 |
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| 18.9 | Mine Capital Expenditures | 109 |
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| 18.10 | Mine Manpower | 110 |
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| 18.11 | Mine Operating Costs | 110 |
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19 | METALLURGICAL PROCESSING PLANT | 111 |
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| 19.1 | 19.1 Metallurgical Test Work Results | 111 |
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| | 19.1.1 | Results from A7029 | 114 |
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| 19.2 | Ore Characterization | 114 |
| | | | |
| 19.3 | Plant Flowsheets | 114 |
| | | | |
| | 19.3.1 | ROM Tip (CIL) | 115 |
| | 19.3.2 | Milling (CIL) | 116 |
| | 19.3.3 | Carbon in Leach (CIL) | 117 |
| | 19.3.4 | Elution / Acid Wash Pressure "Zadra" System (2.5 tonne batch, CIL & Heap Leach) | 119 |
| | 19.3.5 | Carbon Regeneration Area (CIL & Heap Leach) | 120 |
| | 19.3.6 | Electrowinning and Smelting (CIL & Heap Leach) | 120 |
| | 19.3.7 | Reagents and Consumables ( CIL) | 121 |
| | 19.3.8 | ROM Tip, Crushing and Agglomeration (Heap Leach) | 122 |
| | 19.3.9 | Conveying and Stacking (Heap Leach) | 123 |
| | 19.3.10 | Leach Pads | 123 |
| | 19.3.11 | Stacking Pattern | 124 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | 19.3.12 | Heap Drainage Reticulation | 124 |
| | 19.3.13 | Solution Corridor layout | 125 |
| | 19.3.14 | Process Pond Layout | 125 |
| | 19.3.15 | Solution Application System | 126 |
| | 19.3.16 | Carbon Columns (Heap Leach) | 127 |
| | | | |
| 19.4 | Tailings Impoundment (CIL) | 127 |
| | | | |
| | 19.4.1 | Introduction | 127 |
| | 19.4.2 | Dry Tailings System (CIL) | 128 |
| | 19.4.3 | Tailings Dam (Thickened Tailings) | 128 |
| | 19.4.4 | Recommendations | 131 |
| | | | |
| 19.5 | Processing Water Supply | 131 |
| | | | |
| | 19.5.1 | Sona Barrage | 131 |
| | 19.5.2 | Bouro Barrage | 132 |
| | 19.5.3 | Mormossal Barrage | 132 |
| | 19.5.4 | Groundwater Aquifer | 133 |
| | 19.5.5 | Recommendations | 133 |
| | | | |
| 19.6 | Processing Plant Support Facilities | 133 |
| | | | |
| | 19.6.1 | Security Control Room | 133 |
| | 19.6.2 | Change House | 134 |
| | 19.6.3 | Plant Workshop and Stores | 134 |
| | 19.6.4 | Laboratory | 134 |
| | | | |
| 19.7 | Gold Recovery | 134 |
| | | | |
| 19.8 | Capital Costs | 135 |
| | | | |
| 19.9 | Plant Personnel | 143 |
| | | | |
| | 19.9.1 | Manpower &Training | 143 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | 19.9.2 | Health & Safety | 144 |
| | 19.9.3 | Plant Manpower Levels | 144 |
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| 19.10 | Operating Costs | 147 |
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20 | MINE INFRASTRUCTURE | 148 |
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| 20.1 | Property Access | 148 |
| | | | |
| 20.2 | Primary Routes | 148 |
| | | | |
| | 20.2.1 | Option A1 - Ouagadougou to Djibo, via Ouahigouya | 148 |
| | 20.2.2 | Option A2 - Ouagadougou to Djibo, via Kongoussi | 149 |
| | | | |
| 20.3 | Secondary Routes | 149 |
| | | | |
| | 20.3.1 | Option B1 - Djibo to Inata, via Bouro Village | 149 |
| | 20.3.2 | Option B2 - Djibo to Inata, via Belehede | 150 |
| | 20.3.3 | Option B3 - Djibo to Inata, via central route | 151 |
| | 20.3.4 | Discussion & Recommendations | 152 |
| | | | |
| 20.4 | Camp Accommodation and Facilities | 153 |
| | | | |
| | 20.4.1 | Kitchen and Catering Facilities | 154 |
| | 20.4.2 | Recreational Facilities | 154 |
| | 20.4.3 | Laundry | 154 |
| | 20.4.4 | Septic Tank and Sewage System | 154 |
| | | | |
| 20.5 | Mine Support Facilities | 155 |
| | | | |
| | 20.5.1 | Administration Building | 155 |
| | 20.5.2 | Workshop and Plant Stores | 155 |
| | 20.5.3 | Fuel and Lubrication storage and distribution | 155 |
| | 20.5.4 | Sewage Disposal | 156 |
| | 20.5.5 | Explosives Magazine Facility | 156 |
| | | | |
| 20.6 | Sanitary Landfill | 157 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| 20.7 | Power & Telecommunications | 157 |
| | | | |
| | 20.7.1 | Power | 157 |
| | 20.7.2 | Communications | 158 |
| | | | |
| 20.8 | Tailings | | 158 |
| | | | |
| | 20.8.1 | Tailings Storage | 158 |
| | | | |
| 20.9 | Water Management | 158 |
| | | | |
| | 20.9.1 | General | 158 |
| | 20.9.2 | Flood Attenuation | 159 |
| | 20.9.3 | Return Water System | 159 |
| | 20.9.4 | Diversion Structures | 159 |
| | 20.9.5 | TMF Preliminary Water Balance | 160 |
| | | | |
| 20.10 | Water Abstraction Options | 163 |
| | | | |
| | 20.10.1 | Groundwater Aquifer | 164 |
| | 20.10.2 | Surface Impoundments | 164 |
| | 20.10.3 | Recommendation | 168 |
| | | | |
| 20.11 | Capital Costs | 168 |
| | | | |
| 20.12 | Operating Costs | 172 |
| | | | |
21 | MANPOWER | 174 |
| | | | |
| 21.1 | General & Administration | 174 |
| | | | |
| 21.2 | Ouagadougou Office | 175 |
| | | | |
| 21.3 | Capital Costs | 175 |
| | | | |
| 21.4 | Operating Costs | 175 |
| | | | |
22 | ENVIRONMENTAL CONSIDERATIONS | 176 |
| | | | |
| 22.1 | Environmental study requirements | 176 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
23 | CONSTRUCTION MANAGEMENT AND SCHEDULE | 178 |
| | | |
| 23.1 | Schedule | 178 |
| | | |
| 23.2 | Capital Costs | 179 |
| | | |
24 | CAPITAL AND OPERATING COST ESTIMATES | 181 |
| | | |
| 24.1 | Capital Costs | 181 |
| | | |
| 24.2 | Operating Costs | 183 |
| | | |
| 24.3 | Sustaining Capital | 185 |
| | | |
25 | MARKETS AND CONTRACTS | 186 |
| | | |
26 | INTERPRETATION AND CONCLUSIONS | 187 |
| | | |
| 26.1 | Exploration and Resource Potential | 187 |
| | | |
| 26.2 | Data Adequacy and Reliability | 187 |
| | | |
27 | RECOMMENDATIONS | 188 |
| | | |
28 | REFERENCES AND SOURCES OF INFORMATION | 189 |
| | | |
29 | SIGNATURE PAGE | 190 |
| | | |
30 | CERTIFICATES | 191 |
| | | |
| 30.1 | GBM - CERTIFICATE OF QUALIFICATION - Michael Short | 191 |
| | | |
| 30.2 | GBM - CERTIFICATE OF QUALIFICATION -Alex Mitchell | 192 |
| | | |
| 30.3 | AMEC - CERTIFICATE OF QUALIFICATION - Ciaran Molloy | 193 |
| | | |
| 30.4 | RSG Global - CERTIFICATE OF QUALIFIED PERSON - Harry Warries | 194 |
| | | |
| 30.5 | SOCREGE - CERTIFICATE OF QUALIFIED PERSON - Hubert Chailan | 195 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
LIST OF FIGURES
Figure 1-1 : Belahouro Permit - Corner Points | 18 |
Figure 1-2 : Location Plan of the Belahoura Permit Area | 19 |
Figure 1-3 : Birimian Greenstone Facies | 20 |
Figure 1-4 : Location and Geology Plan | 21 |
Figure 1-5 : Proposed CIL Process Testwork | 23 |
Figure 1-6 : Proposed Heap Leach Testwork | 24 |
Figure 1-7 : Summary Resource Statement (30 September 2005) | 25 |
Figure 4-1 : Location Plan of the Belahoura Project Area | 35 |
Figure 4-2 : Tenement Schedule | 36 |
Figure 5-1 : Monthly Climatological Summary for the Project Site | 38 |
Figure 5-2 : Seismic Load Conditions | 41 |
Figure 6-1 : Belahouro Project Exploration History | 43 |
Figure 6-2 : Resolute Resource Estimate 2000 (Reported at a 1.0g/t Au Lower Cutoff Grade) | 45 |
Figure 6-3 : Ore Quest Resource Estimate December 2004 | 45 |
Figure 6-4 : Summary Resource Statement Inata Reported at a 0.5g/t Au Lower Cutoff Grade | 45 |
Figure 6-5 : Summary Resource Statement Inata Reported at a 1.0g/t Au Lower Cutoff Grade | 46 |
Figure 10-1 : Goldbelt Exploration Statistics (2004 to September 2005) | 52 |
Figure 14-1 : Summary of Drilling Database Statistics Grouped by Drill Type | 71 |
Figure 14-2 : Summary of Drilling Database Statistics Grouped by Company | 71 |
Figure 14-3 : Summary of Drilling Database Statistics Grouped by Laboratory | 71 |
Figure 16-1 : Gravity Cyanaidation Test Results on Inata Composites | 74 |
Figure 17-1 : Summary Statistics by Grouped Domain (2m Composites Uncut, Gold Grade (g/t)) | 78 |
Figure 17-2 : Summary of Upper Cuts including Pre and Post Application of High Grade Cap Sample | 79 |
Figure 17-3 : Summary Statistics Bulk Density Data (reported as SG) | 79 |
Figure 17-4 : Gold Variogram Models- Inata | 81 |
Figure 17-5 : Block Model Parameters | 82 |
Figure 17-6 : Sample Search Criteria | 83 |
Figure 17-7 : Change of support Parameters - emulating a 5mE x 10mN x 5mRL SMU | 84 |
Figure 17-8 : Inata Deposit - Confidence Levels of Key Criteria | 85 |
Figure 17-9 : Grade Tonnage Report - Multiple Indicator Kriging | 86 |
Figure 17-10 : Grade Tonnage Distribution Subdivided by N43-101 Resource Categories | 87 |
Figure 18-1 : Source of Main Input Parameters | 90 |
Figure 18-2 : Summary Mining Operating Costs | 90 |
Figure 18-3 : Summary Notional Mining Fleet | 91 |
Figure 18-4 : Pit Optimisation Options (Summary Whittle Four-X Input Parameters) | 92 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| |
Figure 18-5 : Summary of Pit Optimisation Results | 93 |
Figure 18-6 : Summary Pit Optimisation Results CIL Scenarios | 104 |
Figure 18-7 : Summary Pit Optimisation Results CIL and HL Combined Scenario | 106 |
Figure 18-8 : Summary Mine Production Schedule | 108 |
Figure 19-1 : Sample Data and Leach Extraction | 111 |
Figure 19-2 : Preg-robbing Tests | 112 |
Figure 19-3 : Total Gold Extraction (%) for CIL Tests | 112 |
Figure 19-4 : Ore Types Bond Work Index | 113 |
Figure 19-5 : Total Gold Extraction (%) for CIL Tests | 113 |
Figure 19-6 : Total Gold Extraction (%) | 114 |
Figure 19-7 : Heap Leach Pad: Preliminary Civil Works Programme (Double Stacking) | 124 |
Figure 19-8 : Volumetric Calculations - Paddock TMF | 130 |
Figure 19-9 : Cost Estimation - Paddock TMF Option | 130 |
Figure 19-10 : Summary Processing Recoveries | 134 |
Figure 19-11 : Capital Cost Estimate Summary Level 3. 2MTPA (Wet Tailings) | 135 |
Figure 19-12 : Capital Cost Estimate Summary Level 3 2MTPA (Dry Stack) | 136 |
Figure 19-13 : Processing Costs | 147 |
Figure 20-1 : Cost Estimation - Road Option B1 | 150 |
Figure 20-2 : Cost Estimation - Road Option B2 | 151 |
Figure 20-3 : Cost Estimation - Road Option B3 | 152 |
Figure 20-4 : Slurry TMF Preliminary Water Balance | 161 |
Figure 20-5 : Dry Stack Preliminary Water Balance | 162 |
Figure 20-6 : Cost Estimation - Water Supply Pipeline and Well field | 164 |
Figure 20-7 : Cost Estimation - Sona Barrage 2200m long @ 5m high | 165 |
Figure 20-8 : Cost Estimation - Bouro Barrage | 166 |
Figure 22-1 : Required Environmental Studies | 176 |
Figure 23-1 : Schedule | 179 |
Figure 23-2 : Owner's Costs - Capital Cost Estimate Summary Level 3 | 179 |
Figure 24-1 : Dry Tailings System - 2.0 MTPA Capital Cost Estimate: Summary Level 1 | 181 |
Figure 24-2 : Wet Tailings System - 2.0 MTPA Capital Cost Estimate: Summary Level 1 | 181 |
Figure 24-3 : Wet Tailings System - 1.5 MTPA Capital Cost Estimate: Summary Level 1 | 182 |
Figure 31-1 : Inata Field Duplicates - All Data | 196 |
Figure 31-2 : Inata Field Duplicates- Data Gt 0.1g/t | 197 |
Figure 31-3 : Blank Data | 198 |
Figure 31-4 : Standards Data | 199 |
Figure 31-5 : Standards Data | 200 |
Figure 31-6 : Standards Data | 201 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-7: Inata Pills-Data Augusts 2005 | 202 |
Figure 31-8: Inata Pills-Data Augusts 2005 | 203 |
Figure 31-9: Inata Pills-Data Augusts 2005 | 204 |
Figure 31-10: Inata Pills-Data Augusts 2005 | 205 |
Figure 31-11: Inata Pills-Data Augusts 2005 | 206 |
Figure 31-12 : Inata Field Duplicates - August 2005 Data GT 0.1g/t | 207 |
Figure 31-13 : Blank Data - August 2005 | 208 |
Figure 31-14 : Standards Data - August 2005 | 209 |
Figure 31-15 : Standards Data - August 2005 | 210 |
Figure 31-16 : Standards Data - August 2005 - Outliners Removed | 210 |
Figure 31-17 : Standards Data - August 2005 | 211 |
Figure 31-18 : Standards Data - August 2005 | 212 |
Figure 30-19 : Standards Data - August 2005 | 213 |
Figure 31-20 : Standards Data - August 2005 | 214 |
Figure 31-21 : Standards Data - August 2005 | 215 |
Figure 31-22 : Standards Data - August 2005 | 216 |
Figure 31-23 : Typical Sectional View of Regolith Domains Section 1589460N | 217 |
Figure 31-24 : Plan View of Mineralized Domains | 217 |
Figure 31-25 : Plan View of Mineralized Domains Inata North | 218 |
Figure 31-26 : Plan View of Mineralized Domains Inata Central | 218 |
Figure 31-27 : Plan View of Mineralized Domains Inata South | 219 |
Figure 31-28 : Typical Cross Section (1588580N) of Interpreted Mineralization Domains Inata North | 219 |
Figure 31-29 : Typical Cross Section (1586820N) of Interpreted Mineralization Domains Inata Central | 220 |
Figure 31-30 : Typical Cross Section (1585600N) of Interpreted Mineralization Domains Inata South | 220 |
Figure 31-31 : M Composites Log Probability Plot Domain 310 | 221 |
Figure 31-32 : Mean Vs Contribution to Metal Plot Domain 310 | 221 |
Figure 31-33 : Tailings Management Facility Options | 222 |
Figure 31-34 : Sona Barrage | 223 |
Figure 31-35 : Bouro Barrage | 224 |
Figure 31-36 : Primary Routes | 225 |
Figure 31-37 : Secondary Routes | 226 |
Figure 31-38 : Typical Road Details | 227 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
LIST OF DRAWINGS (Submitted Separately)
2Mtpa CIL Plant
0207 CRS 8001: PROCESS FLOW DIAGRAM - ORE INFEED
0207 CRS 8002: PROCESS FLOW DIAGRAM - CRUSHING AREA
0207 CRS 8003: PROCESS FLOW DIAGRAM - MILLING AREA
0207 CIL 8004: PROCESS FLOW DIAGRAM - CIL TANKS & THICKENER AREA
0207 STR 8005: PROCESS FLOW DIAGRAM - ACID WASH AREA
0207 STR 8006: PROCESS FLOW DIAGRAM - ELUTION AREA
0207 STR 8007: PROCESS FLOW DIAGRAM - ELECTROWINNING & SMELTING AREA
0207 CRG 8008: PROCESS FLOW DIAGRAM - CARBON REGENERATION AREA
0207 RGT 8009: PROCESS FLOW DIAGRAM - CYANIDE, CAUSTIC, FLOCCULANT & LIME
0207 RGT 8010: PROCESS FLOW DIAGRAM - AIR, OXYGEN & DIESEL SUPPLIES
0207 RGT 8011: PROCESS FLOW DIAGRAM - WATER DISTRIBUTION
1Mtpa CIL Plant
0207 CRS 8101: PROCESS FLOW DIAGRAM - ORE INFEED
0207 CRS 8102: PROCESS FLOW DIAGRAM - MILLING AREA
0207 CIL 8103: PROCESS FLOW DIAGRAM - CIL TANKS & THICKENER AREA
0207 STR 8104: PROCESS FLOW DIAGRAM - ACID WASH AREA
0207 STR 8105: PROCESS FLOW DIAGRAM - ELUTION AREA
0207 STR 8106: PROCESS FLOW DIAGRAM - ELECTROWINNING & SMELTING AREA
0207 CRG 8107: PROCESS FLOW DIAGRAM - CARBON REGENERATION AREA
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
0207 RGT 8108: PROCESS FLOW DIAGRAM - CYANIDE, CAUSTIC, FLOCCULANT & LIME
0207 RGT 8109: PROCESS FLOW DIAGRAM - AIR, OXYGEN & DIESEL SUPPLIES
0207 RGT 8110: PROCESS FLOW DIAGRAM - WATER DISTRIBUTION
1Mtpa Heap Leach Plant
0207 CRS 8201: PROCESS FLOW DIAGRAM -HEAP LEACH - ORE INFEED
0207 CRS 8202: PROCESS FLOW DIAGRAM - HEAP LEACH - CRUSHING AREA
0207 LCH 8203: PROCESS FLOW DIAGRAM - HEAP LEACH - WATER DISTRIBUTION
0207 CIP 8204: PROCESS FLOW DIAGRAM - HEAP LEACH - CARBON COLUMNS
0207 STR 8105: PROCESS FLOW DIAGRAM - ACID WASH AREA
0207 STR 8206: PROCESS FLOW DIAGRAM -HEAP LEACH - ELUTION AREA
0207 STR 8207: PROCESS FLOW DIAGRAM -HEAP LEACH - ELECTROWINNING & SMELTING AREA
0207 CRG 8208: PROCESS FLOW DIAGRAM - CARBON REGENERATION AREA
0207 RGT 8209: PROCESS FLOW DIAGRAM - CYANIDE, CAUSTIC, FLOCCULANT & LIME
0207 RGT 8210: PROCESS FLOW DIAGRAM - AIR & DIESEL SUPPLIES
0207 RGT 8211: PROCESS FLOW DIAGRAM - WATER DISTRIBUTION
0207GEN1206A PROPOSED SITE INFRASTRUCTURE - MORMOSSAL WATER DAM OPTION
0207GEN1207A PROPOSED SITE INFRASTRUCTURE- SONA DAM OPTION
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| |
APPENDICES | |
| |
1- SUMMARY PIT OPTIMISATION MODEL DEVELOPMENT | 227 |
| |
2 SUMMARY PIT OPTIMISATION MINING COSTS | 231 |
| |
3 DETAILED PIT OPTIMISATION RESULTS-1 MTPA CIL OWNER OPERATED MINING | 234 |
| |
4 DETAILED PIT OPTIMISATION RESULTS-1 MTPA CIL CONTRACT OPERATED MINING | 236 |
| |
5 DETAILED PIT OPTIMISATION RESULTS-1.5 MTPA CIL | 238 |
| |
6 DETAILED PIT OPTIMISATION RESULTS-2.0 MTPA CIL | 240 |
| |
7 DETAILED PIT OPTIMISATION RESULTS-1.0 MTPA HL - NO AGGLOMERATION | 242 |
| |
8 DETAILED PIT OPTIMISATION RESULTS-1.0 MTPA HL - WITH AGGLOMERATION | 244 |
| |
9 DETAILED PIT OPTIMISATION RESULTS-1.5 MTPA HL - NO AGGLOMERATION | 246 |
| |
10 DETAILED PIT OPTIMISATION RESULTS-1.5 MTPA HL - WITH AGGLOMERATION | 248 |
| |
11 DETAILED PIT OPTIMISATION RESULTS-2.0 MTPA HL - NO AGGLOMERATION | 250 |
| |
12 DETAILED PIT OPTIMISATION RESULTS-2.0 MTPA HL - WITH AGGLOMERATION | 252 |
| |
13 DETAILED PIT OPTIMISATION RESULTS-COMBINED HL &CIL EXCLUDING HL AGGLOMERATION | 254 |
| |
14 DETAILED PIT OPTIMISATION RESULTS-COMBINED HL &CIL INCLUDING HL AGGLOMERATION | 256 |
| |
15 PLAN VIEW & X SECTIONS OF CUTBACKS USED FOR MINE PRODUCTION SCHEDULE | 258 |
| |
16 ENVIRONMENTAL IMPACT STUDY BY SOCREGE (FRENCH VERSION) | |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
1 EXECUTIVE SUMMARY
1.1 Property Description
The project property is located within the Northern Region of the Republic of Burkina Faso, 220 km north north-east of Ouagadougou, close to the international boundary with Mali. The nearest town is Djibo which is 60km to the Southwest (see Figure 1-2).
The property covers an area of 1187 km2 of gently undulating land and has been subject to mineral exploration and artisanal workings for many years.
1.2 Exploration and Property History
The Belahouro Permit, licence no. 98-127, has an area of 1600km² and was granted to BHP Minerals International Exploration Inc on 3rd October 1994. The first renewal was granted on the 3rd October 1998, the second renewal, with a subsequent reduction in area, was granted on 3rd October 2001 and a third renewal, for a period of 1.5 years, was granted on 3rd October 2004. The Exploration Permit will expire on 3rd April 2006, however, Goldbelt will, in December 2005, submit an application for an Exploitation Permit for the Inata Project and in addition an Exploration Permit for the remaining Belahouro License Area.
Figure 1-1 : Belahouro Permit - Corner Points
| Coordinates Long/Lat (Clarke 1880) | UTM 30 WGS 84 |
Corners | | | | |
| Latitude North | Longitude West | Northing | Easting |
A | 14°30'07'' | 1°23'43'' | 1604000 | 673000 |
B | 14°30'07'' | 1°06'23'' | 1604000 | 704000 |
C | 14°25'00'' | 1°06'23'' | 1595000 | 704000 |
D | 14°25'00'' | 0°55'00'' | 1595000 | 725000 |
E | 14°17'20'' | 0°55'00'' | 1580000 | 725000 |
F | 14°17'20'' | 1°29'00'' | 1580000 | 664000 |
G | 14°22'36'' | 1°29'00'' | 1590000 | 664000 |
H | 14°22'36'' | 1°28'10'' | 1590000 | 665000 |
I | 14°28'16'' | 1°28'10'' | 1601000 | 665000 |
J | 14°28'16'' | 1°23'45'' | 1601000 | 673000 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
1.2.1 Location and Access
The Belahouro permit lies close to the Mali-Burkina Faso border in the northernmost part of Burkina Faso. The central part of the permit lies approximately 220 km NNE of the capital, Ouagadougou and the nearest large city is Dijbo, 60 km to the South-West.
Access is by gravel road from Ouagadougou to Kongoussi and Djibo (200 km) or by bitumen road from Ouagadougou to Ouahigouya (180km) then to Djibo by 110 km of gravel road. The Belahouro camp site can be accessed by driving east from Djibo along the Dori Road, for approximately 60 km, then north along a gravel road for 18 km to the village of Belahouro.
Crossing the permit is possible along village tracks or through open country as most areas are open grassland or low shrub. Access to large drainages is difficult due to dense vegetation and deep drainage erosion.
Figure 1-2 : Location Plan of the Belahouro Permit Area
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| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
1.3 Geology and Mineralization
Figure 1-3 : Birimian Greenstone Facies
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The Belahouro Project is located in the western portion of the Birimian Djibo Greenstone Belt. The belt has undergone regional lower greenschist metamorphism and is comprised of intermediate to mafic volcano-sedimentary successions and syn to post-kinematic granite and gabbro intrusions. Further emplacement of dolerite and felsic-porphyry has also occurred during and after mineralizing events.
Gold within the Belahouro Project is exclusively associated with mesothermal vein style mineralization, entirely consistent with the majority of Archaean and Proterozoic terrains worldwide, including the Birimian Series of West Africa. This style of mineralization is generally associated with regionally metamorphosed terrains that have experienced considerable deformation. As such, the deposits are invariably strongly structurally controlled, with the dominance of structural control increasing proportionally with metamorphic grade.
The principal gold mineralization within the Belahouro Project is confined to the Inata and the Fete Kole and Souma trends. The three Inata deposits (North, Central and South) are located over a strike length of 4km. The deposits appear to be related to the same mineralizing event and are associated with shearing. The Inata
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Central and Inata South deposits occur on the same mineralized zone, separated by intermittent low grades and cross-faults. Inata North lies some 300m west of the Inata Central-South trend. The shear zone encompassing the Inata deposits strikes north-northeast and dips steeply to the west-northwest. Gold occurs as free grains and sulphides associated with quartz veins or silicified rocks.
The Damba-Inata volcano-sedimentary province lies within the western third of the tenure. The Belahouro-Sona Basin occupies the central third, whilst the Feto Kole volcanic province is located in the eastern third.
The Damba-Inata volcano-sedimentary province is dominated by metasediments (epiclastics) with lesser basaltic to andesitic volcanics. The province contains multiple granitoid intrusions. The regional foliation trend is north-east.
Figure 1-4 : Location and Geology Plan
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The Belahouro-Sona basin is dominated by metasediments, generally turbiditic, with minor intermediate volcaniclastics. The southern part is traversed by an east-west shear zone. South of this zone, lithotypes are andesites, shales and chert.
The Fete Kole volcanic province is a complex of rhyodacitic, dacitic, andesitic and basaltic volcanics with associated pyroclastics and epiclastics. Within the volcanics, both pre-tectonic and syn to post tectonic
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
granitoids occur. The last major intrusive phase is a differentiated gabbro complex. The gabbro has intruded mainly into the volcanic package. At the base of the gabbro, titaniferous and vanadiferous magnetite banding can be found. Associated ultramafic units also occur within the gabbro and volcanic package.
1.4 Metallurgical Testing
Further Metallurgical test work is being carried out to further investigate and confirm the amenability of the ore to either CIL and/or Heap leach possibilities. The test work will produce accurate predictions on Bond Work Index and recoveries, hence processing costs can be reduced and pit optimizations can be rerun with a good probability in increasing the resource model.
1.4.1 Metallurgical Test Work for Belahouro - CIL Process
Samples were taken from the three Inata Deposits as follows:
North Inata Deposit - | 2 reverse circulation samples and 2 diamond cores |
Central Inata Deposit | 1 reverse circulation sample and 1 diamond core |
South Inata Deposit - | 1 reverse circulation sample |
1.4.1.1 Comminution test work proposed for diamond cores,
Sort core into mineralogical zones : Oxide, Transition, Fresh (3 holes, 3 zones per hole, total of 9 drill core composites)
Select 3 pieces of each zone for Unconfined Compressive Strength test, 3 pieces for Apparent Specific Gravity
Stage crush balance to nominally -19mm
Blend and split :
(a) 10kg for Bond abrasion index
(b) 15kg for Bond rod mill work index
(c) 12kg for Bond ball mill work index
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
1.4.1.2 Cyanide leach testwork proposed for RC drill chips samples
Sort RC chips into mineralogical zones: Oxide, Transition, Fresh (4 holes, 3 zones per hole, total of 12 composites).
Stage crush to 100% passing 2mm
Blend and split to source 1kg charges.
Figure 1-5 : Proposed CIL Process Testwork
2 x 500gram | 3 x 1 kg | 1 x 1 kg | 1 x 1kg |
Head Assay | Grind Test | Comparative Direct vs CIL | Optimum Grind Leaches |
| | Leach | |
Au x 2, Ag, total and | | | |
sulphide S | | | |
25 element ICP scan | Determine Grind Times | P80 passing 75 micron | Direct or CIL |
Total & organic C | P80 passing 150 micron | | P80 passing 150 micron |
Hg, Sb, Te | P80 passing 106 micron | 40% solids | P80 passing 106 micron |
True specific gravity | P80 passing 75 micron | pH 10 - 10.5 (lime) | P80 passing 75 micron |
Mineralogy | P80 passing 38 micron | 0.1% NaCN initial | P80 passing 38 micron |
| | maintain 500ppm | |
| | Oxygen sparged | |
| | For CIL add 20gpl carbon | 40% solids |
| | Samples at 2, 4, 8, 24, | ph 10 - 10.5 (lime) |
| | 48hrs (Au) | |
| | Residue Au x 2 | 0.1% NaCN initial |
| | | maintain 500ppm |
| | | Oxygen sparged |
| | | For CIL add 20gpl carbon |
| | | Samples at 2, 4, 8, 24, |
| | | 48hrs (Au) |
| | | Residue Au x 2 |
| | | Size assay residue (Au) |
Additional test work,
Oxygen uptake rate (optimum P80, direct or CIL leach)
Pulp viscosity measurement (optimum P80)
Effect of dosing with kerosene to counteract pregrobbing behaviour
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Optimum NaCN concentration at optimum P80 (e.g. 0.2 / 0.1%, 0.05 / 0.025%, compared to 0.1 / 0.05%)
Gravity recoverable gold content (mill 5kg to optimum P80, centrifugal concentrator, amalgamate concentrate, assay products)
Vendor application : settling / thickening characteristics, filtration characteristics (suggest Oxide, Transition, Fresh composites)
Confirmatory test work : use composites based on mining schedules (to be defined)
1.4.2 Metallurgical Test Work for Belahouro Project - Heap Leach
Blend and split sub samples for evaluation
Stage crush sub samples to achieve three designated P100's (50mm, 25mm, 12mm)
Blend and split each P100 size to source sub samples for evaluation
Figure 1-6 : Proposed Heap Leach Testwork
Head size assay(5kg) | Fine grind leach(1kg) | Coarse particle Leach (3kg) | Cement agglomeration /percolation | Column leach Tests (50kg) |
From top size to 2mm | Stage crush to -2mm | At each of three P100'S | 3 Cement doses(5kg each) | Optimum crush size |
Allow for 6 fractions(Au) | Fine grind to nom P80 75micron | 40% solids | Determine percolation rate | Agglomerate if required |
| 48hour leach, 500 ppm NaCn, time series | Ph 10-10.5 (lime, maintained) | | 30 Day leach |
| Assay residue Au | 500ppmNaCN (maintained) | | 5 day week irrigation |
| | Solns at 2, 4, 8, 24, 48, 72, 96, 120hrs (Au) | | Contact solution with carbon |
| | Size assay residue as per head | | Preg & barren solution assays |
| | | | Leach residue size assay |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
1.5 Mineral Resources
Resource estimates for the Belahouro Gold Project (Inata) have been generated by RSG Global on the basis of analytical results available up to 30 September 2005. The resource models were derived via geological and modelling of the individual mineralized zones. Estimation involved the application of Multiple Indicator Kriging (MIK). Technique selection was based on the quantity and spacing of available data, and the interpreted controls on, and styles of, mineralization under review.
RSG Global also completed a detailed assessment of all analytical quality control data applied in resource estimation. At the time of resource estimation, no material bias had been identified, and the analytical precision for both standards and field duplicate data generally lie within accepted industry limits for mesothermal vein gold deposits.
The summarised Resource Statement in Figure 1-7 has been determined as at 30 September 2005 and reported in accordance with Canadian National Instrument 43-101, Standards of Disclosure for Mineral Projects of February 2001 (the Instrument) and the classifications adopted by CIM Council in August 2000. Furthermore, the resource classification is also consistent with the Australasian Code for the Reporting of Mineral Resources and Ore Reserves of December 2004 (the Code) as prepared by the Joint Ore Reserves Committee of the Australasian Institute of Mining and Metallurgy, Australian Institute of Geoscientists and Mineral Council of Australia (JORC).
Figure 1-7 : Summary Resource Statement (30 September 2005)
Grade Tonnage Report - Multiple Indicator Kriging
Selective Mining Unit 5m E x10m N x 5m RL 30th September 2005
Cutoff | Indicated | Inferred |
Grade | Tonnage (t) | Au g/t | ozs | Tonnage (t) | Au g/t | ozs |
0.4 | 15,836,000 | 1.9 | 945,000 | 5,593,000 | 1.3 | 236,000 |
0.5 | 15,043,000 | 1.9 | 933,000 | 4,869,000 | 1.4 | 226,000 |
0.7 | 13,121,000 | 2.1 | 895,000 | 3,923,000 | 1.6 | 207,000 |
1.0 | 10,297,000 | 2.5 | 818,000 | 2,811,000 | 2.0 | 177,000 |
1.5 | 6,964,000 | 3.1 | 686,000 | 1,600,000 | 2.5 | 129,000 |
The bulk density of the rock has been estimated as follows:-
Oxide 2.1 t/m3
Transition 2.5 t/m3
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Primary 2.7 t/m3
1.5.1 Pit Optimisation & Sensitivity
A summary of the principal pit optimisation results, based on the total resource and the maximum undiscounted cashflow is shown in Figure 1-8.
Figure 1-8 : Summary of Pit Optimisations
Item | | CIL Only | HL Only | CIL and HL |
| Combined |
Unit | Owner Mining 1 | Contract Mining | No Agglomeration | With Agglomeration | HL(N) 2 | HL(A) 3 |
Throughput | Mtpa | 1.0 | 1.0 | 1.5 | 2.0 | 1.0 | 1.5 | 2.0 | 1.0 | 1.5 | 2.0 | 1.0 / 1.0 | 1.0 / 1.0 |
Base of pit | mRL | 155 | 200 | 200 | 180 | 235 | 230 | 230 | 235 | 235 | 235 | 200 | 200 |
Total material | Mt | 46.5 | 20.5 | 23.2 | 30.1 | 13.0 | 15.3 | 15.8 | 10.8 | 12.2 | 13.0 | 21.8 | 20.6 |
Waste | Mt | 39.9 | 16.7 | 18.7 | 24.9 | 9.3 | 11.2 | 11.5 | 7.8 | 8.8 | 9.4 | 17.0 | 16.5 |
Strip ratio | w:o | 6.0 | 4.4 | 4.1 | 4.8 | 2.5 | 2.7 | 2.7 | 2.6 | 2.6 | 2.5 | 3.6 | 4.0 |
Mill Feed | Mt | 6.6 | 3.8 | 4.5 | 5.2 | 3.7 | 4.1 | 4.2 | 3.0 | 3.4 | 3.7 | 2.6 / 1.3 | 3.7 / 0.4 |
Grade | g/t | 2.7 | 2.8 | 2.6 | 2.6 | 2.4 | 2.4 | 2.3 | 2.7 | 2.6 | 2.4 | 3.0 / 1.0 | 2.8 / 0.9 |
Recovered gold | koz | 539 | 324 | 355 | 406 | 167 | 181 | 184 | 149 | 160 | 167 | 335 | 329 |
The base case of 1.0 Mtpa CIL, owner operated mining fleet scenario was based on the latest testwork from November and includes increasing the pit slope angles by 40to 50in the oxide and primary ores.
Further sensitivity analysis demonstrated that a $50 /oz (11%) change in the gold price represents a 27% change in the undiscounted operating cashflow.
Increasing the overall pit wall slope angle for oxide ores from 380to 450resulted in a 4% decrease in the cash cost. In the current resource models, the pit shells do not materially extend into the primary rock, therefore increasing the wall angles does not have a material effect on the optimum pit shell.
An indicative mining schedule was developed through Whittle Four-X.
____________________________________
1 Includes updated metallurgical and geotechnical parameters derived from preliminary 2005 testwork.
2 Heap leach without agglomeration
3 Heap leach with agglomeration
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
For the purposes of this mining study , pit shell 26 of the 1.0 Mtpa CIL, owner mining scenario was selected as the basis for mine production scheduling, the results are indicated in Figure 1-9.
Figure 1-9 : Pit Shell 26 Scheduling
| Total | | Low Grade | Strip | Potential Mill Feed | Gold |
Period | Material | Waste 1 | Tonnes | Grade | Ratio | Tonnes | Grade | Insitu | Rec |
Yr | Mt | Mt | Mt | g/t | w:o | Mt | g/t | koz | koz |
1 | 5.3 | 4.3 | 0.2 | 0.7 | 4.3 | 1.0 | 2.5 | 81.5 | 77.4 |
2 | 9.2 | 8.2 | 0.2 | 0.7 | 8.2 | 1.0 | 2.6 | 83.0 | 78.8 |
3 | 9.5 | 8.5 | 0.3 | 0.7 | 8.5 | 1.0 | 2.6 | 82.1 | 78.0 |
4 | 9.5 | 8.5 | 0.3 | 0.7 | 8.5 | 1.0 | 2.8 | 89.5 | 85.0 |
5 | 9.5 | 8.5 | 0.3 | 0.7 | 8.6 | 1.0 | 2.4 | 75.6 | 71.6 |
6 | 8.3 | 7.3 | 0.3 | 0.7 | 7.3 | 1.0 | 2.1 | 68.5 | 64.9 |
7 | 3.2 | 2.2 | 0.1 | 0.7 | 2.2 | 1.0 | 3.2 | 102.0 | 93.6 |
8 | 1.0 | 0.5 | 0.0 | 0.7 | 1.2 | 0.4 | 3.0 | 41.9 | 37.8 |
Totals | 55.4 | 48.0 | 1.6 | 0.7 | 6.5 | 7.4 | 2.6 | 624.1 | 587.0 |
1.6 Mining Operations
It was assumed that the Belahouro Gold Project mine will selectively mined from a conventional open pit by either owner operated or contract mining.
Drilling and blasting will be performed on 5m high benches, with blasted material excavated by backhoe excavators in two discrete flitches, each nominally of 2.5m height.
The use of RC drilling, assays every 2.5m sample and interpretation of the results by mine geologists are the primary methods of grade control envisaged for the Project. Further investigations may be undertaken later to optimise sample length and drill pattern to ensure appropriate statistical methodologies can be utilised to minimise dilution and maximise ore extraction.
A notional drilling pattern of 10 m x 5 m was adopted for the study, with 115% of the expected ore zones assumed to be grade control drilled, to ensure sufficient overlap into adjacent low grade or waste such that ore is not missed. All RC holes are assumed to be drilled at a 60º angle.
The mining equipment which is considered to be suitable for the Project would include 80 t to 180 t backhoe excavators and off-highway haul trucks with a payload capacity of between 65 t to 92 t.
____________________________________
1 Waste is inclusive of low grade material.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The size of equipment would be dependent on the required ore mining selectivity and the final selected ore mining rate. It is recommended that a bench height optimisation study be carried out to assess mining dilution and recovery control in relation to mining costs.
1.7 Mineral Processing Plant
The mineral processing plant, described in more detail in section 19 of this Report, uses the Carbon in Leach process commonly employed in West Africa, however, the Heap Leach process has also been considered for the lower grade ore. Due consideration has been taken to the water requirement of the plant and a dry tailings disposal system has been considered along with co deposition of waste rock, as an alternative to the more traditional wet tailings system.
1.8 Mine Overhead
Mining will be carried out either as an owner operated or as a contract mining scenario. The costs of the mine management have been included in the mine operating costs.
1.9 Manpower
The manpower requirements have been estimated using the minimum of expatriate labour and only in strategic posts with a local subordinate who will in time take over the post.
1.10 Environmental Considerations
A pre-feasibility level environmental study was carried out by SRK in April 1999 for the joint venture between BHP and Resolute Limited. An environmental base line study and an environmental impact assessment (EIA) has been carried out by Socrege SA of Burkina Faso (see Appendix 16). The EIA is a legislative requirement of the Burkinabe Government prior to the issuing of a mining permit.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
1.10.1 Water Supply
The supply of water for the plant is critical and as such considerable effort has been made to ascertain robust solutions. Four solutions have been considered in depth in conjunction with a water saving plant design in terms of tailings disposal. Three of the solutions are barrages in the Sona, Bouro and Mormossal areas, the fourth is a bore field some 40 km away in the Ninga area.
Each solution has its own set of implications both environmentally and financially, which are discussed in the body of the report.
The barrages are subject to the predicted rainfall and will affect a considerable area along with both major and minor villages. The bore field is in unproven water reserves and may affect the ecology of the area.
1.11 Capital and Operating Cost Estimates
The Cost Estimates have been prepared on the basis of installing new and proven equipment and ore throughputs of 2Mtpa, 1.5Mtpa and 1Mtpa have been considered as requested by Goldbelt. Written quotations have been obtained for major items of equipment; otherwise, current prices from the GBM database were employed. The uncertainty of the Bond Work Index has had a major impact both on size of mill and size of power station impacting on processing costs and capital costs. This will be clarified by the ongoing metallurgical test work and should provide grounds for reductions in the costs.
1.12 Markets and Contracts
The gold will be sold directly to the refiners with revenue raised at that point. There are no forward sales envisaged at this time and would only be undertaken as part of a financing package where forward sales of gold would be a lender requirement.
1.13 Conclusions and Recommendations
Current exploration has confirmed the significant potential of the Belahouro Project. Recent observations and current exploration models indicate that the known mineralization may represent the periphery of a larger mineralized system. Significant potential exists to identify open resources on the Souma trend. In addition,
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
the Fete Kole Trend represents a significant exploration target albeit that the geological controls on mineralization are complex and to date poorly understood. The controls on the Inata Deposits mineralization are generally well understood allowing effective targeting for future exploration programs, including logical step out drilling which has the potential to extend the known resources north of Inata North and south from the Inata South deposit.
High quality data has been collected by Goldbelt in recent exploration phases. The analytical accuracy and precision of assaying is high and suitable for resource estimation. Insufficient bulk density data is currently available to allow high confidence density stratification. This is considered a short coming of the current database and has precluded the classification of Measured Resources.
Infill drilling has confined the presence and continuity of analous zones of mineralization at Inata. While significant short scale variability exists in the gold grades, the 25m or better spaced drill fences are considered to appropriate to allow high confidence resource definition consistent with the Measured and Indicated Mineral Resource categories. The implication of the moderate short scale variability in mining and grade control is that a high quality grade control drilling will be required to enable selective grade control practises. It is likely that a high density of drilling, for example an 8m x 5m pattern, will also be required for adequate ore demarcation.
RSG Global's approach in defining broader mineralization zones for estimation that are based on a nominal 0.3g/t Au lower cut off grade and geology is considered appropriate for this style of vein hosted mesothermal gold deposit when open cut mining is considered. Opportunity exists to constrain higher grade shoots based on an elevated lower cut off grade at Inata North and to a lesser extent Inata Central. In these areas, potential exists to target underground mining.
The interpretation mineralization interpretation is consistent with the geological interpretation constructed on site and further refined by RSG Global. Refinement of the geological model is important as detailed scheduling maybe dependant on geological features. For example, optimum process performance may be dependant on the ability to blend ore types which have associated hydroscopic clays (viscosity complications) or are dominated by carbonaceous shales that have preg robbing characteristics.
Based on the completed study, the Consultants recommend the following works be undertaken :
Additional bulk density data is collected for the Inata deposits. The density data should be collected such that a suitable spatial, weathering, and lithological spread of information is available to enable a robust density model construction.
Step out drilling is completed to extend or close of the Inata North and Inata South trends.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Additional drilling is focused on the Souma trend and Minfo prospects which have the potential to augment the resource and reserve base at Belahouro.
If not already available, a suite of multi-element assays be collected. This can readily be achieved by assay of umpire assay pulps.
Ongoing refinement of the geological model is completed.
A bench height study is undertaken to ascertain the optimum bench heights.
Further metallurgical test work is carried out to establish meaning full parameters.
Further investigation is carried out to establish the optimum water supply to the mine.
Further investigation is carried out to establish the optimum road alignment to the mine.
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
2 INTRODUCTION AND TERMS OF REFERENCE
This Technical Review, prepared and compiled by GBM ("the Consultants"), provides a summary of the findings of the Belahouro Gold Project technical analysis undertaken by RSG (Global) in June and July 2005 and drilling data compiled up to November 2005. The Review provides Goldbelt Resources with the options available to them for further treatment of the resource and the necessary data for the compilation of their application for an exploitation permit to the Burkinabe Government. The Belahouro Project, located in Burkina Faso, contains several gold deposits.
This Review has been prepared generally in accordance with the requirements of National Instrument 43-101 (NI 43-101), Companion Policy 43-101CP and form 43-101FI of the Ontario Securities Commission (OSC) and Canadian Securities Administrators (CSA). It is not however intended to be a submission to those commissions.
All monetary values expressed in this document will be in United States of America Dollars (US$). The following Exchange Rates have been used :
GBP 1 = $1.757
Euro 1 = $1.1918
ZAR 1 = $0.1464
CFA 1 = $0.0018
2.1 Principal Sources of Information
In addition to site visits made by the Consultants, extensive information for the report was provided by Goldbelt Management in terms of previous reports and studies by independent operators and other consultants.
GBM have made all reasonable attempts to verify this information and have sent a draft of this report to Goldbelt with a written request to make comments and rectify any erroneous statements made.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
3 DISCLAIMER
The Consultants are not qualified to provide extensive comment on legal issues associated with the Belahouro Gold Project and included in Section 4 of this Review.
The assessment of the mining aspects of the Belahouro Project, included in Sections 17 and 18 of this review, is based entirely on information and reports provided by independent mining consultants upon whom GBM has relied.
Similarly, the Consultants are not qualified to provide extensive comment on hydrological, environmental and geotechnical issues associated with the properties referred to in this Review. Assessment of these aspects has relied heavily on information provided by Goldbelt, along with reports previously prepared by other independent consultants.
No warranty or guarantee, be it express or implied, is made by the Consultants with respect to the completeness or accuracy of the legal aspects, metallurgy, processing and scheduled mill feed referred to in this document. The consultants do not accept any responsibility or liability in any way whatsoever to any person or entity in respect of these parts of this document, or any errors in or omissions from it, whether arising from negligence or any other basis in law whatsoever.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
4 PROPERTY DESCRIPTION AND LOCATION
4.1 Background Information on Burkina Faso
Burkina Faso is landlocked and bordered by Benin (306 km border length), Cote d'Ivoire (584 km), Ghana (549 km), Mali (1,000 km), Niger (628 km), Togo (126 km). Burkina Faso has a land area of 274,200km2, comprised of a generally flat to dissected undulating plains and hills in the west and southeast. Natural resources include manganese, limestone, copper, nickel, bauxite marble, phosphates and salt. Burkina Faso's population is estimated at 13.9 million (2005) and is made up of several ethnic groups dominated by the Mossi (over 40%). French is the official national language. Burkina Faso gained its independence from France in 1960.
Burkina Faso is one of the poorest countries in the world, has few natural resources and a fragile soil. About 90% of the population is engaged in (mainly subsistence) agriculture, which is vulnerable to variations in rainfall. Cotton is the key crop. Industry remains dominated by government-controlled corporations. Following the African franc currency devaluation in January 1994 the government updated its development program in conjunction with international agencies, and exports and economic growth have increased. Maintenance of macroeconomic progress depends on continued low inflation, reduction in the trade deficit, and reforms designed to encourage private investment. The bitter internal crisis in neighbouring Cote d'Ivoire continues to restrict trade and industrial prospects and deepens the need for international assistance.
Many observers consider that the gold potential of Burkina Faso is significantly under-developed, however, the low level of investment in exploration and general lack of infrastructure have historically hampered development within the gold sector. Regardless, interest (albeit it somewhat subdued) in the mining and exploration sector has continued at the hands of both major and junior companies alike.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
4.2 Project Location
The Belahouro Project is located approximately 220km north northeast of Ouagadougou, the capital of Burkina Faso, at a latitude of 11º 40' N and longitude of 13º 00' N, 2º 00' W (see Figure 4-1).
Figure 4-1 : Location Plan of the Belahouro Project Area

4.3 Land Area
The Belahouro Gold Project comprises one large permit covering an aggregate area of 1,187km2 as shown in Figure 4-2 below. The concession boundaries have not been legally surveyed, but are described by latitude and longitude via decree.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | |
Figure 4-2 : Tenement Schedule |
| | | | |
Permit Name | Licence Type/Number | Area | Date Extension Granted | Expiry |
Belahouro | 2003-081/2003-091 | 1,187km2 | 4 October 2004 | April 3, 2006 |
Total | | 1,187km2 | | |
RSG Global has not independently verified, nor is it qualified to independently verify, the legal status of the mineral properties in Burkina Faso in which Goldbelt is understood to have an interest. In preparing this review, RSG Global has assumed that the properties are lawfully accessible for evaluation and mineral production.
4.4 Mining Claim Description
The Belahouro Permit has been granted by the Burkina Faso government and consists of one large permit, approximately 1,187km2 in size located between 14º 17'20" to 14º 30'07"N latitude and 0º 55'00" to 1º28'10"W longitude in the northern region of Burkina Faso (Figure 4-2). The permit has been granted to the company by the Ministère des Mines, de l'Energie et des Carrières and cannot be contested by any other company. The government maintains a 10% carried interest in all permits issued although not until the Exploitation Stage.
The Belahouro Permit is a permit which allows the company to carry out all types of exploration provided certain reporting conditions and fee payments are maintained with the Ministère des Mines, de l'Energie et des Carrières. All exploration permits granted in Burkina Faso are for an in initial three-year period after which the permit can be renewed for two additional three-year extensions. After the second three-year period, the company must reduce the area of the exploration permit by 25%. After the third three-year period, the exploration permit must convert to an exploitation licence unless other arrangements for extension or grant of a new exploration permit are made.
The original Belahouro exploration licence of 1600 km2 in size was granted in October 1994 and further renewed for another three years in October 1998. As per the requirements in Burkina Faso, the 2nd renewal was granted in October 2001 with the mandatory 25% reduction to in size to 1187km2. On 11 November, 2004, the Belahouro permit was granted an extension of the expiry date until 03 April, 2006.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
4.5 Agreements and Encumbrances
GBM & RSG Global are not qualified to provide significant comment on legal matters pertaining to the Belahouro Project, however advice provided by Goldbelt Limited suggests that the mineral properties comprising the Belahouro Gold Project are subject to a third party agreement. The BHP Royalty agreement (2.5% of gross sales) is now owned by International Royalty Limited.
4.6 Environmental Liabilities
GBM & RSG Global are not aware, nor have we been made aware, of any significant environmental liability associated with the Belahouro Project.
4.7 Permits
All resources and areas of more significant exploration potential defined to date lie within the Belahouro Permit. The Permit provides Goldbelt Resources the right to explore for minerals, however further permitting would be required prior to mine under the general mining code (Law No 023/97/II/AN) of Burkina Faso.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
5 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY
5.1 Property Access and Freight Routing
The project property is located within the Northern Region of the Republic of Burkina Faso, 220 km North Northeast of Ouagadougou, close to the international boundary with Mali. The nearest town is Djibo which is 60km to the Southwest, see Figure 1-2.
The property access is more fully detailed in section 20.1 and requires the building of 35 km of access road between site and the road connecting Djibo and Belehede which is a laterite surfaced all weather road.
Freight routing is by sea in containership to the Ghanaian port of Tema and then by road transport up through Ghana into Burkina Faso on to site via Ouagadougou.
5.2 Physiography and Climate
The general topography is slightly undulating and the vegetation is generally savannah type with acacia and the occasional baobab tree. Very little subsistence farming is evident with the exception of migratory grazing of goats and cattle.
The regional climate is strongly influenced by the Sahara and is defined as a semi-tropical environment of soudanien type characterised by one distinct dry season and one well defined rainy season from June to September. During November to January, the Harmattan Wind mobilises fine dust from the Sahara creating cool and dry conditions. A summary of the meteorological data used for the Belahouro Project site pre-feasibility project is presented in Figure 5-1. All data is summarised from Ouahiqouya only.
Figure 5-1 : Monthly Climatological Summary for the Project Site
| Precipitation | Evaporation 1 | Temperature 2 | Wind 3 |
Month | (1978-96) | (1961-94) | (1925-94) | (1961-94) |
| | | (mm) | Wettest | Driest | (mm) | (Deg C) | (m/s) |
| Ave | Max 4 | Min 5 | (1988) | (1993) | Average | Max | Min | Max | Min | Ave |
Jan | 0 | 0 | 0 | 0 | 0 | 238 | 343 | 183 | 33 | 14 | 1.5 |
Feb | 0 | 0 | 0 | 0 | 0 | 260 | 370 | 210 | 36 | 16 | 1.5 |
__________________________ |
1 Incomplete Record |
2 Incomplete Record |
3 Incomplete Record |
4 Maximum rainfall averaged over the 10 wettest years for all stations |
5 Minimum rainfall averaged over the 10 driest years for all stations |
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| | | | | | | | |
| Precipitation | Evaporation 1 | Temperature 2 | Wind 3 |
Month | (1978-96) | (1961-94) | (1925-94) | (1961-94) |
| (mm) | (mm) | (Deg C) | (m/s) |
| Ave | Max 4 | Min 5 | Wettest | Driest | Average | Max | Min | Max | Min | Ave |
| | | | (1988) | (1993) | | | | | | |
Mar | 2 | 14 | 0 | 0 | 0 | 329 | 453 | 261 | 39 | 21 | 1.6 |
April | 7 | 42 | 0 | 25 | 1 | 336 | 442 | 282 | 42 | 25 | 1.5 |
May | 19 | 78 | 0 | 0 | 3 | 325 | 382 | 251 | 41 | 27 | 1.8 |
June | 58 | 100 | 19 | 71 | 60 | 270 | 326 | 167 | 39 | 26 | 2.1 |
July | 114 | 233 | 46 | 163 | 48 | 211 | 296 | 115 | 35 | 24 | 1.8 |
Aug | 161 | 300 | 30 | 293 | 132 | 166 | 238 | 71 | 33 | 23 | 1.2 |
Sept | 57 | 177 | 0 | 47 | 60 | 169 | 223 | 83 | 35 | 23 | 1.0 |
Oct | 5 | 28 | 0 | 0 | 16 | 229 | 270 | 176 | 39 | 23 | 0.8 |
Nov | 0 | 0 | 0 | 0 | 0 | 236 | 306 | 194 | 37 | 18 | 1.1 |
Dec | 0 | 3 | 0 | 0 | 0 | 228 | 319 | 179 | 34 | 15 | 1.2 |
Totals | 423 | | | 599 | 320 | 2996 | | | | | |
5.3 Geology
5.3.1 Regional Geology
The Belahouro Project, Inata Prospect, is located within western environs of the Djibo greenstone belt, which comprises volcanic, volcano-detrital and sedimentary formations intruded by syn to post tectonic granitoids, impacted by metamorphism.
A detailed analysis of the regional geology is currently outside the scope of this report and the reader is directed to former pre-feasibility studies for the site.
5.3.2 Local Geology
The Inata mineralization is located within the Birimian Group of rocks of the Proterozoic age, close to the contact zone between the Turbiditic and Epiclastic sediments (see Figure 1-3). An east-west section through Inata suggests that a coarse to fine grained epiclastics passes to a sedimentary association comprising black shales, pelites and chert bands. The contact zone between the volcano-sediments and sediments is underlined by a silicified shear zone.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Preliminary pit geotechnical work was completed by George, Orr and Associates Pty Ltd in August 1999, a summary of which is provided in their report 'Belahouro Gold Project, Burkina Faso, Inata North and Inata Central Deposits - Preliminary Geotechnical Assessment'.
In summary, the oxide rock mass is extensively sheared and is expected to be highly weathered and dry. The wall rocks were judged to be of 'very poor' to 'poor' quality, reflecting on the weak nature of the rock and the presence of numerous structural geological defects.
Further geotechnical work is required for a full feasibility level study.
The overall slope angles used in this study range from 38º to 55º.
5.4 Hydrology and Hydrogeology
No definitive geohydrological records on aquifer and ground water elevations are available for the concession area, with the exception of first strike water levels reported within exploration boreholes.
Ground water elevations within the environs of the open pit are related to the macro/micro geological relief and are reported to be deeper than 80 m. Although local river alignments were in flood during the recent site visit, the average standing water ground level from well observations appears to be approximately 20 m below ground level.
5.5 Seismicity
There are no known seismic risk assessment studies for the area of the Belahouro Project. However, the map of seismic risk for Africa describes the project area as a zone of low seismic risk with seismic acceleration factors lower than 0.04g.
Contemporary practice requires that major structures are designed to resist the Operating Basic Earthquake (OBE) and Maximum Credible Earthquake (MCE). Based on this and in comparison with seismic risk assessments for projects located in areas of similar seismic risk in other regions of Africa (Ghana), the values shown in the Figure 5-2 below will be used for the different loading conditions in the stability analyses of the dam embankments.
The Maximum Credible Earthquake (MCE) has not been defined. It is recommended that a site specific seismic hazard assessment is undertaken for the project prior to detailed design.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 5-2 : Seismic Load Conditions
| Maximum Ground | Design Ground | Minimum Acceptable |
Design Case | Acceleration | Acceleration 1 | Safety Factor |
Static | 0.00 g | 0.00 g | 1.50 |
Pseudo Static - OBE 2 | 0.03 g | 0.02 g | 1.25 |
Pseudo Static - MCE 3 | n-d | n-d | 1.00 |
5.6 Local Resources and Infrastructure.
Over 80% of the population of Burkina Faso are engaged in subsistence agriculture and nomadic stock keeping. A significant proportion of the male labour force migrates annually to neighbouring countries, particularly Ghana and Cote d'Ivoire, for seasonal employment. Most workers are employed in the agriculture sector in growing peanuts, shea nuts, cotton, millet, corn rice, sesame sorghum and tending livestock. Burkina Faso exports cotton, animal products and gold and imports machinery, food products and petroleum.
Belahouro is the largest permanent village located approximately 30km east of the Inata project. A number of nomadic communities exist in the surrounding district. These communities survive on subsistence farming and small artisan gold mining operations. The artisan workings are based on outcropping mineralization and the reworking of anomalous laterite gravels.
As is common in most of the countries in this part of West Africa, regional infrastructure in Burkina Faso is poor, with few sealed roads and limited power distribution. Water, during the dry season in Belahouro, is only available from limited water bores operated by hand pumps. Village housing is a combination of mud huts and portable straw huts.
The Goldbelt central camp situated near the Belahouro village has 2 generators, comfortable accommodation for up to 40 people, a 30,000 litre diesel storage and a permanent supply of borehole water.
__________________________ |
1 The coefficient 2/3 of the maximum ground acceleration has been used in accordance with the recommendations of "The Technical Guide for Seismic Risk in the United Kingdom" from the Building Research Establishment Report - C1/SfB 187(H16), 1991. |
2 Operating Base Earthquake |
3 Maximum Credible Earthquake |
|
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
6 HISTORY OF PREVIOUS WORK RESULTS
6.1 Owners
Exploration at Belahouro commenced in the early 1980's with four different operators exploring. The Bureau des Mines et de la Geologie du Burkina (BUMIGEB) explored the Belahouro Project between 1984 and 1991, prior to BHP Mineralis International Exploration (BHP) being granted tenure over Belahouro in 1994. Subsequently, Resolute Limited (Resolute) entered into a joint venture with BHP. The Resolute-BHP joint venture was in effect from 1998-2003 after which the concession was operated by Resolute who continued the program on its own.
In February 2004, Goldbelt entered into an agreement with Resolute for the acquisition of Resolute's 100% interest in six gold exploration properties in Burkina Faso. The properties are known as the Belahouro, Wakuy, Karba, Kopoi and Bouhaoun properties which are held by Resolute (West Africa) Limited ("RWA"), an indirect subsidiary of Resolute. Goldbelt acquired RWA for cash and securities of Goldbelt in March 2005.
Under the agreement, Goldbelt acquired the Burkina Faso assets of Resolute by the purchase from a subsidiary of Resolute of all the outstanding shares of RWA, a Jersey company, which in turn holds all the outstanding shares of Resolute (West Africa) Mining Company SA, a Burkina Faso company.
6.2 Exploration History
Exploration at Belahouro commenced in the early 1980's with four different operators exploring. Early exploration was completed by BUMIGEB (1984-1991), focused predominately on the regions near the villages of Belahouro and Souma. This exploration targeted quartz veining in the Inata, Souma and Fete Kole prospect areas.
BHP began work at Belahouro in 1994, mapping and interpreting the project geology with the aid of available airborne magnetics. BHP exploration include soil geochemistry ("B" horizon soil sampling), which identified numerous gold anomalies. BHP used the soil geochemistry and surface mapping to guide further exploration which included trenching and wide spaced RC and diamond core drilling mainly at Fete Kole, Inata and Souma.
Resolute, as operators of the Resolute-BHP joint venture from 1998 to 2003, focused exploration activities on the Inata Deposit, with minor work also carried out at Souma. The principal objective of the joint venture was to develop the Inata Deposit, locate possible mineralized extensions and to outline additional resources at
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Souma. The exploration completed included RAB, RC, and DD drilling and further soil geochemistry (see Figure 6-1). In addition, other targets were tested including Pali and Fete Kole as well as other targets elsewhere in the Belahouro property.
After assuming full ownership from 2003, Resolute completed additional rock and soil sampling, ground geophysics (TEM and magnetometer surveys) and additional geological mapping. In aggregate, direct exploration expenditure within Burkina Faso by Resolute and BHP was approximately $7.75 million.
Detailed Transient Electromagnetic (TEM) data was acquired over Inata in late 2002/2003 using a SiroTEM Mk II transmitter/receiver through a 200m square loop with 200m moves between stations and 400m between traverses. The TEM data appears effective in locating shear zones, and therefore likely zones of gold mineralization. This data has allowed existing mineralization to be modelled within a much more detailed geological framework and has therefore led to the generation of new exploration targets. This data will assist follow-up exploration.
Since February 2004, Goldbelt completed a 381 hole drilling program at Belahouro that sought to evaluate mineral extensions at Inata, Minfo and Souma for a total of 41,050.9m. The Inata resources calculated in this report are based on the data obtained from this drilling program. The work performed to the end of 2003 is summarized in Figure 6-1.
Figure 6-1 : Belahouro Project Exploration History
Work Completed | Comments | Total |
Drilling | | |
DD (Diamond Drilling) | BUMIGEB and BHP | 10 holes / 1271m |
DD | Resolute - BHP JV | 11 holes / 1185m |
DD | Resolute | 2 holes / 1025m |
RC (Reverse Circulation) | BHP | 326 holes / 22972m |
RC | Resolute - BHP J.V | 451 holes / 30830m |
RC | Resolute | 10 holes / 1145.5m |
RAB (auger) | BHP | 473 holes / 3783m |
RAB(Rotary Air Blast) | Resolute - BHP J.V | 903 holes / 23253m |
Geochemistry | | |
Soil samples | Reported only BHP | 3461 |
Soil samples | Resolute - BHP J.V | 6792 |
Rock chip | Reported only BHP | 407 |
Rock chip | Resolute - BHP J.V | 85 |
Rock chip | Resolute | 1301 |
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| | |
Work Completed | Comments | Total |
MMI | Resolute | 262 |
Soil samples | Resolute | 1019 |
Rock samples | Resolute | 118 |
Trenching | | |
No of trenches | BUMIGEB and BHP | 167 |
Inata (25 trenches) | Line metres (Inata only) | 3295 |
Samples | Inata only | 1674 |
Pits | Souma, Inata, Pali West- Resolute | 53 |
Samples | Souma, Inata, Pali West-Resolute | 122 |
Geophysics | | |
Aeromagnetic | Line spacing 200 m by 85 m height | |
VLF - EM/Max-Min | Belahouro permit area | |
VLF - Max Min | Inata area | |
Ground mag | Resolute | 3021.7 line km |
TEM | Resolute | 777.6 line km |
Surveying | Local grid - Four geodesic stations | No statistics |
| established | |
| Base lines detailed -Inata | 6.5 line km |
Mapping | Local prospect area mapped | 1600km2 |
Metallurgy | Leach test work on Inata and Souma | 420km2 |
| Gravity leach test work, Inata | |
Remote Sensing | Landsat TM and aerial photography | |
| acquired by BHP | |
| Landsat TM and SPOT Imagery | |
6.3 Historic Mineral Resource Estimates
In 2000, Resolute (West Africa) Ltd., on behalf of the joint venture, estimated the resources for the Inata deposits as shown in Figure 6-2. Inverse distance weighting was used with a top cut of 20g/t Au (Resolute 2000). Resolute reported their 2000 estimate as a combination of Indicated and Inferred Mineral Resource in accordance with the guidelines set out in the Joint Ore Reserves Committee of The Australasian Institute of Mining and Metallurgy, Australian Institute of Geoscientists and Minerals Council of Australia (JORC).
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 6-2 : Resolute Resource Estimate 2000
(Reported at a 1.0g/t Au Lower Cutoff Grade)
| | | Resource | Approximate | Vertical Depth |
Prospect | Tonnes | Grade Au g/t | Category (JORC) | Drill Pattern | Drilled |
Inata | 7,682,000 | 2.8 | Indicated | 50 by 20m | 80 to 150m |
Minfo | 604,000 | 2.1 | Inferred | 50 by 20m | 60 to 80m |
Based on a review of the available data, OreQuest subsequently reported the Resolute resource estimate applying the CNI 43 -101 criteria and this is shown in Figure 6-3.
Figure 6-3 : Ore Quest Resource Estimate December 2004
(Reported at a 1.0g/t Au Lower Cutoff Grade)
| OreQuest Reclassified Resource (to NI43-101 standards) |
Zone | Indicated Resources | Indicated Resources |
| tonnes | Au Grade (g/t) | tonnes | Au Grade (g/t) |
Inata North | 3,709,374 | 3.0 | 612,200 | 3.0 |
Inata Central | 2,042,850 | 2.9 | 144,500 | 2.3 |
Inata South | 956,650 | 2.3 | 216,300 | 2.3 |
Minfo | | | 604,000 | 2.1 |
Totals | 6,708,874 | 2.9 | 1,577,000 | 2.5 |
RSG Global has previously estimated and reported the Inata resource in May 2005 and classified the estimate in accordance with the CNI 43-101 criteria. This is summarised in Figure 6-4
Figure 6-4 : Summary Resource Statement Inata Reported at a 0.5g/t Au Lower Cutoff Grade
(RSG Global September 2005) Subdivided by CNI 43-101 Categories
Resource Category | Tonnes | Average Gold Grade (g/t Au) | Contained Gold (oz) |
Indicated | 13,647,000 | 1.8 | 800,500 |
Measured | 1,396,000 | 3.0 | 132,500 |
Measured & Indicated | 15,043,000 | 1.9 | 933,000 |
Inferred | 4,869,000 | 1.4 | 226,000 |
The low volume of measured resources was due to insufficient bulk density measurements. This issue is being addressed prior to the reserve statement.
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The current reserve, using a cut-off grade of 1 gramme per tonne, is estimated by RSG Global as follows:
Figure 6-5 : Summary Resource Statement Inata Reported at a 1.0g/t Au Lower Cutoff Grade
(RSG Global September 2005) Subdivided by CNI 43-101 Categories
Resource Category | Tonnes | Average Gold Grade (g/t Au) | Contained Gold (oz) |
Indicated | 9.027,000 | 2.4 | 689,000 |
Measured | 1,270,000 | 3.2 | 129,000 |
Measured & Indicated | 10,297,000 | 2.5 | 818,000 |
Inferred | 2,811,000 | 2.0 | 177,000 |
6.4 Historic Production
The historic production derived from the Belahouro artisanal workings is unknown. Artisan workings to the west and outside of the Inata Central resource visibly have small "manhole" shafts down 15 to 20m and represent an insignificant amount of material removed from any potential insitu resource at Inata.
The artisan workings at Inata are not extensive and have mostly been created by illegal miners. BHP and Resolute establish control over artisanal operations from late 1990's in order to restrict any activity over the known Inata resource areas. Goldbelt has and is continuing to enforce this control. The Inata area has also been and is currently protected by government regulations.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
7 GEOLOGICAL SETTING
7.1 Regional Geology
The Belahouro Project is located in the western portion of the Birimian Djibo Greenstone Belt. The belt has undergone regional lower greenschist metamorphism and is comprised of intermediate to mafic volcano-sedimentary successions and syn to post-kinematic granite and gabbro intrusions dispersed within sedimentary and tuffaceous schists. A prominent marker horizon consisting of black iron-bearing quartzite lenses is observed within the volcano-sedimentary succession. Further emplacement of dolerite and felsic-porphyry has also occurred during and after mineralizing events. Tarkwaian facies arkosic sandstone overlies the volcano-sedimentary sequence at the eastern border of the Belahouro granite.
The project can be separated into three principal geological domains. The Damba-Inata domain occurs in the westernmost portion of the project area. Central to the property is the Belahouro-Sona Basin, and the Feto Kole province occurs in the eastern region.
The Damba-Inata trend is dominated by metasediments and intermediate to mafic volcanics and volcanoclastics. To the west of the Inata trend, strong magnetic signatures are present in aeromagnetic data indicating the presence of mafic volcanics or sedimentary derivatives. The trend varies over the strike of the prospect, from north-northwest in the south to north in the central area and north-northeast in the northern area.
The Belahouro-Sona Basin consists of turburbitic metasediments and minor volcanoclastics and provides the key elements to comprehension of the regional tectonic framework subsequent to basin formation. The basin is bounded to the east, west and south by early basin forming structures (D1) that have later been reactivated in subsequent phases of compressional deformation (D2). Arcuate, generally south dipping thrusts abut the southern margin of the basin indicating a significant north-south compressional event (D3). Late mineralized (D4) 040o and 330o faults crosscut the entire basin and adjacent volcano-sedimentary terranes.
Feto Kole to the east of the Sona Basin, is a complex of felsic to mafic volcanics and sedimentary derivatives, and various pre-, syn- and post deformation granitoid intrusions. The final phase of intrusion is gabbroic, which is also associated with minor volcanic ultramafic sequences.
The basement geology of the Belahouro Gold Project represents part of the Baoulé-Mossi Domain of the West African Craton which is mainly formed by Birimian volcano-sedimentary series, which dominates the basement geology of the West African Shield. The Birimian Series is composed of volcanic and plutonic bodies (basalt, andesite, rhyolite, rhyodacite, dacite, felsic tuff, gabbro, diorite and ultramafic rocks) distributed within a generally schistose and vertically titled sedimentary and tuffaceous succession of black
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shale, sandstone, pelitic schists, tuffaceous schist, greywacke, quartzite and chert. This basement succession is overlain by Tarkwaian siliceous and arkosic sandstone and conglomerate.
The Birimian Series of West Africa is host to some of the largest gold deposits in the world, including Sadiola, Yatela, Morila and Syama in Mali, Obuasi, Bogosu, Prestea and Bibiani in Ghana, and Siguiri in Guinea.
7.2 Project Geology
The Birimian volcano-sedimentary series was extensively deformed and metamorphosed during the Eburnean Orogeny. Metamorphic mineral assemblages reflect low-grade regional metamorphism to greenschist facies. However, in the Belahouro-Souma area, kyanite bearing mica schist and pelite indicate higher grade metamorphic regime. The succession is strongly affected by polyphase deformation displaying recumbent folding and strong sub vertical dominant schistosity with transposed bedding plans in some areas. Syn to post-tectonic granitoids intrude the basement succession.
The entire stratigraphy has been intruded by massive post Birimian dolerite dykes and sills with higher magnetic susceptibility that makes them readily distinguishable in airborne magnetic data.
Throughout the Belahouro Project, exposures of the Birimian basement succession are rare. Weathering is extensive, persisting up to 100 metres depth with a typical lateritic profile.
The gross structure of the Belahouro Project relies on interpretation of the airborne magnetic data.
Gold mineralization is dominantly associated with stockwork and sheeted quartz-carbonate-sulphide veining, stockworks of albite-carbonate-sulphide veinlets, or as sulphidic haematitic breccia.
Pyrite is the dominant sulphide species, present as discrete poikilitic euhedra ranging from a fraction to a few millimetres in size, largely confined to vein margins or disseminated within alteration selvedges. Traces of other sulphides, principally chalcopyrite, galena, pyrrhotite, arsenopyrite, bornite, tennantite, linneite and mackinauwite are present as veins, fracture fillings and localized disseminations adjacent to veins. Gold is largely developed within fractures in pyrite grains, rarely larger than 50 microns, and is non-refractory.
Extensive weathering and lateritization of the mineralization and surrounding host rocks has occurred. The base of oxidation extends to over 60m in places, but may be locally depressed within zones of fracturing and brecciation. There appears to be little evidence of depletion and corresponding supergene enrichment within
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the weathering profile, and the width and grade of primary mineralized zones appears to be little different from their equivalents within the saprolite profile.
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8 DEPOSIT TYPES
Gold within the Belahouro Project is exclusively associated with mesothermal vein style mineralization, entirely consistent with the majority of Archaean and Proterozoic terrains worldwide, including the Birimian Series of West Africa. This style of mineralization is generally associated with regionally metamorphosed terrains that have experienced considerable deformation. As such, the deposits are invariably strongly structurally, rather than lithologically, controlled, however the dominance of structural control invariably increases in a manner commensurate with the metamorphic grade.
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9 MINERALIZATION
The principal gold mineralization within the Belahouro Project is confined to the Inata and Souma Trends The three Inata deposits (North, Central and South) are located over a strike length of 4km. The deposits are interpreted to be related to the same structural event and are associated with shearing. The Inata Central and Inata South represent the same mineralized trend, separated by lower grade mineralization and cross-cutting faults. Inata North lies some 300m west of the Inata Central-South trend. The Inata shear trends north-northeast and dips steeply to the west-northwest. Gold mineralization is present as free grains and is generally associated with carbonate-pyrite alteration within quartz veins.
Sayouba is a small zone (strike 100m) of north-northwest trending gold mineralization with a dip of 60° to 70° west. It occurs in shale, siltstone, minor intermediate volcanics, and felsic porphyry. The zone is transgressive to the regional foliation (030° to 040°).
Minfo lies on the Minfo-Filio east-west shear zone. The shear zone can be traced over a distance of 20km and is characterised by a wide zone of shearing (up to 400m) associated with a strong aeromagnetic trend. Mineralization is associated with massive and stringer quartz veining in black shales within an intermediate volcanic shale/siltstone package.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
10 EXPLORATION
Prior to commencement of the Goldbelt exploration programs (February 2004 onwards), considerable exploration has been completed by operators BHP and Resolute (Section 6.2).
The Goldbelt strategy was designed to define sufficient resources and reserves to justify investigation of the development of a 2Mtpa CIL processing operation producing approximately 150,000 oz to 200,000 oz of gold per year.
The programs focussed primarily on infill drilling of the project resources identified with the objective of improving the confidence category of the identified Mineral Resources. A secondary objective of the drilling program was to expand the resource base in order to enhance the mine life of a proposed CIL operation.
This strategy has been successful, with additional higher grade zones of oxide and primary mineralization defined. It is likely that on-going exploration will continue to identify extensions to existing mineralization or new mineralization elsewhere within the permit.
A summary of the principal exploration activities completed by Goldbelt to 30 September 2005 is provided in Figure 10-1 below. A detailed listing and discussion of the exploration history is provided as Section 6.2 and is therefore not repeated.
Figure 10-1 : Goldbelt Exploration Statistics (2004 to September 2005)
Exploration Activity | Exploration Statistics |
RC Drilling | 381 holes (78,618m) |
Diamond Drilling | 13 holes (3312m) |
Exploration surveys and interpretations completed to date within the Belahouro Gold Project have largely been planned, executed and supervised by national and expatriate Goldbelt personnel, supplemented by consultants and contractors for more specialised or technical roles. The data is considered to be of good quality (see Sections 11 to 14). The current Goldbelt exploration team, assisted by RSG Global technical personnel, is considered well qualified and motivated to fulfil the responsibilities of on-going exploration programs.
The geological understanding of the Belahouro Gold Project has evolved greatly since the commencement of the Goldbelt exploration strategy and will continue to do so at a similar rate. The knowledge acquired to date
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confirms the considerable potential of the Inata Trend and surrounding areas. RSG Global considers that the proposed exploration and development strategy is entirely appropriate and reflects the potential of the Belahouro Gold Project.
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11 DRILLING
The Inata database includes drilling data generated in three main periods, Bumigeb and BHP drilling (pre 1998), Resolute (1998 to 2004) and Goldbelt drilling from 2004 onwards. The drill data contained in the database is a combination of diamond and reverse circulation (RC) drilling.
Limited documentation is available adequately describing the Bumigeb and BHP drilling (pre 1998) with the description provided relating to the Resolute and Goldbelt data, which dominates the dataset used in the resource evaluation.
11.1 Reverse Circulation Drilling
Four types of drill rigs were utilised supplied by two drilling companies.
UDR650 (truck mounted) with 750cfm/350psi compressor. Rod string 4½ inch with 5½ inch face hammer. Supplied by West African Drilling Services (WADS).
UDR1000 (truck mounted) supplied by West African Drilling Services (WADS).
Schramm T66 truck mounted with 900cfm/350psi air capability using 5½ inch face hammer. Supplied by WADS.
Schramm 685 truck mounted with air capability of 900cfm/350psi. Drill string with 4½ inch face hammer. Supplied by Grimwood Davies.
The different drilling company's performance was reported as satisfactory with high daily productivity rates, acceptable sampling recovery (except shallow diamond coring), and safety standards being achieved.
11.2 Diamond Core Drilling
WADS completed diamond drilling for both Resolute and Goldbelt. RC precollars were drilled using a UDR1000 multipurpose rig with 350psi/900cfm capacity. Precollars were completed with a 5½ inch drill bit while diamond coring was completed using HQ triple tube. All holes were surveyed using a single shot camera at the collar and at regular down-hole intervals. Core orientations were completed using the spear technique, with both tungsten and crayon bits utilised, depending on core competency.
Core structure orientations are routinely recorded to assist in determining the controls on mineralization, in establishing a reliable geological model for resource estimation, and to provide additional geotechnical information to determine likely blast fragmentation and pit stability characteristics.
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The core is transferred from the trays and pieced together on a V-rail (angle iron) rack and the orientation line, determined from the crayon orientation mark recorded during drilling, drawn along the entire length of the assembled core.
Geotechnical logging has recorded percentage core recovery, RQD percentage, rock type, weathering, rock strength and fractures per metre. This basic geotechnical logging is considered appropriate at this stage of project development.
11.3 Drilling Quality
The RC and diamond drilling data applied in resource estimation is generally considered to be of acceptable quality and broadly consistent with international industry standards.
The general quality of RC drilling has progressively improved over time, particularly since more experienced and well-equipped contractors have become available. Drilling practices are also benefiting from closer and more experienced exploration management. The quality of diamond drilling is considered to be of industry accepted standard, however, recoveries for diamond core from the moderate to highly weathered saprolite has been poor (Section 12.3).
Wherever possible, drilling was undertaken normal to the plane of the principal mineralized orientation. RSG Global is confident that the modelled resources adequately reflect the drilling orientation with respect to the mineralized strike and down-hole versus true intersection width.
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12 SAMPLING METHODS AND APPROACH
12.1 RC Sampling and Logging
RC drill chips were collected as 1m intervals down-hole via a cyclone into PVC bags prior to splitting.
The collected samples were riffle split using either a multi stage Jones riffle splitter or via multiple passes through a single stage Jones riffle splitter. A final sample of approximately 2kg was collected for submission to the laboratory for analysis. Wet samples were collected via grab sampling. The dry sampling represents industry standard practices, but the method of grab sampling the wet RC samples may result in unreliable data, however, wet samples represent a small percentage of the dataset.
RC chip boards were systematically compiled by gluing the sieved RC chips to a board. These boards represent a good record and a useful tool for re interpretation of the geology and mineralization. During the site visit, holes INRC001 to INRC150 were available for inspection, although the remaining chip boards (300 plus holes) for Resolute drilling were not located. This drilling represents the bulk of the Inata Deposit and needs to be located and preserved. Chip trays were used by Goldbelt and were inspected in Ouagadougou.
12.2 Diamond Core Sampling and Logging
The sampling of the core was subject to the discretion of the geologist completing the geological logging. After the marking out of the required interval, the core was cut in half by the electric diamond blade core saw. The cut is made along the orientation line with the half core portion that looks north being retained as a reference. The half portion that looks to the south is broken up for assay.
In the upper oxide zone, the core was too friable for diamond saw cutting. The procedures were to dry cut or cleave the core in this case. The sample weight required was 2kg.
The following diamond holes were inspected during the site visit; INDD007, INDD008, INDD009, INDD016, INDD018, INDD019 and INDD020.
The zone of mineralization in holes INDD7 to INDD9 had been weakly weathered and the core was relatively competent. Fines along fractures and veining had been washed out but recoveries were above 90%. Holes INDD16, INDD18, INDD19 and INDD20 were moderately to strongly weathered, the core was crumbly and friable and sample recovery was very poor. Consequently, these holes are likely to underestimate the gold in grade and width when compared to adjacent RC.
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12.3 Sample Recovery
Sample recovery for RC drilling was noted as good and generally estimated to be in excess of 20kg per metre drilled. Sample weights have not been systematically recorded, however review of deteriorated samples in the bag farm at the Belahouro camp and at Inata indicates acceptable sample recoveries were being achieved. (Based on 5'' or 127.5mm diameter RC drillholes and the established average weighted bulk density, the notional volume recovery of dry samples should approximate 20kg/m in saprolite and 32kg/m in the primary zone). Resolute states that a few wet intervals were recorded, generally at rod changes. On inspection of RC drilling during the RSG Global site visit in April 2005, the samples were kept dry to depths of 200m. Drillers were pulling back after every metre and samples were being systematically weighted with very good recoveries noted.
Sample recovery in diamond holes was poor for the moderate to highly weathered zones. Core loss tends to occur due to washing and/or grinding at the commencement and completion of drilling runs, particularly within the partially oxidised portion of the profile or within friable zones of tectonised rock. Consequently, this drilling is considered as low confidence and recovery has been appropriately considered during estimation.
12.4 Sample Quality
The sampling procedures adopted for drilling are consistent with current industry best practise. Samples afforded by diamond coring within the highly weathered zones are of poor quality, however the sample recoveries for the RC drilling is high.
RC field duplicate samples are routinely collected to allow assessment of the field sampling error (or bias) once the laboratory error, determined from analysis of pulp duplicates, has been subtracted. Acceptable reproducibility has been identified during an assessment of RC field duplicate data (Section 14.2) generated and no distinct bias is evident. RC sampling still requires close supervision to ensure adequate representivity.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
13 SAMPLE PREPARATION, ANALYSIS AND SECURITY
13.1 Sample Security
RSG Global is unable to provide comment on the sample security of the data collected prior to Goldbelt's involvement, however, the sampling and sample dispatch protocols implemented by the Resolute-BHP JV, and subsequently by Resolute, are similar to those described below.
The rapid submission of samples from drilling for analysis, and the close scrutiny of procedures by expatriate technical staff, provides little opportunity for sample tampering. Equally, given the umpire assaying via an external international laboratory and the regular 'blind' submission of international standards to both the primary and umpire assay facilities, any misleading analytical data would be readily recognised and investigated.
Current Goldbelt drilling procedures require samples to be stapled closed once taken from the rig. They are then transported to the Belahouro secure camp to be picked up by the laboratory truck. The laboratory truck then takes them to the laboratory directly.
Reference material is retained and stored on site, including chips derived from RC drilling, half-core and photographs generated by diamond drilling, and duplicate pulps and residues of all submitted samples. All pulps are stored at a Goldbelt storage facility in Ouagadougou and were inspected during the site visit. Assessment of the data indicates that the assay results are generally consistent with the logged alteration and mineralization, and are entirely consistent with the historical and anticipated tenor of mineralization.
13.2 Analytical Laboratories
Prior to BHP/Resolute involvement with the project, all sample analyses were completed at the Bumigeb laboratory in Bobo-Dioulasso. This laboratory represents data associated with 0.03% of the database.
Data collected by BHP represents approximately 21% of the database and was assayed at SGS in Tarkwa. Digital quality control data is not available and data has been reviewed from reports.
Quality control by Resolute identified that the Bumigeb laboratory was unreliable, therefore all Resolute samples were assayed at Intertek Testing Service (ITS) laboratory based in Ouagadougou, Burkina Faso. Data analyses by ITS represents data associated with approximately 46% of the assay database.
Analytical work completed on behalf of Goldbelt was initially done by Transworld Laboratory in Tarkwa, Ghana. After identifying some issues with sample preparation with the Transworld Laboratory, all sample
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preparation and analysis for the current drill program (post May 2005) is being completed by SGS Tarkwa in Ghana. Both of these laboratories use conventional fire assay with AAS finish. Goldbelt has continued using Resolute standard procedures for quality control. Transworld represents data associated with approximately 33% of the database.
13.3 Sample Preparation and Analysis Methods
13.3.1 Intertek Testing Service (ITS)
The assay method applied by ITS is summarised below.
SamplePreparation
2kg or less of sample is dried, disaggregated, crushed, and pulverised (95% passing -200 micron).
Two 180g pulps are taken for analysis and pulp storage.
SampleAnalysis
30g charge, Fire Assay fusion, lead collection, AAS determination to 8ppb.
Gravimetric analysis completed on Au>10g/t.
Routine quality control included submission and assay of two international standards, one international blank and two duplicates per batch of 30 samples. In addition, random checks were completed on spurious results. Sample preparation and analytical methods have been conventional and appropriate.
13.3.2 Transworld - Tarkwa
The assay method applied by Transworld (Tarkwa) was as follows:-
2kg to 3kg field splits are oven dried at 105°C.
Over dried samples are crushed in a jaw crusher to a nominal 3mm.
A 1.5kg sub-sample is collected via a riffle splitter.
The 1.5kg sub-sample pulverised in a homogenizing mill (LM2) to 90% -75µ.
The 50g Fire Assay analytical procedure applied to the pulps is summarised as follows:-
A 50g portion of pulverized sample is weighed.
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The sample is fused in a fusion furnace to produce a lead button.
A lead button is cupelled in a cupellation furnace.
The resulting prill is subjected to acid dissolution.
The resulting solutions are then read on an AAS, with a stated detection limit of 10ppb gold.
13.3.3 SGS Tarkwa
The current drill program, post May 2005 (and previously BHP samples with an undocumented procedure) is being analysed by SGS Tarkwa with the following procedure:-
2kg to 3kg field splits are oven dried at 105°C.
The dried sample is crushed in a Jaw crusher to a nominal 3mm.
A 1.5kg sub-sample is collected via a riffle splitter.
The 1.5kg sub-sample is pulverised in a homogenizing mill (LM2) to 90% -75µm.
The 50g Fire Assay analytical procedure applied to the pulps is summarised as follows:-
A 50g portion of pulverized sample is weighed.
The sub-sample is fused in a fusion furnace to produce a lead button.
A lead button is cupelled in a cupellation furnace.
The resulting prill is subjected to acid dissolution.
The resulting solutions are then read on an AAS, with a stated detection limit of 10ppb gold.
13.4 Adequacy of Procedures
Analytical procedures associated with data generated prior to BHP cannot be assessed, as not all of the relevant information is available. Procedures associated with BHP, Resolute and Goldbelt assaying are consistent with current industry practise and are considered acceptable for style of mineralization identified at Belahouro.
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14 DATA VERIFICATION
14.1 Quality Control Procedures
The current quality control procedures include the submission of internationally recognised standards, umpire assaying at an internationally recognised laboratories in Australia (5% of total mineralized intercepts are planned to be submitted at the completion of the current drill program in July 2005), duplicate and replicate sample analyses and the submission of RC field duplicate samples at a rate of 1:30, with the latter providing a comparison of the total sampling and analytical error. The assay quality control procedures applying to the various laboratories is summarised in the following sections.
14.1.1 Intertek Testing Services (ITS)
The quality control procedures implemented by ITS assaying were:-
Cross referencing of sample identifiers (sample tags) during sample sorting and preparation with sample sheets and client submission sheet.
Compressed air gun used to clean crushing and milling equipment between samples.
Barren quartz 'wash' applied to the milling/pulverising equipment at the rate of 1:10.
Quartz washes assayed to determine the level of cross contamination.
Sieve tests are carried out on pulps at the rate of 1:50 to ensure adequate size reduction.
Assaying of internal standards data.
Mineralized duplicate pulps despatched to Genalysis Laboratory Services in Perth, Australia, for umpire fire assay analysis.
14.1.2 Transworld (Tarkwa) and SGS (Tarkwa)
In addition to the above procedures applied at ITS, the following procedures were adopted for Transworld and SGS:-
A minimum of 3% (1:30) of the submitted samples in each batch, are duplicated in the field.
Blank samples are inserted at the rate of approximately 1:30.
Screen tests are undertaken on sample pulps at the rate of 1:20.
Industry recognised solid standards (Rocklabs) are disguised and inserted at a rate of 1:30.
Assaying of internal standards data.
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Mineralized duplicate pulps (representing 5% of the mineralized intercepts) are to be despatched for umpire fire assay analysis.
Pills inserted in barren 2kg samples are included in sample batches. The insertion rate is approximately 1:40. The pills were sourced from Assay Solutions Pty. Ltd, Australia.
14.2 Quality Control Analysis
The assay quality control data, as they pertain to resource estimates completed on the basis of data available to 31 August 2005, have been subdivided into pre BHP data, BHP data, BHP/Resolute- Resolute data and Goldbelt data.
The quality control data has been assessed statistically using a number of comparative analyses for available datasets. The objectives of these analyses were to determine relative precision and accuracy levels between various sets of assay pairs and the quantum of relative error. The results of the statistical analyses are presented as summary plots, which include the following:-
Thompson and Howarth Plot showing the mean relative percentage error of grouped assay pairs across the entire grade range, used to visualise precision levels by comparing against given control lines.
Rank % HARD Plot, which ranks all assay pairs in terms of precision levels measured as half of the absolute relative difference from the mean of the assay pairs (% HARD), used to visualise relative precision levels and to determine the percentage of the assay pairs population occurring at a certain precision level.
Mean vs % HARD Plot, used as another way of illustrating relative precision levels by showing the range of % HARD over the grade range.
Mean vs %HRD Plot is similar to the above, but the sign is retained, thus allowing negative or positive differences to be computed. This plot gives an overall impression of precision and also shows whether or not there is significant bias between the assay pairs by illustrating the mean percent half relative difference between the assay pairs (mean % HRD).
Correlation Plot is a simple plot of the value of assay 1 against assay 2. This plot allows an overall visualization of precision and bias over selected grade ranges. Correlation coefficients are also used.
Quantile-Quantile (Q-Q) Plot is a means where the marginal distributions of two datasets can be compared. Similar distributions should be noted if the data is unbiased.
Standard Control Plot shows the assay results of a particular reference standard over time. The results can be compared to the expected value, and the ±10% precision lines are also plotted, providing a good indication of both precision and accuracy over time.
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Cumulative Deviation from Mean Plots illustrate the cumulative sum of the deviation from the expected value of a particular reference standard or from the mean of the assays over time, and is used to determine direction and severity of bias and illustrate changes in grade over time.
Cumulative Deviation from Expect Value Plot illustrates the cumulative sum of the deviation from the expected value of a particular reference standard over time. Used to determine direction and severity of bias, and to illustrate changes in grade over time.
Comments on the results of the statistical analyses for each laboratory are provided below while a compilation of the descriptive statistics and graphical plots are presented as illustrations.
14.2.1 Pre BHP
Little quality control data exists for the assaying competed pre BHP. No quantitative assessment can be made in relation to the quality of this data however the data accounts for only 0.03% of the database.
As little quality control data exists for the assaying competed by BHP, no quantitative assessment can be made in relation to the quality of this data.
14.2.2 Resolute/BHP-Resolute (ITS)
Quality control data has been evaluated in the internal report 'Interim Report December 31 1998 by Resolute'. A total of 583 pulps were submitted to Genalysis Laboratory Services in Perth, Western Australia, as part of routine off-continent analysis. A high correlation was noted between data sets indicating no bias in the original assay data set.
Routine quality control included two international standards, one international blank and two duplicates per batch of 30 samples. In addition, random checks were completed on spurious results. Sample preparation and analytical methods have been conventional and appropriate.
Data was reviewed by RSG Global in the form of reports for the QA/QC completed by Resolute. The available data indicates that acceptable levels of accuracy and precision were being achieved in assaying for these datasets. The pulps remain intact and were inspected during the site visit at the Goldbelt storage facility in Ouagadougou, affording the possibility of selective reassay if deemed necessary. Based on a visual review of the different drillhole datasets, no apparent change in assay quantum was identified.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
14.2.3 Goldbelt (Transworld - Tarkwa)
The exploration samples generated by Goldbelt to May 2005 have been assayed at the Transworld laboratory in Tarkwa.
Digital QC data has been supplied to RSG Global for review. Field duplicate data, international standards, blanks and pill data has been reviewed.
Pill data supplied showed extreme discrepancies. After consultation with the laboratory it was determined that during sample preparation, operators saw the pills as contaminants and removed them from the sample. The later analysis conducted when operators stopped the practice of removing the pills shows that samples were generally being correctly crushed, homogenised and splits were representative of the crushed sample. Plots are supplied for the 3 pills utilised (0.58g/t, 2.25g/t and 7.98g/t as Figures 31-7 to 31-9 respectively).
Note that pills are a form of standard that when sample weights are available metal can be calculated.. The mean of the assay pill data, as shown in all QC plots (Figures 31-7 to 31-9), reports under the expected value. This under reporting is interpreted to be principally due to the identified removal of the pills. Goldbelt elected to discontinue to use TWL and to switch to SGS Tarkwa for its assaying.
Field duplicate data is available for 644 samples. Figures 31-1, 31-2 & 31-10, 31-11 show results for the total data and a dataset generated excluding <0.1g/t Au data respectively. The results show acceptable levels of precision, with 88% of the 0.1g/t Au data within the 20% HARD tolerance limits and a linear correlation of 0.98.
Analyses of blanks were available to review the data for possible contamination. The blanks database comprised 642 data. Little contamination was evident (Figure 31-3 & 31-12), with the 55% of data lying at or within twice the detection limit of 0.005g/t Au. Minor spikes are seen in the data with some clustering of higher background values apparent.
The quality control data suite investigated for the 2005 drilling comprises 37 assays of independently submitted standards. The submitted standards were sourced from Rocklab Ltd who specialise in producing international accredited standards.
RSG Global completed a review of the following Rocklab standards:-
Standard 0.42 (expected value 0.42g/t) - Figures 31-4 & 31-13
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Standard 1.30 (expected value 1.30g/t) - Figures 31-5 & 31-14
Standard 3.46 (expected value 3.46g/t) - Figures 31-6 & 31-15
The data analysis revealed some notable bias with standard 0.42, 1.30 and 3.46 reporting only 54%, 69% and 77% respectively of standards within 10% tolerance limits. The limited nature of the dataset however should be appropriately considered. Some anomalies were identified which appear to reflect incorrect labelling of the standards, in particular the 0.42g/t standard, and hence indicate that supervision of this aspect of the sample submission may have been inadequate. Goldbelt has elected to discontinue to use TWL and to switch to SGS Tarkwa for its assaying.
In general, and notwithstanding the above identified and rectified sample preparation error with the pills, the Transworld laboratories have achieved acceptable levels of precision. Based on the available standards assaying, insufficient data is available to assess the assay accuracy fully, although RSG Global believes no systematic bias exists.
Umpire assaying is currently being completed in which 5% of the mineralized intercepts are re-analysed by off continent laboratorie Amdel in Perth, Australia. This is strongly recommended for a final review and will help data quality assessments.
14.2.4 Goldbelt (SGS - Tarkwa)
The current exploration samples generated by Goldbelt since May 2005 have been assayed at the SGS laboratory in Tarkwa. Field duplicate data, international standards, blanks and pill data has been reviewed. Close monitoring of the QC data was conducted by Goldbelt and RSG Global personnel on a batch by batch basis during the current drill program with any irregularities immediately investigated and if warranted samples being re assayed.
Pill data is available for 331 samples. Data shows that samples were generally being appropriately crushed and homogenised, with splits representative of the crushed sample. Plots are supplied for the 5 pills utilised (HOME25 - 0.01g/t Au, HOME10 - 0.02g/t Au, HOME13 - 0.29g/t Au, PAD22 - 1.13g/t Au and SOG9 - 3.99g/t Au as Figures 31-7 to 31-11 respectively). The lower grade pills 0.01g/t and 0.02g/t have been treated effectively as blanks with results generally within tolerance (96% and 75% respectively). The low grade data must be treated with caution as the 2kg blank material to which the pill is added maybe weakly mineralized and the pill grade is also near assay detection. Plots show that where the pill has been captured within the sample preparation, results are generally acceptable. Continued review of the SGS laboratory sample
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preparation is required as approximately 20% of the higher grade pills (PAD22 and SOG9) have not been captured in sample preparation, possibly due to the pill being removed by sample preparation staff as a contaminant or excess sample being removed along with the pill before initial crushing. Where the pill has been captured results are considered acceptable. Further review of sample preparation based on the laboratory duplicates also reveals no issue with the sample preparation.
Field duplicate data is available for 1081 samples. Figures 31-11 show results for the dataset generated excluding <0.1g/t Au data. The results show acceptable levels of precision, with 87% of the 0.1g/t Au data within the 20% HARD tolerance limits and a linear correlation of 0.96.
The blanks database comprised 644 data. Little contamination was evident (Figure 31-12), with the 93% of data lying within 0.1g/t Au. Minor spikes are seen in the data with some clustering of higher background values apparent.
The 2005 SGS Tarkwa quality control data set includes 899 assays of independently submitted standards. The submitted standards were sourced from Rocklab Ltd who specialise in producing international accredited standards.
RSG Global completed a review of the following Rocklab standards:-
Standard OXA26(expected value 0.08g/t) | 195 samples | Figure 31-13. |
Standard OXC30(expected value 0.20g/t) | 87 samples | Figure 31-14. |
Standard OX9 (expected value 0.47g/t) | 49 samples | Figure 31-15. |
StandardOXF28 (expectedvalue 0.80g/t) | 90 samples | Figure 31-17. |
Standard OXL14 (expected value 1.22g/t) | 14 samples | Figure 31-18. |
Standard OXL40 (expected value 1.86g/t) | 195 samples | Figure 31-19. |
Standard OXL25 (expected value 5.85g/t) | 48 samples | Figure 31-20. |
Standard SN16 (expected value 8.37g/t) | 201 samples | Figure 31-21. |
The data analysis of the lower grade standards show excellent reproducibility of standard OXA26, 98% of data falling within the +/- 0.04g/t tolerance. Standard OXC30 also shows acceptable reproducibility with 94%(bias 12%) of data falling within the +/-0.05g/t tolerance as does standard OX9 with 88%(bias 13%) of data falling within the +/- 0.07g/t tolerance. Apparent large bias is related to the low order of magnitude of the datset and is not considered of concern.
Analysis of standards in the range above the reported cutoff of 0.5g/t and less than 5g/t reveal excellent accuracy was achieved by SGS Tarkwa, with Standard OXF28, OXL14 and OXL40 reporting 99%(bias 4%),
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
78%(bias -8%) and 91%(bias 2%) of data respectively within 10% tolerance limits. The relatively low 78% of data within tolerance of standard OXL 14 is a function of the limited dataset consisting of 14 samples and thus the large relative bias is not considered significant.
Review of the standards OXL25 and SN16, which represent the higher grade range of assaying, reports 96%, and 91% respectively within 10% tolerance limits, and a bias of -0.1 and 2.11% respectively. It appears that some mislabelling of standard SN16 with standard OXL40 has occurred in sample dispatch. Removing these mislabelled standards improved the accuracy with the relative standard deviation reduced from 1.24 to 0.48 and a reduction in reported bias to an acceptable 0.3%.
Goldbelts decision to use SGS Tarkwa for its assaying appears well justified when the quality of the standards data is considered. In conclusion the SGS laboratories have achieved acceptable levels of precision and accuracy. Based on the current data set, RSG Global believes no systematic bias exists.
Umpire assaying at the completion of the drill program in which 5% of the mineralized intercepts are re-analysed by off continent laboratories (Amdel Perth, Western Australia) is currently being conducted. This is to enable a final review and will assist in data quality assessments.
14.2.5 Analytical Data Quality Summary
Detailed quality control assessment of the analytical data generated has not identified any material bias. The analytical precision for both assay standards and field duplicate data is acceptable. The quality of the analytical data applied in resource estimation is generally considered consistent with industry standards. As part of normal exploration practises, ongoing review of all quality control data, including independent umpire assaying and independent submission of internationally accredited standards, is strongly recommended.
14.3 Bulk Density Determinations
RSG Global has generated resource estimates for the Inata deposit within the Belahouro Gold Project as at 30th of September 2005 using the MIK estimation technique. The technique selection was based on a combination of factors including the quantity and spacing of available data, the interpreted controls on mineralization, and the style of mineralization.
The resource model was derived via geological and mineralization zone modelling of the individual deposits. This is discussed in more detail in section 17.
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
14.4 Survey Control
14.4.1 Topography
Topography has been generated from the drill hole collar survey data. RSG Global considers the topography to be of moderate confidence considering the limited relief of the Inata deposits. A more extensive topographic survey is recommended for detailed mine planning.
14.4.2 Collar Surveys
In 1998, when Resolute took over exploration management at the Belahouro Project, a detailed surveying program was completed over the entire project. BAGEME/IGB, a Burkina Faso government survey agency, was employed to complete the survey. Baselines of the local grids were accurately surveyed and geodetic stations were established in UTM WGS 84 datum.
Drill holes have been accurately surveyed using standard theodolite techniques based on the geodetic stations. Subsequent drilling by Resolute has been picked up by a differential GPS unit to survey drill hole collars to an accuracy of ±1 metre.
RSG Global has independently checked nine drill hole collars using a hand held GPS (6m accuracy), randomly selected from the South Inata, Central Inata, North Inata and Minfo deposits and the Sayouba prospect. The check survey is comparable to the provided database collar survey.
All recent Goldbelt drilling has been resurveyed by DGPS and the data are incorporated into the exploration survey file. All drillhole collars are marked with a concrete slab for future reference.
14.4.3 Down-hole Surveys
BHP-Resolute drilling diamond drilling was downhole surveyed by an unstated method at regular downhole intervals. The RC holes were unsurveyed. However, the limited depth of these holes would result in little substantial deviation and therefore the lack of survey is not considered material.
For the current Golbelt drill program, down-hole surveys are undertaken by the drilling contractor under the supervision of Goldbelt personnel prior to the completion of each hole. All down hole surveys were completed using an Eastman single shot camera at the collar and at regular down-hole intervals. All azimuth
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readings taken by the camera are magnetic. No survey shots were validated during the site visit due to the site personnel being unable to locate the survey discs.
In the case of RC holes, surveys are undertaken at nominal 30m to 50m intervals in the open hole after drilling is completed. The drillholes remain very open due to the lack of ground water (up to 200m in depth) and are easily surveyed open hole with minor risk of hole blockage or loss of camera. Each survey result is checked onsite before being entered into the survey file and is re-surveyed if a discrepancy between the planned and determined orientation is evident. Typical deviation is less than 7º in both dip and azimuth for drillholes of up to 200m depth.
The azimuth and dip can be readily determined through the bottom of the bit for diamond core holes. This information is also determined at nominal 30m to 50m intervals down-hole and recorded in the database in a similar fashion to the RC drilling.
Once the set-up orientation of the rigs is defined, little deviation is evident in either the RC or diamond drilling and the spatial distribution of data is considered to be well controlled.
14.5 Data Quality Summary
On the basis of the 2005 RSG Global technical audit and site visits, and data provided subsequently by Goldbelt technical staff, the appropriateness of the exploration procedures relating to resource delineation can be summarised as follows:-
Diamond and RC drilling have been undertaken by reputable contract drilling companies using industry standard drilling equipment and procedures.
Survey control for the majority of projects is accomplished by surveying of drillhole collars using a DGPS. Drill hole locations are well established in relation local and UTM grids.
Drill hole sampling procedures are consistent with acceptable industry standards.
Assaying procedures are considered consistent with acceptable industry standards.
Review of the pills data indicates that a high level of error is present in sample preparation where pills were removed, however no bias has been identified in samples assayed including the pills. Review of the field duplicate data indicates that an acceptable level of precision is achieved indicating total error is also acceptable. No bias has been identified in this data set.
Assaying completed by ITS and Transworld displays acceptable levels of accuracy and precision.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Density stratification based on diamond core data is considered acceptable for resource calculation however more data is required for improved and possibly a higher tonnage calculation.
14.6 Source Data
Goldbelt staff supplied digital and hard copy data for the Belahouro Project. In summary, the following key digital data relevant to the resource estimation study were provided:-
Drill hole databases containing collar location data, down hole survey data, assay data, and geology data.
Internal documentation including geological logging tables.
QAQC databases.
Density databases.
In addition, reference data and support documentation relevant to the resource estimation study were supplied as numerous internal company reports.
14.7 Drillhole Database
RSG Global was supplied with a series of binary and ASCII databases from site. These data were loaded into the Micromine software package and reviewed in detail as part of the resource estimation process. The database investigations undertaken by RSG Global included:-
A review for completeness (hole exists in assay, collar, survey and geology files).
Validation for duplicated sample numbers.
Validation of azimuth and dip ranges.
A review of assay results for consistency of recording, flagging, detection limit, and unit.
Compilation and validation of missing intervals.
Review of high-grade assay intervals.
Validation of geology codes.
3D coordinate generation and review.
In addition to the above, a validation of primary assays against the original assay certificates was undertaken. At least one hole per section line was compared against the digital database. This represented approximately 30% of the database. A small number of inconsistencies were identified during the database validation, requiring adjustment or correction prior to resource estimation, including:-
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Incorrect and incomplete downhole survey data.
Missing assays from intervals known to have been assayed.
Typographical errors.
Inconsistencies in the geological coding due to multiple phases of exploration, and variations in geology codes and logging personnel.
The databases are considered to be of acceptable industry standards. Summary details of the validated database grouped by drill type are provided in Figure 14-1.
Figure 14-1 : Summary of Drilling Database Statistics Grouped by Drill Type
Description | DDH | RC | Total |
Holes | 24 | 913 | 937 |
Metres | 3,311.9 | 78,618.5 | 81,930.4 |
Summary details of the drilling completed grouped by company are provided in Figure 14-2.
Figure 14-2 : Summary of Drilling Database Statistics Grouped by Company
Company | Description | DDH | RC | Total |
Pre BHP | Holes | 4 | 0 | 4 |
Metres | 200.9 | 0 | 200.9 |
BHP | Holes | 6 | 156 | 162 |
Metres | 1,069.5 | 12,006.5 | 13,076 |
BHP Resolute | Holes | 0 | 309 | 309 |
Metres | 0 | 21,445 | 21,445 |
Resolute | Holes | 11 | 66 | 77 |
Metres | 1,750.5 | 4,407 | 6,157.5 |
Goldbelt | Holes | 3 | 381 | 384 |
Metres | 290.9 | 40,760 | 41,050.9 |
Summary details of the drilling completed grouped by assay laboratory are provided in Figure 14-3.
Figure 14-3 : Summary of Drilling Database Statistics Grouped by Laboratory
Company | Description | DDH | RC | Total |
Burnigeb | Holes | 4 | 0 | 4 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
Company | Description | DDH | RC | Total |
| Metres | 200.9 | 0 | 200.9 |
SGS (BHP Tarkwa) | Holes | 6 | 156 | 162 |
Metres | 1069.5 | 12,006.5 | 13,076 |
ITS | Holes | 11 | 375 | 386 |
Metres | 1750.5 | 25,852 | 27,602.5 |
Transworld | Holes | 3 | 198 | 201 |
Metres | 290.9 | 19,934 | 20224.9 |
SGS (Tarkwa) | Holes | 0 | 183 | 183 |
Metres | 0 | 20,576 | 20,576 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
15 ADJACENT PROPERTIES
The permit immediately to the North of the Belahouro Permit is owned by Orezone Resources (OZN:TSX, Amex), a Canadian gold exploration and development company that acquired the 404 km2 Ouairé Kerboulé exploration permit, in April 1997 and now holds a 75% interest in the permit with an option to earn an additional 25% interest. Orezone Resources are actively exploring the permit having spent over $1 million on exploration to date and have identified significant mineralization at Kerboulé approximately 25 kilometers to the North-North East of Inata.
Orezone Resources suggests that mineralization at Kerboulé lies in the same structural corridor to that of the Inata deposit and that mineralization also occurs in a similar shear zone and geological setting containing the same volcano-sedimentary and volcaniclastic rocks. The global Inferred resource quoted by Orezone Resources (as September 2005) at Kerboulé is currently 4.8 million tonnes at 1.3g/t Au (200,000 ounces). Orezone Resources believe that the economic feasibility of the Kerboulé project is currently related to the advancement of the Inata Deposit. The next phase exploration program on the Ouairé Kerboulé permit, according to Orezone, will focus on defining large scale mineralization that has the potential of hosting a multi-million ounce deposit.
RSG Global considers that there are no other mineral deposits associated with adjacent projects that are directly relevant to the Belahouro Project.
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16 MINERAL PROCESSING AND METALLURGICAL TESTING
In 1999, four composite samples of Inata material were tested by AMMTEC of Australia. The samples were crushed to minus 2mm prior to splitting into both 1kg mill charges and 200g assay samples. Duplicate head assays compared well, with less than 5% variation between assays. Samples were ground to 80% passing either 106 or 75 microns. Gravity recovery was tested using a small Knelson concentrator after grinding followed by amalgamation. All gravity and amalgam tailing was then subject to cyanide leaching. The results are summarized in Figure 16-1.
Figure 16-1 : Gravity Cyanaidation Test Results on Inata Composites
| | Grind | | | | Reagent |
Comp. | | 80% | Calc'd | Leach | Gold Extraction % with time | Consumption |
Sample | Description | passing | Head Au | Residue | Hrs. | kg/t |
No. | | microns | g/t | Au g/t | Gravity | 2 | 8 | 24 | Lime | NaCn |
| L. G.ox. | 106 | 1.49 | 0.083 | 16.2 | 84.4 | 94.5 | 94.5 | 1.17 | 0.83 |
T128827 | | | | | | | | | | |
| (0-16m) | 75 | 1.41 | 0.082 | 11.3 | 77.2 | 92.1 | 94.2 | 1.66 | 0.53 |
| H.G. Ox. | 106 | 8 | 0.322 | 14.9 | 91.4 | 95.2 | 96 | 1.37 | 0.78 |
T128828 | | | | | | | | | | |
| (6-65m) | 75 | 8.3 | 0.341 | 13.9 | 80.4 | 94.5 | 95.9 | 1.36 | 1.08 |
| L. G. ox./Tr. | 106 | 1.6 | 0.311 | 13.6 | 80.6 | 80.6 | 80.6 | 3.7 | 0.68 |
T128829 | | | | | | | | | | |
| (68-91m) | 75 | 1.38 | 0.382 | 8.8 | 82.5 | 84.7 | 86.8 | 2.52 | 0.75 |
| H.G. Ox./Tr. | 106 | 7.8 | 1.21 | 16.8 | 80.9 | 83.6 | 84.4 | 2.74 | 1.08 |
T128830 | | | | | | | | | | |
| (61-90) | 75 | 7 | 1.25 | 10.4 | 80 | 82.1 | 82.1 | 3.28 | 0.75 |
The tests indicate that the material is not particularly grind sensitive below 100 microns. Ninety percent recoveries were achieved in oxide samples similar to results obtained from 24 bottle roll tests at ITS laboratory in Ouagadougou. Due to the relatively low recoveries in transition samples, oxygen sparging tests were performed on the T128829 106 micron sample. Aeration improved overall recovery to 90% within two hours with slightly lower lime consumption.
Test work was also done by AMMTEC regarding potential preg-robbing carbon thought to be present in some of the host rocks. Samples of core from hole INRD 09 were shipped to Australia for the tests. The samples were from carbonaceous shale at 143m depth and andesite at 181m. The mineralized zone averaged 1.35g/t Au from 151m to 164m and 6.15g/t Au from 164m to 172m. The andesite contained mainly carbonate carbon, however, the shale sample was found to be extremely preg-robbing removing 90% of the solution gold within one hour.
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
CIL tests were run on Inata North and Central deposit composites. Samples were ground to 80% passing 106 microns and again gravity concentrates (11% to 25% recovery) were removed prior to leaching. Oxide recoveries of 91% and 92% were achieved and transition zone recoveries were lower at 81% to 86%. Some recovery of gold was made in all cases after one day of leaching, much slower dissolution rate than previous tests and attributed to the grind size.
Samples of oxide and transition material were used to calculate the bond work index of the material. The results by AMMTEC indicated work indices of 16 for oxide material and 11 to 13 for transition material. The index of 16 reported by AMMTEC is quite high and further work is warranted to verify this number and determine the reason for it. In their various reports AMMTEC recommend that further studies are warranted to determine minor element (such as copper) effects on leaching which could be done by ICP analysis of assay samples.
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
17 MINERAL RESOURCE AND MINERAL RESERVE ESTIMATES
No reserves have been estimated at this stage of the study
17.1 Introduction
RSG Global has generated resource estimates for the Inata deposit within the Belahouro Gold Project as at 30th of September 2005 using the MIK estimation technique. The technique selection was based on a combination of factors including the quantity and spacing of available data, the interpreted controls on mineralization, and the style of mineralization.
The resource model was derived via geological and mineralization zone modelling of the individual deposits.
17.2 Database
The resource estimation was based on the updated exploration database which comprised a series of binary and ASCII files. These files were reviewed and validated by RSG Global prior to commencing the resource estimation study.
No topographic data was supplied and, as such, a topographic surface has been generated from drill hole collar co-ordinates. No depletion of the model has been undertaken for the artisanal workings due to the lack of robust topographic information and digital data pertaining to the workings. The Inata artisan workings viewed during the RSG Global site visit are small scale and are considered insignificant in respects to resource depletion.
17.3 Geological Modelling and Mineralized Zone Interpretation
Surfaces were generated for the regolith/oxidation (logged weathering) and used to code the drill hole database, the block model and bulk density stratification. The regolith/oxidation surfaces represent the base of the oxide and base of the transitional zones. Figure 31-23 provides a typical cross section.
Site based personnel have also provided basic geological wire frames representing broad lithological boundaries modelled. Further lithological modelling by site personnel should focus on refining the lithological boundaries and identify the lithological units that may impact upon processing of the ore. While lithology is not dependant upon defining the mineralization extents of the deposit, defining lithological units
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such as hydroscopic clays and carbonaceous shales can assist in defining and understanding the metallurgical characteristics of the deposit.
A mineralization interpretation was completed based on the geological review and site visit completed by RSG Global. The interpretation captured the broad mineralization halo that encompasses the geological vein system.
The parameters applied to mineralization zone definition were as follows:-
A notional 0.3g/t Au lower cutoff.
A minimum horizontal thickness of 3m.
Consistency with the available geological interpretation.
Applying the notional 0.3g/t Au lower cutoff grade and geology criteria, 7 major mineralization domains (termed domains 110,120,130,140 (Inata North), 210, 220 (Inata Central) and 310 (Inata South)) were defined at the Inata deposit. Note that domain 140 in Inata North represents a high grade zone generated at > 5g/t Au which is entirely encompassed by domain 110. Two broad domains (termed domain 510 and 520) were defined to constrain the remaining background mineralization where the continuity of mineralization was difficult to establish. The mineralized domains were used to code both the drillhole database and block model.
Figures 31-24 to 31-27 present plan views of the drilling and the mineralization interpretation for all domains, with typical a cross section provided as Figures 31-28 to 31-30. Note the presented figures show the down dip extensions of the mineralization wireframes used to extrapolate the grade estimate for pit optimization purposes. The regions of domain extension were excluded from the resource reporting.
17.4 Statistical Analysis
The drill hole database was composited to a 2m down-hole composite interval, recording the coded geological data. The 2m composites were used for subsequent statistical, geostatistical and grade estimation investigations.
Classical statistics were generated for all domains (Figure 17-1). A high grade of 117.0g/t and 210.3g/t was noted for Domain 210 and 310 respectively. The grade distributions are typical of gold deposit of this style, and show a positive skew or near lognormal behaviour. The coefficient of variations (CV - calculated by
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dividing the standard deviation by the mean grade) are high (generally above 1) consistent with the presence of extreme grade composites that potentially require high grade cutting for grade estimation.
Figure 17-1 : Summary Statistics by Grouped Domain (2m Composites Uncut, Gold Grade (g/t))
Decription | Domain | Domain | Domain | Domain | Domain | Domain | Domain | Domain | Domain |
| 110 | 120 | 130 | 140 | 210 | 220 | 310 | 510 | 520 |
Count | 2,054 | 491 | 170 | 207 | 1,601 | 72 | 620 | 7,390 | 8,428 |
Min | 0.007 | 0.007 | 0.014 | 0.03 | 0.01 | 0.034 | 0.025 | 0.005 | 0.005 |
Max | 22.05 | 18.59 | 5.77 | 27.15 | 117.0 | 12.92 | 210.3 | 25.59 | 17.95 |
Mean | 1.95 | 1.66 | 0.92 | 8.54 | 1.94 | 1.56 | 1.71 | 0.15 | 0.14 |
Median | 1.02 | 0.88 | 0.54 | 7.54 | 0.82 | 0.96 | 0.67 | 0.05 | 0.06 |
Std Dev | 2.52 | 2.30 | 1.11 | 5.23 | 4.15 | 2.03 | 9.05 | 0.57 | 0.44 |
CV | 1.29 | 1.39 | 1.20 | 0.61 | 2.14 | 1.31 | 5.30 | 3.93 | 3.07 |
The requirement for high grade cuts or caps was assessed via a number of steps to ascertain the reliability and special clustering of the high grade composites. The steps completed as part of the high grade cap assessment are summarised below:-
A review of the composite data to identify any data that deviate from the general data distribution. This was completed using histograms and log probability plots, for example, Figure 31-31 displays the log probability plot for Domain 310 and highlights the high grade cap applied. Construct and review plots comparing the contribution to the mean and standard deviation of the highest-grade composites (Figure 31-32). A visual review to allow assessment of the clustering of the higher-grade composite data.
Based on the high grade cap investigations, high grade caps were selected and applied to the composite data as shown in Figure 17-2. Little reduction in the available metal is noted for Inata North while the caps applied to Domain 310 adjust few data but impacts the mean grade significantly.
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Figure 17-2 : Summary of Upper Cuts including Pre and Post Application of High Grade Cap Sample Statistics (2m Run Length Composites - Gold Au (g/t))
Region | Domain | Pre Cap Statistics | High Grade Cap | Post Cap Statistics | % Reduc in Mean |
No Data | Mean | Std Dev | CV | Mean | Std Dev | CV | Number Data Capped |
| 110 | 2,054 | 1.95 | 2.52 | 1.29 | no cut | 1.95 | 2.52 | 1.29 | 0 | 100% |
| 120 | 491 | 1.66 | 2.30 | 1.39 | no cut | 1.66 | 2.30 | 1.39 | 0 | 100% |
Inata North | | | | | | | | | | | |
| 130 | 170 | 0.92 | 1.11 | 1.20 | no cut | 0.92 | 1.11 | 1.20 | 0 | 100% |
| 140 | 207 | 8.54 | 5.23 | 0.61 | no cut | 8.54 | 5.23 | 0.61 | 0 | 100% |
| 210 | 1,601 | 1.94 | 4.15 | 2.14 | 28.0 | 1.87 | 2.99 | 1.60 | 0 | 97% |
Inata Central | | | | | | | | | | | |
| 220 | 72 | 1.56 | 2.03 | 1.31 | 12.9 | 1.56 | 2.03 | 1.31 | 2 | 100% |
Inata South | 310 | 620 | 1.71 | 9.05 | 5.30 | 16.0 | 1.27 | 2.03 | 1.60 | 4 | 74% |
Min. Halo Nth | 510 | 7,390 | 0.15 | 0.57 | 3.93 | 10.0 | 0.14 | 0.45 | 3.15 | 4 | 97% |
Min. Halo Sth | 520 | 8,428 | 0.14 | 0.44 | 3.07 | 8.0 | 0.14 | 0.38 | 2.68 | 0 | 99% |
In aggregate, 299 specific gravity (SG) determinations were available for review. The SG data was collected by BHP and Resolute by water immersion and core weight/volume methods. The collection method is not well documented and, as such, significant uncertainty exists as to the nature of the data. However, RSG Global believes this data to represent insitu dry bulk density data and, as such, accepted the data for the study. The final density applied to resource reporting is presented as Figure 17-3.
Figure 17-3 : Summary Statistics Bulk Density Data (reported as SG)
Classified by Regolith
Domain | Oxide | Transitional | Primary |
Count | 71 | 186 | 42 |
Specific Gravity | 2.1 | 2.5 | 2.7 |
While RSG Global has elected to use the BHP and Resolute bulk density data, if the test sample has not been appropriately dried and sealed, moisture and voids could result in variable bulk density measurements. RSG Global has estimated that a 15% reduction for the oxide and transitional material and 5% for primary material is possible.
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The quality of the current bulk density data remains a material issue and the further collection of high confidence density data is considered essential. RSG Global recommends that drilling includes the collection of suitable spaced diamond core to allow robust density determination for all deposits. Sufficient data is required to accurately establish the density for oxide, transition and fresh material.
17.5 Variography
Variography is used to describe the spatial variability or correlation of an attribute (gold, silver, sulphur, etc). The spatial variability is traditionally measured by means of a variogram, which is generated by determining the averaged squared difference of data points at a nominated distance (h), or lag. The averaged squared difference (variogram or チ (h)) for each lag distance is plotted on a bivariate plot, where the X-axis is the lag distance and the Y-axis represents the average squared differences (チ (h)) for the nominated lag distance.
In this document, the term "variogram" is used as a generic word to designate the function characterising the variability of variables versus the distance between two samples. Correlograms have been used for the estimation studies completed for the Belahouro Project.
Fitted to the determined experimental variography is a series of mathematical models which, when used in the kriging algorithm, will recreate the spatial continuity observed in the variography. All variography for the resource estimation study has been based on the 2m composite grade data captured within the investigated mineralized domains.
Geostatistical software Isatis has been used to generate and model variography. The rotations are reported as inputs for grade estimation, with X (rotation around Z axis), Y (rotation around Y`) and Z (rotation around X``) axes also being referred to as the major, semi-major and minor axes respectively.
Variography was generated and modelled for all estimated mineralization domains although the Inata North mineralization (Domains 110, 120 and 130) were grouped for variography. Typically, variography was generated and modelled for the grade data and 5 indicator thresholds, generally representing the 30th, 50th, 75th 85th and 90th percentile of the data distribution.
A summary of the key aspects of the indicator variography is provided in bullet form below:-
The relative nugget (% nugget variance of the total variogram variance) for the indicator variography ranges between 30% and 48%, indicating a moderate amount of close-spaced variability. Similar relative nugget effects, ranging from 36% to 40%, are noted for the grade variography.
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Short-range structures dominate the non-nugget variance, often with a range at or less than the average drill spacing. The implication of this is that a high degree of smoothing can be expected in estimation and that estimation of small blocks will be ineffective and result in over smoothing. Overall ranges are noted to be in excess of the current drill spacing. No plunge component within the mineralized envelopes was identified for any domains.
The modelled variography is consistent with both the geological modelling and the style of mineralization. Increased nugget effects and reduced ranges have been fitted for the higher grade indicator thresholds. The indicator variogram models are presented as Figure 17-4.
Figure 17-4 : Gold Variogram Models- Inata
Domain | Indicator | | Rotation | Structure 1 | Structure 2 |
| Thresh. | | z | y | x | Sill | Range | Sill | Range |
| or Type | Nugget | rotn | rotn | rotn | 1 | X | Y | Z | 2 | X | Y | Z |
110/120/130/140 | Au | 0.40 | 05 | 0 | 70 | 0.41 | 42 | 25 | 11 | 0.19 | 110 | 70 | 26 |
0.59 | 0.42 | 05 | 0 | 70 | 0.40 | 45 | 34 | 12 | 0.18 | 120 | 95 | 22 |
1.27 | 0.42 | 05 | 0 | 70 | 0.40 | 40 | 31 | 10 | 0.18 | 105 | 85 | 22 |
2.56 | 0.45 | 05 | 0 | 70 | 0.38 | 40 | 30 | 10 | 0.17 | 90 | 70 | 22 |
5.16 | 0.45 | 05 | 0 | 70 | 0.38 | 35 | 26 | 9 | 0.17 | 80 | 60 | 18 |
8.49 | 0.48 | 05 | 0 | 70 | 0.36 | 30 | 22 | 8 | 0.16 | 70 | 50 | 18 |
220/230/510/520 | Au | 0.38 | 15 | 0 | 70 | 0.39 | 30 | 35 | 9 | 0.23 | 50 | 80 | 13 |
0.45 | 0.36 | 15 | 0 | 70 | 0.41 | 35 | 28 | 14 | 0.23 | 85 | 90 | 22 |
0.84 | 0.38 | 15 | 0 | 70 | 0.41 | 35 | 28 | 13 | 0.21 | 85 | 90 | 21 |
1.74 | 0.38 | 15 | 0 | 70 | 0.41 | 35 | 24 | 13 | 0.21 | 85 | 90 | 21 |
3.44 | 0.40 | 15 | 0 | 70 | 0.39 | 30 | 20 | 10 | 0.21 | 65 | 75 | 17 |
7.44 | 0.48 | 15 | 0 | 70 | 0.38 | 15 | 14 | 4 | 0.16 | 45 | 47 | 7 |
310 | Au | 0.36 | 05 | 0 | 70 | 0.46 | 35 | 28 | 14 | 0.18 | 85 | 80 | 22 |
0.41 | 0.38 | 05 | 0 | 70 | 0.45 | 50 | 32 | 14 | 0.17 | 110 | 80 | 26 |
0.67 | 0.38 | 05 | 0 | 70 | 0.45 | 50 | 28 | 14 | 0.17 | 110 | 60 | 26 |
1.15 | 0.40 | 05 | 0 | 70 | 0.43 | 45 | 28 | 14 | 0.17 | 100 | 60 | 26 |
2.10 | 0.42 | 05 | 0 | 70 | 0.41 | 45 | 24 | 12 | 0.17 | 70 | 50 | 20 |
4.27 | 0.44 | 05 | 0 | 70 | 0.41 | 30 | 20 | 8 | 0.15 | 55 | 40 | 14 |
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17.6 Block Model Development
A three dimensional block model was generated to enable grade estimation. The selected block size was based on the geometry of the domain interpretation and the data configuration. A parent block size of 15mE x 25mN x 5mRL was selected with sub-blocking to a 3.75m E x 6.25m N x 1.25m RL cell size to improve volume representation of the interpreted wireframe models.
The block model construction parameters are displayed in Figure 17-5.
Figure 17-5 : Block Model Parameters
Description | East | North | Elevation |
Origin | 682300 | 1585200 | 50 |
Extent (m) | 1100 | 4300 | 300 |
Parent Block size (m) | 15 | 25 | 5 |
Sub-Block Size (m) | 3. 75 | 6.25 | 1.25 |
Number of Blocks (parent) | 60 | 71 | 90 |
The mineralization domain and regolith was coded to the block model for tonnage reporting. The mean bulk density, sub-divided by regolith, was applied to the block model for tonnage reporting, as summarised below:-
Oxide 2.1 t/m3
Transitional 2.5t/m3
Primary 2.7t/m3
Sufficient variables were included in the block model construction to enable grade estimation and reporting.
17.7 Grade Estimation
MIK was applied to grade estimation at Belahouro. All grade estimation was completed in the mining package Vulcan using the GSLib geostatistical software. MIK is considered a robust estimation method for grade estimates for gold deposits such as Inata when adequate consideration is given to restricting the influence of high-grade data. MIK grade estimation, with change of support, has been applied to produce recovered gold estimates targeting a selective mining unit (SMU) of 5m E x 10m N x 5m RL.
Panel estimates have been generated based on the parent block dimension, with the SMU emulation accomplished via an indirect lognormal change of support. Comparison of the SMU estimates with a global
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change of support generated using the discrete gaussian model, formed part of the resource estimate validation process.
The sample search parameters applied to the MIK were derived by various trials and included interactive testing of randomly selected blocks. The search neighbourhood testing included a review and optimization in respect to the collection of sufficient data to ensure robust estimation but minimization of negative kriging weights, which in the context of MIK, are considered sub-optimum. Relatively restricted sample searches were applied to limit smoothing, however the majority of the interpreted domains blocks are estimated in the first sample search.
A consistent two-pass sample search approach was applied. Search orientations and passes are described in Figure 17-6. The variance adjustment factors, used to produce the selective mining estimates, are provided as Figure 17-7.
Based on an extensive visual review completed in conjunction with statistical checks, RSG Global considers that the Inata resource estimate is globally robust, but is locally (on a block-by-block basis) of lower confidence, due to the identified moderate short-scale variability.
Figure 17-6 : Sample Search Criteria
Parameter | | Sample Search Orientation | Simple Search | Sample |
ID | Description | Major | Semi- | Minor | Major | Semi- | Minor | Min | Max | Max / |
| | | Major | | | Major | | | | DH |
Nth110 | Domain 110 Pass 1 | | | | | | | | | |
5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 110 Pass 2 | | | | | | | | | |
5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Nth120 | Domain 120 Pass 1 | | | | | | | | | |
5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 120 Pass 2 | | | | | | | | | |
5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Nth130 | Domain 130 Pass 1 | | | | | | | | | |
5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 130 Pass 2 | | | | | | | | | |
5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Nth140 | Domain 130 Pass 1 | | | | | | | | | |
5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 130 Pass 2 | | | | | | | | | |
5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Cen210 | Domain 210 Pass 1 | | | | | | | | | |
15 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
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| | | | |
Parameter | | Sample Search Orientation | Simple Search | Sample |
ID | Description | Major | Semi- | Minor | Major | Semi- | Minor | Min | Max | Max / |
| | | Major | | | Major | | | | DH |
| Domain 210 | | | | | | | | | |
| Pass 2 | 15 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Cen220 | Domain 220 | | | | | | | | | |
Pass 1 | 15 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 220 | | | | | | | | | |
Pass 2 | 15 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Sth210 | Domain 310 | | | | | | | | | |
Pass 1 | 5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 310 | | | | | | | | | |
Pass 2 | 5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Sth210 | Domain 310 | | | | | | | | | |
Pass 1 | 5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 310 | | | | | | | | | |
Pass 2 | 5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Halo510 | Domain 510 | | | | | | | | | |
Pass 1 | 5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 510 | | | | | | | | | |
Pass 2 | 5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Halo520 | Domain 520 | | | | | | | | | |
Pass 1 | 5 | 0 | 70 | 60 | 40 | 30 | 24 | 36 | 6 |
Domain 520 | | | | | | | | | |
Pass 2 | 5 | 0 | 70 | 120 | 80 | 60 | 12 | 36 | 6 |
Figure 17-7 : Change of support Parameters - emulating a 5mE x 10mN x 5mRL SMU
Region | Domain | Variance Adjustment Factor |
Inata North | 110 | 0.11 |
120 | 0.08 |
130 | 0.19 |
140 | 0.11 |
Inata Central | 210 | 0.15 |
220 | 0.27 |
Inata South | 330 | 0.32 |
Halo 510 | 510 | 0.03 |
Halo 520 | 520 | 0.09 |
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17.8 Resource Classification
The Resource Statement has been prepared and reported in accordance with Canadian National Instrument 43-101. The resource estimate has been classified as an Indicated and Inferred Mineral Resource based on the confidence of the input data, geological interpretation, and grade estimation. This is summarised in Figure 17-8 as confidence levels of key criteria.
Figure 17-8 : Inata Deposit - Confidence Levels of Key Criteria
Items | Discussion | Confidence |
Drilling Techniques | Diamond/RC - Industry Standard approach | Moderate/High |
Logging | Standard nomenclature has been adopted but not used in entire database. Independent assessments and recommendations have been completed by RSG Global that identifies the requirement for detailed logging of oxidation and weathering. | Moderate |
Drill Sample Recovery | Recoveries are not recorded in database. RSG Global site visit indicates recoveries achieved in diamond drilling is below industry standards. Visual review by RSG Global suggests RC recoveries are of high standard. | Moderate |
Sub-sampling Techniques and Sample Preparation | DDH drilling sampled in selective intervals. RC sampling conducted by industry standard techniques. | Moderate/High |
Quality of Assay Data | Quality control procedures available and reviewed in site visit by RSG Global and considered to be of industry standard. | Moderate/High |
Verification of Sampling and Assaying | Assessment of sampling and assaying been completed by RSG Global site review and has recommended and implemented new procedures. | Moderate/High |
Location of Sampling Points | Survey of all collars conducted with accurate survey equipment. Investigation of downhole survey indicates appropriate behaviours. | Moderate |
Data Density and Distribution | Majority of regions defined on a notional 50mE x 25mN drill spacing. Drilling required at a 25mE x 25mN pattern for high confidence resource estimation | Moderate/High |
Audits or Reviews | Data collection assessed by RSG Global site review and Cavey(2004). | NA |
Database Integrity | Checking against original assay certificates completed by RSG Global. Checks indicate acceptable correlation with database | Moderate/High |
Geological Interpretation | Weathering (regolith) interpretation is considered preliminary with more uncertainty associated with top of fresh rock. The broad mineralisation constraints are considered robust and moderate confidence. | Low to moderate |
Estimation and Modelling Techniques | Multiple Indicator Kriging | Moderate-High |
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| | |
Items | Discussion | Confidence |
Cutoff Grades | MIK is independent of cutoff grade although the mineralisation constraints were based on a notional 0.3g/t Au lower cutoff grade. | Moderate-High |
Mining Factors or Assumptions | A 5mE x 10mN x 5mRL SMU replicated for gold. | Moderate |
Metallurgical Factors or Assumptions | Not applied | NA |
Tonnage Factors (Insitu Bulk Densities) | Localised data collected as specific gravity determinations. Industry standard methodologies recommended by RSG Global during site visit. | Moderate |
Based on the confidence criteria, a series of wireframe solids were generated to allow coding of the block model as a combination of Indicated Resource (resclass = 2) and Inferred Resource (resclass = 3). These wireframe solids were primarily based upon drill density and geological continuity of the orebody. All estimated blocks falling outside the resource categorization solids were excluded from resource reporting.
17.9 Resource Statement
The Resource Statement has been prepared and reported in accordance with Canadian National Instrument 43-101, Standards of Disclosure for Mineral Projects of February 2001 (the Instrument) and the classifications adopted by CIM Council in August 2000.
Figure 17-9 below provides a summary of the Indata deposits Mineral Resources estimated by RSG Global, as at 30 September 2005. The resources are subdivided by cutoff grade and resource category.
Figure 17-9 : Grade Tonnage Report - Multiple Indicator Kriging
(Selective Mining Unit 5mEx10mNx5mRL 30th September 2005)
Cut - off | | Indicated | | | Inferred | |
Grade | Tonnage (Kt) | Au g/t | K ozs | Tonnage (Kt) | Au g/t | K ozs |
0.4 | 15,836 | 1.9 | 945 | 5,593 | 1.3 | 236 |
0.5 | 15,043 | 1.9 | 933 | 4,869 | 1.4 | 226 |
0.7 | 13,121 | 2.1 | 895 | 3,923 | 1.6 | 207 |
1.0 | 10,297 | 2.5 | 818 | 2,811 | 2.0 | 177 |
1.5 | 6,964 | 3.1 | 686 | 1,600 | 2.5 | 129 |
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It is recommended that a cut off of 0.5g/t Au be selected for reporting purposes. The resource model reported by regolith/oxidation sub-division is summarised in Figure 17-10.
Figure 17-10 : Grade Tonnage Distribution Subdivided by N43-101 Resource Categories
Selective Mining Unit Estimate for 5mEx10mNx5mRL Size Blocks by Multiple Indicator Kriging with Indirect Log-normal Correction
Resource | Cutoff | Saprolite | Transitional | Primary | Total |
Category | Grade | Tonnes | Au | | Tonnes | Au | | Tonnes | Au | | Tonnes | Au | |
(N43-101) | (Au g/t) | (x1000) | g/t | kOz | (x1000) | g/t | kOz | (x1000) | g/t | kOz | (x1000) | g/t | KOz |
Indicated | 0.4 | 11,286 | 1.9 | 684 | 2,448 | 1.8 | 144 | 2,103 | 1.7 | 117 | 15,836 | 1.9 | 945 |
0.5 | 10,740 | 2.0 | 675 | 2,320 | 1.9 | 142 | 1,983 | 1.8 | 115 | 15,043 | 1.9 | 933 |
0.7 | 9,372 | 2.2 | 648 | 2,020 | 2.1 | 136 | 1,729 | 2.0 | 110 | 13,121 | 2.1 | 895 |
1.0 | 7,376 | 2.5 | 593 | 1,583 | 2.4 | 124 | 1,338 | 2.3 | 100 | 10,297 | 2.5 | 818 |
Inferred | 0.4 | 1,165 | 0.9 | 34 | 662 | 1.4 | 29 | 3,766 | 1.4 | 173 | 5,593 | 1.3 | 236 |
0.5 | 776 | 1.1 | 28 | 572 | 1.5 | 28 | 3,522 | 1.5 | 170 | 4,869 | 1.4 | 226 |
0.7 | 482 | 1.4 | 22 | 468 | 1.7 | 26 | 2,973 | 1.7 | 159 | 3,923 | 1.6 | 207 |
1.0 | 305 | 1.7 | 17 | 345 | 2.0 | 23 | 2,160 | 2.0 | 137 | 2,811 | 2.0 | 177 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
18 MINING OPERATIONS
18.1 Mining Methods
Two scenario's were considered for this evaluation:-
An owner operated mining fleet, the costs for this was provided by Goldbelt Resources and was felt by RSG Global to be some 15% too low but well within the scope of this evaluation.
A contract mining scenario was assumed for this mining study, using RSG Global's in-house cost database for similar sized and current mining projects in Burkina Faso.
18.2 Open Pit Optimization and Parameters
Pit optimization studies have been undertaken using the resource models as developed by RSG Global as the basis for pit optimization.
Pit optimizations were carried out for the Inata deposits only and the Whittle Four-X pit optimization software package was used.
The Project economics were assessed for 3 different stand alone Carbon in Leach ("CIL") as well as 3 different stand alone Heap Leach ("HL") mill throughputs, namely 1.0Mtpa, 1.5Mtpa and 2.0Mtpa. In addition a CIL and Heap Leach ("HL") combined scenario was investigated.
18.2.1 Whittle Pit Optimization Model Construction
The Whittle Four-X model development was carried out in Vulcan.
Whittle Four-X deals with the amount of metal in a block, not grade. Knowing the tonnage and the metal in a block, Whittle Four-X can calculate the grade of a block. To that end the metal content of a block was calculated using the grade estimate derived from the MIK resource estimate.
In order to capture the low grade material, the Whittle Four-X model was developed using incremental ore parcels where the ore tonnage and metal content in a block was separated into the following grade ranges:-
0.5 - 0.7g/t Au
0.7 - 0.9g/t Au
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>0.9g/t Au
Appendix 1 provides a detailed summary of the Whittle Four-X model development
18.2.2 Dilution and Mining Recovery Factors
No mining dilution was added into the pit optimization as the MIK grade estimation technique inherently incorporates dilution.
The mining recovery was set at 97%.
18.2.3 Whittle Four-X Input Parameters
All references to monetary values are denominated in United States of America dollars, unless specifically stated otherwise.
The input parameters that were adopted for the pit optimization cover a wide range of disciplines and as a result a number of specialists have been involved in determining these parameters. The principal input parameters used in the pit optimization and the specialists responsible for determining these parameters are listed in Figure 18-1.
The pit wall slope parameters that were determined for the Belahouro Gold Project were based on geotechnical report from George, Orr and Associates. The pit wall slope parameters were subdivided by weathering type.
In summary, the overall slope angles adopted for the pit optimization were as follows:-
Oxide 380
Transition 500
Primary 500
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 18-1 : Source of Main Input Parameters
Input Parameter | Source |
Commodity price | Goldbelt |
Owner Operated Mining Costs | Goldbelt |
Contract Mining Costs | RSG Global's in-house cost database |
Owner's mining associated costs | RSG Global's in-house cost database |
Metallurgical and Processing | GBM |
General and Administration cost | GBM, Goldbelt |
Geotechnical | George, Orr and Associates |
Governmental | Goldbelt |
Details of the abovementioned parameters are provided below.
18.2.4 Commodity Price
A flat gold price of $450/ounce Au was adopted for the Belahouro Gold Project.
18.2.5 Mining Costs
18.2.5.1 Contract Mining Scenario
All contract mining related costs used in the pit optimization were based on RSG Global's in-house cost database for similar sized and current mining projects in Burkina Faso.
They include contract mining, mine supervision, grade control, dewatering and crusher feed costs.
Appendix 2 contains further detail on the mining costs and a summary of the principal costs associated with mining are shown in Figure 18-2
Figure 18-2 : Summary Mining Operating Costs
Item | Unit | Value |
Average waste mining cost | $/t | 1.97 |
Average ore mining cost | $/t | 2.09 |
Mine supervision and overheads | M$/yr | 1.19 |
De-watering | M$/yr | 0.05 |
Rehabilitation | $/t ore | 0.10 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | |
Item | Unit | Value |
Average grade control | $/t ore | 0.21 |
Crusher feed (based on 40 rehandle @ $0.35/t) | $/t ore | 0.14 |
Grade control costs were based on a RC drilling rate of $12.00 per meter and assaying cost of $6.00 per assay.
Crusher feed costs were based on a unit rate of $0.35/t of ore, assuming 40% rehandle and the balance being direct feed to the crusher.
18.2.5.2 Owner Mining Scenario
Goldbelt provided RSG Global with the mining costs for an owner mining case. The mining costs supplied were $1.45/t for waste mining and $1.75/t for ore mining.
RSG Global believes that the mining costs are optimistic by 10% to 15%, however, these costs are considered to be within the accuracy of this study.
In addition, Goldbelt reduced the mine supervision cost from $1.19/t to $1.00/t.
With regards to an owner mining scenario, Goldbelt requested RSG Global to provide an indicative estimate of the main production mining fleet required for a 1Mtpa mining operation at Belahouro.
Based on RSG Global's in-house cost database RSG Global believes that the capital expenditure for such a fleet would be in the order of $10 million to $12 million. Figure 18-3 provides a summary of a typical main production mining fleet envisaged for a 1Mtpa CIL operation at Belahouro.
Figure 18-3 : Summary Notional Mining Fleet
Equipment Type | Capacity | Number |
Excavator | 80t - 120t | 2 |
Haul truck | 60t - 90t | 9 |
Drill rig | 115mm - 140mm | 3 |
FEL | 230kW - 350kW | 1 |
Track dozer | 230kW - 300kW | 2 |
Grader | 120kW - 160kW | 1 |
Water truck | 40kl | 1 |
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
In addition, various miscellaneous equipment would be required e.g. service trucks, fuel/lube trucks, light vehicles, crane, tyre handler, shift buses, lighting plants etc
18.2.6 Pit Optimization for CIL and Heap Leach
The Figure 18-4 represents the pit optimization parameters for various tonnage throughputs and for CIL process or a combination of Heap Leach and CIL.
Figure 18-4 : Pit Optimisation Options (Summary Whittle Four-X Input Parameters)
Item | Unit | CIL Only | HL Only | CIL and HL Combined 1 |
| | Owner | Contract Mining | No Agg3 | With Agg 4 | No Agg | With Agg |
| | Mining 2 |
Mill throughput | Mtpa | 1.0 | 1.0 | 1.5 | 2.0 | 1.0 | 1.5 | 2.0 | 1.0 | 1.5 | 2.0 | 1.0 | 1.0 | 1.0 | 1.0 |
Gold Price | $/oz | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 | 450 |
State government royalty | % | 2.5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Processing - Oxide cost | $/t | 6.33 | 6.93 | 6.27 | 6.31 | 1.22 | 0.98 | 0.86 | 3.02 | 2.77 | 2.65 | 6.93 | 3.28 | 6.93 | 5.08 |
- Transition | milled | 6.90 | 7.40 | 6.86 | 7.35 | 1.22 | 0.98 | 0.86 | 3.02 | 2.77 | 2.65 | 7.40 | 3.28 | 7.40 | 5.08 |
- Primary | | 6.80 | 7.40 | 6.86 | 7.35 | 1.22 | 0.98 | 0.86 | 3.02 | 2.77 | 2.65 | 7.40 | 3.28 | 7.40 | 5.08 |
General & Administration | M$/Yr | 3.10 | 3.34 | 3.34 | 3.34 | 1.53 | 1.42 | 1.46 | 1.53 | 1.42 | 1.46 | 3.34 | 0.0 | 3.34 | 0.0 |
Average mining cost | $/t mined | 1.49 | 1.99 | 1.99 | 2.05 | 1.92 | 1.92 | 1.92 | 1.91 | 1.91 | 1.92 | 1.99 | 1.99 | 1.99 | 1.99 |
Mine supervision | M$/Yr | 1.00 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 | 1.19 |
Grade control | $/t ore | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 | 0.21 |
Crusher Feed (40% rehandle at $0.35/t) | $/t ore | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 |
Rehabilitation | $/t ore | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 | 0.10 |
Dewatering | M$/Yr | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
Processing - Oxide | | 95 | 95 | 95 | 95 | 58 | 58 | 58 | 58 | 58 | 58 | 95 | 58 | 95 | 58 |
recovery - Transition | % | 90 | 85 | 85 | 85 | 58 | 58 | 58 | 58 | 58 | 58 | 85 | 58 | 85 | 58 |
- Primary | | 90 | 83 | 83 | 83 | 58 | 58 | 58 | 58 | 58 | 58 | 83 | 58 | 83 | 58 |
Mining dilution added 5 | % | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Mining recovery | % | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 |
Overall pit wall slope angle (incl of a ramp system) | degrees | 38-50 | 34 45 | 34-45 | 34-45 | 34-45 | 34-45 | 34-45 | 34 45 | 34-45 | 34-45 | 34-45 | 34-45 | 34-45 | 34-45 |
Cutoff - Oxide | g/t | 0.8 | 0.9 | 0.7 | 0.7 | 0.6 | 0.4 | 0.3 | 0.8 | 0.6 | 0.6 | 0.9 | 0.5 | 0.9 | 0.7 |
____________________________________
1 For the CIL / HL combined scenario it was assumed that the CIL operation carried 100% of the 'fixed' costs, namely G&A cost mine supervision and de-watering.
2 All scenarios except for the owner mining scenario were carried out from Jul to Oct 05 and assumed contract mining. The owner mining scenario was carried out in Nov 05 and included updated metallurgical and geotechnical parameters
3 Heap leach without agglomeration
4 Heap leach with agglomeration
5 No mining dilution was added as the MIK grade estimation technique inherently incorporates dilution.
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
Item | Unit | CIL Only | HL Only | CIL and HL Combined 1 |
| | Owner | Contract Mining | No Agg3 | With Agg 4 | No Agg | With Agg |
| | Mining 2 |
- Transition | | 0.9 | 1.1 | 0.9 | 0.9 | 0.6 | 0.4 | 0.3 | 0.8 | 0.6 | 0.6 | 1.1 | 0.5 | 1.1 | 0.7 |
- Primary | | 0.9 | 1.4 | 0.9 | 0.9 | 0.6 | 0.4 | 0.3 | 0.8 | 0.6 | 0.6 | 1.1 | 0.5 | 1.1 | 0.7 |
A summary of the pit optimizations results, based on the total resource and the maximum undiscounted operating cash flow, is provided in table 18-5 below.
Figure 18-5 : Summary of Pit Optimisation Results
| | CIL Only | HL Only | CIL and HL Combined |
Item | Unit | Owner Mining 1 | Contract Mining | No Agglomeration | With Agglomeration |
| | HL(N) 2 | HL(A) 3 |
Throughput | Mtpa | 1.0 | 1.0 | 1.5 | 2.0 | 1.0 | 1.5 | 2.0 | 1.0 | 1.5 | 2.0 | 1.0 / 1.0 | 1.0 / 1.0 |
Base of pit | mRL | 155 | 200 | 200 | 180 | 235 | 230 | 230 | 235 | 235 | 235 | 200 | 200 |
Total material | Mt | 46.5 | 20.5 | 23.2 | 30.1 | 13.0 | 15.3 | 15.8 | 10.8 | 12.2 | 13.0 | 21.8 | 20.6 |
Waste | Mt | 39.9 | 16.7 | 18.7 | 24.9 | 9.3 | 11.2 | 11.5 | 7.8 | 8.8 | 9.4 | 17.0 | 16.5 |
Strip ratio | w:o | 6.0 | 4.4 | 4.1 | 4.8 | 2.5 | 2.7 | 2.7 | 2.6 | 2.6 | 2.5 | 3.6 | 4.0 |
Mill Feed | Mt | 6.6 | 3.8 | 4.5 | 5.2 | 3.7 | 4.1 | 4.2 | 3.0 | 3.4 | 3.7 | 2.6 / 1.3 | 3.7 / 0.4 |
Grade | g/t | 2.7 | 2.8 | 2.6 | 2.6 | 2.4 | 2.4 | 2.3 | 2.7 | 2.6 | 2.4 | 3.0 / 1.0 | 2.8 / 0.9 |
Recovered gold | Koz | 539 | 324 | 355 | 406 | 167 | 181 | 184 | 149 | 160 | 167 | 335 | 329 |
___________________________________
1 Includes updated metallurgical and geotechnical parameters derived from preliminary 2005 testwork.
2 Heap leach without agglomeration
3 Heap leach with agglomeration
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
18.3 Pit Optimization
18.3.1 Pit Optimization Setup
The pit optimizations were carried out for a wide range of Au prices, from as low as $225/oz to a maximum of $900/oz. Figures 18-6 & 18.7, display the pit size in relationship to the gold price for the 3 CIL scenarios, namely 1.0Mtpa, 1.5Mtpa and 2.0Mtpa mill throughput, are displayed, as well as the 1Mtpa CIL and 1.0Mtpa HL combined scenario, for the pit optimization based on the total resources.
Figure 18-6 : Au Price vs Mill Feed -CIL Standalone Scenarios

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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 18-7 : Au Price vs Mill Feed -HL Standalone and CIL & HL Combined Scenarios Based on Total resources

The Whittle Four-X financial analysis was carried out using the following base assumptions and parameters:-
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Mill throughput As applicable, 1.0Mtpa, 1.5Mtpa or 2.0Mtpa.
Mill limiting i.e., sufficient waste is removed each period to enable the required milling rate to be maintained.
Discount rate 10%.
Base case Au price $450/oz.
Three cashflows were produced for each analysis:-
Undiscounted Operating Cashflow.
Best Case Discounted Operating Cashflow where each incremental pit is removed prior to advancing to the next adjacent incremental pit. The cashflow schedule is the equivalent of multiple pushbacks. Worst Case Discounted Operating Cashflow - Each bench is mined out prior to moving to the next bench, using the optimization block height as the default bench height. The cashflow schedule is the equivalent of top down 'flat' mining.
An actual mining schedule will most likely lie between the two extremes of Worst Case and Best Case as described above.
The cashflows, as described above, are exclusive of any capital expenditure or Project start-up costs and should be used for pit optimization comparison purposes only. No Net Present Value (NPV) can be derived from these cashflows.
18.4 Pit Optimization Results
Except for the 1.0Mtpa CIL Scenario which was assessed for both contract mining and owner operated mining, all other pit optimisation results described in this section assume a contract mining scenario.
18.4.1 Scenarios
18.4.1.1 1.0 Mtpa Mill Throughput Rate November 2005 Parameters
Based on the total resources and at an Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 26 however contains some 6.6 million tonnes of ore at a grade of 2.7g/t Au, for approximately 539,000 ounces of recovered Au metal. Some 39.9 million tonnes of waste are contained within the pit shell with a stripping ratio of 6.0:1. The undiscounted operating cashflow,
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
exclusive of capital and start up costs, is $94 million. The Worst Case discounted cashflow is $61 million, whilst the Best Case discounted cashflow is $73 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted schedule was calculated out at $67 million.
The cash operating cost derived from the pit optimization is $275/oz.
Appendix 3 contains a detailed summary of the 1.0Mtpa CIL and owner operated mining pit optimisation results that incorporate the preliminary results of the 2005 metallurgical and geotechnical testwork.
18.4.1.2 1.0 Mtpa Throughput Rate- Contract Mining
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 3.8 million tonnes of ore at a grade of 2.8g/t Au, for approximately 324,000 ounces of recovered Au metal. Some 16.7 million tonnes of waste are contained within the pit shell with a stripping ratio of 4.4:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $55 million. The Worst Case discounted cashflow is $42 million, whilst the Best Case discounted cashflow is $47 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $44 million.
The cash operating cost derived from the pit optimisation is $279/oz.
Appendix 4 contains a detailed summary of the 1.0Mtpa CIL pit optimisation results
18.4.1.3 1.5 Mtpa Mill Throughput Rate
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 4.5 million tonnes of ore at a grade of 2.6g/t Au, for approximately 355,000 ounces of recovered Au metal. Some 18.7 million tonnes of waste are contained within the pit shell with a stripping ratio of 4.1:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $64 million. The worst case discounted cashflow is$52 million, whilst the best case discounted cashflow is $55million.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $53 million.
The cash operating cost derived from the pit optimization is $269/oz.
Appendix 5 contains a detailed summary of the 1.5Mtpa CIL pit optimization results.
18.4.1.4 2.0 Mtpa Mill Throughput Rate
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 5.2 million tonnes of ore at a grade of 2.6g/t Au, for approximately 406,000 ounces of recovered Au metal. Some 24.9 million tonnes of waste are contained within the pit shell with a stripping ratio of 4.8:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $68 million. The worst case discounted cashflow is$56 million, whilst the best case discounted cashflow is $60million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $58 million.
The cash operating cost derived from the pit optimization is $283/oz.
Appendix 6 contains a detailed summary of the 2.0Mtpa CIL pit optimization results.
18.4.2 HL Only
18.4.2.1 1.0Mtpa Throughput Rate - No Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 3.7 million tonnes of ore at a grade of 2.4g/t Au, for approximately 167,000 ounces of recovered Au metal. Some 9.3 million tonnes of waste are contained within the pit shell with a stripping ratio of 2.5:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $31.7 million. The Worst Case discounted cashflow is $24.5 million, whilst the Best Case discounted cashflow is $26.5 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $25.5 million.
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Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The cash operating cost derived from the pit optimisation is $261/oz.
Appendix 7 contains a detailed summary of the 1.0Mtpa HL only - No Agglomeration pit optimisation results.
18.4.2.2 1.0Mtpa Throughput Rate - With Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 3.0 million tonnes of ore at a grade of 2.7g/t Au, for approximately 149,000 ounces of recovered Au metal. Some 7.8 million tonnes of waste are contained within the pit shell with a stripping ratio of 2.6:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $25.8 million. The Worst Case discounted cashflow is $20.7 million, whilst the Best Case discounted cashflow is $22.2 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $21.5 million.
The cash operating cost derived from the pit optimisation is $277/oz.
Appendix 8 contains a detailed summary of the 1.0Mtpa HL only - With Agglomeration pit optimisation results.
18.4.2.3 1.5 Mtpa Throughput Rate - No Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 4.1 million tonnes of ore at a grade of 2.4g/t Au, for approximately 181,000 ounces of recovered Au metal. Some 11.2 million tonnes of waste are contained within the pit shell with a stripping ratio of 2.7:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $36.5 million. The Worst Case discounted cashflow is $29.8 million, whilst the Best Case discounted cashflow is $31.5 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $30.7 million.
The cash operating cost derived from the pit optimisation is $249/oz.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 9 contains a detailed summary of the 1.5Mtpa HL only - No Agglomeration pit optimisation results.
18.4.2.4 1.5 Mtpa Throughput Rate - With Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 3.4 million tonnes of ore at a grade of 2.6g/t Au, for approximately 160,000 ounces of recovered Au metal. Some 8.8 million tonnes of waste are contained within the pit shell with a stripping ratio of 2.6:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $29.7 million. The Worst Case discounted cashflow is $25.1 million, whilst the Best Case discounted cashflow is $26.1 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $25.6 million.
The cash operating cost derived from the pit optimisation is $264/oz.
Appendix 10 contains a detailed summary of the 1.5Mtpa HL only - With Agglomeration pit optimisation results.
18.4.2.5 2.0 Mtpa Throughput Rate - No Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 4.2 million tonnes of ore at a grade of 2.3g/t Au, for approximately 184,000 ounces of recovered Au metal. Some 11.5 million tonnes of waste are contained within the pit shell with a stripping ratio of 2.7:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $38.7 million. The Worst Case discounted cashflow is $32.9 million, whilst the Best Case discounted cashflow is $34.4 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $33.6 million.
The cash operating cost derived from the pit optimisation is $240/oz.
Appendix 11 contains a detailed summary of the 2.0Mtpa HL only - No Agglomeration pit optimisation results.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
18.4.2.6 2.0 Mtpa Throughput Rate - With Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains some 3.7 million tonnes of ore at a grade of 2.4g/t Au, for approximately 167,000 ounces of recovered Au metal. Some 9.4 million tonnes of waste are contained within the pit shell with a stripping ratio of 2.5:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $31.6 million. The Worst Case discounted cashflow is $27.3 million, whilst the Best Case discounted cashflow is $28.2 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $27.86 million.
The cash operating cost derived from the pit optimisation is $261/oz.
Appendix 12 contains a detailed summary of the 2.0Mtpa HL only - With Agglomeration pit optimisation results.
18.4.3 CIL plus HL Combined Scenario
18.4.3.1 1.0 Mtpa CIL and 1.0Mtpa HL Throughput Rate - Excluding HL Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains the following mill feed tonnes:-
CIL 3.4Mt @ 3.0g/t for 310,000oz of recovered gold.
HL 1.3Mt @ 1.0g/t for 25,000oz of recovered gold.
This equates to a total of 335,000 oz of recovered gold.
Some 17.0 million tonnes of waste are contained within the pit shell with a stripping ratio of 3.6:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $57 million. The Worst Case discounted cashflow is $45 million, whilst the Best Case discounted cashflow is $48 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $47 million.
The cash operating cost derived from the pit optimization is $280/oz.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 13 contains a detailed summary of the 1.0Mtpa CIL plus 1.0Mtpa HL - No agglomeration pit optimization results.
18.4.3.2 1.0Mtpa CIL and 1.0Mtpa HL Throughput Rate - Including HL Agglomeration
Based on the total resources and at a Au price of $450/oz the optimum pit shell, based on the maximum undiscounted cash flow, is pit shell 21. Pit shell 21 contains the following mill feed tonnes:-
CIL 3.7Mt @ 2.8g/t for 322,000oz of recovered gold.
HL 0.4Mt @ 0.9g/t for 7,000oz of recovered gold.
This equates to a total of 329,000 oz of recovered gold.
Some 16.5 million tonnes of waste are contained within the pit shell with a stripping ratio of 4.0:1. The undiscounted operating cashflow, exclusive of capital and start up costs, is $56 million. The Worst Case discounted cashflow is $43 million, whilst the Best Case discounted cashflow is $47 million.
To ascertain the likely discounted cashflow derived from a realistic mine production schedule, the average discounted cashflow was calculated and is $45 million.
The cash operating cost derived from the pit optimization is $281/oz.
Appendix 14 contains a detailed summary of the 1.0Mtpa CIL plus 1.0Mtpa HL - Including HL agglomeration pit optimization results.
18.5 Whittle Four-X Sensitivity Analysis
For the CIL scenarios the following sensitivity analysis was carried out:-
Gold price
Resource categorization
Pit Slopes
For the HL scenario a HL recovery of 83% was assessed, whereby the 'fixed' costs were evenly split between the CIL and HL operation. The 'fixed' costs comprised G&A costs, mine supervision and de-watering.
The results of the sensitivity analysis for the CIL scenarios are summarised in Figure 18-8, whilst Figure
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
18-9 provides a summary of the sensitivity analysis that was carried out for the CIL plus HL combined scenario.
The sensitivity analysis showed that a $50/oz (11%) change in gold price results in an approximate 27% change in the undiscounted operating cashflow.
Increasing the overall pit wall slope angle for oxide, from 38º to 45º resulted in a 4% decrease in the cash cost. It is noted that, with the current resource model, the pit shells do not materially extend into the primary rock and thence increasing the overall pit wall slopes for primary rock does not have a materially impact on the optimum pit shell.
The pit optimisation based on the Indicated resources only generated similar results to the pit optimisations based on the total resource.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | | | | |
Figure 18-8 : Summary Pit Optimisation Results CIL Scenarios |
| | | | | Mill Feed | Au Metal | Operating Cashflow 1 | Cashcost | Avg. |
| Base | Total | Waste | Strip | Tonnes | Grade | Insitu | Rec | Undisc. | Discounted @ 10% | Mining |
Description | of Pit | Material | | Ratio | Worst | Best | Avg. | Cost |
| mRL | Mt | Mt | w:o | Mt | g/t | koz | $M | $/oz | $/t |
1.0Mtpa CIL Owner Mining Scenario, based on November 2005 Revised Metallurgical and Geotechnical Parameters - Total Resource, including Inferred |
Au @ $450/oz (Base case) | 155 | 46.5 | 39.9 | 6.0 | 6.6 | 2.7 | 572.1 | 538.7 | 94.2 | 61.1 | 72.6 | 66.9 | 275 | 1.49 |
Au @ $500/oz | 150 | 53.9 | 46.0 | 5.8 | 7.9 | 2.5 | 631.0 | 593.6 | 121.7 | 74.0 | 90.6 | 82.3 | 295 | 1.50 |
Increased slopes - Case 1 2 | 150 | 47.0 | 40.0 | 5.7 | 7.0 | 2.7 | 600.5 | 564.7 | 100.0 | 63.8 | 75.9 | 69.9 | 273 | 1.49 |
Increased slopes - Case 2 3 | 145 | 44.4 | 37.2 | 5.1 | 7.3 | 2.7 | 621.5 | 584.3 | 108.5 | 69.3 | 81.8 | 75.6 | 264 | 1.48 |
Based on Pre-2005 Metallurgical and Geotechnical Parameters - Total Resource, including Inferred |
1.0Mtpa CIL Scenario |
Au @ $450/oz (Base case) | 200 | 20.5 | 16.7 | 4.4 | 3.8 | 2.8 | 341.2 | 323.6 | 55.3 | 42.3 | 46.5 | 44.4 | 279 | 1.99 |
Au @ $500/oz | 175 | 31.3 | 26.4 | 5.4 | 4.9 | 2.7 | 429.2 | 404 | 70.9 | 50.7 | 58.4 | 54.6 | 320 | 2.06 |
Au @ $400/oz | 215 | 16.0 | 12.7 | 3.8 | 3.3 | 2.8 | 300.8 | 285.8 | 40.2 | 31.7 | 34.3 | 33.0 | 259 | 1.95 |
1.5Mtpa CIL Scenario |
Au @ $450/oz (Base case) | 200 | 23.2 | 18.7 | 4.1 | 4.5 | 2.6 | 373.9 | 354.5 | 64.3 | 51.5 | 55.1 | 53.3 | 269 | 1.99 |
Au @ $400/oz | 200 | 20.3 | 16.4 | 4.3 | 3.8 | 2.8 | 341.3 | 323.7 | 47.8 | 39.5 | 41.4 | 40.5 | 252 | 1.99 |
________________________________________
1 - The cashflows, as described above, are exclusive of any capital expenditure or Project start-up costs and should be used for pit optimisation comparison purposes only. No Net Present Value (NPV) can be derived from these cashflows.
- - Worst Case Discounted Operating Cashflow - Each bench is mined out prior to moving to the next bench. The cashflow schedule is the equivalent of top down 'flat' mining.
- - Best Case Discounted Operating Cashflow - Each incremental pit is removed prior to advancing to the next adjacent incremental pit. The cashflow schedule is the equivalent of multiple pushbacks.
- - Average Discounted Operating Cashflow - This is an average of the Worst and Best case discounted operating cashflows and reflects a more realistic mining schedule.
2 40º for oxide and 55º for transition and primary material.
3 45º for oxide and 55º for transitional and primary material
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | | | | | | | | |
Description | | | | | Mill Feed | Au Metal | Operating Cashflow 1 | Cashcost | Avg. |
Base | Total | Waste | Strip | Tonnes | Grade | Insitu | Rec | Undisc. | Discounted @ 10% | Mining |
of Pit | Material | | Ratio | Worst | Best | Avg. | Cost |
mRL | Mt | Mt | w:o | Mt | g/t | koz | $M | $/oz | $/t |
Au @ $500/oz | 175 | 33.7 | 28.1 | 5.0 | 5.6 | 2.5 | 457.5 | 430.7 | 82.4 | 63.3 | 69.7 | 66.5 | 304 | 2.06 |
2.0Mtpa CIL Scenario | | | | | | | | | | | | | | |
Au @ $450/oz (Base case) | 180 | 30.1 | 24.9 | 4.8 | 5.2 | 2.6 | 430.8 | 405.7 | 67.8 | 56.0 | 59.5 | 57.7 | 283 | 2.05 |
Au @ $400/oz | 200 | 20.3 | 16.3 | 4.0 | 4.1 | 2.7 | 347.9 | 329.9 | 50.7 | 43.1 | 45.0 | 44.1 | 246 | 1.99 |
Au @ $500/oz | 175 | 34.2 | 28.4 | 4.9 | 5.8 | 2.5 | 463.1 | 436.0 | 86.4 | 69.8 | 75.0 | 72.4 | 297 | 2.06 |
Based on Pre-2005 Metallurgical and Geotechnical Parameters - Indicated Resources Only | | | | | | | | |
1.0Mtpa CIL Scenario | | | | | | | | | | | | | | |
Au @ $450/oz | 200 | 20.4 | 16.7 | 4.4 | 3.8 | 2.8 | 339.6 | 322.0 | 55.1 | 42.3 | 46.4 | 44.4 | 279 | 1.99 |
1.5Mtpa CIL Scenario | | | | | | | | | | | | | | |
Au @ $450/oz | 200 | 22.4 | 18.0 | 4.1 | 4.4 | 2.6 | 365.9 | 346.9 | 63.9 | 51.7 | 54.8 | 53.2 | 266 | 1.99 |
2.0Mtpa CIL Scenario | | | | | | | | | | | | | | |
Au @ $450/oz | 180 | 29.6 | 24.5 | 4.8 | 5.1 | 2.6 | 424.7 | 399.9 | 67.4 | 55.9 | 59.2 | 57.6 | 282 | 2.06 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 18-9 : Summary Pit Optimisation Results CIL and HL Combined Scenario
Description | | | | | Milling Operation | Heap Leach Operation | Total Au | Operating Cashflow1 | Cashcost | Avg. |
Base of | Total | Over- | Strip | Mill Feed | Au Metal | Heap Leach Feed | Au Metal | Insitu | Rec | Undisc. | Disc @ 10% | Mining |
Pit | Material | burden | Ratio | Tonnes | Grade | Insitu | Rec | Tonnes | Grade | Insitu | Rec | Worst | Best | Avg. | Cost |
mRL | Mt | M | w:o | Mt | g/t | koz | Mt | g/t | koz | koz | $M | $/oz | $/t |
Based on Total Resources |
1.0Mtpa CIL and 1.0Mtpa HL Scenario - Excluding HL Agglomeration |
Au @ $450/oz 2 | 200 | 21.8 | 17.0 | 3.6 | 3.4 | 3.0 | 327.3 | 310.3 | 1.3 | 1.0 | 43 | 25 | 370.5 | 335.4 | 57.2 | 45.2 | 48.0 | 46.6 | 280 | 1.99 |
Rec @ 83% 3 | 175 | 31.3 | 25.4 | 4.3 | 2.6 | 3.4 | 288.3 | 273.9 | 3.3 | 1.5 | 163 | 135 | 451.1 | 409.0 | 69.0 | 53.6 | 58.9 | 56.2 | 281 | 2.06 |
1.0Mtpa CIL and 1.0Mtpa HL Scenario - Including HL Agglomeration |
Au @ $450/oz 4 | 200 | 20.6 | 16.5 | 4.0 | 3.7 | 2.8 | 339.6 | 322.1 | 0.4 | 0.9 | 11.9 | 6.9 | 351.6 | 329.0 | 55.6 | 42.8 | 46.5 | 44.6 | 281 | 200 |
____________________________
1 - The cashflows, as described above, are exclusive of any capital expenditure or Project start-up costs and should be used for pit optimisation comparison purposes only. No Net Present Value (NPV) can be derived from these cashflows.
- - Worst Case Discounted Operating Cashflow - Each bench is mined out prior to moving to the next bench. The cashflow schedule is the equivalent of top down 'flat' mining.
- - Best Case Discounted Operating Cashflow - Each incremental pit is removed prior to advancing to the next adjacent incremental pit. The cashflow schedule is the equivalent of multiple pushbacks.
- - Average Discounted Operating Cashflow - This is an average of the Worst and Best case discounted operating cashflows and reflects a more realistic mining schedule.
2 Fixed costs, comprising G&A, mine supervision and de-watering, were carried 100% by the CIL operation.
3 Fixed costs, comprising G&A, mine supervision and de-watering, were carried equally (50 / 50) by the CIL and HL operations.
4 Fixed costs, comprising G&A, mine supervision and de-watering, were carried 100% by the CIL operation.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
18.6 Mine Production Schedule
An indicative mine production schedule was developed through Whittle Four-X.
For the purpose of the mining study, pit shell 26 of the 1.0Mtpa CIL owner mining scenario that was carried out in November 2005 was selected as the basis for mine production scheduling, thereby extending the mine life to over 7 years. The undiscounted operating cashflow generated by pit shell 26 is within 2% of the undiscounted operating cashflow generated by the optimum pit shell 21 (which generates the maximum undiscounted operating cashflow at a gold price of $450/oz).
In order to emulate a cutback scenario pit shells 2, 13 and 26 were used for the mine production schedule.
Appendix 15 contains a plan view and some representative cross sections showing the cutbacks that were adopted for the schedule.
The scheduling periods adopted for the mine production schedule comprises of years.
It is noted that the mine production schedule described in this section is indicative only and issues such as plant ramp-up, pre-production waste requirements for ROM pad construction, tailings storage starter dam facility, raw water dam etc have not been modelled.
18.6.1 Scheduling Results
The project produces an average of 78,000oz of Au per year ranging from a low of 65,000oz in Year 6 to a high of 94,000oz in Year 7. Year 8, the final year of production, is a part year, estimated at approximately 6 months.
The average total material movement is approximately 8Mtpa, with a maximum mining rate of 9.5Mtpa from Year 3 to Year 5 and a minimum annualised mining rate of 3.2Mtpa in Year 7.
Figure 18-10 summarises the mine production schedule that has been developed for the Belahouro Gold Project.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 18-10 : Summary Mine Production Schedule
| Total | | Low Grade | Strip | Potential Mill Feed | Gold |
Period | Material | Waste 1 | Tonnes | Grade | Ratio | Tonnes | Grade | Insitu | Rec |
Yr | Mt | Mt | Mt | g/t | w:o | Mt | g/t | koz | koz |
1 | 5.3 | 4.3 | 0.2 | 0.7 | 4.3 | 1.0 | 2.5 | 81.5 | 77.4 |
2 | 9.2 | 8.2 | 0.2 | 0.7 | 8.2 | 1.0 | 2.6 | 83.0 | 78.8 |
3 | 9.5 | 8.5 | 0.3 | 0.7 | 8.5 | 1.0 | 2.6 | 82.1 | 78.0 |
4 | 9.5 | 8.5 | 0.3 | 0.7 | 8.5 | 1.0 | 2.8 | 89.5 | 85.0 |
5 | 9.5 | 8.5 | 0.3 | 0.7 | 8.6 | 1.0 | 2.4 | 75.6 | 71.6 |
6 | 8.3 | 7.3 | 0.3 | 0.7 | 7.3 | 1.0 | 2.1 | 68.5 | 64.9 |
7 | 3.2 | 2.2 | 0.1 | 0.7 | 2.2 | 1.0 | 3.2 | 102.0 | 93.6 |
8 | 1.0 | 0.5 | 0.0 | 0.7 | 1.2 | 0.4 | 3.0 | 41.9 | 37.8 |
Totals | 55.4 | 48.0 | 1.6 | 0.7 | 6.5 | 7.4 | 2.6 | 624.1 | 587.0 |
18.7 Mine Design and Equipment
It was assumed that the Belahouro Gold Project will involve a conventional open pit, selective mining exploitation method, adopting either an owner operated fleet or a contract mining scenario.
Drilling and blasting will be performed on 5m high benches, with blasted material excavated by backhoe excavators in two discrete flitches, each nominally of 2.5m height.
The use of RC drilling, assays every 2.5m sample and interpretation of the results by mine geologists is the primary method of grade control envisaged for the Project. Further investigation is warranted with regards to optimising sample length and drill pattern to ensure appropriate statistical methodologies can be utilised to minimise dilution and maximise ore extraction.
A notional drilling pattern of 10.0m x 5.0m was adopted for the study, with 115% of the expected ore zones assumed to be grade control drilled, to ensure sufficient overlap into adjacent low grade or waste such that ore is not missed. All RC holes are assumed to be drilled at a 60º angle.
The mining equipment that is considered to be suitable for the Project would include 120t to 180t backhoe excavators and off-highway haul trucks with a payload capacity of between 60t to 92t.
________________________________
1 Waste is inclusive of low grade material.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The size of equipment would be dependent on the required ore mining selectivity, but also the final selected ore mining rate. It is recommended that a bench height optimization study be carried out to assess mining dilution and recovery control in relation to mining costs.
RSG Global is unaware of any significant aspect of surface drainage affecting the Belahouro Gold Project.
No hydrogeology or hydrology work has been sighted by RSG Global and, as such, groundwater and pit dewatering aspects were not assessed for this study.
18.8 Mining Operation Facilities
The mine is envisaged to operate with either contract mining or as an owner operated fleet. The operational facilities will be kept to a minimum and would comprise of:-
Mine Management
Surveying and grade control Fuel Depot Explosives Storage
The mining contractor will be responsible for provision and maintenance of the mining fleet, offices, housing and messing for his staff.
In the case of owner operation Goldbelt should include for the costs of a mining fleet, housing and messing facilities are included in the plant infrastructure costs.
18.9 Mine Capital Expenditures
In the contract mining scenario the mining is carried out by contractor with equipment supplied by the contractor the mines capital expenditure is limited to computers, software, surveying equipment and light vehicles which are included in the relevant budgets.
In the case of owner operated mining fleet Goldbelt should include for the costs of a mining fleet, housing and messing facilities are included in the plant infrastructure costs.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
18.10 Mine Manpower
The mining company manpower is limited to the following people:-
Mine Manager
Surveyor
Mine Planner
Geologist
Pit Superintendent
Production Geologist
The other functions will be shared with the plant eg samplers, laboratory etc. The mine manpower is included in the plant overall manpower table. Should the mine company opt for an owner operated mining fleet then further staff would be required, drivers, machine operators etc which are not included in the manpower estimates.
18.11 Mine Operating Costs
The mine operating costs (G & A) are included in the processing operating costs.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
19 METALLURGICAL PROCESSING PLANT
19.1 19.1 Metallurgical Test Work Results
In chronological order, the first series of test work is reported in AMMTEC Report A6611 (March 1999). This covers the treatment of four samples of oxide ore from Inata North by gravity concentration then cyanide leaching of the gravity tails. Notes in the margin identify the samples as,
T128827 - Low grade oxide (0-14m)
T128828 - High grade oxide (6-45m)
T128829 - Low grade oxide/trans (48-45m)
T128830 - High grade oxide/trans (61-90m)
Figure 19-1 : Sample Data and Leach Extraction
Sample Data | Total Gold Extraction (%) |
Composite | Grind | Gravity | 2 hours | 4 hours | 8 hours | 24 hours |
T128827 | 106 | 16.2 | 84.4 | 90.4 | 94.5 | 94.5 |
75 | 11.3 | 77.2 | 85.7 | 92.1 | 94.2 |
T128828 | 106 | 14.9 | 91.4 | 94.1 | 95.2 | 96.0 |
75 | 13.9 | 89.4 | 94.5 | 94.5 | 95.9 |
T128829 (O2 sparged) | 106 | 13.0 | 80.6 | 80.6 | 80.6 | 80.6 |
106 | 12.9 | 90.0 | 90.0 | 90.0 | 90.0 |
75 | 8.8 | 82.5 | 82.5 | 84.7 | 86.8 |
T128830 | 106 | 16.8 | 80.9 | 82.9 | 83.6 | 84.4 |
75 | 10.4 | 80.0 | 81.7 | 82.1 | 82.1 |
These results indicate that extraction of 94-95% is achievable from oxide ore while, as might be expected, those from oxide/transition ore were poorer at 82-84%. Sample T128829 was then leached using oxygen rather than air sparging. As a result, an extraction of 90% was achieved in 2 hours as opposed to 80.6% extraction when air was employed.
Viscosity measurements carried out at three levels of slurry density indicated that indicated that a density of about 45% solids should be employed.
The next report, AMMTEC Report A6922 (August 1999), gives details of the testing of shale material for its "preg-robbing" potential. A sample INRD 09, described as barren black shale carbon material, was contacted
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
with a standard gold solution. After 24 hours contact time, the gold content of the solution had been reduced from 1.96 mg/l to 0.075 mg/l, again indicating the material's ability to adsorb gold from solution.
In the next report in the sequence, AMMTEC Report A7029 (December 1999), contains the results of investigations of the potential for "preg-robbing" of the ore. 12 samples of Inata North oxide and transition (INNO-Ox and INNO-Tr) ore and of Inata Central oxide and transition (INCE-Ox and INCE-Tr) ore with visible shale content were hand selected before being contacted with standard gold solution for 6 hours. After 6 hours contact time, all but one of 12 solutions showed a decrease in gold content, indicating that preg robbing had taken place. In two of the tests, the decrease in gold content was > 90%; in four of the tests, the decrease was 50-80%; in three of the tests, the decrease was 30-40% and in two of the tests, the decrease was < 10%.
Three of the samples tested with the standard gold solution were then subjected to a CIL test of 48 hours duration.
Figure 19-2 : Preg-robbing Tests
Sample | INNO OX Tray 1 | INNO TR Tray 2 | INNO TR Tray 3 |
Gold adsorbed in "preg-robbing" test | 92.43 | 99.60 | 37.05 |
Gold extracted in 48 hour CIL test | 58.97 | 32.38 | 77.09 |
There is a degree of correlation between these results, the sample showing the least adsorption in the "preg-robbing" test giving the highest extraction and the sample showing the highest adsorption in the "preg-robbing" test giving the lowest extraction.
Four composites were then made of the material from the trays and these were treated by CIL.
Figure 19-3 : Total Gold Extraction (%) for CIL Tests
Composite | 2 hours | 4 hours | 8 hours | 24 hours | 48 hours |
INCE Oxide | 80.0 | 90.8 | 92.0 | 93.0 | 94.4 |
INCE Trans | 78.1 | 82.9 | 85.7 | 88.0 | 88.9 |
INNO Oxide | 88.2 | 92.6 | 94.2 | 94.9 | 95.2 |
INNO Trans | 53.3 | 61.3 | 68.8 | 77.7 | 81.4 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
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Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The use of CIL gave similar results (94-95%) for the oxide ore as noted in AMMTEC Report A6611. The results from the transition ore at 81-89% covered a greater range than those reported in A6611 but were not dissimilar.
AMMTEC Report A7259 (March 2000) contains the results of Bond Work Index determinations on the four ore types.
Figure 19-4 : Ore Types Bond Work Index
Sample | Wi, kWh/tonne |
INCE Oxide | 16.1 |
INCE Trans | 13.7 |
INNO Oxide | 16.5 |
INNO Trans | 11.5 |
In the next series, the results of which are given in AMMTEC Report A7326 (May 2000), the various process steps found to be beneficial were brought together to simulate the probable flow sheet. The same samples, the results from which were reported in A7029, were treated in this exercise. These tests differed from the A7029 tests in that;-
Since the results given in A 6611, indicated little difference between the results from the two grind sizes, grind of P80 106 µm was used instead of one of P80 75 µm.
Gravity recoverable gold was removed prior to leaching.
Preconditioning of gravity tails with kerosene as this often improves gold extraction by passivating the "preg-robbing" sites of the carbonaceous materials in the ore.
The leach pulp would be sparged with oxygen, since this was found to be beneficial as reported in A6611.
Figure 19-5 : Total Gold Extraction (%) for CIL Tests
Composite | Gravity | 2 hrs | 4 hrs | 8 hours | 16 hrs | 24 hrs | 48 hrs |
INCE Oxide | 25.51 | 74.30 | 82.66 | 87.13 | 88.23 | 89.32 | 91.04 |
| | 80.0 | 90.8 | 92.0 | | 93.0 | 94.4 |
INCE Trans | 10.98 | 70.08 | 77.98 | 82.31 | 84.85 | 85.51 | 86.52 |
| | 78.1 | 82.9 | 85.7 | | 88.0 | 88.9 |
INNO Oxide | 12.53 | 81.27 | 87.92 | 91.14 | 92.15 | 92.34 | 92.64 |
| | 88.2 | 92.6 | 94.2 | | 94.9 | 95.2 |
INNO Trans | 13.70 | 60.86 | 67.95 | 73.54 | 77.04 | 78.69 | 81.15 |
| | 53.3 | 61.3 | 68.8 | | 77.7 | 81.4 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
19.1.1 Results from A7029
In spite of the inclusion of these "improvements", three of the four tests showed slower leach kinetics and lower extraction than the corresponding test, whose results (given in red) were taken from A7029. The fourth test showed faster kinetics initially than the corresponding A7029 test but the latter caught up and finally gave a slightly better extraction. AMMTEC presumes that the poorer results can be attributed to the coarser size use in the tests and they are probably right but the test should be repeated using material ground to P80 of 75µm.
In the final report in the series, AMMTEC Report A8186 (June 2002), the results of tests to compare the use of CIL and RIL are given. Two samples of Inata Central Transition ore composite were pre-conditioned with kerosene before being subjected to RIL, one test using new resin and the other using regenerated resin.
Figure 19-6 : Total Gold Extraction (%)
Composite | 2 hrs | 4 hrs | 8 hrs | 16 hrs | 24 hrs | 48 hrs |
Carbon (A7029 Dec 1999) | 78.10 | 82.86 | 85.67 | Not | 88.02 | 88.90 |
| | | | requested | | |
Regenerated resin | 39.83 | 65.23 | 71.89 | 72.35 | 82.23 | Not |
| | | | | | requested |
New resin | 8.54 | 18.02 | 27.73 | 39.45 | 47.91 | 81.74 |
The resin tests were performed on the same composite as tested in December 1999 but the results were significantly poorer.
19.2 Ore Characterization
In summary, the oxide rock mass is extensively sheared and is expected to be highly weathered and dry.
19.3 Plant Flowsheets
The flow sheets are developed from GBM MEC's knowledge of operations in Burkina Faso from the ROM tip area to the water conserving tailings plant. The plant is designed to be largely self sufficient and accommodate the particular operating conditions within the country of Burkina Faso.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
There are three sets of flow sheets :
One set have been developed to suit the 2million tonnes per annum throughput CIL plant with an optional 1 million tonnes per annum heap leach plant as specified by Goldbelt Resources.
The second set is for a 1 million tonnes per annum CIL plant as specified by Goldbelt Resources.
The third set is for a heap leach plant of 1million tons per annum as specified by Goldbelt Resources.
The plants are designed to handle and treat the three types of ore which will be fed to it.
The plants are designed to operate for 24hours per day, 7 days per week. We envisage a two 12 hour shift operation for the plant. The plant availability will be 92%. The Equipment will be generally as the following descriptions;-
19.3.1 ROM Tip (CIL)
The ROM Tip area will be designed to include a concrete pad and wing aprons with suitable reinforcing for protection from the load out equipment (CAT990G or similar). Ample clearances have been envisaged to allow for ease of manoeuvring. The plant has been designed to accommodate the potentially "clay" oxide ore types expected.
The primary crushing plant is designed to accept ROM oxide ore at -800mm, which is loaded onto the fixed grizzly, and will produce a primary crusher product of -150 mm (nominal size). The plant is shown on Process Flow Diagram 0207CRS8001A
The plant will comprise of the following equipment:
Grizzly - A fixed grizzly with 800 x 500 mm apertures sloping at 20o. Oversize ore will be rolled off of the grizzly and stored on a separate stockpile for breaking by mobile breaker. (Boulder Buster or similar)
ROM Bin - 180 tonne live capacity bin with wear liners and suitable bracing.
Apron Feeder - 1200 mm wide by 9000 mm long heavy duty apron feeder with hydraulic drive inclined at 120 to give better feed control.
Primary Crusher - A size 500 series MMD Mineral Sizer with 7 Tooth wear plate. The sizer is rail mounted to facilitate maintenance. Sufficient room is allowed to substitute the sizer for a jaw crusher at a later date when harder and ores with less clay are encountered. The Jaw Crusher is not included in the capital estimate.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Belt Conveyor - 750 mm wide conveyor accepting the product from the mineral sizer and discharging into the SAG mill. Control of mill feed will be via a belt scale on the conveyor and the hydraulic drive on the Apron Feeder.
Lime Bin and Feeder - A 20 tonne lime silo with rotary valve and screw feeder will be mounted to deliver lime onto the conveyor belt. Control will be via the rotary valve taking a signal from the belt scale on the preceding conveyor. The lime is delivered in 1 tonne bulk bags which are hoisted to the top of the silo for depositing thro the feed funnel. Dust Extraction is provided
19.3.2 Milling (CIL)
The plant is as per Process Flow Diagram 0207CRS8002A
The milling circuit will comprise of the following equipment:-
A 3.4 metre diameter x 5.5 metre long SAG Mill complete with Polymet liners, trommel, lube system, VSD, 650 kW slip ring motor and gearbox. The trommel will screen out the "pebbles" from the mill discharge and feed them onto the pebbles conveyor. The mill will discharge into the common Mill sump.
Mill sump - Mild steel rubber lined with suitable nozzles
Mill discharge pumps - one running and one standby. The discharge from the Mill Discharge Pump will report to the Cyclone. The all metal cyclone feed pumps are set up for variable speed drives.
Cyclone Cluster -4 off Krebs gMAX10 - complete with manifold, isolation valves, pressure gauges and discharge launders. The discharges from the cyclone will report as follows:- The overflow will report to the thickener, the underflow will report to the cyclone underflow screen.
Cyclone Under flow Screen -complete with oversize chute and under pan. The discharge from the screen will report as follows, the oversize will report to the Ball mill and the sized product will report to the concentrator splitter box.
A 2.8 metre diameter x 4metre long Ball Mill complete with Metal liners, Grate discharge, trommel, lube system,750 kW slip ring motor and gearbox. The trommel will screen out the "ball scats" from the mill discharge and feed them into the ball mill scat box. The mill will discharge into the common Mill sump.
Concentrator Splitter Box - the splitter box will ratio the feed of concentrates between the concentrator and the Ball Mill.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Knelson Concentrator model KC-XD48 complete with ICS2.0 computer control and automated piping - the concentrator will concentrate the milled product into a product suitable for sorting on a Gemini Table. The oversize product will be fed into the Ball Mill feed chute.
The Gemini 1000 table, which is housed in the Gold Room, will grade the concentrates further, the sized product reporting to the calcining oven and the oversize pumped back into the Ball Mill feed chute.
The pebbles from the SAG Mill will be collected from the Trommel screen on a 600mm wide belt conveyor and discharged onto a stockpile.
A 600mm wide Reclaim conveyor, manually fed, will take the pebbles back to the SAG Mill feed chute. Allowance will be made in the design for sufficient space to install a suitable crusher in the pebbles circuit at a later date.
The Mill will be serviced by a 15/4tonne capacity overhead crane which will be used for maintenance and ball charging. Ball charging will be carried out directly from the 210 litre steel drums which the balls arrive in. The drum is lifted up by the EOT crane and discharged into the mill feed chute using the tipping device.
19.3.3 Carbon in Leach (CIL)
The Plant is generally as per the process flow diagram 0207CIL8003A and will comprise of the following equipment:-
The cyclone overflow will report to the 1200mm x 2440mm trash screen in the CIL area.
The trash screen will screen off deleterious materials such as woodchips, grasses, roots etc and will be complete with rubber lined under pan and water sprays. The screened product will report to the first of 6 tanks via a Vesin sampler. The screen could be replaced with a fixed sieve bend
Vesin Sampler - the sampler will accept and discharge the product from the trash screen into the CIL tank No 1. The sampler will automatically take a sample from the flow.
CIL Tanks - the 6 tanks will be designed to cascade the leach product down from tank No1 to tank No6, Carbon granules will be pumped from tank No 6 to tank No 5 and thence to tank No 4 and so on, allowing sufficient residence time for the gold to load the carbon.
Each rubber lined tank is 10metres diameter x 11metres high and is equipped with:-
Lightnin 783QT7500 agitators complete with 45 kW drive and gearbox.
SALA - STHM 54W carbon transfer pumps,
Kemix MPS600 interstage screens complete with 7.5kW drive
Sufficient Dart valves and launders to allow each tank to be bypassed and taken off line.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The tanks are furnished with suitable walkways, stairways and access platforms to ensure safe access to each piece of equipment. Maintenance will be by using the mines 60 tonne mobile crane.
Loaded Carbon Screen - 900mm x 1800mm, complete with rubber lined under pan, water sprays and 2Hp vibrating motor. The screen will accept the pumped feed of loaded carbon from tank No 1 and discharge clean loaded carbon into the acid wash column, discharging the washings into tank No1
Carbon Safety screen - 1200mm x 2440mm, complete with rubber lined under pan, water sprays and 3.73kW vibrating motor. The screen will accept the feed of exhausted leachate from tank No 6 and discharge the oversize into a tote bin or bulk bag, the tails will report to the either the vacuum filter feed launder (if dry tailings option is taken) or to the tails thickener (if the conventional thickened tailings route is taken).
Regenerated Carbon Screen, complete with rubber lined under pan and water sprays. The screen will accept the feed from the carbon regeneration pump and discharge the sized regenerated carbon into CIL Tank No 5 or No6, the undersize will be discharged back to the Elution/Transport water Tank.
19.3.3.1 Thickened Tailings Option (CIL)
The tailings will be deposited onto the tailings dam at 60% to 65% w/w. The recovery of this water from the tailings dam may not be a practical proposition due to high losses through evaporation, the cost of installing and operating return water pumps and pipe work have been excluded. The equipment will comprise of :
Hirate Tails thickener - Delkor 22meter diameter complete with rakes, drive and lift mechanisms, thickener shell and all instrumentation. The overflow will report to the process water tank hence reducing the water requirement and effectively reducing the cyanide losses. The underflow will go out to the tailings dam via the underflow pumps.
Thickener Underflow/Tails Pumps - One operating and one standby, the pumps will accept the tailings and pump the product to the tails dam spigots. The pump will be arranged for variable speed operation
19.3.3.2 Dry Tailings Option (CIL)
The tailings will be dry stacked onto the tailings dump at 90%w/w thereby recovering 90% of the water and cyanide.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Disc Filters - 2 off 3200mm x 3656mm disc filters complete with 7.5 kW filter drive, agitator with 7.5kW drive and air knife discharge system.
Filtrate Receivers - 2 off 1500mm diameter x 1800mm high complete with all necessary instrumentation, filtrate pumps with 11 kW drives. The filtrate will be pumped to the process water tank.
Vacuum pumps - 2 off rated at 5280m3/h of air at vacuum condition complete with 132kW drive, separator, water seal system with heat exchanger.
Compressor - 2 off screw type to deliver air for air knife discharge system complete with 2 air receivers, instrumentation and 75kW drive.
Conveyor TLSCV01 will feed the tailings into the 150 tonne capacity bin. The bin is provided with full width clam shell doors to discharge the tailings into the mining fleet dump trucks.
The mining trucks will pick up the tailings from the tailings Bin, after discharging the ore onto the ROM Pad, and will continue on to the tailings ramp. The ramp will be formed by the alternate dumping of waste rock and tailings. A Tracked Dozer will be used to form the ramp from the tailings and waste rock.
The tailings/waste will be back tipped down the ramp edge on day shift, on night shift the trucks will discharge in piles for the dozer to redistribute during the day shift.
19.3.4 Elution / Acid Wash Pressure "Zadra" System (2.5 tonne batch, CIL & Heap Leach)
The plant is generally as per process flow diagram 0207CRG8004 & 5A and will comprise of the following equipment:-
Acid Wash Column which will receive the feed of loaded carbon from the loaded carbon screen and will discharge the loaded carbon, using high pressure water, after it has gone through the acid washing sequence into the elution column. The acid washing is carried out with a dilute acid made up in the acid plant on site. Spillage is sent to the sump. All necessary safety equipment is included.
Elution Column -The loaded washed carbon is subject to "soaking" in a solution of cyanide and caustic in the elution column for a period of time, the pregnant solution is discharged through filters, recovery heat exchanger and is pumped to the electro-winning plant.
Cyanide/Caustic System - The cyanide and caustic solutions will be made up on site and pumped into the mixing tank, which is complete with its own agitator. The mixed solution is pumped into the elution column via the recovery heat exchanger and heater.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The spent carbon will be transported to the carbon regeneration area by high pressure water from the Elution/Transport water tank; periodically the water from the tank is cleaned of carbon fines by passing the water through a pressure filter. The resulting cake is stored.
The equipment is housed within a suitably design structural steel frame with roof cladding to provide shelter against inclement weather.
19.3.5 Carbon Regeneration Area (CIL & Heap Leach)
The plant is generally as per process flow diagram 0207/CRG/8007 and will comprise of the following equipment:-
The spent carbon is pumped from the Elution area onto the dewatering screen (sieve bend), the water is routed back to the transport water tank. The carbon is chuted into the eluted carbon tank.
Carbon Regeneration Kiln rated at 200kg/hour - The carbon is withdrawn from the tank by the kiln screw feeder where further dewatering takes place. The water is routed back to the elution transport water tank. The carbon is heated to a suitable temperature and allowed to "soak" before being discharged into the quench tank.
Carbon Attrition Tank - complete with agitator. Fresh activated carbon is manually loaded into the tank along with fresh water, as the product reaches a suitable mixture and as carbon is required the tank is allowed to discharge into the quench tank.
Quench Tank - Rubber lined mild steel tank which collects the regenerated carbon from the kiln and the fresh carbon as required.
Regenerated carbon pump - SALA STHM PUMP complete with 5.5kW drive pumps the regenerated carbon from the quench tank to the regenerated carbon screen.
The equipment is housed within a suitably design structural steel frame with roof cladding to provide shelter against inclement weather.
19.3.6 Electrowinning and Smelting (CIL & Heap Leach)
The plant is generally as per process flow diagram 0207/STR/8006 and will comprise of the following equipment:-
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Electro-winning Cell complete with rectifier and fume handling system - The pregnant solution will be pumped from the Elution area into the electro-winning cell where it is subject to DC power. The electrolysis cause the gold in solution to form a sludge and the liquor to be driven off. The liquor is discharged into a sump; the sludge is pumped to a filter.
Barren Solution Sump complete with pump - the sump will accept the Barren solution from the cell, the filter press and floor spillage and pump this back to the process water tank.
Gold Sludge Filter- The filter will accept the gold sludge from the electro-winning cell and discharge process water which will report to the sump and the filter cake which will be transferred manually into the calcining oven.
Calcining Oven - The oven will be manually loaded with the filter and/or the concentrate from the Gemini table, and will calcine the gold cake. The cake will be manually loaded into the Dore furnace for smelting. Off gases from the oven will be handled by the fume filter.
A200 tilting Dore Furnace complete with electrical power, controls and hydraulic power pack. The Dore furnace will accept the cake from the calcine oven and with suitable fluxes, added manually, smelt the gold to run into the bullion moulds. The furnaces off gases are collected by the gold room filter. The bullion is manually placed in the strong room for transport to further refining.
The equipment is housed within a suitably design structural steel frame with roof cladding to provide shelter against inclement weather.
19.3.7 Reagents and Consumables ( CIL)
The supply of reagents and services will be generally as indicated on flow sheets 0207/RGT/8009, 0207/RGT/8010, 0207/CRG/8004 and 0207/STR/8005.
Oxygen will be supplied from a self contained PSA plant supplying oxygen at the rate of 250Nm3/hour with a purity of 93% at 5barg. The plant will require an area of 10m x 8m x 5m high.
Cyanide will be delivered in the form of briquettes in bags. The bags will be picked up using an overhead crane and placed in the bag breaker unit, the briquettes will gravitate into the cyanide make up tank where they will be mixed into fresh water. The cyanide solution will be pumped into the leach tank as required.
Caustic soda pearls will be supplied in bags; they will be added by hand into the caustic make up tank. The caustic will be pumped to the elution area where it will be added t the cyanide to make up the required eluent.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Hydrochloric Acid will be added direct from the drums of concentrated acid by a drum pump into the dilute acid tank. The dilute acid will be pumped into the acid wash column.
Flocculant will be supplied in 25kg bags and will be manually added to the flocculant make up tank where it will be automatically made up to the strength required before being pumped to the thickener.
Fresh carbon will be added by hand to the eluted carbon vessel.
19.3.8 ROM Tip, Crushing and Agglomeration (Heap Leach)
The ROM Tip area will be designed to include a concrete pad and wing aprons with suitable reinforcing for protection from the load out equipment (CAT966 or similar). Ample clearances have been envisaged to allow for ease of manoeuvring. The plant has been designed to accommodate the potentially "sticky" oxide ore types expected.
The primary crushing plant is designed to accept ROM oxide ore at -800mm, which is loaded onto the fixed grizzley, and will produce a primary crusher product of -150 mm (nominal size). The plant will comprise of the following equipment;
Grizzley - a fixed grizzley with 800mm x 500mm apertures sloping at 40o.
ROM Bin - 40 tonne live capacity bin with wear liners and suitable bracing.
Apron Feeder - 1200 mm wide by 9000 mm long heavy duty apron feeder with hydraulic drive (the "dribblings" will be manually cleaned up and returned onto the conveyor tail end).
Primary Crusher - A size 500 series MMD Mineral Sizer with 7 Tooth wear plate. The sizer is rail mounted to facilitate maintenance and periods when fine material is encountered. The sizer is inclined at 7.5o to facilitate the rapid rejection of oversize material.
Belt Conveyor - 750 mm wide conveyor accepting the product from the mineral sizer and discharging onto a sizing screen.
Sizing screen - Vibrating screen to scalp off at 12.5 mm to relieve the secondary crusher.
Secondary Crusher - Hazemag 1321 hammer mill to accept the -150 mm and produce a -12.5 mm product. The plant is designed for a capacity of 167 tph (dry) and a maximum of 200 tph for a P80 of -12.5 mm. Some variation in the product size can be expected due to the open circuit configuration.
Belt Conveyor - 750 mm wide conveyor accepting the product from the sizing screen, the secondary crusher and the cement feeder, and discharging into the agglomerating drum.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Cement silo - the silo will be supplied complete with supports, access ladder, inlet filter, screw feeder with variable speed drive and bin activator.
Agglomerator Drum - 3000 mm x 9000 mm complete with drive, loose rubber lining and spray bar.
Reagent system comprising of Cyanide mixing tank c/with agitator, transfer pumps, mixed cyanide holding tank, dosing pumps, spray water tanks and pumps.
Hoists - 10 tonne unit for primary crusher maintenance, 10 tonne unit for secondary crusher maintenance and 0.5 tonne electric hoist for cement loading
19.3.9 Conveying and Stacking (Heap Leach)
The agglomerates will be transported from the agglomerating drum and deposited on the pad using the following equipment :
Overland Belt Conveyor - 600 mm wide x 500 meters long with skid mounted head frame.
Hopper conveyors - up to 10 off 600 mm wide x 35 meter wheeled hopper conveyors.
Transverse conveyor - 1 off 600 mm wide x 20 meter long wheeled transverse conveyor.
Stacker conveyor - 1 off 600 mm wide wheeled horizontal stacker conveyor.
Luffing stacker conveyor - 1 off 600 mm wide wheeled luffing stacker conveyor.
The conveyors will have interconnecting (plug and socket) electrical supply lines and will be suitably braced to allow towing over rough and uneven ground.
19.3.10 Leach Pads
The pad area will be suitable for the stacking of two 10 meter high lifts to an ultimate heap height of 20 meters. To maximise natural drainage of the leachate, each cell is aligned across the natural contours to enable captured leachate to be gravity discharged towards the solution corridor (Figure 19.3.10). Individual cell widths are sized to accommodate a 180° slewing stacker with a 37.5 meter long radial arm. Cell 1 will be 120 meters wide, which is sufficient to retain the full width of the agglomerated ore placed by the 180° stacker, with 10 meters wide buffer zone. Cell 2, and those built later, will be formed 75 meters wide to fully contain the stacked ore when abutting adjacent stacked cells. Individual 1 meter high compacted earthfill berms will be constructed around each cell, to prevent storm water runoff dilution, to confine leachate permeating from the toe of the heap and to facilitate sequential expansion.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
19.3.11 Stacking Pattern
Capital and operational expenditure will be deferred by undertaking staged development of the pads and their associated civil works.
Placement of 4.4 million tonnes of agglomerated ore Stacking to commence in June of year 1 An average production rate of 1mtpa.
Should initial stacking commence in June of Year 1, the first 410 meters long cell will be completed by November of Year 1 and placement onto cell 2 will then commence. A minimum pad area of 80 000 m2 will consequently be required to enable stacking to continue throughout the first wet season. To ensure that sufficient pad area will be available to the mine for future and emergency stacking, construction of cell 3 will commence during October of Year 1. The annual construction programme will then comprise the development of 61 500 m2 (two cells per annum) of pad until a final pad area of some 203 000 m2 is formed.
Figure 19-7 : Heap Leach Pad: Preliminary Civil Works Programme (Double Stacking)
Construction Period | Cells Required |
January to May Year 1 | 1 to 2 |
October Year 1 to February Year 2 | 3 to 4 |
October Year 2 to February Year 3 | 5 to 6 |
Future Capacity | 7 to 8 onwards |
19.3.12 Heap Drainage Reticulation
To intercept and discharge the pregnant and intermediate solutions, a heap drainage system will be installed above the liner comprising:
Graded natural ground profiled to ensure drainage towards the solution corridor.
Natural sub grade ripped and recompacted to a minimum depth of 300 mm, rolled smooth prior to the installation of the HDPE liner.
A 1.5 mm HDPE liner.
A 600 mm thick cushion layer.
A series of 2 metres wide, 600 mm deep trapezoidal longitudinal leachate collection drains containing either 300 mm or 375 mm diameter perforated and solid HDPE pipes within a gravel surround
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
100 mm diameter perforated HDPE pipes placed at 6 metres centres above the cushion layer, gravity discharging to the longitudinal drain
Leachate permeating through the heap will be intercepted by the 100 mm diameter pipes and the longitudinal drains, which will gravity discharge to the solution corridor. The twin longitudinal pipes will be designed to pass up to 200m3/hour of leachate (when flowing at 50% capacity) enabling recovery of pregnant solution from different parts of the heap, optimising heap control.
19.3.13 Solution Corridor layout
Two solution corridor arrangements were initially addressed:
Option 1 - the intermediate, pregnant and excess solution is confined within dedicated open trapezoidal launders.
Option 2 - the intermediate and pregnant solution is confined within dedicated closed pipes, with the excess solution contained within the open launder. The solutions will gravity discharge to the process ponds.
To obviate solution evaporative loss, simplify construction and to improve project economics, Option 2 is recommended for the Inata Mine.
19.3.14 Process Pond Layout
The process ponds will be optimised to store the fluctuating water volumes predicted to occur during high precipitation events, plus variations due to operational management, dead storage and heap drain down. The volume of the ponds will consequently be made up of the following elements:
Normal Operational Volume - based on a process supply period of 2 days at an average abstraction volume of 200 m3/h, the minimum pond operational volume is 10,000 m3.
Dead Storage - due to pumping constraints and mitigation against damage to the liner, the initial 250 mm depth of each pond will not be pumped. The dead storage volume will also accumulate silt, which will require to be removed during annual maintenance operations.
Freeboard - a minimum freeboard of 250 mm should be retained between the invert, the respective overflow weirs and the maximum pond elevation.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Drain down - in the event of an operational power loss and ceszation of solution application, the saturated heap will commence draining. The worst case scenario assumes that two lifts will drain down during a minimum period of two days and report to the intermediate, pregnant and excess water storage ponds.
Average Rainfall minus Evaporation - the average precipitation, minus evaporation, occurring during the wet season months of August and September will be contained within the system.
Storm Event - to mitigate against the process ponds overtopping, each pond is sized to contain the respective run-off reporting to it during the 1 in 100 year, 24 hour storm event. The volume of the excess solution pond is sized to accommodate runoff during the 1 in 100 year storm event reporting from the maximum non-active pad area for the 4 year scheme (approx. 200,000 m2), together with runoff from the excess solution launder and pond catchment area.
Based on process pond preliminary volume calculations the following pond volumes are assumed:
Process water & neutralization pond | 8 000 m3 |
Pregnant pond | 20 000 m3 |
Barren & intermediate pond | 20 000 m3 |
Excess storm water pond | 40 000 m3 |
Barren pond | 10,000 m3 |
The actual volumes and pond layout will require to be evaluated following completion of a full project water balance. All ponds will be formed adjacent to each other to maximise the benefit of common wall construction, build ability, proximity to the pads, solution corridor and operation.
19.3.15 Solution Application System
The two stage irrigation system using barren and intermediate solutions will be operated. The application system will comprise abstraction pumps, main delivery pipe lines aligned along the solution corridor, valves to the secondary and tertiary pipelines with emitters. The spacing of the tertiary pipelines, distribution pipelines and irrigators will be based on the required solution application rate, which for the Inata Mine Project will be 10 l/m2/h. To reduce evaporative losses from the heap during irrigation a drip irrigation system is recommended for Inata, with inline filtration systems to reduce the build up of scale and localised blocking of the irrigators.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
19.3.16 Carbon Columns (Heap Leach)
The solution from the pregnant solution pond will be fed into the column plant which is arranged as a "carousel" type column plant. The plant will comprise of the following equipment:-
6 tanks with connecting launder and pipe work
6 pump cells to transfer solution from one tank, into the following tank via the central launder.
As the carbon in the tank is loaded with gold, the tank is taken off line, the spent solution is pumped to the following tank and the carbon pumped to the acid wash column in the elution plant. Spillage in this area is pumped to the barren solution tank.
19.4 Tailings Impoundment (CIL)
19.4.1 Introduction
The production plan proposed for the Belahouro Gold Project defines tailings disposal requirements for approximately 2.0 Million tonnes per year for a period of 6 years resulting in a total tonnage to be disposed of approximately 12.0 Million tonnes over the life of the project.
A thickened tailings system depositing the thickened slurry at an average density of 1.6 tonne per cubic meter would require a volumetric dam capacity of approximately 7.5 million cubic meters.
A dry stack system stacking tailings at an average density of 1.8 tonnes per cubic meter would require a stack volume of 6.67 million cubic meters.
The more traditional tailings slurry deposition with an average density of 1.35 tonnes per cubic meter would require a dam volume of approximately of 8.9 million cubic meters.
There are two methods of tailings disposal which we have considered for this project each system has advantages and disadvantages in terms of cost and flexibility of operation. Each system depends on testwork to prove its operational viability.
We have not been able to conduct this test work and have not had sufficient time to fully evaluate or price each option.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
19.4.2 Dry Tailings System (CIL)
This system optimises the water and cyanide recovery of the tailings system and requires a disc filter plant. This would produce a filter cake with 10 % moisture which would be disposed of by trucking.
The stack would be in the order of 20 meters high x 970 meters/annum, the section through would measure 104meters on the base to 53 meters on the top
We have assumed a maximum height of 20 meters is allowable in terms of stability and by the government mining department. At 20 meters the machine will be levelled out and deposition will continue advancing at the rate of 88mm per hour. For each year a length of 963meters will be required. We have assumed that the residue of cyanide remaining on the tails after filtration is not significant.
19.4.3 Tailings Dam (Thickened Tailings)
The system we have considered goes some way to recover water and cyanide by the use of a Hirate thickener followed by pumping the tails out to the dam at around 65% solids. We have assumed the various properties of the slurry are satisfactory for the employment of this system.
For the full life of mine we would require an area of 600 meters x 600 meters x 20 meters high. This is included on our capital estimate T2
The proposed tailings impoundment will be formed by the construction of four (4) embankments raised in stages to satisfy deposition requirements. Stage 1 of construction will ensure sufficient deposition capacity for a total of two (2) years of tailings deposition.
The impoundment will be formed by the containment walls creating a paddock style tailings facility with deposition taking place on the periphery such that the supernatant pond formed is kept towards the centre of the facility, minimising loss of water through seepage and increasing the overall stability of the containment walls.
The general geometry of the proposed starter dam embankment has been designed and located in order to allow further raises of the embankment to the proposed final crest elevation using the downstream method of construction. The main body of the dam embankment will be constructed using compacted waste rock. The construction material will be sourced from the mine overburden waste excavation which will generate over the life of the mine quantities of material in excess of those required by the tailings facility construction.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The impoundment base will be formed by lateritic material ripped and compacted in situ to minimise permeability and through this limit the loss of water and the risk of potential contamination of the ground and groundwater resources in the area. The final characteristics of the liner system have not yet been finalised and will depend on the regulatory framework applied to the project and other statutory requirements.
Further to the liner system, the impoundment will be provided with a drainage system to allow for the consolidation of the deposited tailings and to improve the capacity of the facility. The drainage system will discharge seepage collected into a HDPE lined pond return water system such that seepage can be returned to the processing plant for recycling or pumped back to the tailings facility.
Prior to the construction of the embankment dams and the lining of the impoundment, site preparation will take place including the removal of bushes and the excavation of topsoil. It is envisaged that any topsoil available will be excavated and stored for use in future rehabilitation work of the facility.
Figure 31-33 shows the relative location of the options being considered for the tailings disposal facility in relation with the proposed mine infrastructure.
The following sections describe in more detail the design of the different options for both the embankment and the impoundment area.
In total six options were identified for review, inspected, and formally assessed with respect to the following political, social, environmental and technical characteristics:
geological/hydro-geological factors;
geotechnical factors;
area requirements;
topography;
distance from a likely plant site;
proximity to future mineralization accessibility;
impact on the natural environment;
Impact on social environment/position of the local communities.
The location of the sites addressed is shown on Figure 31-33; Table 19.8 below presents the volumetric calculations for year on year construction and deposition volumes to satisfy production requirements for the project.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 19-8 : Volumetric Calculations - Paddock TMF
Year/Period | Confining Wall Material Required (m3) | Storage Capacity Created (m3) |
0 | 92 400 | 1 274 782 |
1 | 34 664 | 1 313 089 |
2 | 35 728 | 1 351 960 |
3 | 36 792 | 1 391 398 |
4 | 37 856 | 1 431 403 |
5 | 38 920 | 1 471 975 |
Total | 276 360 | 8 234 607 |
Based on the design presented in the figures and the volumetric calculations, an estimate of capital costs requirements for the year/period 0 (pre deposition works) has been prepared. The cost estimation assumes that the lateritic material for the construction of the low permeability embankment, and its subsequent raises, will be sourced form laterite excavated as part of the stripping operations in the open pits.
Other costs and materials have been estimated to pre feasibility level (±40%) as there is little or no information on rates for this type of work in Burkina Faso.
Table 19-9 below presents the construction cost estimate for the Paddock TMF option.
Figure 19-9 : Cost Estimation - Paddock TMF Option
Item | Unit | Quantity | Rate | Amount (US$) |
Site clearance | Ha | 17 | $2,600.00 | $44,200.00 |
Starter Dam Construction | m3 | 92 400 | $2.50 | $231,000.00 |
Impoundment Preparation | m2 | 360 000 | $0.15 | $54,000.00 |
Return Water System | ps | 1 | $50,000.00 | $50,000.00 |
Seepage collection system & return | m2 | 2 500 | $15.00 | $37,500.00 |
Subtotal | | | | $416,700.00 |
15% Unmeasured items | | | | $62,505.00 |
15% P&G's | | | | $62,505.00 |
Total Estimated Cost | | | | $541,710.00 |
The optimum deposition sites for the long-term TMF facility, with respect to minimum environmental impact, land use, proximity of mine infrastructure and pre-deposition costs is located to the west of Inata Central Pit,
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
west of a natural indurate Lateritic hill at approximate co-ordinated of 681750E, 1588000N (UTM 30). This area is a distance away from the village of Inata and the direction of the Harmatan winds would pick up the tailings and blow directly away from the mining and process operations.
To minimise the potential land use co-disposal of both stripped overburden and process solids, has been considered and incorporated in either tailings deposition solution.
19.4.4 Recommendations
This area of the plant requires further study to determine the most economical method of handling the tailings with respect to water usage, reclamation of cyanide and legal deposition of tailings. The estimates T1 and T2 show a disparity in capital and a reduction in working costs but the influence of the potential water supply and the savings in cyanide have not been considered due to time constraints.
19.5 Processing Water Supply
Two alternative water abstraction options have been briefly reviewed with the potential to provide water to the CIL process plant i.e.:
Localsurface impoundment
Groundwater Aquifer
There are three possible surface impoundment sites which have been identified for the installation of barrages to form a dam to catch the seasonal rainfall sufficient for the plants requirement. The sites are:-
19.5.1 Sona Barrage
The site at Sona is one of the proposed sites, the land is primarily very flat and at present there is ponding which borders on to the village of Fillio. The catchment area for the barrage is approximately 1 Million m2 and the inundated area at full supply level (5 m depth) is estimated at 1915 hectares with an impounded volume of 24 Million m3.
There are three major issues to building suitable barrages to raise the water level by 5 meters.
The villages of Fillio and Sona would have to be resettled with all the attendant costs and probable delays.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The evaporation rate is an imponderable, generally because of the vast area required. A 10 km long pipeline and extraction point is required.
The proposed site for the Sona Barrage is presented in Figure 31-34, including the potential inundation area.
19.5.2 Bouro Barrage
The site at Bouro has similar characteristics to that at Sona, the land is primarily flat and a vast area is required for the impoundment, which encompasses Bouro.
There are three issues with building suitable barrages to raise the water level by 5 meters.
The village at Bouro, which is quite extensive, would have to be resettled with all the attendant compensation costs and probable delays.
The evaporation rate is an imponderable, generally because of the vast area required.
A 15km long pipeline and extraction point is required.
The proposed site for the Bouro Barrage is presented in Figure 31-35, including the potential inundation area.
19.5.3 Mormossal Barrage
The site at Mormossal has similar characteristics to that at Sona and Bouro, the land is primarily flat and a vast area is required for the impoundment, the largest of the three barrage inundation areas. The catchment area for the barrage is approximately 2.5 Million m2 and the inundated area at full supply level (4 m depth) is estimated at 3384 hectares with an impounded volume of 71.2 Million m3. There are four major issues to building suitable barrages to raise the water level by 4 meters.
The village of Fillio would have to be resettled with all the attendant costs and probable delays.
The village of Sono is impacted by the impoundment it is however likely the effect will be minimal.
The evaporation rate is an imponderable, generally because of the vast area required.
A 15 km long pipeline and extraction point is required.
The proposed site for the Mormossal Barrage is presented in Drawing 0207GEN1206A, including the potential inundation area.
The advantages of the Mormssal barrage over the Sona barrage is that the maximum elevation of 284masl is 2 m below that developed by Sona hence the impact on the Sona may be reduced or negated. The dis advantage
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
is longer pumping distance, larger impoundment area, increased potential for the generation and accumulation of runoff sediments and threat to Belahouro.
19.5.4 Groundwater Aquifer
The proposed site is located some 40 Km north of the Inata site at the Ninga aquifer, within the sedimentary rocks.
No pump tests are available to date and therefore there is no certainty on the suitability of the aquifer to satisfy the project water supply requirements. It is however felt that this would give the more robust solution to the water supply problem.
The proposed well field is located in the approximate coordinates 682000E, 1627000N and will require a 40 Km long HDPE or steel pipeline for the pumping of water as well as a 3 m wide non surface access track. It is estimated that the pipe will require to be supported above ground.
19.5.5 Recommendations
We would suggest that the way forward for this area of the project is the drilling and testing of three boreholes and a full hydrological and geotechnical study based on the borehole results.
19.6 Processing Plant Support Facilities
The processing plant support facilities will comprise of the following buildings, the plant and the support buildings will be within a high security fenced area:-
19.6.1 Security Control Room
Entrance and exit to the plant will be only gained through this building; the building is equipped with turnstile access, search cubicles and two offices for security personnel. Searches will be conducted on a random basis
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
19.6.2 Change House
This building will be set out with a clean and dirty side change rooms, with showers and toilet facilities for male and female employees. The change rooms are equipped with suitable locker facilities for storage of employee's clean clothes and personnel effects. The change house will have a laundry facility to avoid clothing being taken out of the secure area. The change house will also have a kitchen with messing facility for the employees within the process plant, food storage and preparation will be at the camp kitchen.
19.6.3 Plant Workshop and Stores
The plant workshop and stores will be separate from the process plant but will provide all necessary breakdown and light maintenance support for the process plant (mechanical, electrical and instrumentation). The workshop is designed to enable the repair of small plant and pumps requiring part replacements, more complex repairs will go to the main workshop. The workshop will have a store keeping small parts only.
19.6.4 Laboratory
The assay laboratory will analyse samples from the whole mining operation from exploration to gold analysis (AAS), the laboratory will have sample preparation area, wet chemical facilities, fire assaying room, storeroom, washroom and office.
The laboratory will have all equipment serviced by suitable dust and fume extraction units.
19.7 Gold Recovery
The gold recoveries quoted in the relatively small amount of test work available are extremely conservative and should be easily achieved. We would consider that these recoveries could be elevated to more realistic levels which again should be achievable if not if not surpassed. These will be confirmed with the latest round of test work. The values used for this study are:-
Figure 19-8 : Summary Processing Recoveries
Item | | Unit | GBM range | Adopted for Whittle 4X |
CIL | - Oxide | | 94.5 - 96.0 | 95 |
| - Transition | % | 85.0 - 91.0 | 91 |
| - Primary | | 83.0 - 90.0 | 90 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
HL | - All material types | % | 55 - 58 | 58 |
19.8 Capital Costs
Figures 19-11 to 19-16 presents the direct costs for the process plant and its installation including import duty and taxes. The process plant equipment, support structure and installation costs for the wet tailings system is $21,008,955. The process plant equipment, support structure and installation costs for the dry tailings system is $26,255,485. The mobile plant required for the plant is included in the infrastructure budget.
Figure 19-9 : Capital Cost Estimate Summary Level 3. 2MTPA (Wet Tailings)
Cost Area | Quantity | Unit | Rate | US$ |
Process Plant | | | | $17,461,226.00 |
ROM Pad Bulk Fill & Site Earthworks | | Allowance | | $100,000.00 |
CRS | | Lump sum | | $11,015,488.00 |
CIL | | Lump sum | | $1,954,983.00 |
ADR | | Lump sum | | $1,774,384.00 |
Services, Oxygen Plant | | Lump sum | | $1,278,712.00 |
Electrics | | Lump sum | | $612,667.00 |
Reagents, w/shop & stores | | Lump sum | | $195,196.00 |
Tools & Construction Consumables | | Lump sum | | $79,796.00 |
Foundations & construction costs | | Lump sum | | $450,000.00 |
Transport | | Lump sum | | Incl. above |
Contingency | | | 10.0% | $1,746,123.00 |
Tailings Dam (incl. duties, taxes & fees) | | | | $629,205.00 |
Dams | 1 | Lot | $416,700.00 | $416,700.00 |
Detailed Design | 1 | Lot | $50,000.00 | $50,000.00 |
Site supervision | 1 | Lot | $100,000.00 | $100,000.00 |
Preliminary and General | 1 | Lot | 15.0% | $62,505.00 |
Contingency | | | 15.0% | $62,505.00 |
Site Distributables | | | | $137,855.00 |
Temp' Buildings, furniture, A/C's | 1 | Lot | $14,000.00 | $14,000.00 |
Construction cement | 410 | t | $200.00 | $82,000.00 |
Crushed Aggregate | 672 | m3 | $10.00 | $6,720.00 |
Construction Sand | 787 | m3 | $19.23 | $15,135.00 |
Fencing | 1 | Lot | $10,000.00 | $10,000.00 |
Local Fees | 1 | Lot | $10,000.00 | $10,000.00 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Contingency | | | 10.0% | $13,785.00 |
Spares | | | | $523,837.00 |
Consumable (% of Plant Total Capex) | 2 | % | | $349,225.00 |
Insurance (% of Plant Total Capex) | 1 | % | | $174,612.00 |
Contingency | | | 1.0% | $5,238.00 |
First Fill & Reagents Stocks | | | | $216,473.00 |
Carbon (Incl. duties, transport & fees) | 30 | t | $2,040.00 | $61,200.00 |
Workshop supplies (Incl. duties, transport & fees) | 1 | lot | $20,000.00 | $20,000.00 |
Reagent Stocks (Incl. duties, transport & fees) | 2 | mth | | $135,273.00 |
Cyanide | 40.0 | t | $993.00 | $79,423.00 |
Caustic | 4.2 | t/m | $451.00 | $3,792.00 |
Acid | 3.5 | t/m | $267.00 | $1,869.00 |
Heating Fuel | 16.8 | t/m | $412.00 | $13,863.00 |
Carbon | 8.0 | t/m | $2,040.00 | $32,637.00 |
Other | 0.8 | t/m | $2,213.00 | $3,689.00 |
Contingency | | | 10.0% | $21,647.00 |
| | | | |
Plant Import Duty, PSI & Service Fees | | | | $1,259,290.00 |
Contingency | | | 0.0% | - |
Subtotal Processing | | | | $20,227,886.00 |
Figure 19-10 : Capital Cost Estimate Summary Level 3 2MTPA (Dry Stack)
Cost Area | Quantity | Unit | Rate | US$ |
Processing | | | | |
Process Plant | | | | $17,973,452.00 |
ROM Pad Bulk Fill & Site Earthworks | | Allowance | | $100,000.00 |
CRS | | Lump sum | | $11,533,805.00 |
CIL | | Lump sum | | $1,906,758.00 |
ADR | | Lump sum | | $1,774,384.00 |
Services, Oxygen Plant | | Lump sum | | $1,320,845.00 |
Electrics | | Lump sum | | $612,667.00 |
Reagents, w/shop & stores | | Lump sum | | $195,196.00 |
Tools & Construction Consumables | | Lump sum | | $79,796.00 |
Foundations & construction costs | | Lump sum | | $450,000.00 |
Transport | | Lump sum | | Incl. above |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Contingency | | | 10.0% | $1,797,345.00 |
Tailings Dump (including duties, taxes & fees) | | | | $152,750.00 |
Ramp | 1 | Lot | $102,200.00 | $102,200.00 |
Detailed Design | 1 | Lot | $5,000.00 | $5,000.00 |
Site supervision | 1 | Lot | $10,000.00 | $15,000.00 |
Preliminary and General | 1 | Lot | 25.0% | $30,550.00 |
Contingency | | | 10.0% | $15,275.00 |
Site Distributables | | | | $137,855.00 |
Temp' Buildings, furniture, A/C's | 1 | Lot | $14,000.00 | $14,000.00 |
Construction cement | 410 | t | $200.00 | $82,000.00 |
Crushed Aggregate | 672 | m3 | $10.00 | $6,720.00 |
Construction Sand | 787 | m3 | $19.23 | $15,135.00 |
Fencing | 1 | Lot | $10,000.00 | $10,000.00 |
Local Fees | 1 | Lot | $10,000.00 | $10,000.00 |
Contingency | | | 10.0% | $13,785.00 |
Spares | | | | $539,204.00 |
Consumable (% of Plant Total Capex) | 2 | % | | $359,469.00 |
Insurance (% of Plant Total Capex) | 1 | % | | $179,735.00 |
Contingency | | | 1.0% | $5,392.00 |
First Fill & Reagents Stocks | | | | $216,473.00 |
Carbon (Incl. duties, transport & fees) | 30 | t | $2,040.00 | $61,200.00 |
Workshop supplies (Incl. duties, transport & fees) | 1 | lot | $20,000.00 | $20,000.00 |
Reagent Stocks (Incl duties, transport & fees) | 2 | mth | | $135,273.00 |
Cyanide | 40.0 | t | $993.00 | $79,423.00 |
Caustic | 4.2 | t/m | $451.00 | $3,792.00 |
Acid | 3.5 | t/m | $267.00 | $1,869.00 |
Heating Fuel | 16.8 | t/m | $412.00 | $13,863.00 |
Carbon | 8.0 | t/m | $2,040.00 | $32,637.00 |
Other | 0.8 | t/m | $2,213.00 | $3,689.00 |
Contingency | | | 10.0% | $21,647.00 |
| | | | |
Plant Import Duty, PSI & Service Fees | | | | $1,307,012.00 |
Contingency | | | 0.0% | - |
Subtotal Processing | | | | $20,326,745.00 |
Figure 19-13 : Capital Cost Estimate Summary Level 3. 1.5MTPA (Wet Tailings)
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Cost Area | Quantity | Unit | Rate | US$ |
Process Plant | | | | $13,188,016.00 |
ROM Pad Bulk Fill & Site Earthworks | | Allowance | | $100,000.00 |
CRS | | Lump sum | | $7,186,564.00 |
CIL | | Lump sum | | $1,688,136.00 |
ADR | | Lump sum | | $1,596,946.00 |
Services, Oxygen Plant | | Lump sum | | $1,278,712.00 |
Electrics | | Lump sum | | $612,667.00 |
Reagents, w/shop & stores | | Lump sum | | $195,196.00 |
Tools & Construction Consumables | | Lump sum | | $79,796.00 |
Foundations & construction costs | | Lump sum | | $450,000.00 |
Transport | | Lump sum | | Incl. above |
Contingency | | | 10.0% | $1,318,802.00 |
Tailings Dam (incl. duties, taxes & fees) | | | | $629,205.00 |
Dams | 1 | Lot | $416,700.00 | $416,700.00 |
Detailed Design | 1 | Lot | $50,000.00 | $50,000.00 |
Site supervision | 1 | Lot | $100,000.00 | $100,000.00 |
Preliminary and General | 1 | Lot | 15.0% | $62,505.00 |
Contingency | | | 15.0% | $62,505.00 |
Site Distributables | | | | $137,855.00 |
Temp' Buildings, furniture, A/C's | 1 | Lot | $14,000.00 | $14,000.00 |
Construction cement | 410 | t | $200.00 | $82,000.00 |
Crushed Aggregate | 672 | m3 | $10.00 | $6,720.00 |
Construction Sand | 787 | m3 | $19.23 | $15,135.00 |
Fencing | 1 | Lot | $10,000.00 | $10,000.00 |
Local Fees | 1 | Lot | $10,000.00 | $10,000.00 |
Contingency | | | 10.0% | $13,785.00 |
Spares | | | | $395,640.00 |
Consumable (% of Plant Total Capex) | 2 | % | | $263,760.00 |
Insurance (% of Plant Total Capex) | 1 | % | | $131,880.00 |
Contingency | | | 1.0% | $3,956.00 |
First Fill & Reagents Stocks | | | | $216,473.00 |
Carbon (Incl. duties, transport & fees) | 30 | t | $2,040.00 | $61,200.00 |
Workshop supplies (Incl. duties, transport & fees) | 1 | lot | $20,000.00 | $20,000.00 |
Reagent Stocks (Incl. duties, transport & fees) | 2 | mth | | $135,273.00 |
Cyanide | 40.0 | t | $993.00 | $79,423.00 |
Caustic | 4.2 | t/m | $451.00 | $3,792.00 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Acid | 3.5 | t/m | $267.00 | $1,869.00 |
Heating Fuel | 16.8 | t/m | $412.00 | $13,863.00 |
Carbon | 8.0 | t/m | $2,040.00 | $32,637.00 |
Other | 0.8 | t/m | $2,213.00 | $3,689.00 |
Contingency | | | 10.0% | $21,647.00 |
| | | | |
Plant Import Duty, PSI & Service Fees | | | | $890,424.00 |
Contingency | | | 0.0% | - |
Subtotal Processing | | | | $15,457,614.00 |
| | | | |
| | | | |
Figure 19-14: Capital Cost Estimate Summary Level 3 1.5MTPA (Dry Stack) |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Processing | | | | |
Process Plant | | | | $13,825,174.00 |
ROM Pad Bulk Fill & Site Earthworks | | Allowance | | $100,000.00 |
CRS | | Lump sum | | $7,186,564.00 |
CIL | | Lump sum | | $2,325,293.00 |
ADR | | Lump sum | | $1,596,946.00 |
Services, Oxygen Plant | | Lump sum | | $1,278,712.00 |
Electrics | | Lump sum | | $612,667.00 |
Reagents, w/shop & stores | | Lump sum | | $195,196.00 |
Tools & Construction Consumables | | Lump sum | | $79,796.00 |
Foundations & construction costs | | Lump sum | | $450,000.00 |
Transport | | Lump sum | | Incl. above |
Contingency | | | 10.0% | $1,382,517.00 |
Tailings Dump (including duties, taxes & fees) | | | | $122,200.00 |
Ramp | 1 | Lot | $277,839.00 | $102,200.00 |
Detailed Design | 1 | Lot | $5,000.00 | $5,000.00 |
Site supervision | 1 | Lot | $10,000.00 | $15,000.00 |
Preliminary and General | 1 | Lot | 15.0% | |
Contingency | | | 10.0% | $18,330.00 |
Site Distributables | | | | $137,855.00 |
Temp' Buildings, furniture, A/C's | 1 | Lot | $14,000.00 | $14,000.00 |
Construction cement | 410 | t | $200.00 | $82,000.00 |
Crushed Aggregate | 672 | m3 | $10.00 | $6,720.00 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Construction Sand | 787 | m3 | $19.23 | $15,135.00 |
Fencing | 1 | Lot | $10,000.00 | $10,000.00 |
Local Fees | 1 | Lot | $10,000.00 | $10,000.00 |
Contingency | | | 10.0% | $13,785.00 |
Spares | | | | $414,755.00 |
Consumable (% of Plant Total Capex) | 2 | % | | $276,503.00 |
Insurance (% of Plant Total Capex) | 1 | % | | $138,252.00 |
Contingency | | | 1.0% | $4,148.00 |
First Fill & Reagents Stocks | | | | $216,473.00 |
Carbon (Incl. duties, transport & fees) | 30 | t | $2,040.00 | $61,200.00 |
Workshop supplies (Incl. duties, transport & fees) | 1 | lot | $20,000.00 | $20,000.00 |
Reagent Stocks (Incl duties, transport & fees) | 2 | mth | | $135,273.00 |
Cyanide | 40.0 | t | $993.00 | $79,423.00 |
Caustic | 4.2 | t/m | $451.00 | $3,792.00 |
Acid | 3.5 | t/m | $267.00 | $1,869.00 |
Heating Fuel | 16.8 | t/m | $412.00 | $13,863.00 |
Carbon | 8.0 | t/m | $2,040.00 | $32,637.00 |
Other | 0.8 | t/m | $2,213.00 | $3,689.00 |
Contingency | | | 10.0% | $21,647.00 |
| | | | |
Plant Import Duty, PSI & Service Fees | | | | $890,424.00 |
Contingency | | | 0.0% | - |
Subtotal Processing | | | | $15,606,881.00 |
| | | | |
| | | | |
Figure 19-15 : Capital Cost Estimate Summary Level 3. 1MTPA (Wet Tailings) |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Process Plant | | | | $10,676,800.00 |
ROM Pad Bulk Fill & Site Earthworks | | Allowance | | $100,000.00 |
CRS | | Lump sum | | $5,030,684.00 |
CIL | | Lump sum | | $1,510,238.00 |
ADR | | Lump sum | | $1,419,407.00 |
Services, Oxygen Plant | | Lump sum | | $1,278,712.00 |
Electrics | | Lump sum | | $612,667.00 |
Reagents, w/shop & stores | | Lump sum | | $195,196.00 |
Tools & Construction Consumables | | Lump sum | | $79,796.00 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Cost Area | Quantity | Unit | Rate | US$ |
Foundations & construction costs | | Lump sum | | $450,000.00 |
Transport | | Lump sum | | Incl. above |
Contingency | | | 10.0% | $1,067,680.00 |
Tailings Dam (incl. duties, taxes & fees) | | | | $629,205.00 |
Dams | 1 | Lot | $416,700.00 | $416,700.00 |
Detailed Design | 1 | Lot | $50,000.00 | $50,000.00 |
Site supervision | 1 | Lot | $100,000.00 | $100,000.00 |
Preliminary and General | 1 | Lot | 15.0% | $62,505.00 |
Contingency | | | 15.0% | $62,505.00 |
Site Distributables | | | | $137,855.00 |
Temp' Buildings, furniture, A/C's | 1 | Lot | $14,000.00 | $14,000.00 |
Construction cement | 410 | t | $200.00 | $82,000.00 |
Crushed Aggregate | 672 | m3 | $10.00 | $6,720.00 |
Construction Sand | 787 | m3 | $19.23 | $15,135.00 |
Fencing | 1 | Lot | $10,000.00 | $10,000.00 |
Local Fees | 1 | Lot | $10,000.00 | $10,000.00 |
Contingency | | | 10.0% | $13,785.00 |
Spares | | | | $320,304.00 |
Consumable (% of Plant Total Capex) | 2 | % | | $213,536.00 |
Insurance (% of Plant Total Capex) | 1 | % | | $106,768.00 |
Contingency | | | 1.0% | $3,203.00 |
First Fill & Reagents Stocks | | | | $216,473.00 |
Carbon (Incl. duties, transport & fees) | 30 | t | $2,040.00 | $61,200.00 |
Workshop supplies (Incl. duties, transport & fees) | 1 | lot | $20,000.00 | $20,000.00 |
Reagent Stocks (Incl. duties, transport & fees) | 2 | mth | | $135,273.00 |
Cyanide | 40.0 | t | $993.00 | $79,423.00 |
Caustic | 4.2 | t/m | $451.00 | $3,792.00 |
Acid | 3.5 | t/m | $267.00 | $1,869.00 |
Heating Fuel | 16.8 | t/m | $412.00 | $13,863.00 |
Carbon | 8.0 | t/m | $2,040.00 | $32,637.00 |
Other | 0.8 | t/m | $2,213.00 | $3,689.00 |
Contingency | | | 10.0% | $21,647.00 |
| | | | |
Plant Import Duty, PSI & Service Fees | | | | $675,596.00 |
Contingency | | | 0.0% | - |
Subtotal Processing | | | | $12,656,233.00 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| |
Figure 19-16: Capital Cost Estimate Summary Level 3 1MTPA (Dry Stack) |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Processing | | | | |
Process Plant | | | | $11,549,428,.00 |
ROM Pad Bulk Fill & Site Earthworks | | Allowance | | $100,000.00 |
CRS | | Lump sum | | $5,030,684.00 |
CIL | | Lump sum | | $2,298,425.00 |
ADR | | Lump sum | | $1,503,947.00 |
Services, Oxygen Plant | | Lump sum | | $1,278,712.00 |
Electrics | | Lump sum | | $612,667.00 |
Reagents, w/shop & stores | | Lump sum | | $195,196.00 |
Tools & Construction Consumables | | Lump sum | | $79,796.00 |
Foundations & construction costs | | Lump sum | | $450,000.00 |
Transport | | Lump sum | | Incl. above |
Contingency | | | 10.0% | $1,154,943.00 |
Tailings Dump (including duties, taxes & fees) | | | | $122,200.00 |
Ramp | 1 | Lot | $102,200.00 | $102,200.00 |
Detailed Design | 1 | Lot | $5,000.00 | $5,000.00 |
Site supervision | 1 | Lot | $15,000.00 | $15,000.00 |
Preliminary and General | 1 | Lot | 15.0% | |
Contingency | | | 15.0% | $18,330.00 |
Site Distributables | | | | $137,855.00 |
Temp' Buildings, furniture, A/C's | 1 | Lot | $14,000.00 | $14,000.00 |
Construction cement | 410 | t | $200.00 | $82,000.00 |
Crushed Aggregate | 672 | m3 | $10.00 | $6,720.00 |
Construction Sand | 787 | m3 | $19.23 | $15,135.00 |
Fencing | 1 | Lot | $10,000.00 | $10,000.00 |
Local Fees | 1 | Lot | $10,000.00 | $10,000.00 |
Contingency | | | 10.0% | $13,785.00 |
Spares | | | | $346.483.00 |
Consumable (% of Plant Total Capex) | 2 | % | | $230,989.00 |
Insurance (% of Plant Total Capex) | 1 | % | | $115,494.00 |
Contingency | | | 1.0% | $3,465.00 |
First Fill & Reagents Stocks | | | | $216,473.00 |
Carbon (Incl. duties, transport & fees) | 30 | t | $2,040.00 | $61,200.00 |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
Cost Area | Quantity | Unit | Rate | US$ |
Workshop supplies (Incl. duties, transport & fees) | 1 | lot | $20,000.00 | $20,000.00 |
Reagent Stocks (Incl duties, transport & fees) | 2 | mth | | $135,273.00 |
Cyanide | 40.0 | t | $993.00 | $79,423.00 |
Caustic | 4.2 | t/m | $451.00 | $3,792.00 |
Acid | 3.5 | t/m | $267.00 | $1,869.00 |
Heating Fuel | 16.8 | t/m | $412.00 | $13,863.00 |
Carbon | 8.0 | t/m | $2,040.00 | $32,637.00 |
Other | 0.8 | t/m | $2,213.00 | $3,689.00 |
Contingency | | | 10.0% | $21,647.00 |
| | | | |
Plant Import Duty, PSI & Service Fees | | | | $683,370.00 |
Contingency | | | 0.0% | - |
Subtotal Processing | | | | $13,055,809.00 |
19.9 Plant Personnel
19.9.1 Manpower &Training
All staff will undergo a mandatory safety induction prior to entering site. Once an appointee has been selected for a position a suitably competent person will train that employee, no person will be allowed to perform work for which they have not received training.
Regular refresher training will be provided and will be conditional on returning from leave or long absence.
All plant operations will be subject to the laws of Burkina Faso pertaining to the employment and training of personnel.
Preference will be given to the recruitment of local labour, particular skills being sourced from the whole of Burkina Faso as necessary. Manpower of other nationalities will only be employed where it is not possible to recruit a Burkinabe who possesses the qualifications and competencies required for a particular job. It will be a policy to train and upgrade Burkinabe personnel to replace expatriate labour over time where possible.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
19.9.2 Health & Safety
All employees will be issued or have available suitable internationally accepted safety equipment and clothing for the task which is their responsibility. The wearing and use of this safety equipment is mandatory.
Safety of all site personnel as well as local inhabitants will be at the forefront of managements objectives and this will be carried through by regular briefings, lectures from suppliers of hazardous products, meetings with the staff and representatives of all affected local inhabitants.
The mining contractor will be bound by the Burkina Faso health and safety regulations and will operate the mining activities to internationally accepted health and safety standards.
The mine will employ health and safety systems which will involve:-
Pre-employment medical.
Standard workplace induction and induction booklet.
Ensuring all employees have necessary literacy standards.
Certification of employee's skills.
Workplace safety meetings.
Appropriate danger and out of service tag out systems.
19.9.3 Plant Manpower Levels
The anticipated manpower levels for the mine are shown in Figure 19.17 below:-
Figure 19-17 : Manpower Requirements
Description of Title | Number | Type | Grade |
Senior Administration |
Mine Manager | 1 | Expat | |
Assistant Mine Manager | 1 | Local | |
Purchasing Manager | 1 | Expat | |
Accountant | 1 | Expat | |
Assistant Accountant | 1 | Local | |
Engineering Manager | 1 | Expat | |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | |
Description of Title | Number | Type | Grade |
Camp Manager | 1 | Local | |
Chief Chemist | 1 | Expat | |
Sub Total Senior Staff Admin | 8 |
General Administration |
Bookkeeper | 1 | Local | |
Payroll Clerk | 1 | Local | |
Environmental Officer | 1 | Local | |
Safety/ Training Officer | 2 | Local | |
Security Chief | 1 | Local | |
Personnel Officer | 1 | Local | |
Secretaries | 4 | Local | |
Clerks | 6 | Local | |
Stores Controller | 1 | Local | |
Nurses | 3 | Local | |
Security/Firemen | 9 | Local | |
Cleaners | 6 | Local | |
Sub Total General & Admin. | 36 |
Senior Engineering | | | |
Maintenance Superintendent | 1 | Expat | |
Maintenance Engineer | 1 | Local | |
Mechanical foremen | 2 | Local | |
Electrical Foremen | 2 | Local | |
Instrument Technician | 2 | Local | |
Sub Total Senior Staff Engineering | 8 |
Engineering | | | |
Fitters/ Mechanics | 4 | Local | |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | |
Description of Title | Number | Type | Grade |
Electricians | 2 | Local | |
Welder/Boilermakers | 2 | Local | |
Carpenter | 2 | Local | |
Mason | 2 | Local | |
Sub Total Engineering | 12 |
Senior Operations Staff |
1. Mining | | | |
Production Manager | 1 | Expat | |
Geologist | 1 | Expat | |
Production Geologist | 1 | Expat | |
Pit Superintendent | 1 | Expat | |
Mine Planner | 1 | Expat | |
Assistant Planner | 1 | Local | |
Surveyor | 1 | Expat | |
2. Processing | | | |
Plant Superintendent | 1 | Expat | |
Assistant Superintendent | 1 | Local | |
General Foreman | 1 | Expat | |
Plant Metallurgist | 1 | Expat | |
Assistant Metallurgist | 1 | Local | |
Gold Room Foreman | 1 | Expat | |
Shift Supervisors | 3 | Expat | |
Sub Total Operations Senior Staff | 16 |
Operations Staff |
Assistant Surveyor | 1 | Local | |
Gold Room Operators | 2 | Local | |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | |
Description of Title | Number | Type | Grade |
Table Operator | 2 | Local | |
Reagent Preparation Operators | 2 | Local | |
General Labourers | 2 | Local | |
Crusher Operators | 2 | Local | |
Loader/Dozer Driver | 2 | Local | |
Mill Operators | 4 | Local | |
Filter Plant Operators | 2 | Local | |
Tailings Operators | 6 | Local | |
Shift Labourers | 6 | Local | |
Assayers | 2 | Local | |
Sample Preparation Operators | 4 | Local | |
Subtotal Operations | 37 |
The staffing shown in the above table is for a contract mining scenario, for an owner operated mining fleet there would be a further 20 machine operators, 3 maintenance and 6 labourers which would be all local labour.
19.10 Operating Costs
Processing costs have been generated for the various CIL Scenarios as per Figure 19-13.
Figure 19-11 : Processing Costs
Throughput | Wet Tailings System | Dry Tailings System |
| Cost/tonne milled | Annual Cost | Cost/tonne milled | Annual Cost |
2 Million tonnes per annum | $3.63 | $7,261,162 | $4.08 | $8,164,815 |
1.5 Million tonnes per annum | $3.98 | $5,970,362 | $4.64 | $6,965,515 |
1 Million tonnes per annum | $4.67 | $4,670,262 | $4.95 | $4,950,629 |
The operating cost for the processing plant comprise of the following items:
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
- Consumables - Reagents, Balls etc
- Power generation
- Tailings Disposal
20 MINE INFRASTRUCTURE
20.1 Property Access
The access route to the Inata site has been divided into two separate sections for clarity and to facilitate the preparation of the quantity and cost estimates.
Section 1 of the access route covers the section between Ouagadougou and Djibo. Section 2 of the access route covers the route between Djibo and the Inata Mine Site.
20.2 Primary Routes
Two alternative routes are currently available to the project: Ouagadougou to Djibo via Ouahigouya or, Ouagadougou to Djibo via Kongoussi. The alignment of the routes is presented in Figure 31-36 & 31-37.
20.2.1 Option A1 - Ouagadougou to Djibo, via Ouahigouya
The 287 km length from Ouagadougou to Ouahigouya is a main northern arterial route within Burkina Faso and as such is a well-maintained metalled road with good side drainage.
From 5 km north of Ouahigouya, a laterite surface road is evident, which exhibits only minor surface corrugations. All the year round access is maintained as the route crosses a series of barrage, culverts and concrete "French Crossings" which allow the free passage of storm flows. Some 8 km prior to the regional town of Djibo, for a short section, local corrugations become bad and sections of the road have been partially eroded. However, access is still possible. It is understood that this alignment is maintained by the Government and is graded following every wet season.
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
20.2.2 Option A2 - Ouagadougou to Djibo, via Kongoussi
The 203 km length from Ouagadougou to Djibo comprises a laterite surface road, which is currently in very poor condition. Significant corrugations are evident and in sections the road has been partially washed away. To the south of Kongoussi, where the road passes over the White Volta, the carriageway is reduced to a single lane. Surface corrugations are more serious in this section and safe transit is difficult.
It is understood that the Government intend to metal the alignment between Ouagadougou and Kongoussi in the near future. However, until this is completed and the section north of Kongoussi is rehabilitated, GBM suggest that the current project imposes a ban on the use of this route.
It is suggested that the route is surveyed again during the feasibility stage.
20.3 Secondary Routes
Three alternative routes are available to the project for access from Djibo to the Inata project site. The Options are presented in Figure 31-37 and are summarised in the following sections:
20.3.1 Option B1 - Djibo to Inata, via Bouro Village
The 45 km route is formed by a very basic road, poorly maintained and with limited or non-existent infrastructure.
The road is not surfaced in its entire length and is formed mainly by laterite and soft sand sections. There are no culverts although 21 potential stream crossings exist and there are very limited edge drains in sections.
The road presents no formal grading and, as its alignment follows the local river alignment, sections of the road are prone to seasonal flooding. This situation is worsened by the topography of the area near the village of Bouro where, should a barrage be constructed to provide water for the project and the local village, sections of the road will be completely inundated.
The road crosses farming land and various relatively small villages.
It is estimated that grading and edge drains will be required to ensure accessibility and trafficability of the road on a permanent basis.
Figure 20-1 below presents the cost estimation for this section of road.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 20-1 : Cost Estimation - Road Option B1
Item | Unit | Quantity | Rate | Amount (US$) |
Bush clearance and Top soil Stripping | Ha | 22.5 | $2,600.00 | $58,500.00 |
Compensations for Farm Land | Ha | To be evaluated by others |
Rip, removed detritus, grade, compact to 95%MDD, | | | | |
subgrade to max 300 mm depth | m2 | 135 000 | $1.30 | $175,500.00 |
Grade alignment | m2 | 135 000 | $0.30 | $40,500.00 |
Win , Haul, and place to 95% MDD 200 mm gravel to | | | | |
subgrade (Average) | m3 | 43 200 | $6.20 | $267,840.00 |
Cut, grade edge drains inclusive of mitres every 75 m | | | | |
(min) | m | 45 000 | $0.30 | $13,500.00 |
Excavate, Supply, Install pipes, Win, haul, place and | | | | |
compact to 95% MDD Class 1 backfill to culvert | m3 | 150 | $7.25 | $1,087.00 |
Excavate , trim ,compact, supply, place concrete for | | | | |
stream crossings | No | 21 | $7,500.00 | $157,500.00 |
Subtotal | | | | $714,427.00 |
15% Unmeasured items | | | | $107,164.00 |
15% P&G's | | | | $107,164.00 |
Total Estimated Cost | | | | $928,755.00 |
20.3.2 Option B2 - Djibo to Inata, via Belehede
Two sections form the 67 km route. A 37 Km road from Djibo to Belehede is an existing all weather laterite road maintained by the regional authorities and which is trafficable all year round. The 30 Km route from Belehede to the Inata site is a very basic road, poorly maintained and with limited or non-existent infrastructure.
The second section of the route is not surfaced in its entire length and is formed mainly by laterite and soft sand sections. There are no culverts although a significant number of potential stream crossings exist and there are very limited edge drains in sections.
Similarly to the alternative route via Bouro, the road presents no formal grading and, as its alignment follows the local river alignment, sections of the road are prone to seasonal flooding. This situation is also worsened by the topography of the area near the village of Sona where, should a barrage be constructed to provide water for the project and the local village, sections of the road will be completely inundated.
Traffic on these sections of the route is limited to local traffic, which is relatively minor.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
It is estimated that grading and edge drains will be required on the section from Belehede to the site, to ensure accessibility and trafficability of the road on a permanent basis.
Figure 20-2 below presents the cost estimation for this section of road.
Figure 20-2 : Cost Estimation - Road Option B2
Item | Unit | Quantity | Rate | Amount (US$) |
Bush clearance and Top soil Stripping | Ha | 15 | $2,600.00 | $39,000 |
Compensations for Farm Land | Ha | To be evaluated by others |
Rip, removed detritus, grade, compact to 95%MDD, | | | | |
subgrade to max 300 mm depth | m2 | 90 000 | $1.30 | $117,000.00 |
Grade alignment | m2 | 90 000 | $0.30 | $27,000.00 |
Win , Haul, and place to 95% MDD 200 mm gravel to | | | | |
subgrade (Average) | m3 | 28 800 | $6.20 | $178,560.00 |
Cut, grade edge drains inclusive of mitres every 75 m | | | | |
(min) | m | 30 000 | $0.30 | $9,000.00 |
Excavate, Supply, Install pipes, Win, haul, place and | | | | |
compact to 95% MDD Class 1 backfill to culvert | m3 | 150 | $7.25 | $1,087.00 |
Excavate , trim ,compact, supply, place concrete for | | | | |
stream crossings | No | 15 | $7,500.00 | $112,500.00 |
Subtotal | | | | $484,147.00 |
15% Unmeasured items | | | | $72,622.00 |
15% P&G's | | | | $72,622.00 |
Total Estimated Cost | | | | $629,391.00 |
20.3.3 Option B3 - Djibo to Inata, via central route
This option for the route to site is also divided into two sections. A 24 Km road from Djibo to Belehede is an existing all weather laterite road maintained by the regional authorities and which is trafficable all year round. The second section would require the construction of a new road between the existing road from Djibo to Belehede. Approximately 24 Km from Djibo and 7 Km from Tongomayel, a new 29 Km road will be constructed to ease access to the site.
The total route length will be form by the 24 Km section on the road from Djibo to Belehede as for Option B2, and a further 29 Km road purposely constructed to access the Inata Site.
The new road presents some 4 potential stream crossings and will be aligned to run along the higher elevations of the terrain such that it will not be prone to flooding.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The road will be aligned away from the villages minimising disruption and eliminating the risk of local traffic using the road. Access will also be controlled to avoid unwanted access.
The alignment of the road will require to be cleared of bushes, graded and edge drains installed to ensure all year traffic ability.
Figure 20-3 below presents the cost estimation for this section of road.
Figure 20-3 : Cost Estimation - Road Option B3
Item | Unit | Quantity | Rate | Amount (US$) |
Bush clearance and Top soil Stripping | Ha | 29 | $2,600.00 | $75,400.00 |
Compensations for Farm Land | Ha | To be evaluated by others |
Rip, removed detritus, grade, compact to 95%MDD, | | | | |
subgrade to max 300 mm depth | m2 | 87 000 | $1.30 | $113,100.00 |
Grade alignment | m2 | 87 000 | $0.30 | $26,100.00 |
Win , Haul, and place to 95% MDD 200 mm gravel to | | | | |
subgrade (Average) | m3 | 34 800 | $6.20 | $215,760.00 |
Cut, grade edge drains inclusive of mitres every 75 m | | | | |
(min) | m | 29 000 | $0.30 | $8,700.00 |
Excavate, Supply, Install pipes, Win, haul, place and | | | | |
compact to 95% MDD Class 1 backfill to culvert | m3 | 150 | $7.25 | $1,087.50 |
Excavate , trim ,compact, supply, place concrete for | | | | |
stream crossings | No | 4 | $7,500.00 | $30,000.00 |
Subtotal | | | | $470,147.50 |
15% Unmeasured items | | | | $70,522.12 |
15% P&G's | | | | $70,522.12 |
Total Estimated Cost | | | | $611,191.50 |
20.3.4 Discussion & Recommendations
The economic comparison of the different route options has been based on a comparison of the three alternative routes from Djibo to site. The section of the route from the capital Ouagadougou to Djibo has been left out of the comparison based on the recommendation that only the route via Ouahigouya be used.
The proposed layout of the new constructed roads to site is based on a 6 m wide section of laterite-surfaced road including a compacted and graded subgrade and lateral drains and sand berms for the sections constructed on soft ground (sand) and similarly laterite-surfaced for the sections constructed on harder ground. See Figure 31-38.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Laterite for road construction will be sourced locally such that transportation costs are minimised.
The road will also be provided, where necessary, with reinforced concrete faced stream crossings some 10 to 30 metres long and 6 metres wide to match both the crossing requirements and the width of the road. Figure 31-38, presents details of the proposed stream crossings.
Provisional sums of 15 % have been included to cover the cost of immeasurable items and preliminary and general (P&G) items.
Based on the above comparison it estimated that the proposed route B3 as described above will provide suitable all year access to the site at a minimum cost.
Due to the private nature of the route between the site and the intersection with the Djibo-Belehede road, access could be controlled increasing site and traffic security resulting in a more adequate solution to the site access issue.
20.4 Camp Accommodation and Facilities
All mine, process plant and supporting services senior staff will be accommodated on site, all personnel will be provided with meals on site. The camp will be sited within a radius of 1.5km from the main process plant and administration buildings. The camp will provide accommodation, catering, dining, recreational facilities, telephone and internet facilities for the senior staff at the mine.
A total staff complement of 54 will be accommodated in the camp with the remainder of the staff being recruited from the locality. The camp will be large enough to accommodate the additional company staff required for the construction period.
Expatriates sleeping quarters will consist of two room flatlets of 20 square meters each with their own washroom, the flatlets will be arranged into 6 man units. 6 units have been provided.
The Mine manager will be provided with a 3 bedroom standalone house including separate living room, kitchenette and bathroom.
The plant manager and Engineering manager will be provided with two bedroom standalone houses with separate living room, kitchen and bathroom.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The remainder of the accommodation will be 4 units of 140 square meters split into 8 single rooms with washrooms.
20.4.1 Kitchen and Catering Facilities
The camp kitchen and catering facilities will feed all personnel, providing three meals per day per person in either the junior or senior staff mess. The catering would be carried out by an outside contractor using the mines facilities. The food storage and kitchens are designed to handle the staff envisaged on site during the construction period. The kitchen and stores will be provided with refrigerators, freezers, microwaves, cookers and deep fat fryers to good commercial standards.
20.4.2 Recreational Facilities
Recreational facilities for use in off shift hours include a bar area, pool and games area equipped with tables, chairs, male and female washrooms, pool table and dartboard.
The bar area will have a satellite TV with DVD video player and a small library.
20.4.3 Laundry
The camp will have a laundry facility which will provide for all laundry/cleaning services which will cater for dirty work clothes and the cleaning of recreational clothing separately. Clothes from the process plant will be cleaned in a separate and secure facility.
20.4.4 Septic Tank and Sewage System
The camp will be provided with a septic tank and filter bed system to cater for the camp requirements. The plant will have a separate septic tank and filter bed system.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
20.5 Mine Support Facilities
The mine support facilities buildings will be centrally located to serve the mining and the process plant, but will be outside of the high security fenced area.
All operations and support staff will be located in a single administration building with workshops, stores and fenced storage area, fuel/lubrication storage and distribution centre and power plant adjacent.
The support services will comprise of the following Buildings/Facilities.
20.5.1 Administration Building
The administration building will house all staff for the operations (except for the process plant technical staff), medical staff and mining contractor offices. The building will be sited adjacent to the main gate.
Office areas for the engineering, geology, surveying safety and secretarial will be provided in the central area of the building with a series of individual air conditioned offices around the perimeter for the senior staff.
20.5.2 Workshop and Plant Stores
The workshop and plant stores building will accommodate all maintenance operations for the plant and plant vehicles. Maintenance will be limited to light fabrication and machining, heavy fabrication and machining will be outsourced. The workshop will be equipped with a lathe, grinding machines, hand tools, cutting and bending facilities and forklift. The mining contractor will provide suitable workshop facilities for his machinery maintenance.
The building will house the stores for the mine; the stores will receive all mine supplies and will be responsible for storage and distribution to the appropriate department. The stores will be provided with a fenced area for storage of larger items and bulk reagents in containers.
20.5.3 Fuel and Lubrication storage and distribution
This equipment will be the responsibility of the Fuel/ Lubricant supplier, he will install and maintain a suitable depot where the fuel can be stored and distributed to the end user. He will be fully responsible for maintaining adequate supplies of fuel for the power plant and the mining contractor.
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The Plant will comprise of the following items:-
Offloading and forwarding pumps(duty and standby)
Fuel Filtration Units (HFO & Diesel Centrifuges and Filters)
2 off 1000 m3 Steel Storage Tanks & 2 off 60 m3 Steel Day Tanks to API 650 (one set diesel, one set HFO)
Trade and Metrology approved bulk resale meters and kerbside bowsers for LV fuelling.
Fire Protection comprising water ring main and hydrants with reels & nozzles and fire extinguishers.
Refuelling baygantries.
Office.
SecurityFencing.
Localised panels, stop/start stations, area lighting, tank gauging system and electrical installation.
Piping (ASTM Schedule 40), valves and dry break couplings.
Lube offloading and forwarding pumps.
Lubricantfiltration units.
Trade & Metrology approved resale meters.
Dispensing Reels with hose and trigger assemblies.
4 off 30 m3 horizontal storage tanks (1 is for waste oil).
Waste Oil Pumps
Packed Lubricant Storage Shed.
20.5.4 Sewage Disposal
Sewage will be treated at one septic tank system for the processing plant facility; the construction will be similar to the unit installed at the camp.
20.5.5 Explosives Magazine Facility
The explosives magazine facility will comprise of an area for explosives and a separate are for the initiation materials. The facility will be the responsibility of the mining contractor both in terms of building in accordance with the regulations in force and maintenance of the area and records.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
20.6 Sanitary Landfill
The domestic garbage will be disposed of in a landfill site located adjacent to the tailings deposition site. The site will be at least 100 meters wide by 200 meters long which is designed for the storage space for the waste generated by the camp and mining operation for the projected 7 year life of mine. The waste will be dumped and compacted in cells to allow for continuous closure of the facility by deposition of at least 1 meter of soil from the mining operation.
The facility will be provided with diversion trenches to handle the surface water run off, with an inner toe drain at the downstream walls of the cells to collect the leachate from the waste and the contaminated run off from the cells. The leachate and run off water will flow into a pond, downstream of the disposal facility, and will be pumped onto the tailings disposal facility.
20.7 Power & Telecommunications
20.7.1 Power
The Belahouro project will use diesel generators located at the plant to meet the power demand of the plant and camp. The calculated requirement of the process plant is 7.25 MW (based on 2Mtpa), the camp and infrastructure will draw a further 2 MW giving a grand total of 9.25 MW.
The Power Plant will comprise of the following:-
Three 6M25, 1800kW, 11kV at 50Hz medium speed generators equipped for running on HFO.
Three 3512B HD, 1200kW continuous 1500kW prime, 11kV at 50Hz High Speed Generators (Standby/Startup System) running on Diesel
Double Busbar system for combined start up of all loads.
Alternators and outgoing feeders
Base Load Power House
Standby Power House
Filters and cooling systems
Electrical Control gear in air condition control room.
Computerand display.
Firefightingsystem.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The power will be distributed on 11 kV overhead lines with step down transformers in the field. The power plants for the lower throughput will have a similar configuration, the numbers of generator units will reduce accordingly.
20.7.2 Communications
Site communications and the internet services will use a microwave link to the ONATEL (Burkina Faso government service) communications tower. The site telephones and computer system will operate on their own local area network with limited access to the internet and national telephone system.
20.8 Tailings
20.8.1 Tailings Storage
There are 6 main sites to consider for the site of the plant and the tailings facility an initial visit indicated a site which can be located on the co-ordinates 682200/1587800. The site is between the North and Central pits, the tailings can be sited directly West of the plant. This would have to be confirmed by a series of condemnation drilling to prove the ground sterile. The tailings facility would have the capacity for 7.5 million cubic meters and would be 600meters x 600 meters x 20 meters high in the case of the wet storage system. The dry storage system would cover an area of 700meters x 962meters x 20meters high. Both based on 2Mtpa the lower throughput dumps will be smaller in size
20.9 Water Management
20.9.1 General
An integral part of the design of the tailings management facility is the control and management of water from the tailings as well as incident rainfall and run off water. The objective of the control plan is to ensure that sufficient emergency storage capacity exists within the dam at any stage of its life such that maximum inflows of water from the sources described can be accommodated in safety with no risk of overtopping the embankments.
At the same time, and of particular importance at Belahouro, an adequate management of the water available will allow the minimization of water losses into the ground and groundwater systems and via evaporation, maximising the water available to the process and minimising any potential environmental impact.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
20.9.2 Flood Attenuation
Although there is no information available to date on the frequency and magnitude of the rainfall events in the area, it is known that the project is located in a zone of infrequent rainfall events.
The proposed layout of the tailings facility is such that the net inflow of water into the impoundment area will be limited to the incident rainfall and the water being carried by the tailings.
At this stage it is not envisaged that the facility will require the construction of a spillway structure and flood control will be exercised by means of temporary storage of incident rainfall and run off and pumping of the excess water for use in the process as required.
20.9.3 Return Water System
The tailings facility will include a return water system for the recirculation of water into the process plant. Based on the geometrical characteristics of the dam and the topographical location of the plant, the return water system has been devised as a floating barge equipped with suction pumps and a flexible piping system to facilitate the appropriate location of the barge within the tailings pond.
The proposed installation contemplates 2 electric centrifugal pumps (1 operational and 1 stand-by). The barge will be tied to three positions on the edge of the impoundment such that its location within the tailings pond can be easily change. Flexible pipes will serve to transfer the water from the pumps to a permanent pipe located above the final tailings level. This pipe will transfer the water to the recirculation tank at the plant site.
20.9.4 Diversion Structures
The configuration of the facility is such that diversion structures will be minor and only required to protect the downstream toes of the tailings embankments from erosion by run off water.
The actual requirements for diversion structures will be determined during the feasibility and design stages.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
20.9.5 TMF Preliminary Water Balance
The purpose of the TMF pre-feasibility water balance analysis is to estimate the amount of supernatant return that may be available from the slurry discharge paddock TMF and dry stack facility during an average rainfall year. The model assumes that following:
Tailings will be delivered at 60% w/w solids content (the actual solids content of the discharged tailings may increase to 65%) or, at 80% w/w (Filter cake)
The water lockup within the slurry tailings is assumed to be 30%.
Water lockup within filter cake tailings is assumed to be not less than the materials natural moisture content. For the purposes of this pre-feasibility analysis AMEC have assumed this value to be 15%.
Tailings will be discharged from the process plant at an maximum rate of 250 tph for 8010 hours per annum, for the whole six years
Slurried tailings will be transported from the process plant by a dedicated tailings delivery pipe and spigotted sub-aerially onto the beach
Filter cake tailings will be mechanically transported
Where possible, supernatant will be reclaimed and pumped back to the process plant
The TMF will be operated on a 12 hour basis, 365 days per year
The rainfall records are average monthly values, as summarised in Table 1, hydrological data
The evaporation records are average monthly values estimated for the project site.
Excess storm water runoff will be released directly to the environment provided it is in compliance with World Bank environmental standards for industrial water release;
Evaporation loss from the unprotected tailings surface has been neglected.
20.9.5.1 Water Balance Results - Slurry Discharge Option
The quantity of water entering the TMF will be dependent on the moisture content of the tailings being delivered and the level of precipitation occurring over the area. Following processing, tailings are assumed to discharged at an average pulp density of 60% w/w, suggesting that a total of 152 m3 per hour of water will be delivered to the TMF.
The results of the preliminary water balance, based on a 600 m by 600 m paddock facility are summarised on Figure 20-4 below.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Stepped iterations for average maximum (1988) year and minimum (1993) year rainfall events have be modelled assuming average evaporation conditions. AMEC have also assumed that up to 30% of tailings delivery water will be locked within the tailings matrix and not released as free supernatant.
Due to the limited size of the paddock, the model is highly sensitive to losses due to evaporation. AMEC have consequently assumed that evaporation loss from exposed tailings beach will be 100% during days when rainfall exceeds 10 mm.
The preliminary results suggest that during the dry months some 60% of the tailings delivery water could be reclaimed and returned to the process plant, rising to between 80% and 100% during periods of prolonged rains. A more detailed model will be required for feasibility study based on a detailed hydrological water analysis and geotechnical analysis of the proposed tailings.
20.9.5.2 Water Balance Results - Filter Cake Option
Dry tailings will be produced at the process plant at an average pulp density of 80%, with an average moisture content of 10 %. Based on similar tailings characteristics, AMEC have assumed that the natural moisture content of the tailings will be approximately 13%. Consequently, entrained water above this percentage will drain from the dry stack over time. A monthly time step model has been developed which suggests that the main source of water reporting from a dry stack facility will be surface runoff. A HDPE lined seepage return sump will be installed equipped with a small pump (up to 50 l/s flow) to return excess runoff to the process plant.
The preliminary results for the water balance are summarised on Figure 20-5 and suggest that during dry periods no water will be returned to the process plant. A more detailed model will be required for feasibility study based on a detailed hydrological water analysis and geotechnical analysis of the proposed dry tailings.
Figure 20-4 : Slurry TMF Preliminary Water Balance
Month | | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Annual |
Climatological Data | | | | | | | | | | | | | |
Rainfall | | | | | | | | | | | | | | |
(Average) | mm | 5 | 0 | 0 | 0 | 0 | 2 | 7 | 19 | 58 | 114 | 161 | 57 | 423 |
Estimated | | | | | | | | | | | | | | |
Raindays | days | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 6 | 11 | 16 | 6 | |
(Average) | | | | | | | | | | | | | | |
Rainfall (1988 | | | | | | | | | | | | | | |
Max) | mm | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 71 | 163 | 293 | 47 | 599 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Month | | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Annual |
Estimated | | | | | | | | | | | | | | |
Raindays | days | 3 | 0 | 0 | 0 | 0 | 1 | 4 | 8 | 10 | 23 | 30 | 18 | |
(Average) | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Rainfall (1993 | | | | | | | | | | | | | | |
Min) | mm | 16 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 60 | 48 | 132 | 60 | 320 |
| | | | | | | | | | | | | | |
Estimated | | | | | | | | | | | | | | |
Raindays | days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 3 | 0 | |
(Average) | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Evaporation | | | | | | | | | | | | | | |
Average | mm | 229 | 236 | 228 | 238 | 260 | 329 | 336 | 325 | 270 | 211 | 166 | 169 | 2,996 |
| | | | | | | | | | | | | | |
Average | | | | | | | | | | | | | | |
maximum daily | C | 39 | 37 | 34 | 33 | 36 | 39 | 42 | 41 | 39 | 35 | 33 | 35 | |
temperature | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Average Rainfall | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
%age abstraction | | 65% | 65% | 65% | 65% | 65% | 65% | 65% | 65% | 70% | 80% | 100% | 90% | |
| | | | | | | | | | | | | | |
Abstraction | | | | | | | | | | | | | | |
volume per | m3/mth | 68,455 | 66,247 | 68,455 | 68,455 | 61,830 | 68,455 | 66,247 | 68,455 | 71,342 | 84,252 | 105,31 | 91,726 | |
month | | | | | | | | | | | | 5 | | |
| | | | | | | | | | | | | | |
%age | | | | | | | | | | | | | | |
supernatant | 6% | 8% | 9% | 9% | 9% | 8% | 7% | 6% | 6% | 7% | 11% | 13% | 6% | |
pond within TMF | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
%age release | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| | | | | | | | | | | | |
Maximum Rainfall Year 1988 | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
%age abstraction | | 60% | 65% | 65% | 65% | 65% | 60% | 50% | 40% | 60% | 75% | 100% | 80% | |
| | | | | | | | | | | | | | |
Abstraction | | | | | | | | | | | | | | |
volume per | m3/mt | | | | | | | | | | | | | |
month | h | 11,152 | 13,633 | 14,738 | 15,776 | 14,411 | 11,771 | 18,747 | 9,540 | 12,676 | 14,489 | 46,937 | 12,871 | |
| | | | | | | | | | | | | | |
%age | | | | | | | | | | | | | | |
supernatant | 6% | 6% | 8% | 8% | 9% | 8% | 7% | 10% | 5% | 7% | 8% | 26% | 7% | |
pond within TMF | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
%age release | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| | | | | | | | | | | | |
Minimum Rainfall Year 1993 | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
%age abstraction | | 60% | 65% | 65% | 65% | 65% | 65% | 65% | 65% | 80% | 80% | 100% | 100% | |
| | | | | | | | | | | | | | |
Abstraction | | | | | | | | | | | | | | |
volume per | m3/mt | | | | | | | | | | | | | |
month | h | 25,971 | 21,456 | 19,846 | 18,450 | 15,696 | 12,517 | 11,256 | 12,642 | 17,554 | 11,814 | 30,721 | 19,195 | |
| | | | | | | | | | | | | | |
%age | | | | | | | | | | | | | | |
supernatant | 6% | 14% | 12% | 11% | 10% | 9% | 7% | 6% | 7% | 10% | 7% | 17% | 11% | |
pond within TMF | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
%age release | m3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| | | | | | | | | | | | | | |
Note: Assuming 60% pulp density, 30% interstitial tailings water retention, starting supernatant pond of 74,000 m2 (21% of paddock area). Based on an average process water requirement for slurry transport of 3,650 m3/day |
Figure 20-5 : Dry Stack Preliminary Water Balance
Month | | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Annual |
Climatological Data | | | | | | | | | | | | | | |
Rainfall | | | | | | | | | | | | | | |
(Average) | mm | 5 | 0 | 0 | 0 | 0 | 2 | 7 | 19 | 58 | 114 | 161 | 57 | 423 |
| | | | | | | | | | | | | | |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Month | | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Annual |
Raingfall (1988 | | | | | | | | | | | | | | |
Max) | mm | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 71 | 163 | 293 | 47 | 599 |
| | | | | | | | | | | | | | |
Rainfall (1993 | | | | | | | | | | | | | | |
Min) | mm | 16 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 60 | 48 | 132 | 60 | 320 |
| | | | | | | | | | | | | | |
Evaporation | | | | | | | | | | | | | | |
Average | mm | 229 | 236 | 228 | 238 | 260 | 329 | 336 | 325 | 270 | 211 | 166 | 169 | 2,996 |
| | | | | | | | | | | | | | |
Average | | | | | | | | | | | | | | |
maximum daily | C | 39 | 37 | 34 | 33 | 36 | 39 | 42 | 41 | 39 | 35 | 33 | 35 | |
temperature | | | | | | | | | | | | | | |
Seepage/Runoff Return to Process Plant | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Y2 Average | | | | | | | | | | | | | | |
Rainfall Year | m3 | 186 | 644 | 0 | 644 | 644 | 797 | 138 | 2,115 | 7,838 | 15,842 | 22,403 | 8,015 | 59,267 |
| | | | | | | | | | | | | | |
Pumping Hours | | | | | | | | | | | | | | |
@ 25 l/s | Hrs | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 15 | 81 | 173 | 249 | 86 | 605 |
| | | | | | | | | | | | | | |
Y2 1998 | | | | | | | | | | | | | | |
Maximum | m3 | 0 | 644 | 0 | 644 | 644 | 665 | 3,138 | 644 | 9,680 | 22,661 | 40,452 | 6,703 | 85,877 |
Rainfall Year | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Pumping Hours | | | | | | | | | | | | | | |
@ 25 l/s | Hrs | 0 | 1 | 0 | 1 | 0 | 0 | 26 | 0 | 102 | 250 | 453 | 71 | 904 |
| | | | | | | | | | | | | | |
Y2 1993 | | | | | | | | | | | | | | |
Minimum Rainfall | m3 | 952 | 644 | 0 | 644 | 644 | 644 | 717 | 915 | 8,015 | 6,679 | 18,386 | 8,491 | 46,732 |
Year | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Pumping Hours | | | | | | | | | | | | | | |
@ 25 l/s | hrs | 5 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 83 | 70 | 203 | 91 | 455 |
| | | | | | | | | | | | | | |
Y6 Average | | | | | | | | | | | | | | |
Rainfall Year | m3 | 1,461 | 644 | 0 | 644 | 644 | 509 | 3,689 | 10,983 | 29,866 | 54,000 | 69,546 | 23,922 | 195,908 |
| | | | | | | | | | | | | | |
Pumping Hours | | | | | | | | | | | | | | |
@ 50 l/s | hrs | 5 | 0 | 0 | 0 | 0 | 0 | 16 | 57 | 163 | 299 | 386 | 131 | 1,058 |
| | | | | | | | | | | | | | |
Y6 1988 | | | | | | | | | | | | | | |
Maximum | m3 | 0 | 644 | 0 | 644 | 644 | 741 | 16,567 | 644 | 36,596 | 77,199 | 126,06 | 19,919 | 279,665 |
Rainfall Year | | | | | | | | | | | | 6 | | |
| | | | | | | | | | | | | | |
Pumping Hours | | | | | | | | | | | | | | |
@ 50 l/s | hrs | 0 | 0 | 0 | 0 | 0 | 0 | 88 | 0 | 201 | 428 | 702 | 109 | 1,528 |
| | | | | | | | | | | | | | |
Y6 1993 | | | | | | | | | | | | | | |
Minimum Rainfall | m3 | 4,981 | 644 | 0 | 644 | 644 | 644 | 958 | 1,295 | 30,514 | 22,826 | 56,966 | 25,375 | 145,493 |
Year | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Pumping Hours | | | | | | | | | | | | | | |
@ 50 l/s | hrs | 25 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 167 | 125 | 316 | 139 | 775 |
| | | | | | | | | | | | | | |
20.10 Water Abstraction Options
Two alternative water abstraction options have been briefly reviewed with the potential to provide water to the CIP process plant i.e.:
Localsurface impoundment
Groundwater Aquifer
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
20.10.1 Groundwater Aquifer
The proposed site is located some 40 Km north of the Inata site at the Ninga aquifer, within the sedimentary rocks.
No pump tests are available to date and therefore there is no certainty on the suitability of the aquifer to satisfy the project water supply requirements.
The proposed well field is located in the approximate coordinates 682000E, 1627000N and will require a 15 Km long HDPE or steel pipeline for the pumping of water as well as a 3 m wide non surface access track. It is estimated that the pipe will require to be supported above ground.
Figure 20-6 below presents the capital cost estimate for the construction of a water supply pipeline and associated well field.
Figure 20-6 : Cost Estimation - Water Supply Pipeline and Well field
Item | Unit | Quantity | Rate | Amount (US$) |
200 mm 20PN Steel pipe | m | 40 000 | $25.00 | $1,000,000.00 |
Air Valves (50 mm) | No. | 40 | $65.00 | $2,600.00 |
Scour Valves (150 mm gate) | No. | 40 | $660.00 | $26,400.00 |
Isolation Valves | No. | 40 | $400.00 | $16,000.00 |
Non-Return Valves | No. | 40 | $400.00 | $16,000.00 |
Support Plinths | No. | 26 000 | $10.00 | $260,000.00 |
55 kW diesel pumps | No. | 2 | $50,000.00 | $100,000.00 |
Alignment clearance (3m wide) | Ha | 15 | $2,600.00 | $39,000.00 |
Boreholes | No. | 5 | $35,000.00 | $175,000.00 |
Subtotal | | | | $1,635,000.00 |
15% Unmeasured items | | | | $245,250.00 |
15% P&G's | | | | $245,250.00 |
Total Estimated Cost | | | | $2,125,500.00 |
20.10.2 Surface Impoundments
Three potential sites have been identified which may be suitable for the development of a barrage retention facility, as summarised in the following sections:
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
20.10.2.1 Sona Barrage
The site at Sona is one of the proposed sites, the land is primarily very flat and at present there is ponding, which borders on to the village of Filo. There are three major issues to building suitable barrages to raise the water level by 5 meters.
- The villages of Filo and Sona would have to be resettled with all the attendant costs and probable delays.
- The evaporation rate is an imponderable, generally because of the vast area required.
- A 5 km long pipeline and extraction point is required.
The proposed site for the Sona Barrage is presented in Figure 31-34, including the potential inundation area with an estimated total area of inundation of approximately 55 Km2.
Figure 20-7 below presents the capital cost estimate for the construction of a water retaining barrage at Sona for the supply of water for mining and processing operations.
Figure 20-7 : Cost Estimation - Sona Barrage 2200m long @ 5m high
Item | Unit | Quantity | Rate | Amount (US$) |
Bush clearance and Top soil Stripping | Ha | 7.2 | $26,500.00 | $190,800.00 |
Compensations | ps | 1 | $250,000.00 | $250,000.00 |
Rip to 300 mm depth, clear, moisture condition and | | | | |
compaction of foundation | m2 | 72,000 | $1.30 | $93,600.00 |
Class I selected earth fill win, haul, place and compact | m3 | 160,000 | $7.25 | $1,160,000.00 |
Supply and place drainage gravel (estimated) | m3 | 3,050 | $23.00 | $70,150.00 |
Cemented Rip Rap for Spillway Channel | m3 | 240 | $50.00 | $12,000.00 |
Spillway Channel Excavation | m3 | 1,800 | $3.00 | $5,400.00 |
Access Road | Km | 10 | $10,000.00 | $100,000.00 |
Water Pipe line Barrage to Site | Km | 10 | $42,000.00 | $420,000.00 |
Village resettlement | ps | 1 | $500,000.00 | $500,000.00 |
Subtotal | | | | $2,801,950.00 |
15% Unmeasured items | | | | $420,292.50 |
15% P&G's | | | | $420,292.50 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
| | | | |
Item | Unit | Quantity | Rate | Amount (US$) |
Total Estimated Cost | | | | $3,642,535.00 |
20.10.2.2 Bouro Barrage
The site at Bouro has similar characteristics to that at Sona, land is primarily flat and a vast area is required for the impoundment, which encompasses Bouro. There are three issues with building suitable barrages to raise the water level by 5 meters.
The village at Bouro, which is quite extensive, would have to be resettled with all the attendant compensation costs and probable delays.
The evaporation rate is an imponderable, generally because of the vast area required (approximately, 48 Km2)
A 15km long pipeline and extraction point is required.
The proposed site for the Bouro Barrage is presented in Figure 31-35, including the potential inundation area with an estimated total area of inundation of approximately 48 Km2.
Figure 20-8 below presents the capital cost estimate for the construction of a water retaining barrage at Bouro for the supply of water for mining and processing operations.
Figure 20-8 : Cost Estimation - Bouro Barrage
Item | Unit | Quantity | Rate | Amount (US$) |
Bush clearance and Top soil Stripping | Ha | 3.3 | $26,500.00 | $87,450.00 |
Compensations | ps | 1 | $750,000.00 | $750,000.00 |
Rip to 300 mm depth, clear, moisture condition and | | | | |
compaction of foundation | m2 | 30 000 | $1.30 | $39,000.00 |
Class I selected earth fill win, haul, place and compact | m3 | 120 000 | $7.25 | $870,000.00 |
Supply and place drainage gravel | m3 | 500 | $23.00 | $11,500.00 |
Rip Rap US and DS 400 mm average thick | m2 | 21 300 | $7.50 | $159,750.00 |
Reinforced Concrete Weir 400 mm thick | m3 | 320 | $600.00 | $192,000.00 |
Water Pipe line Barrage to Site | Km | 10 | $42,000.00 | $420,000.00 |
Village resettlement | ps | | $1,000,000.00 | $1,000,000.00 |
Subtotal | | | | $3,529,700.00 |
15% Unmeasured items | | | | $529,455.00 |
15% P&G's | | | | $529,455.00 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
| | | | |
Item | Unit | Quantity | Rate | Amount (US$) |
Total Estimated Cost | | | | $4,588,610.00 |
20.10.2.3 Mormossal Barrage
The site at Mormossal has similar characteristics to that at Sona, the land is primarily flat and at present there is ponding, which borders on to the village of Filo. There are five major issues to building suitable barrages to raise the water level by 4 meters.
- The village at Filio, would have to be resettled with all the attendant compensation costs and probable delays.
- There would be a possible impingement on the village of Sono
- The village at Belahouro may be at risk.
The evaporation rate is an imponderable, generally because of the vast area required. A 12km long pipeline and extraction point is required.
The proposed site for the Mormossal Barrage is presented in Drawing 0207GEN1206A, including the potential inundation area with an estimated total area of inundation of approximately 48 Km2.
Figure 20-9 below presents the capital cost estimate for the construction of a water retaining barrage at Mormossal for the supply of water for mining and processing operations.
Figure 20-9 : Cost Estimation - Mormossal Barrage 2500m long @ 4m high
Item | Unit | Quantity | Rate | Amount (US$) |
Bush clearance and Top soil Stripping | Ha | 8.2 | $26,500.00 | $216,618.00 |
Compensations | ps | 1 | $375,000.00 | $375,000.00 |
Rip to 300 mm depth, clear, moisture condition and | | | | |
compaction of foundation | m2 | 82,000 | $1.30 | $106,600.00 |
Class I selected earth fill win, haul, place and compact | m3 | 182,000 | $7.25 | $1,319,500.00 |
Supply and place drainage gravel (estimated) | m3 | 3,500 | $23.00 | $80,500.00 |
Cemented Rip Rap for Spillway Channel | m3 | 500 | $50.00 | $25,000.00 |
Spillway Channel Excavation | m3 | 1,800 | $3.00 | $5,400.00 |
Access Road | Km | 13 | $10,000.00 | $130,000.00 |
Water Pipe line Barrage to Site | Km | 12 | $42,000.00 | $504,000.00 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
| | | | |
Item | Unit | Quantity | Rate | Amount (US$) |
Village resettlement | ps | 1 | $375,000.00 | $375,000.00 |
Subtotal | | | | $3,143,218.00 |
15% Unmeasured items | | | | $471,482.70 |
15% P&G's | | | | $471,482.70 |
Total Estimated Cost | | | | $4,086,183.40 |
20.10.3 Recommendation
The estimations above are based on order of magnitude estimates of quantities and estimated rates for Burkina Faso. The comparison has not taken into account the potential water supply capacity of the different options considered, as there is insufficient information at this stage to assess such potential.
It has been considered therefore, that each of the options considered above is capable of supplying the project with sufficient water for the treatment of 2Mt per annum of ore.
The comparison does not include any assessment of the potential resistance for the resettlement of either the Bouro or Sona villages but a simple estimation of resettlement and potential compensation costs based on the population on each village.
To provide a robust solution, the Ninga groundwater aquifer is a favoured solution and should be investigated further.
Both the tailings deposition and the water supply need further investigation before the project can proceed to the next phase the robustness of these areas is one of the key areas for the project.
20.11 Capital Costs
The Capital Costs for the infrastructure and services are as per Figures 20-10, 20-11, 20-12 and 20-12. The following assumptions were made:-
- Option B3 is used for the Access Road capital costs.
- The Mine Water Supply is via the Groundwater Aquifer option.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 20-10 : Services - Capital Cost Estimate Summary Level 3 (2Mtpa )
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Power Supply (Plant & Accom) | | | | $14,997,413.00 |
CAT 6M25 | Lot | 1 | | - |
CAT 3512B HD | Lot | 1 | | - |
CAT C18 Set for Camp | Lot | 1 | | - |
Used Gensets for Construction Period | Lot | 1 | | - |
Set Accessories | Lot | 1 | | - |
Delivered to Site | Lot | 1 | $10,637,340.00 | $10,637,340.00 |
Fire Fighting Equipment | Lot | 1 | $371,070.00 | $371,070.00 |
Civil Works, buildings | Lot | 1 | $2,226,420.00 | $2,226,420.00 |
Transportation | Lot | 1 | $896,752.50 | $896,753.00 |
Local Labour | Lot | 1 | $865,830.00 | $865,830.00 |
Contingency | | | 7.5% | $1,124,806.00 |
Water Supply | | | | $2,203,435.00 |
Piping supply | Lot | 1 | $1,321,000.00 | $1,321,000.00 |
Pump Station | Lot | 1 | $223,568.00 | $223,568.00 |
Installation | Lot | 1 | $350,758.00 | $350,758.00 |
Transport | Lot | 1 | $308,109.00 | $308,109.00 |
Contingency | | | 7.5% | $165,258.00 |
Fuel | Lot | 1 | $10,000.00 | $10,000.00 |
General | | | | $1,137,963.00 |
Power & water supply Import Duty, PSI & Service | | | | |
Fees | | | | $1,137,963.00 |
Contingency | | | 2.5% | $28,449.00 |
Subtotal Services | | | | $18,348,811.00 |
Figure 20-11 : Services - Capital Cost Estimate Summary Level 3 (1.5Mtpa )
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Power Supply (Plant & Accom) | | | | $12,747,801.00 |
CAT 6M25 | Lot | 1 | | - |
CAT 3512B HD | Lot | 1 | | - |
CAT C18 Set for Camp | Lot | 1 | | - |
Used Gensets for Construction Period | Lot | 1 | | - |
Set Accessories | Lot | 1 | | - |
Delivered to Site | Lot | 1 | $10,637,340.00 | $9,041,739.00 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
| | | | |
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Fire Fighting Equipment | Lot | 1 | $371,070.00 | $315,410.00 |
Civil Works, buildings | Lot | 1 | $2,226,420.00 | $1,892,457.00 |
Transportation | Lot | 1 | $896,752.50 | $762,240.00 |
Local Labour | Lot | 1 | $865,830.00 | $735,956.00 |
Contingency | | | 7.5% | $956,085.00 |
Water Supply | | | | $2,203,435.00 |
Piping supply | Lot | 1 | $1,321,000.00 | $1,321,000.00 |
Pump Station | Lot | 1 | $223,568.00 | $223,568.00 |
Installation | Lot | 1 | $350,758.00 | $350,758.00 |
Transport | Lot | 1 | $308,109.00 | $308,109.00 |
Contingency | | | 7.5% | $165,258.00 |
Fuel | Lot | 1 | $10,000.00 | $10,000.00 |
General | | | | $1,137,963.00 |
Power & water supply Import Duty, PSI & Service | | | | |
Fees | | | | $992,165.00 |
Contingency | | | 2.5% | $24,804.00 |
Subtotal Services | | | | $15,953,401.00 |
Figure 20-12 : Services - Capital Cost Estimate Summary Level 3 (1.0Mtpa )
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Power Supply (Plant & Accom) | | | | $9,392,709.00 |
CAT 6M25 | Lot | 1 | | - |
CAT 3512B HD | Lot | 1 | | - |
CAT C18 Set for Camp | Lot | 1 | | - |
Used Gensets for Construction Period | Lot | 1 | | - |
Set Accessories | Lot | 1 | | - |
Delivered to Site | Lot | 1 | $6,122,655.00 | $6,122,655.00 |
Fire Fighting Equipment | Lot | 1 | $278,303.00 | $278,303.00 |
Civil Works, buildings | Lot | 1 | $1,669,815.00 | $1,669,815.00 |
Transportation | Lot | 1 | $672,564.00 | $672,564.00 |
Local Labour | Lot | 1 | $649,373.00 | $649,373.00 |
Contingency | | | 7.5% | $704,453.00 |
Water Supply | | | | $2,203,435.00 |
Piping supply | Lot | 1 | $1,321,000.00 | $1,321,000.00 |
Pump Station | Lot | 1 | $223,568.00 | $223,568.00 |
Installation | Lot | 1 | $350,758.00 | $350,758.00 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
| | | | |
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Transport | Lot | 1 | $308,109.00 | $308,109.00 |
Contingency | | | 7.5% | $165,258.00 |
Fuel | Lot | 1 | $10,000.00 | $10,000.00 |
General | | | | $725,434.00 |
Power & water supply Import Duty, PSI & Service | | | | |
Fees | | | | $725,434.00 |
Contingency | | | 2.5% | $18,136.00 |
Subtotal Services | | | | $12,331,579.00 |
Figure 20-3 : Infrastructure - Capital Cost Estimate Summary Level 3
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Site Earthworks & Access Road | | | | $810,192.00 |
General Access Road Earthworks | Lot | 1 | | $611,192.00 |
Pipe Culvert Crossing | Lot | 1 | | $5000.00 |
French Crossing | Lot | 1 | | $19,000.00 |
Estimated Detailed Design Engineering | Lot | 1 | | $60,000.00 |
Estimated Technical Site Management | Lot | 1 | | $70,000.00 |
Preliminary & General | Lot | 1 | | $25,000.00 |
Site Roads | m | 1,000.00 | $20.00 | $20,000.00 |
Contingency | | | 15.0% | $121,259.00 |
Accommodation | | | | $1,012,070.00 |
Construction/Senior Accommodation sub-totals | | | | $791,118.00 |
6 Man Unit | | | $314,880.00 | $314,880.00 |
Camp Office | | | $34,398.00 | $34,398.00 |
Camp Store | | | $36,750.00 | $36,750.00 |
Camp Mess | | | $259,200.00 | $259,200.00 |
Camp Power house | | | $19,110.00 | $19,110.00 |
Camp Staff Toilet | | | $10,500.00 | $10,500.00 |
Light Vehicle Workshop | | | $35,280.00 | $35,280.00 |
Security Wall | | | $28,000.00 | $28,000.00 |
Water Treatment | Lot | 1 | $35,000.00 | $35,000.00 |
Bore water distribution | m | 4,000 | $4.50 | $18,000.00 |
Management Accommodation sub-totals | | | | $220,952.00 |
Mine Manager House (3 BR) | | | $60,352.00 | $60,352.00 |
Self-Contained Unit | | | $160,600.00 | $160,600.00 |
Contingency | | | 12.5% | $126,509.00 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
| | | | |
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Buildings | | | | $619,704.00 |
Administration Offices | | | $191,100.00 | $132,300.00 |
Changehouse | | | $75,000.00 | $75,000.00 |
Clinic & Training room | | | $66,000.00 | $66,000.00 |
Laboratory | | | $29,400.00 | $29,400.00 |
Plant Workshop | | | $73,500.00 | $73,500.00 |
Store (incl.' in Plant Workshop) | | | | - |
Reagent Store (incl.' in Plant Workshop) | | | | - |
Security/Gate House | | | $10,584.00 | $10,584.00 |
Plant Control Room (incl.' in plant) | | | $19,110.00 | $19,110.00 |
MCC Building (incl.' in plant) | | | | - |
Power House | | | $44,100.00 | $44,100.00 |
Junior Staff Mess & Kitchen | | | $120,960.00 | $120,960.00 |
Ablutions | | | $48,750.00 | $48,750.00 |
Contingency | | | 12.5% | $77,463.00 |
Equipment & Fittings | | | | $1,275,676.00 |
Office equipment & furniture : See - "Equip & Fittings" | | | | $152,128.00 |
Communications : See - "Equip & Fittings" | | | | $21,228.00 |
Mobile Equipment : See - "Equip & Fittings" | | | | $867,118.00 |
Safety, First Aid & Fire Protection | Lot | 1 | $15,000.00 | $15,000.00 |
Lab & Other Equipment : See - "Equip & Fittings" | | | | $220,201.00 |
Contingency | | | 10.0% | $159,459.00 |
Subtotal Pre-Production | | | | $3,717,642.00 |
20.12 Operating Costs
The operating costs for the infrastructure and power have been generated and are predicted to be as per the Figure 20-14 below. The power costs generated have been based on a Bond Work Index of 10, the testwork which has been carried out thus far indicates a higher indices, we believe this to be skewed and have therefore looked at similar ores. The testwork being carried out will confirm this assumption.
Figure 20-14 : Processing Costs
Throughput | Wet Tailings System | Dry Tailings System |
| | | | |
| Cost/tonne milled | Annual Cost | Cost/tonne milled | Annual Cost |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | |
| | |
Throughput | Wet Tailings System | Dry Tailings System |
| | | | |
| Cost/tonne milled | Annual Cost | Cost/tonne milled | Annual Cost |
| | | | |
2 Million tonnes per annum | $4.34 | $8,673,853 | $4.34 | $8,673,853 |
| | | | |
1.5 Million tonnes per annum | $4.53 | $6,785,586 | $4.53 | $6,785,586 |
| | | | |
1 Million tonnes per annum | $5.01 | $5,009,055 | $5.01 | $5,009,055 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
21 MANPOWER
The manpower complement is summarized in Figure 19.9.1. The total mine complement is 117. The mine will use company employees for all aspects of processing, maintenance, general and administration services. Contractors will operate the mining and catering facility. The mine will be managed by a senior management team led by the mine manager, the team will comprise of:-
Mine Manager
Plant Manager
Engineering Manager
Purchasing Manager
Production Manager
All other supervising staff, employees and contractors will report to or through these positions.
21.1 General & Administration
The General Services & Administration include all personnel not involved in the mining, processing or engineering departments. The department comprises:- procurement, human resources, security, accommodation & catering and will be responsible for providing managerial, accounting, procurement, warehousing and personnel related functions to the mine. They will also be responsible for all permits & licence applications and insurance matters.
All Expatriates and non locals will stay in the mine camp while the local employees will be bussed to and from work on a daily basis. Expatriates will work on a rotation of 10 weeks on mine with 2 weeks on out of country leave. Process plant staff will work 12hour shifts for 12 days with 3 days off.
Expatriate salaries are based on international ranges, the Burkina Faso salaries are based on comparable ranges for similar types of work elsewhere in the country.
All personnel except the contractor's staff will be the directly employed by the mine company. As the project progresses a number of senior management positions, initially staffed by expatriates will be staffed by Burkina Faso citizens.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
21.2 Ouagadougou Office
The mine will be fully autonomous and therefore the operation of the office in Ouagadougou will have no implications.
21.3 Capital Costs
The capital costs covering the vehicles, buildings, furniture and equipment used by the General and Administration staff are included in the infrastructure and services capital expenditures. The total vehicle cost is $867,118
21.4 Operating Costs
The operating costs for this area are included in the operating costs for the infrastructure and services operating costs with the labour portion included with the processing operating costs.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
22 ENVIRONMENTAL CONSIDERATIONS
22.1 Environmental study requirements
Figure 22-1 illustrates the environmental studies required at each phase of the development of the mine. The scanning study was completed in April 1999. To advance to Feasibility Level a scoping study followed by a full Environmental Impact Assessment with Environmental Management Plan is being undertaken by Socrege SA of Burkina Faso.
Figure 22-1 : Required Environmental Studies
Project stages | Environmental | Objectives |
| studies | |
Pre-feasibility | Scanning study | Identify environmental opportunities and constraints |
| | Input into project planning decisions |
| | Identify any obvious fatal flaws (environmental problems that are impossible |
| | or prohibitively expensive to manage and render the project unacceptable |
| | Identify applicable environmental legislation (including authorisations/ |
| | permits) and the requirements for planning |
| | Define the scope of succeeding environmental work as far as is possible |
Feasibility | Scoping | Identify issues on which attention needs to be focused in the succeeding EIA |
| | Define the scope of specialist investigation of these issues in the EIA stage |
| | Identify feasible alternatives that require further investigation |
| | Identify IAPs and involve them in the scoping process (inform them of the |
| | project, encourage them to share relevant information on the project |
| | environment, enable them to identify opportunities that may be created by the |
| | project and express concerns they may have about the project) |
| | Note that IAP involvement in the scoping of the EIA is considered essential . |
| EIA | Input into project planning decisions, including the decision whether the |
| | project is feasible |
| | Develop an environmental management plan (EMP). In countries where there |
| | is a requirement to obtain environmental authorisation, this plan becomes |
| | legally binding when authorisation is granted. The plan, therefore, defines the |
| | "conditions of authorisation of the development". In future complementary |
| | auditing legislation will be introduced to check compliance with the EMP. |
| | To achieve the above, specialist investigations of the issues identified in the |
| | scoping stage are undertaken. The scope of specialist investigation required is |
| | defined in the scoping stage. The specialist investigations will involve some |
| | baseline data collection, but are far more focused on predicting potential |
| | impacts and identifying management measures than defining the pre-mining |
| | environment in detail. |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | |
| | |
Project stages | Environmental | Objectives |
| studies | |
Detailed design | Baseline | It is important that the baseline information collection is focused and that no |
| investigations | time and effort is wasted collecting information which will be of no value at a |
| | later stage. The modern view is that baseline investigations should happen |
| | after the environmental assessment. The purpose of the baseline investigations |
| | is to define the conditions in the pre-development environment as precisely as |
| | possible. The monitoring data collected in the construction, operational and |
| | closure phases can then be compared against the baseline. |
| | Often, when the baseline data is collected before the potential impacts are |
| | understood, the wrong data is collected. |
| | The baseline investigations can also be viewed as the start of the impact |
| | monitoring programmes. |
Construction | Implement | Achieve environmental management objectives defined in the environmental |
| environmental | policy and EMP (environmental management needs to be integrated into the |
| management | organisation's management system) |
| | Monitor implementation of environmental management |
| Monitoring and | Monitor impacts / the effectiveness of management measures in mitigating |
| auditing | impacts |
| | Audit environmental compliance (compliance with conditions of |
| Closure planning | environmental authorisation) |
| | Audit environmental performance (the effectiveness of the organisations |
| | management system in ensuring environmental management performance |
| | Throughout the life of the operation check that the closure objectives are |
| | clearly defined, the monitoring data collected will be meaningful at closure |
| | and that management measures are implemented timeously to ensure that |
| | environmental liabilities at closure are negligible. |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
23 CONSTRUCTION MANAGEMENT AND SCHEDULE
Two construction management teams will be engaged, one will construct the process plant and one to construct the infrastructure and services. A site manager will report to the project manager and will have the following duties and responsibilities:-
Primary interface between head office and site personnel.
Responsibility for the construction and schedule.
Ensure efficient and effective relationship with the community.
Cost management of site.
The site manager will be assisted by the following support staff:-
Camp Manager
Safety Officer
Admin & HR Officer
Planning Manager
Each area will have a separate construction area manager who will report to the site manager and will take responsibility for all issues within their areas. The following senior supervisory personnel will assist each construction area manager and will manage the separate construction functions.
Civils who will manage the appointed civil contractor.
Structural who will manage the appointed Steelwork erection contractor.
Mechanical who will manage the appointed Mechanical erection contractor.
Electrical who will manage the appointed Electrical installation contractor.
Instrumentation who will manage the appointed C & I installation contractor.
The construction crew will hand over the plant and infrastructure to the commissioning crew a cold commissioned plant.
23.1 Schedule
The proposed Gantt Chart showing the project execution plan is included in the appendices. The Key dates are summarised below in Figure 23-1:-
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 23-1 : Schedule
Activity | Milestone Date |
Raising of Finance | Week 1 to Week 8 |
Notice of EPCM Award | Week 8 |
Plant Design | Week 9 to Week 31 |
Order Long Lead Equipment incl. Mill, Power Plant etc | Week 9 |
Procurement | Week 9 to Week 47 |
Civil Contractor Mobilisation & Site establishment | Week 22 |
Start of Infrastructure Construction | Week 9 |
Start of Process Plant Construction | Week 24 |
Power Plant Commissioning | Week |
Plant Commissioning | Week 56 |
First Ore to Plant | Week 57 |
First Gold Pour | Week 59 |
23.2 Capital Costs
Figure 23-2 shows the capital cost indicated as "owner's costs" for the provision of the construction team and equipment to build the mine. The total cost for the "owners costs" are $2,272,620.00.
Figure 23-2 : Owner's Costs - Capital Cost Estimate Summary Level 3
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Pre-Production Costs | | | | $1,284,620.00 |
Pre-Production Labour : See "Owners PreProd | | | | |
Sheet" | | | | $613,266.00 |
Regional Office Support : See "Owners PreProd | | | | |
Sheet" | | | | $221,599.00 |
Insurances : See "Owners PreProd Sheet" | | | | $85,696.00 |
Accommodation & messing : See "Owners Admin | | | | |
Contract Sheet" | | | | $93,259.00 |
Contract Security : See "Owners Admin Contract | | | | |
Sheet" | | | | $20,280.00 |
Mobile Equipment Expenses : See "Owners Mob | | | | |
Equip Sheet" | | | | $105,312.00 |
Licence Fees | 1 | Lot | | $50,000.00 |
Site power generation | 1 | Lot | | $30,760.00 |
Pre-Hire Medicals | 1 | Lot | | $9,907.00 |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | | | |
| | | | |
Cost Area Services | Unit | Quantity | Rate | Amount (US$) |
Communications | 1 | Lot | | $23,140.00 |
Air Transport | 1 | Lot | | $22,500.00 |
Public Relations | 1 | Lot | | $9,000.00 |
Contingency | | | 12.5% | $160,578.00 |
Working Capital | | | | $988,000.00 |
Working Capital | 2 | mths | $988,000.00 | $988,000.00 |
Gold Credit | 2 | mths | | $0.00 |
Contingency | | | 10.0% | $98,800.00 |
Legal & Audit Fees, Financing Charges & Capitalised | | | | |
Interest | | | | $400,000.00 |
Contingency | | | 10.0% | $40,000.00 |
Subtotal Owner's Costs | | | | $2,672,620.00 |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
24 CAPITAL AND OPERATING COST ESTIMATES
24.1 Capital Costs
The capital cost estimate includes for all site preparation, infrastructure and facilities construction, fixed and mobile equipment for the processing plant and services. The capital estimate also includes for the camp and catering for the employers construction and project team as well as personal safety equipment and monitoring from head office and relevant consultants. The capital estimates for the various scenario's are summarised in Figures 24-1 to 24-6.
Taxation implications and duties are not clear at the time of writing this report and have therefore been included for at the rates ruling at the time of the report. No cognisance has been taken of any tax rebates, tax deals or duty reductions.
Figure 24-1 : Dry Tailings System - 2.0 MTPA Capital Cost Estimate: Summary Level 1
Cost Area | | Capital Cost US$ |
Mining | | $89,097 |
Processing | | $20,326,745 |
Services | | $18,348,811 |
Infrastructure | | $3,857,741 |
| Direct Capital Subtotal | $42,622,394 |
EPCM | 15% | $6,393,359 |
Owners Costs | | $2,626,223 |
| Direct and Indirects Subtotal | $51,641,976 |
Contingency | 8% | $3,932,614 |
PROJECT TOTAL | | $55,574,590 |
Rehab Capital | | $792,739 |
| | |
Figure 24-2 : Wet Tailings System - 2.0 MTPA Capital Cost Estimate: Summary Level 1 |
|
Cost Area | | Capital Cost US$ |
Mining | | $89,097 |
Processing | | $20,227,886 |
Services | | $18,348,811 |
Infrastructure | | $3,717,642 |
| Direct Capital Subtotal | $42,383,436 |
EPCM | 15% | $6,357,515 |
Owners Costs | | $2,672,620 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | |
| | |
Cost Area | | Capital Cost US$ |
| Direct and Indirects Subtotal | $51,413,571 |
Contingency | 8% | $3,952,149 |
PROJECT TOTAL | | $55,365,720 |
Rehab Capital | | $839,068 |
| | |
Figure 24-3 : Wet Tailings System - 1.5 MTPA Capital Cost Estimate: Summary Level 1 |
|
Cost Area | | Capital Cost US$ |
Mining | | $89,097 |
Processing | | $15,457,614 |
Services | | $15,953,401 |
Infrastructure | | $3,717,642 |
| Direct Capital Subtotal | $35,367,021 |
EPCM | 15% | $5,282,663 |
Owners Costs | | $2,672,620 |
| Direct and Indirects Subtotal | $43,173,037 |
Contingency | | $3,351,180 |
PROJECT TOTAL | | $46,524,217 |
Rehab Capital | | $839,068 |
| | |
Figure 24-4 : Dry Tailings System - 1.5 MTPA Capital Cost Estimate: Summary Level 1 |
|
Cost Area | | Capital Cost US$ |
Mining | | $89,097 |
Processing | | $15,606,881 |
Services | | $15,953,401 |
Infrastructure | | $3,717,642 |
| Direct Capital Subtotal | $35,367,021 |
EPCM | 15% | $5,305,053 |
Owners Costs | | $2,672,620 |
| Direct and Indirects Subtotal | $43,344,694 |
Contingency | | $3,370,912 |
PROJECT TOTAL | | $46,715,606 |
Rehab Capital | | $792,739 |
Figure 24-5 : Wet Tailings System - 1.0 MTPA Capital Cost Estimate: Summary Level 1
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Cost Area | | Capital Cost US$ |
Mining | | $89,097 |
Processing | | $12,656,233 |
Services | | $12,331,579 |
Infrastructure | | $3,717,642 |
| Direct Capital Subtotal | $35,367,021 |
EPCM | 15% | $4,319,182 |
Owners Costs | | $2,672,620 |
| Direct and Indirects Subtotal | $35,786,353 |
Contingency | | $2,841,005 |
PROJECT TOTAL | | $38,627,358 |
Rehab Capital | | $839,068 |
| | |
Figure 24-6 : Dry Tailings System - 1.0 MTPA Capital Cost Estimate: Summary Level 1 |
|
Cost Area | | Capital Cost US$ |
Mining | | $89,097 |
Processing | | $13,050,809 |
Services | | $12,331,579 |
Infrastructure | | $3,717,642 |
| Direct Capital Subtotal | $29,194,127 |
EPCM | 15% | $4,379,119 |
Owners Costs | | $2,257,299 |
| Direct and Indirects Subtotal | $35,830,545 |
Contingency | | $2,842,440 |
PROJECT TOTAL | | $38,672,985 |
Rehab Capital | | $669,778 |
24.2 Operating Costs
The operating costs have been calculated on the basis of 2, 1.5 & 1 million tonnes milled per annum and are summarised in tables 24.2.1 to 24.2.6 and are based on CIL plants. The costs are skewed in terms of power, which is a major component, due to the unexpectedly high Bond Work Index stated in the previous test work. The test work being carried out in the next campaign will clarify this and should result in lower operating costs.
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 24-7 : 2.0 MTPA Dry Tailings System
Item | Annual Cost (US $) | Unit Cost (US $ / Tonne Milled) |
Consumables | $5,251,600.00 | $2.63 |
Labour | $2,009,562.00 | $1.00 |
Power | $6,143,365.00 | $3.07 |
Infrastructure | $2,530,488.00 | $1.27 |
Tailings | $903,653.00 | $0.45 |
Total | $16,838,668.00 | $8.42 |
No allowance has been made for savings in cyanide or possible reduction in CAPEX due to reduced water usage.
Figure 24-8 : 2.0 MTPA Wet Tailings System
Item | Annual Cost (US $) | Unit Cost (US $ / Tonne Milled) |
Consumables | $5,251,600.00 | $2.63 |
Labour | $2,009,562.00 | $1.00 |
Power | $6,143,365.00 | $3.07 |
Infrastructure | $2,530,488.00 | $1.27 |
Tailings | $0.00 | $0.00 |
Total | $15,935,015.00 | $7.97 |
Figure 24-9 : 1.5 MTPA Dry Tailings System
Item | Annual Cost (US $) | Unit Cost (US $ / Tonne Milled) |
Consumables | $3,960,800.00 | $2.64 |
Labour | $2,009,562.00 | $1.34 |
Power | $4,222,618.00 | $2.82 |
Infrastructure | $2,562,968.00 | $1.71 |
Tailings | $995,153.00 | $0.66 |
Total | $12,755,948.00 | $9.17 |
No allowance has been made for savings in cyanide or possible reduction in CAPEX due to reduced water usage.
Figure 24-10 : 1.5 MTPA Wet Tailings System
Item | Annual Cost (US $) | Unit Cost (US $ / Tonne Milled) |
Consumables | $4,838,300.00 | $3.23 |
Labour | $2,009,562.00 | $1.34 |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
| | |
| | |
Item | Annual Cost (US $) | Unit Cost (US $ / Tonne Milled) |
Power | $4,222,618.00 | $2.82 |
Infrastructure | $2,562,968.00 | $1.71 |
Tailings | $0.00 | $0.00 |
Total | $13,633,448.00 | $9.10 |
| | |
Figure 24-11 : 1.0 MTPA Dry Tailings System |
| |
Item | Annual Cost (US $) | Unit Cost (US $ / Tonne Milled) |
Consumables | $2,648,200.00 | $2.65 |
Labour | $2,022,062.00 | $2.02 |
Power | $2,508,391.00 | $2,51 |
Infrastructure | $2,500,664.00 | $2.50 |
Tailings | $280,367.00 | $0.28 |
Total | $9,959,684.00 | $9.96 |
| | |
Figure 24-12 : 1.0 MTPA Wet Tailings System |
| |
Item | Annual Cost (US $) | Unit Cost (US $ / Tonne Milled) |
Consumables | $2,648,200.00 | $2.65 |
Labour | $2,022,062.00 | $2.02 |
Power | $2,508,391.00 | $2.51 |
Infrastructure | $2,500,664.00 | $2.50 |
Tailings | $0.00 | $0.00 |
Total | $9,679,317.00 | $9.68 |
24.3 Sustaining Capital
Sustaining and equipment rebuild and replacement costs have been estimated assuming a mine life of 7 years and a closure provision of $25000 per annum. The total cost would be $575900 over the 7 year life of mine.
This assumes the mine staff carries out the raising of the tailings dam walls and the contract mining scenario is maintained.
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
25 MARKETS AND CONTRACTS
The sale of Gold will be made directly to the refiners with the revenue being raised at that point. It is not anticipated that forward sales of gold will be undertaken unless it is required as part of a financing package by the lender.
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
26 INTERPRETATION AND CONCLUSIONS
26.1 Exploration and Resource Potential
The mesothermal genetic model for gold mineralization within the Belahouro Gold Project is well understood and is consistent with the majority of Archaean and Proterozoic terrains worldwide, including the Birimian Series of West Africa. Additional work is required to understand the paragenesis within any given deposit and determine possible structural or magmatic relationships between the various zones of mineralization.
The potential to expand the resource base within the Belahouro Project (Inata) remains significant, with several high priority areas identified. A commitment to on-going exploration is highly likely to increase the resource base, thereby increasing the projected life of the proposed CIL operation.
26.2 Data Adequacy and Reliability
The sampling procedures adopted for all exploration activities are generally considered to be representative and unbiased. Samples afforded by diamond coring within the oxide zone are of low quality, however the recoveries generated by RC drilling are of high quality.
Reproducibility is evident in the field duplicate RC analyses completed during the Goldbelt drilling programs. RC sampling and sample preparation continue to require close supervision to ensure adequate representivity.
Umpire assaying is currently being completed with 5% of the mineralized intercepts being investigated. This procedure will enable a final review of the dataset.
RSG Global has completed extensive database verification and, while errors were identified and corrected prior to resource estimation, the database is now considered to meet accepted industry standards.
The Mineral Resource statement determined for Inata as at 30 September 2005 have been prepared and reported by RSG Global in accordance with Canadian National Instrument 43-101, 'Standards of Disclosure for Mineral Projects' of February 2001 (the Instrument) and the classifications adopted by CIM Council in August 2000. Furthermore, estimation and classification is consistent with the Australasian Code for the 'Reporting of Identified Mineral Resources and Ore Reserves' of September 1999 (the Code) as prepared by the Joint Ore Reserves Committee of the Australasian Institute of Mining and Metallurgy, Australian Institute of Geoscientists and Minerals Council of Australia (JORC).
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
27 RECOMMENDATIONS
It is recommended that Goldbelt:-
Collect high confidence topographic data.
Collect a spatially representative bulk density database.
Undertake extensional drilling to better define the down dip and along strike extents of the Inata mineralization.
Review potential to expand the resource base within the Belahouro Project
Proceed with the pre feasibility study. This study should investigate the viability of establishing a moderate tonnage mining and CIL processing operation to encompass both the oxide and primary resources and possible heap leach operation.
If not already available, a suite of multi-element assays be collected for metallurgical and environmental investigations. This can readily be achieved by assay of umpire assay pulps.
Ongoing refinement of the geological model is completed.
Investigate methods to reduce capital and working costs by considering used equipment, leasing accommodation, reducing power demand, and a Joint Venture (JV) with power/fuel supplier.
Further metallurgical test work is carried out to establish robust parameters which should reflect in lower operating costs and better recoveries.
Further investigation is carried out to establish the optimum water supply to the mine.
- Further investigation is carried out to establish the optimum road alignment to the mine.
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
28 REFERENCES AND SOURCES OF INFORMATION
BHP Limited | Various internal reports and internal documentation. |
| |
Cavey G, Gunning D,. | December 2004 Amended summary report on the Belahouro Project and |
| Kari-Karba Project. Report by Orequest |
| |
Nicholls B. | Inata Deposit - Site Visit and Data Review. Report by RSG Global. |
| |
Resolute Mining Limited | Various internal reports and internal documentation. |
| |
RSG Global Pty Ltd. | May 2004 Resource Summary Belahouro West Africa Gold Project (Inata), |
| Burkina Faso, - prepared on behalf of Goldbelt Resources Limited. |
| |
RSG Global Pty Ltd. | March 2005 Independent Technical Report Belahouro West Africa Gold |
| Project (Inata), Burkina Faso, - prepared on behalf of Goldbelt Resources |
| Limited. |
| |
SRK Ltd. | April 1999 Pre-feasibility Biophysical and Social Scan Inata Deposit, Soum |
| Province Burkina Faso - prepared for BHP-Resolute Joint Venture |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
29 SIGNATURE PAGE
Prepared By : | | | |
| | | |
| | | |
| | Malcolm Hope | (GBM MEC Ltd) |
| | | |
| | | |
Reviewed By : | | | |
| | | |
| | | |
| | Crag Bailey | (GBM MEC Ltd) |
| | | |
| | | |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
30 CERTIFICATES
30.1 GBM - CERTIFICATE OF QUALIFICATION - Michael Short
I, Michael Short retained for this Study by GBM Minerals Engineering Consultants. Limited. Regal House, London Road, Twickenham, Middlesex, TW1 3QS, hereby stale that;
I am a Consulting Engineer employed by GBM Minerals Engineering Consultants Limited (GBM).
I am a graduate of the University of New South Wales, Australia, with a degree in Civil Engineering in 1976.
I have practiced my profession continuously for some 30 years since graduating, have variously managed, authored and co-authored several mining feasibility studies, feasibility audits and due diligence review reports for a variety of mineral deposit types in many different countries and am a "qualified person" for the purpose of National instrument 43-101.
I am a Chartered Engineer (UK and Australia) and a Fellow of the Institute of Materials, Minerals and Mining (UK), a Fellow of the Australasian Institute of Mining and Metallurgy and a Member of the Institution of Engineers, Australia.
I am co-author and reviewer of the report "Analysis of Technical Criteria for Belahouro Gold Mine Project", which is based on
- a study of all available technical reports, sampling and metallurgical test data on the project provided to GBM;
- data and quotations provided by minerals processing equipment manufacturers and suppliers:
I was responsible for the review of the civil engineering and plant engineering aspects of the work and input into the review of the final report.
I am not aware of any material fact or material change with respect to the subject matter of this report, which is not reflected in this report, the omission or disclosure of which makes the technical report misleading.
I do not own or expect to receive any interest (direct, indirect or contingent) in the property described herein, nor in the securities of Goldbelt Resources Limited.
I have not had any prior involvement in the property which is the subject of this report
The report has been prepared in compliance with National Instrument 43-101 and Form 43-101F1 and I have read this Instrument and Form.
January 2006 |  |
Michael Short |
BE, FIMMM CEng, FAusIMM (CP), MIEAust CPEng |
|
Managing Director |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
30.2 GBM - CERTIFICATE OF QUALIFICATION - Alex Mitchell
I Alex Mitchell retained for this Study by GBM Minerals Engineering Consultants Limited, Regal House, London Road, Twickenham, Middlesex, TW1 3QS, hereby state that:
I am a Consulting Metallurgist on contract to GBM Minerals Engineering Consultants Limited (GBM).
I am a graduate of the Heriot-Watt University, Edinburgh, UK, with an honours degree in Applied Chemistry gained in 1966.
I have practised my profession continuously for some 40 years since graduating, have variously managed, authored and co-authored several mining feasibility studies, feasibility audits and due diligence review reports for a variety of mineral deposit types in many different countries and am a "qualified person" for the purpose of National Instrument 43-101.
I am a Chartered Engineer (UK) and a member of the Insitute of Materials, Minerals and Mining (UK).
I am co-author and reviewer of the report "Analysis of Technical Criteria for Belahouro Gold Mine Project",
- a study of all available technical reports, sampling and metallurgical test date on the project provided to GBM;
- data and quotations provided by mineral processing equipment manufacturers and suppliers:
I was responsible for the review of the metallurgical test procedures, the resultant data and interpretations, design of the process flowsheet and input into the review of the final report.
I am not aware of any material fact of material change with respect to the subject matter of this report, which is not reflected in this report, the omission or disclosure of which makes the technical report misleading.
I do not own or expect to receive any interest (direct, indirect or contingent) in the property described herein, nor in the securities of Goldbelt Resources Limited.
I have not had any prior involvement in the property which is the subject of this report.
The report has been prepared in compliance with National Instrument 43-101 and form 43-101F1 and I have read this instrument and Form
January 2006

Alex Mitchell
BSc (Hons), CEng MIMMM
Principal Metallurgist
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
30.3 AMEC - CERTIFICATE OF QUALIFICATION - Ciaran Molloy
I Ciaran Molloy, of AMEC Earth & Environmental, Ashford, Kent, as a contributor to the engineering elements of the report, entitled "Analysis of Technical Criteria for the Belahouro Gold Mine Project, Burkina Paso" dated 2 December 2005 on the Belahouro Gold property of Goldbelt Resources Ltd., hereby state that:
- I have a Civil Engineering Bachelor of Science (BSc) degree from the University of Manchester Institute of Science and Technology (UMIST), 1979, and am an Associate of the University.
I currently maintain membership with the Institution of Civil Engineers, the Institute of Materials, Minerals and Mining and the Association of Mining Analysts.
- I have practiced my profession continuously within the international mining industry for over 26 years, and have designed, project managed and site supervised independent technical audits, studies and civil engineering projects within waste tailings disposal, mine water supply, heap leach and access roads,
- I confirm that 1 am familiar with West Africa and have worked within the region for over 20 years.
I confirm, that I have visited the project site as an independent engineer and that the conclusions and recommendations pertaining to the Tailings Impoundment, Mine Water and Access Road schemes are based on the best information available at the time of report contribution.
- I confirm that I have no commercial shareholding within Goldbelt Resources and will not receive any gratuity (direct, indirect or contingent) with respect to the property.
January 2006
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Ciaran Molloy
Associate Director - Engineering
AMEC Earth & Environmental, Ashford, UK
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
30.4 RSG Global - CERTIFICATE OF QUALIFIED PERSON - Harry Warries
As a contributor to the report entitled "Analysis of Technical Criteria for the Belahouro Gold Mine Project, Burkina Faso" dated 2 December 2005, on the Belahouro Gold property of Goldbelt Resources Ltd (the "Study"), I hereby state;-
My name Is Harry Warries and I am a Mining Engineer with the firm of RSG Global Pty, Ltd, of 1162 Hay Street, West Perth, 6005, Western Australia. My residential address is 10 Pritchard Street, Kewdale, 6105, Western Australia.
I am a practising as a professional engineer registered with the Australasian Institute of Mining and Metallurgy (AusIMM) and the Society of the American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc.
- I am a graduate of Delft University of Technology and hold a Masters in Mining Engineering degree (1989),
- I have practiced my profession continuously since 1990.
- I am a "qualified person" as that term is defined in National Instrument 43-101 (Standards of Disclosure for Mineral Projects) (the "Instrument").
Whilst I have not personally visited the Belahouro Gold Property, technical staff of RSG Global have visited the property, I have performed consulting services and reviewed files and data supplied by Goldbelt Resources Ltd between June 2005 and December 2005.
- I prepared sections 18.1 to 18.11 of the Study,
- I am not aware of any material fact or material change with respect to' the subject matter of the Study, which is not reflected in the Study, the omission of which would make the Study misleading.
- I am independent of Goldbelt Resources Ltd pursuant to section 1.5 of the Instrument.
- I have read the National instrument and Form 43-101F1 (the "Form") and the Study has been prepared in compliance with the Instrument and the Form.
I do not have nor do I expect to receive a direct or indirect interest in the Belahouro Gold Project property of Goldbelt resources Ltd, and I do not beneficially own, directly or indirectly, any securities of Goldbelt resources Ltd or any associate or affiliate of such company.
Dated at Perth, Western Australia, on 2 December, 2005.

Harry Warries MSc (Mining Engineering)
Senior Mining Engineer
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
30.5 SOCREGE - CERTIFICATE OF QUALIFIED PERSON - Hubert Chailan
As a contributor to the report entitled "Etude d'Impact sur l'Environnement de I'Etude du Projet Industriel Aurifere de Belahouro, Gisement d'lnata" dated 16 December 2005, on the Balahouro Gold property of Goldbelt Resources Ltd (the ''Study"), I hereby state:-
- My name is Hubert Chailan and I am the General Manager of SOCREGE, 01 BP 5374 Ouagadougou 01, Burkina Paso.
I am a graduate in Political Sciences and Public Law of University of Lyon (France). Graduate of 'Centre de Hautes Etudes sur I'Afrique et I'Asie Modernes" (Fondation de Sciences Politiques, Paris (France).
- I haw practiced my current profession continuously since 1993. Previously, I was Independent Consultant in Environment (1989-1993), and Lecturer in Economy and Management (1974- 1989).
- I am a "qualified person" for the purpose of World Bank's expertise in Environment and qualified ISO 14001 for Environmental Management Systems.
- The whole Environmental Impact Study above described was undertaken under my responsibility and I reviewed it entirely.
- I am not aware of any material fact or material change with respect to the subject matter of the Study, which is not reflected in the Study, the omission of which would make the Study misleading.
- I am independent of Goldbelt Resources Ltd pursuant to section 1.5 of the Instrument
I do not have nor do I expect to receive a direct or indirect interest in the Belahouro Gold Project property of Goldbelt resources Ltd, and I do not beneficially own, directly or indirectly, any securities of Goldbelt resources Ltd or any associate or affiliate of such company.
- I have not had any prior involvement in the property which is subject of this report
Dated at Ouagadougou Burkina Faso on 3thd February 2006.

Hubert Chailan
General Manager
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-1 : Inata Field Duplicates
| Au1(X)ppm | Au1(Y)ppm | Units | | Result |
No. Pairs: | 644 | 644 | | Pearson CC: | 0.91 |
Minimum: | 0.00 | 0.01 | g/t | Spearman CC: | 0.91 |
Maximum: | 11.81 | 7.68 | g/t | Mean HARD: | 17.22 |
Mean: | 0.06 | 0.06 | g/t | Median HARD: | 9.09 |
Median | 0.02 | 0.02 | g/t | | |
Std. Deviation: | 0.50 | 0.37 | g/t | Mean HRD: | -0.64 |
Coefficient of | | | | | |
Variation: | 7.77 | 5.86 | | Median HRD | 0.00 |

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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-2 : Inata Field Duplicates- Data Gt 0.1g/t
| Au1(X)ppm | Au1(Y)ppm | Units | | Result |
No. Pairs: | 34 | 34 | | Pearson CC: | 0.98 |
Minimum: | 0.10 | 0.10 | g/t | Spearman CC: | 0.93 |
Maximum: | 11.81 | 7.68 | g/t | Mean HARD: | 11.81 |
Mean: | 0.80 | 0.69 | g/t | Median HARD: | 8.93 |
Median | 0.24 | 0.27 | g/t | | |
Std. Deviation: | 2.02 | 1.36 | g/t | Mean HRD: | -0.76 |
Coefficient of Variation: | 2.52 | 1.98 | | Median HRD | -2.17 |

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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-3 : Blank Data
Blanks
(Standard: 0.01)
Standard: | 0.01 | No of Analyses: | 642 |
Element: | AuFA | Minimum: | 0.01 |
Units: | | Maximum: | 0.38 |
Detection Limit: | - | Mean: | 0.02 |
Expected Value (EV): | 0.01 | Std Deviation: | 0.03 |
E.V. Range: | 0.01 to 0.20 | % in Tolerance | 58.26 % |
| | % Bias | 111.92 % |
| | % RSD | 133.30 % |

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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-4 : Standards Data
Summary
(Standard: STD: 0.416G/T (50G SACHET))
| STD: 0.416G/T (50G | | |
Standard: | SACHET) | No of Analyses: | 11 |
Element: | AuFA | Minimum: | 0.18 |
Units: | | Maximum: | 0.46 |
Detection Limit: | - | Mean: | 0.37 |
Expected Value (EV): | 0.42 | Std Deviation: | 0.07 |
E.V. Range: | 0.37 to 0.46 | % in Tolerance | 54.55 % |
| | % Bias | -9.97 % |
| | % RSD | 19.60 % |

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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-5 : Standards Data
Summary
(Standard: STD: 1.298G/T (50G SACHET))
| STD: 1.298G/T (50G | | |
Standard: | SACHET) | No of Analyses: | 13 |
Element: | AuFA | Minimum: | 0.90 |
Units: | | Maximum: | 1.35 |
Detection Limit: | - | Mean: | 1.19 |
Expected Value (EV): | 1.30 | Std Deviation: | 0.11 |
E.V. Range: | 1.17 to 1.43 | % in Tolerance | 69.23 % |
| | % Bias | -8.70 % |
| | % RSD | 9.54 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-6 : Standards Data
Summary
(Standard: STD: 3.463G/T (50G SACHET))
| STD: 3.463G/T (50G | | |
Standard: | SACHET) | No of Analyses: | 13 |
Element: | AuFA | Minimum: | 2.59 |
Units: | | Maximum: | 3.68 |
Detection Limit: | - | Mean: | 3.27 |
Expected Value (EV): | 3.46 | Std Deviation: | 0.30 |
E.V. Range: | 3.11 to 3.81 | % in Tolerance | 76.92 % |
| | % Bias | -5.45 % |
| | % RSD | 9.19 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-7: Inata Pills-Data Augusts 2005
Pills Aug05
(Standard: HOME 10)
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-8: Inata Pills-Data Augusts 2005
Pills Aug05
(Standard: HOME 25)
Standard: | HOME 25 | No of Analyses: | 32 |
Element: | AuFA1 | Minimum: | 0.01 |
Units: | | Maximum: | 0.37 |
Detection Limit: | - | Mean: | 0.05 |
Expected Value (EV): | 0.05 | Std Deviation: | 0.06 |
E.V. Range: | 0.00 to 0.06 | % in Tolerance | 75.00 % |
| | % Bias | 6.87 % |
| | % RSD | 116.08 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-9: Inata Pills-Data Augusts 2005
Pills Aug05
(Standard: HOME 13)
Standard: | HOME 13 | No of Analyses: | 83 |
Element: | AuFA1 | Minimum: | 0.01 |
Units: | | Maximum: | 3.94 |
Detection Limit: | - | Mean: | 0.38 |
Expected Value (EV): | 0.29 | Std Deviation: | 0.44 |
E.V. Range: | 0.14 to 0.43 | % in Tolerance | 55.42 % |
| | % Bias | 31.45 % |
| | % RSD | 115.28 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-10: Inata Pills-Data Augusts 2005
Pills Aug05
(Standard: PAD22)
Standard: | PAD22 | No of Analyses: | 62 |
Element: | AuFA1 | Minimum: | 0.20 |
Units: | | Maximum: | 3.82 |
Detection Limit: | | Mean: | 1.47 |
Expected Value (EV): | 1.13 | Std Deviation: | 0.53 |
E.V. Range: | 0.56 to 1.69 | % in Tolerance | 70.97 % |
| | % Bias | 30.23 % |
| | % RSD | 35.83 % |

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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-11: Inata Pills-Data Augusts 2005
Pills Aug05
(Standard: S0G9)
Standard: | S0G9 | No of Analyses: | 61 |
Element: | AuFA1 | Minimum: | 0.22 |
Units: | | Maximum: | 8.38 |
Detection Limit: | | Mean: | 4.51 |
Expected Value (EV): | 3.99 | Std Deviation: | 1.56 |
E.V. Range: | 2.00 to 5.99 | % in Tolerance | 83.61 % |
| | % Bias | 12.91 % |
| | % RSD | 34.73 % |

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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-12 : Inata Field Duplicates - August 2005 Data GT 0.1g/t
Field Duplicates Aug05
(All Data)
| AuFA1 | Dup Au1 | Units | | Result |
No. Pairs: | 322 | 322 | | Pearson CC: | 0.96 |
Minimum: | 0.11 | 0.11 | g/t | Spearman CC: | 0.95 |
Maximum: | 14.80 | 11.50 | g/t | Mean HARD: | 10.11 |
Mean: | 1.19 | 1.15 | g/t | Median HARD: | 6.67 |
Median | 0.37 | 0.36 | g/t | | |
Std. Deviation: | 2.14 | 1.97 | g/t | Mean HRD: | 0.96 |
Coefficient of | | | | | |
Variation: | 1.80 | 1.71 | | Median HRD | 1.48 |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-13 : Blank Data - August 2005
Summary Blanks Aug05
(Standard: 0.01)
Standard: | 0.01 | No of Analyses: | 640 |
Element: | AuFA1 | Minimum: | 0.01 |
Units: | | Maximum: | 0.77 |
Detection Limit: | | Mean: | 0.04 |
Expected Value (EV): | 0.01 | Std Deviation: | 0.07 |
E.V. Range: | 0.01 to 0.10 | % in Tolerance | 93.91 % |
| | % Bias | 273.28 % |
| | % RSD | 175.27 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-14 : Standards Data - August 2005
Summary
(Standard: OXA26)
Standard: | OXA26 | No of Analyses: | 195 |
Element: | AuFA1 | Minimum: | 0.06 |
Units: | | Maximum: | 0.12 |
Detection Limit: | | Mean: | 0.09 |
Expected Value (EV): | 0.08 | Std Deviation: | 0.01 |
E.V. Range: | 0.04 to 0.12 | % in Tolerance | 97.95 % |
| | % Bias | 10.58 % |
| | % RSD | 11.37 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-15 : Standards Data - August 2005
Summary
(Standard: OXC30)
Standard: | OXC30 | No of Analyses: | 87 |
Element: | AuFA1 | Minimum: | 0.03 |
Units: | | Maximum: | 0.80 |
Detection Limit: | - | Mean: | 0.22 |
Expected Value (EV): | 0.20 | Std Deviation: | 0.08 |
E.V. Range: | 0.18 to 0.22 | % in Tolerance | 72.41 % |
| | % Bias | 12.36 % |
| | % RSD | 36.37 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-17 : Standards Data - August 2005
Summary
(Standard: OX9)
Standard: | OX9 | No of Analyses: | 49 |
Element: | AuFA1 | Minimum: | 0.46 |
Units: | | Maximum: | 0.59 |
Detection Limit: | | Mean: | 0.53 |
Expected Value (EV): | 0.47 | Std Deviation: | 0.03 |
E.V. Range: | 0.39 to 0.55 | % in Tolerance | 87.76 % |
| | % Bias | 13.58 % |
| | % RSD | 5.14 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-18 : Standards Data - August 2005
Summary
(Standard: OXF28)
Standard: | OXF28 | No of Analyses: | 90 |
Element: | AuFA1 | Minimum: | 0.50 |
Units: | | Maximum: | 0.88 |
Detection Limit: | - | Mean: | 0.83 |
Expected Value (EV): | 0.80 | Std Deviation: | 0.04 |
E.V. Range: | 0.72 to 0.88 | % in Tolerance | 98.89 % |
| | % Bias | 3.46 % |
| | % RSD | 4.98 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-19 : Standards Data - August 2005
Summary
(Standard: OXL14)
Standard: | OXL14 | No of Analyses: | 14 |
Element: | AuFA1 | Minimum: | 0.54 |
Units: | | Maximum: | 1.32 |
Detection Limit: | - | Mean: | 1.12 |
Expected Value (EV): | 1.22 | Std Deviation: | 0.18 |
E.V. Range: | 1.10 to 1.34 | % in Tolerance | 78.57 % |
| | % Bias | -8.49 % |
| | % RSD | 16.49 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-20 : Standards Data - August 2005
Summary
(Standard: OXL40)
Standard: | OXL40 | No of Analyses: | 195 |
Element: | AuFA1 | Minimum: | 0.09 |
Units: | | Maximum: | 2.20 |
Detection Limit: | - | Mean: | 1.88 |
Expected Value (EV): | 1.86 | Std Deviation: | 0.18 |
E.V. Range: | 1.67 to 2.04 | % in Tolerance | 91.28 % |
| | % Bias | 1.47 % |
| | % RSD | 9.61 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-21 : Standards Data - August 2005
Summary
(Standard: OXL25)
Standard: | OXL25 | No of Analyses: | 48 |
Element: | AuFA1 | Minimum: | 5.25 |
Units: | | Maximum: | 6.56 |
Detection Limit: | - | Mean: | 5.85 |
Expected Value (EV): | 5.85 | Std Deviation: | 0.27 |
E.V. Range: | 5.27 to 6.44 | % in Tolerance | 95.83 % |
| | % Bias | -0.08 % |
| | % RSD | 4.57 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-22 : Standards Data - August 2005
Summary
(Standard: SN16)
Standard: | SN16 | No of Analyses: | 195 |
Element: | AuFA1 | Minimum: | 5.40 |
Units: | | Maximum: | 9.70 |
Detection Limit: | | Mean: | 8.39 |
Expected Value (EV): | 8.37 | Std Deviation: | 0.48 |
E.V. Range: | 7.53 to 9.20 | % in Tolerance | 92.82 % |
| | % Bias | 0.29 % |
| | % RSD | 5.70 % |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-23 : Typical Sectional View of Regolith Domains Section 1589460N
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Figure 30-24 : Plan View of Mineralized Domains
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-25 : Plan View of Mineralized Domains Inata North
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Figure 30-26 : Plan View of Mineralized Domains Inata Central
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-27 : Plan View of Mineralized Domains Inata South
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Figure 30-28 : Typical Cross Section (1588580N) of Interpreted Mineralization Domains Inata North
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-29 : Typical Cross Section (1586820N) of Interpreted Mineralization Domains Inata Central
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Figure 30-30 : Typical Cross Section (1585600N) of Interpreted Mineralization Domains Inata South
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-31 : M Composites Log Probability Plot Domain 310
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Figure 31-32 : Mean Vs Contribution to Metal Plot Domain 310
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-33 : Tailings Management Facility Options
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-34 : Sona Barrage
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-35 : Bouro Barrage
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 30-36 : Primary Routes
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-37 : Secondary Routes
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Figure 31-38 : Typical Road Details
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 1 PIT OPTIMISATION MODEL DEVELOPMENT
Whittle Four-X is one of the world's leading optimisation and analysis tools for open-cut mine planners. The Whittle Four-X software uses the Lerchs-Grossman mathematical modelling technique to determine the size and shape for an open pit that optimises the value of the deposit. What follows is a description of the steps required to develop a Whittle Four-X model. Pit Optimisation Variables
The following Whittle Four-X variables were inserted into the Vulcan block model:-
Block tonnage
Metal
Ore tonnes
The variables are described below in more detail.
Block Tonnage
The variable Btonnes represents the tonnage in a block. The expression for the calculation of the variable Btonnes is:-
Btonnes = Volume x Density
Metal
Whittle Four-X deals with the amount of metal in a block, not grade. Knowing the tonnage and the metal in a block, Whittle Four-X can calculate the grade of a block.
In the case of a Multiple Indicator Kriged ("MIK") grade estimate the grade and the associated proportion above that selected grade cutoff are used to determine the metal content.
For the purpose of the pit optimisation, the metal content of a block, based on a MIK grade estimate, was based on the 0.5g/t, 0.7g/t and 0.9g/t Au cutoff indicators, where the metal content for material between 0.5g/t and 0.7g/t, 0.7g/t and 0.9g/t and greater than 0.9g/t was calculated.
The cutoffs shown above were based on the economic input parameters that were adopted for the Project and also allows for the incorporation of any low grade material.
A block manipulation script was set up to assign the block metal content into the appropriate variables, distinguishing between the resource classification and material type. The expression for calculating the metal content is:-
Metal = Ore Proportion x Grade x Volume x Density
The following naming convention was used:-
MIK
- | The first character denotes the resource classification , where:- |
| 2 | = Measured or Indicated Resources |
| 3 | = Inferred Resources |
- | The second and third characters denote the material type, where:- |
| Ox | = Oxide |
| Tr | = Transitional |
| Pr | = Primary |
| | |
- | The fourth character denotes the cutoff indicator, where:- |
| 5 | = Metal between 0.5g/t and 0.7g/t cutoff |
| 7 | = Metal between 0.7g/t and 0.9g/t cutoff |
| 9 | = Metal with grade above 0.9g/t cutoff |
Ore Tonnes
These variables represent the ore parcel tonnage in a block, dependent on the resource classification code. The expression for calculating the ore parcel tonnage is:-
Ore Tonnes = Ore Proportion x Volume x Density
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The naming convention adopted for the ore tonnes variable was the same as the metal variable, using a prefix of 'pton_' Export to Whittle Four-X Format
A Whittle Four-X model was created using a facility within Vulcan.
WHITTLE FOUR-X MODEL SET-UP
Prior to the pit optimisation process all cost and technical parameters are set up in order to emulate the required mining parameters.
Parameter File
The Whittle Four-X parameter file controls the pit optimisation. It contains the model framework, cost parameters and technical parameters.
The table below displays the Whittle Four-X master model framework into which the Whittle Four-X model was loaded.
Direction | Origin | Length | End | Block Size | Number of Blocks |
EAST | 682,300 | 1,110 | 683,410 | 15.0 | 74 |
NORTH | 1,585,200 | 4,300 | 1,589,500 | 25.0 | 172 |
RL | 50 | 300 | 350 | 5.0 | 60 |
A copy of the Whittle Four-X parameter file is provided below.
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
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Pit Slope Geometry
Whittle Four-X uses a structure arc file to record the required linkages between the optimisation blocks. The Whittle Four-X parameter file contains the control data relating to the pit slopes. The average errors are recorded during the creation of the structure arc file. The average error ranged from 0.5 to 3.0 for the various domains, with an average error of 1.0 .
The overall pit wall slope angles adopted for the pit optimisation were based on a report by Chris Orr and Associates ("Chriss Orr") called 'Belahoura Gold Project: Burkina Faso - Inata North and Inata Central Deposits - Prliminary Geotechnical Assessment' dated August 1999.
The geotechnical assessment was based on the following:-
i) Preliminary geological plans and sections.
ii) Borehole logs and core photographs from 7 boreholes.
iii) Limited number of laboratory unconfined compressive strength tests.
The report recommends inter-ramp slope angles (IRA) of between 35º and 40º for the weathered material to a depth of approximately 80m.
For the purpose of the pit optimisation the IRA's were reduced by 4 degrees to allow for a ramp system. In the absence of any recommendations for fresh material a notional overall slope angle of 45º was adopted for fresh material. Further work was recommended and new geotechnical boreholes have been drilled in 2005. RSG Global believes that this latest geotechnical information has not been analyses as of yet.
For the purpose of the pit optimisation the IRA's were reduced by 4 degrees to allow for a ramp system.
Model Validation
The table below provides a summary of the Whittle Four-X model based on a 0.5g/t Au cutoff. The Whittle Four-X model is consistent with the resource model.
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Grade Range | Tonnes | Grade |
| [Mt] | [g/t] |
Measured and Indicated |
0.5g/t - 0.7g/t | 1.9 | 0.6 |
0.7g/t - 0.9g/t | 1.9 | 0.8 |
> 0.9g/t | 11.2 | 2.3 |
Total | 15.0 | 1.9 |
Inferred |
0.5g/t - 0.7g/t | 0.9 | 0.6 |
0.7g/t - 0.9g/t | 0.8 | 0.8 |
> 0.9g/t | 3.2 | 1.8 |
Total | 4.9 | 1.4 |
Total |
0.5g/t - 0.7g/t | 2.9 | 0.6 |
0.7g/t - 0.9g/t | 2.7 | 0.8 |
> 0.9g/t | 14.3 | 2.2 |
Total | 19.9 | 1.8 |
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| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 2 Contract Mining Cost
Level | Mining Cost |
From | To | | Contractor Direct Mining Cost | | Dayworks | Rehabilitation | Dewatering | Total | |
| | Waste | Ore | | | | Waste | Ore |
| | D&B | L&H | Total | D&B | L&H | Total | 2.0% | | | | |
[mRL] | | | | | | [$/bcm] | | | | |
337.5 | 327.5 | 0.50 | 2.80 | 3.30 | 0.50 | 3.05 | 3.55 | 0.07 | Incl. | Incl. | 3.37 | 3.62 |
327.5 | 317.5 | 0.50 | 2.80 | 3.30 | 0.50 | 3.05 | 3.55 | 0.07 | | | 3.37 | 3.62 |
317.5 | 307.5 | 0.50 | 2.80 | 3.30 | 0.50 | 3.05 | 3.55 | 0.07 | | | 3.37 | 3.62 |
307.5 | 297.5 | 0.50 | 3.00 | 3.50 | 0.50 | 3.25 | 3.75 | 0.07 | | | 3.57 | 3.83 |
297.5 | 287.5 | 0.50 | 3.00 | 3.50 | 0.50 | 3.25 | 3.75 | 0.07 | | | 3.57 | 3.83 |
287.5 | 277.5 | 0.50 | 3.20 | 3.70 | 0.50 | 3.45 | 3.95 | 0.07 | | | 3.77 | 4.03 |
277.5 | 267.5 | 0.50 | 3.40 | 3.90 | 0.50 | 3.65 | 4.15 | 0.08 | | | 3.98 | 4.23 |
267.5 | 257.5 | 0.50 | 3.80 | 4.30 | 0.50 | 4.05 | 4.55 | 0.09 | | | 4.39 | 4.64 |
257.5 | 247.5 | 0.50 | 3.80 | 4.30 | 0.50 | 4.05 | 4.55 | 0.09 | | | 4.39 | 4.64 |
247.5 | 237.5 | 0.80 | 3.80 | 4.60 | 0.80 | 4.05 | 4.85 | 0.09 | | | 4.69 | 4.95 |
237.5 | 227.5 | 0.80 | 3.80 | 4.60 | 0.80 | 4.05 | 4.85 | 0.09 | | | 4.69 | 4.95 |
227.5 | 217.5 | 0.80 | 3.90 | 4.70 | 0.80 | 4.15 | 4.95 | 0.09 | | | 4.79 | 5.05 |
217.5 | 207.5 | 0.80 | 3.90 | 4.70 | 0.80 | 4.15 | 4.95 | 0.09 | | | 4.79 | 5.05 |
207.5 | 197.5 | 1.20 | 4.00 | 5.20 | 1.20 | 4.25 | 5.45 | 0.10 | | | 5.30 | 5.56 |
197.5 | 187.5 | 1.20 | 4.00 | 5.20 | 1.20 | 4.25 | 5.45 | 0.10 | | | 5.30 | 5.56 |
187.5 | 177.5 | 1.20 | 4.20 | 5.40 | 1.20 | 4.45 | 5.65 | 0.11 | | | 5.51 | 5.76 |
177.5 | 167.5 | 1.20 | 4.20 | 5.40 | 1.20 | 4.45 | 5.65 | 0.11 | | | 5.51 | 5.76 |
167.5 | 157.5 | 1.20 | 4.30 | 5.50 | 1.20 | 4.55 | 5.75 | 0.11 | | | 5.61 | 5.87 |
157.5 | 147.5 | 1.20 | 4.30 | 5.50 | 1.20 | 4.55 | 5.75 | 0.11 | | | 5.61 | 5.87 |
147.5 | 137.5 | 1.20 | 4.30 | 5.50 | 1.20 | 4.55 | 5.75 | 0.11 | | | 5.61 | 5.87 |
137.5 | 127.5 | 1.20 | 4.50 | 5.70 | 1.20 | 4.75 | 5.95 | 0.11 | | | 5.81 | 6.07 |
127.5 | 117.5 | 1.20 | 4.50 | 5.70 | 1.20 | 4.75 | 5.95 | 0.11 | | | 5.81 | 6.07 |
117.5 | 107.5 | 1.20 | 4.50 | 5.70 | 1.20 | 4.75 | 5.95 | 0.11 | | | 5.81 | 6.07 |
107.5 | 97.5 | 1.20 | 4.80 | 6.00 | 1.20 | 5.05 | 6.25 | 0.12 | | | 6.12 | 6.38 |
97.5 | 87.5 | 1.20 | 4.80 | 6.00 | 1.20 | 5.05 | 6.25 | 0.12 | | | 6.12 | 6.38 |
87.5 | 77.5 | 1.20 | 4.80 | 6.00 | 1.20 | 5.05 | 6.25 | 0.12 | | | 6.12 | 6.38 |
77.5 | 67.5 | 1.20 | 5.10 | 6.30 | 1.20 | 5.35 | 6.55 | 0.13 | | | 6.43 | 6.68 |
67.5 | 57.5 | 1.20 | 5.10 | 6.30 | 1.20 | 5.35 | 6.55 | 0.13 | | | 6.43 | 6.68 |
Mine Supervision
The mine supervision cost was based on the organisational chart as shown below.

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
The associated labour cost is provided below.
Salaries | | | | | | | | | |
| Expat/ | | Salary + | Dayshift | No. of | | Shift | Total Cost/ | Light |
Position | National | Annual Salary | Loading | Only | Shifts | Staff per Shift | personnel | Annum | Vehicles |
Mining Manager | E | 110,000 | 147,500 | 1 | | | 0 | 147,500 | 1 |
Secretary/Reception | N | 8,000 | 8,000 | 1 | | | 0 | 8,000 | |
Pit Superintendant | E | 85,000 | 122,500 | 1 | | | 0 | 122,500 | 1 |
Senior Surveyor | E | 70,000 | 107,500 | 1 | | | 0 | 107,500 | 1 |
Senior Mining Engineer | E | 80,000 | 117,500 | 1 | | | 0 | 117,500 | 1 |
Production Geologist | E | 70,000 | 107,500 | 1 | | | 0 | 107,500 | |
Senior Geologist | E | 80,000 | 117,500 | 1 | | | 0 | 117,500 | 1 |
Pit Supervisor | N | 15,000 | 15,000 | | 3 | 1 | 3 | 45,000 | 1 |
Surveyor | N | 10,000 | 10,000 | 1 | | | 0 | 10,000 | |
Mine Planning Engineer | N | 10,000 | 10,000 | 2 | | | 0 | 20,000 | |
Geologist | N | 10,000 | 10,000 | | 3 | 1 | 3 | 30,000 | 1 |
Survey Assistant | N | 5,000 | 5,000 | 3 | | | 0 | 15,000 | |
Geological Assistant | N | 5,000 | 5,000 | | 3 | 2 | 6 | 30,000 | |
Pump Hand | N | 3,500 | 3,500 | | 3 | 1 | 3 | 10,500 | |
Labourers - Pump Crew | N | 3,000 | 3,000 | | 3 | 3 | 9 | 27,000 | |
Casuals | N | 3,000 | 3,000 | | 3 | 3 | 9 | 27,000 | |
TOTAL | | | | 13 | | 11 | 33 | 942,500 | 7 |
| | | | | Total manning | 46 | | | |
The estimate for the salary loading cost for expatriate personnel is set out below.

Operational expenditure to run the mining department is shown in the table on the next page.
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Operational Expenditure Details | | | |
Item | Personnel | | | total $ |
| | | | |
GEOLOGY | 11 | | | |
PPE | | 250 | | 2,750 |
Fuel | | 20.0l/day | 0.50$/l | 10,950 |
Vehicle Maintenance | | 10,000 | | 30,000 |
Computers | | | | 3,000 |
Software & Software Licences | | | | 2,000 |
Training & Professional Development | | | | 10,000 |
Consultants | | | | 10,000 |
Core Yard Supplies | | | | 2,500 |
Pit Geology General Stores | | | | 15,000 |
Core Yard General Stores | | | | 1,000 |
sub-total | | | | 87,200 |
| | | | |
SURVEY | 5 | | | |
PPE | | | | 1,250 |
Fuel | | | | 3,650 |
Vehicle Maintenance | | | | 10,000 |
Computers | | | | 3,000 |
Software & Software Licences | | | | 2,000 |
Training & Professional Development | | | | 5,000 |
Survey Equipment | | | | 5,000 |
Survey General Stores | | | | 4,000 |
sub-total | | | | 33,900 |
| | | | |
MINE PLANNING | 24 | | | |
PPE | | | | 6,000 |
Stationery, Office Supplies | | | | 10,000 |
Fuel | | | | 7,300 |
Vehicle Maintenance | | | | 20,000 |
Computers | | | | 3,000 |
Software & Software Licences | | | | 2,500 |
Training & Professional Development | | | | 10,000 |
Consultants | | | | 25,000 |
Mine Planning General Stores | | | | 1,500 |
sub-total | | | | 85,300 |
| | | | |
MINE SUPERVISION | 6 | | | |
PPE | | | | 1,500 |
Fuel | | | | 7,300 |
Vehicle Maintenance | | | | 20,000 |
Computers | | | | 3,000 |
Software & Software Licences | | | | 1,000 |
Training & Professional Development | | | | 5,000 |
Mining Supervision General Stores | | | | 2,500 |
sub-total | | | | 40,300 |
| | | | |
TOTAL | 46 | | | 246,700 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 3 Optimisation Results based on 1.0Mtpa CIL, using owner mining
The following table and figure display the optimisation results based on the 1.0Mtpa CIL scenario,
owner mining scenario based on economic parameters derived from preliminary 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 1.0MTPA CIL SCENARIO |
Au price @ $450/oz, Owner Mining Scenario, Royalty @ 2.5% |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | | Operating Cashflow | | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | | [koz] | | | $M | | [$/oz] |
1 | 235.0 | 6.7 | 4.5 | 2.1 | 2.2 | 2.98 | 209.5 | 199.0 | 54.1 | 46.3 | 46.3 | 46.3 | 178 |
2 | 215.0 | 9.2 | 6.7 | 2.7 | 2.5 | 3.00 | 242.5 | 230.4 | 60.8 | 51.0 | 51.3 | 51.2 | 186 |
3 | 215.0 | 9.8 | 7.1 | 2.7 | 2.6 | 2.97 | 252.2 | 239.6 | 62.6 | 52.1 | 52.6 | 52.4 | 189 |
4 | 215.0 | 10.7 | 7.9 | 2.8 | 2.8 | 2.94 | 265.2 | 252.0 | 64.9 | 53.5 | 54.2 | 53.8 | 192 |
5 | 195.0 | 13.7 | 10.5 | 3.4 | 3.1 | 2.96 | 299.0 | 283.7 | 70.6 | 57.1 | 58.1 | 57.6 | 201 |
6 | 195.0 | 14.9 | 11.6 | 3.5 | 3.3 | 2.92 | 313.7 | 297.7 | 73.0 | 58.4 | 59.8 | 59.1 | 205 |
7 | 175.0 | 18.4 | 14.7 | 4.1 | 3.6 | 2.97 | 347.6 | 329.1 | 77.9 | 61.2 | 63.1 | 62.1 | 213 |
8 | 175.0 | 19.2 | 15.5 | 4.1 | 3.7 | 2.96 | 356.0 | 337.1 | 79.1 | 61.7 | 63.9 | 62.8 | 215 |
9 | 175.0 | 20.1 | 16.3 | 4.2 | 3.9 | 2.94 | 365.5 | 346.0 | 80.3 | 62.1 | 64.6 | 63.3 | 218 |
10 | 175.0 | 22.2 | 18.1 | 4.4 | 4.1 | 2.91 | 384.1 | 363.6 | 82.5 | 62.9 | 65.9 | 64.4 | 223 |
11 | 165.0 | 28.1 | 23.3 | 4.8 | 4.8 | 2.85 | 440.1 | 415.8 | 88.4 | 64.7 | 69.5 | 67.1 | 238 |
12 | 165.0 | 28.7 | 23.8 | 4.9 | 4.9 | 2.83 | 446.0 | 421.4 | 88.9 | 64.7 | 69.8 | 67.2 | 239 |
13 | 165.0 | 30.3 | 25.2 | 5.0 | 5.1 | 2.82 | 460.5 | 434.8 | 90.2 | 64.9 | 70.5 | 67.7 | 243 |
14 | 165.0 | 31.1 | 25.9 | 5.0 | 5.2 | 2.80 | 467.7 | 441.5 | 90.7 | 64.9 | 70.8 | 67.9 | 245 |
15 | 165.0 | 32.3 | 27.0 | 5.1 | 5.3 | 2.79 | 477.0 | 450.3 | 91.3 | 64.9 | 71.2 | 68.0 | 247 |
16 | 160.0 | 35.5 | 29.8 | 5.3 | 5.7 | 2.76 | 501.9 | 473.3 | 92.6 | 64.6 | 71.9 | 68.2 | 254 |
17 | 160.0 | 37.4 | 31.5 | 5.4 | 5.8 | 2.74 | 515.0 | 485.6 | 93.2 | 64.0 | 72.2 | 68.1 | 258 |
18 | 160.0 | 38.2 | 32.3 | 5.4 | 6.0 | 2.72 | 521.1 | 491.3 | 93.4 | 63.6 | 72.3 | 67.9 | 260 |
19 | 155.0 | 39.8 | 33.7 | 5.5 | 6.1 | 2.71 | 531.5 | 501.0 | 93.7 | 63.3 | 72.4 | 67.8 | 263 |
20 | 155.0 | 44.4 | 38.0 | 5.9 | 6.4 | 2.70 | 558.9 | 526.4 | 94.1 | 62.0 | 72.6 | 67.3 | 271 |
21 | 155.0 | 46.5 | 39.9 | 6.0 | 6.6 | 2.68 | 572.1 | 538.7 | 94.2 | 61.1 | 72.6 | 66.9 | 275 |
22 | 155.0 | 47.3 | 40.6 | 6.0 | 6.7 | 2.67 | 576.7 | 543.0 | 94.1 | 60.8 | 72.6 | 66.7 | 277 |
23 | 155.0 | 49.4 | 42.5 | 6.2 | 6.9 | 2.65 | 589.9 | 555.3 | 93.9 | 59.8 | 72.5 | 66.1 | 281 |
24 | 155.0 | 51.3 | 44.2 | 6.3 | 7.1 | 2.64 | 600.6 | 565.1 | 93.6 | 58.9 | 72.3 | 65.6 | 284 |
25 | 150.0 | 53.6 | 46.3 | 6.4 | 7.3 | 2.63 | 614.0 | 577.6 | 93.2 | 57.9 | 72.1 | 65.0 | 289 |
26 | 150.0 | 55.4 | 48.0 | 6.5 | 7.4 | 2.61 | 624.0 | 587.0 | 92.7 | 56.8 | 71.8 | 64.3 | 292 |
27 | 150.0 | 56.7 | 49.1 | 6.5 | 7.5 | 2.60 | 630.6 | 593.1 | 92.3 | 56.2 | 71.6 | 63.9 | 294 |
28 | 150.0 | 58.8 | 51.1 | 6.6 | 7.7 | 2.59 | 641.9 | 603.6 | 91.5 | 54.9 | 71.3 | 63.1 | 298 |
29 | 145.0 | 62.5 | 54.5 | 6.8 | 8.0 | 2.56 | 660.7 | 621.1 | 90.0 | 52.6 | 70.6 | 61.6 | 305 |
30 | 145.0 | 65.0 | 56.8 | 6.9 | 8.2 | 2.55 | 672.9 | 632.4 | 88.9 | 51.2 | 70.1 | 60.6 | 310 |
31 | 145.0 | 67.7 | 59.3 | 7.0 | 8.4 | 2.53 | 686.5 | 644.8 | 87.6 | 49.5 | 69.5 | 59.5 | 314 |
32 | 145.0 | 69.9 | 61.3 | 7.1 | 8.6 | 2.52 | 696.5 | 654.1 | 86.4 | 48.2 | 69.0 | 58.6 | 318 |
33 | 145.0 | 72.3 | 63.6 | 7.3 | 8.8 | 2.51 | 708.0 | 664.5 | 85.1 | 46.6 | 68.4 | 57.5 | 322 |
34 | 145.0 | 74.1 | 65.2 | 7.4 | 8.9 | 2.51 | 715.7 | 671.7 | 84.1 | 45.6 | 68.0 | 56.8 | 325 |
35 | 145.0 | 75.4 | 66.5 | 7.4 | 8.9 | 2.51 | 721.6 | 677.1 | 83.3 | 44.8 | 67.7 | 56.2 | 327 |
36 | 145.0 | 76.5 | 67.5 | 7.5 | 9.0 | 2.50 | 725.8 | 681.0 | 82.6 | 44.0 | 67.4 | 55.7 | 329 |
37 | 145.0 | 78.5 | 69.3 | 7.6 | 9.2 | 2.49 | 734.0 | 688.5 | 81.2 | 42.6 | 66.9 | 54.7 | 332 |
38 | 145.0 | 79.2 | 70.0 | 7.6 | 9.2 | 2.49 | 737.4 | 691.6 | 80.7 | 42.1 | 66.6 | 54.4 | 333 |
39 | 145.0 | 80.2 | 71.0 | 7.7 | 9.3 | 2.48 | 741.1 | 695.1 | 79.9 | 41.4 | 66.3 | 53.9 | 335 |
40 | 145.0 | 81.2 | 71.9 | 7.7 | 9.3 | 2.48 | 745.3 | 699.0 | 79.1 | 40.8 | 66.0 | 53.4 | 337 |
41 | 145.0 | 83.6 | 74.1 | 7.8 | 9.5 | 2.46 | 755.3 | 708.1 | 77.0 | 38.9 | 65.1 | 52.0 | 341 |
42 | 145.0 | 84.6 | 75.0 | 7.8 | 9.6 | 2.46 | 759.0 | 711.5 | 76.1 | 38.2 | 64.8 | 51.5 | 343 |
43 | 145.0 | 85.8 | 76.1 | 7.9 | 9.7 | 2.45 | 762.8 | 715.1 | 75.1 | 37.2 | 64.4 | 50.8 | 345 |
44 | 140.0 | 88.0 | 78.2 | 8.0 | 9.8 | 2.45 | 770.6 | 722.3 | 73.2 | 35.6 | 63.7 | 49.7 | 349 |
45 | 140.0 | 90.2 | 80.3 | 8.1 | 9.9 | 2.44 | 778.2 | 729.2 | 71.3 | 34.1 | 63.0 | 48.6 | 352 |
46 | 140.0 | 95.1 | 84.9 | 8.3 | 10.2 | 2.43 | 794.9 | 744.8 | 66.9 | 30.4 | 61.3 | 45.9 | 360 |
47 | 140.0 | 96.6 | 86.3 | 8.4 | 10.3 | 2.42 | 799.9 | 749.3 | 65.4 | 29.3 | 60.8 | 45.0 | 363 |
48 | 130.0 | 98.8 | 88.4 | 8.5 | 10.4 | 2.42 | 807.2 | 756.1 | 63.4 | 27.7 | 60.0 | 43.9 | 366 |
49 | 130.0 | 99.4 | 89.0 | 8.5 | 10.4 | 2.41 | 809.2 | 757.9 | 62.8 | 27.3 | 59.8 | 43.5 | 367 |
50 | 130.0 | 101.3 | 90.8 | 8.6 | 10.5 | 2.41 | 815.1 | 763.2 | 60.9 | 25.8 | 59.1 | 42.4 | 370 |
51 | 130.0 | 103.9 | 93.3 | 8.8 | 10.7 | 2.40 | 823.7 | 771.0 | 58.2 | 23.8 | 58.2 | 41.0 | 375 |
52 | 130.0 | 104.8 | 94.1 | 8.8 | 10.7 | 2.40 | 826.4 | 773.5 | 57.3 | 23.2 | 57.9 | 40.5 | 376 |
53 | 125.0 | 107.2 | 96.3 | 8.9 | 10.8 | 2.39 | 833.5 | 780.0 | 54.8 | 21.3 | 57.0 | 39.1 | 380 |
54 | 125.0 | 108.9 | 98.0 | 9.0 | 10.9 | 2.39 | 838.2 | 784.4 | 53.0 | 19.8 | 56.4 | 38.1 | 383 |
55 | 125.0 | 109.5 | 98.6 | 9.0 | 10.9 | 2.39 | 839.9 | 785.9 | 52.3 | 19.3 | 56.2 | 37.8 | 384 |
56 | 125.0 | 110.0 | 99.0 | 9.0 | 11.0 | 2.39 | 841.1 | 787.0 | 51.8 | 18.9 | 56.0 | 37.5 | 384 |
57 | 125.0 | 110.4 | 99.4 | 9.0 | 11.0 | 2.38 | 842.3 | 788.1 | 51.3 | 18.6 | 55.8 | 37.2 | 385 |
58 | 125.0 | 111.7 | 100.6 | 9.1 | 11.1 | 2.38 | 845.9 | 791.4 | 49.9 | 17.6 | 55.3 | 36.5 | 387 |
59 | 125.0 | 112.9 | 101.7 | 9.2 | 11.1 | 2.38 | 849.3 | 794.5 | 48.4 | 16.7 | 54.8 | 35.8 | 389 |
60 | 125.0 | 113.7 | 102.6 | 9.2 | 11.1 | 2.38 | 851.3 | 796.3 | 47.5 | 16.0 | 54.5 | 35.3 | 390 |
61 | 125.0 | 114.9 | 103.7 | 9.3 | 11.2 | 2.37 | 854.7 | 799.4 | 46.0 | 15.1 | 54.0 | 34.6 | 392 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 1.0MTPA CIL SCENARIO
Au price @ $450/oz, Owner Mining Scenario, Royalty @ 2.5%
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 4 Optimisation Results - Based on 1.0Mtpa CIL, using contract mining
The following table and figure display the optimisation results based on the 1.0Mtpa CIL scenario, using contract mining and based on economic parameters derived from pre 2005 testwork.
TABLE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA GOLD PROJECT
PIT OPTIMISATION RESULTS - 1.0MTPA CIL SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | | [koz] | | | $M | | [$/oz] |
1 | 270.0 | 2.7 | 1.6 | 1.6 | 1.0 | 3.16 | 105.3 | 100.1 | 26.4 | 24.0 | 24.0 | 24.0 | 187 |
2 | 250.0 | 4.5 | 3.0 | 1.9 | 1.5 | 3.04 | 149.6 | 142.1 | 35.3 | 31.4 | 31.6 | 31.5 | 202 |
3 | 245.0 | 5.5 | 3.7 | 2.1 | 1.8 | 2.99 | 171.0 | 162.4 | 39.3 | 34.3 | 34.8 | 34.6 | 208 |
4 | 245.0 | 5.9 | 4.0 | 2.2 | 1.9 | 2.98 | 178.0 | 169.1 | 40.6 | 35.2 | 35.8 | 35.5 | 210 |
5 | 245.0 | 6.5 | 4.4 | 2.2 | 2.0 | 2.94 | 190.1 | 180.6 | 42.6 | 36.6 | 37.3 | 36.9 | 214 |
6 | 240.0 | 7.0 | 4.9 | 2.3 | 2.1 | 2.94 | 197.4 | 187.6 | 43.8 | 37.5 | 38.2 | 37.9 | 216 |
7 | 235.0 | 7.7 | 5.5 | 2.5 | 2.2 | 2.94 | 208.6 | 198.1 | 45.5 | 38.7 | 39.6 | 39.1 | 221 |
8 | 235.0 | 8.5 | 6.1 | 2.6 | 2.4 | 2.91 | 220.3 | 209.3 | 47.1 | 39.8 | 40.8 | 40.3 | 225 |
9 | 235.0 | 9.1 | 6.6 | 2.7 | 2.5 | 2.90 | 228.7 | 217.3 | 48.2 | 40.5 | 41.6 | 41.1 | 228 |
10 | 235.0 | 9.7 | 7.1 | 2.8 | 2.6 | 2.87 | 236.7 | 224.8 | 49.1 | 41.0 | 42.3 | 41.7 | 232 |
11 | 235.0 | 9.8 | 7.2 | 2.8 | 2.6 | 2.87 | 237.7 | 225.8 | 49.2 | 41.1 | 42.4 | 41.7 | 232 |
12 | 235.0 | 10.5 | 7.8 | 2.9 | 2.7 | 2.85 | 246.4 | 234.1 | 50.1 | 41.4 | 43.0 | 42.2 | 236 |
13 | 235.0 | 11.0 | 8.2 | 3.0 | 2.8 | 2.84 | 252.3 | 239.7 | 50.6 | 41.6 | 43.4 | 42.5 | 239 |
14 | 215.0 | 14.0 | 10.9 | 3.6 | 3.0 | 2.87 | 280.6 | 266.6 | 52.8 | 42.6 | 44.9 | 43.8 | 252 |
15 | 215.0 | 14.9 | 11.7 | 3.7 | 3.2 | 2.84 | 290.6 | 276.0 | 53.5 | 42.9 | 45.4 | 44.1 | 256 |
16 | 215.0 | 15.9 | 12.6 | 3.8 | 3.3 | 2.83 | 300.0 | 285.0 | 54.0 | 43.0 | 45.8 | 44.4 | 260 |
17 | 215.0 | 16.0 | 12.7 | 3.8 | 3.3 | 2.83 | 300.9 | 285.9 | 54.1 | 43.0 | 45.8 | 44.4 | 261 |
18 | 200.0 | 19.1 | 15.5 | 4.3 | 3.6 | 2.86 | 328.0 | 311.0 | 55.1 | 43.0 | 46.4 | 44.7 | 273 |
19 | 200.0 | 19.4 | 15.8 | 4.4 | 3.6 | 2.84 | 331.5 | 314.3 | 55.2 | 42.8 | 46.4 | 44.6 | 275 |
20 | 200.0 | 20.1 | 16.3 | 4.4 | 3.7 | 2.82 | 337.3 | 319.8 | 55.2 | 42.6 | 46.5 | 44.5 | 277 |
21 | 200.0 | 20.5 | 16.7 | 4.4 | 3.8 | 2.80 | 341.2 | 323.6 | 55.3 | 42.3 | 46.5 | 44.4 | 279 |
22 | 200.0 | 21.4 | 17.5 | 4.5 | 3.9 | 2.78 | 348.8 | 330.7 | 55.2 | 41.9 | 46.4 | 44.2 | 283 |
23 | 200.0 | 22.3 | 18.3 | 4.5 | 4.0 | 2.76 | 356.6 | 338.1 | 55.1 | 41.5 | 46.3 | 43.9 | 287 |
24 | 175.0 | 29.1 | 24.5 | 5.4 | 4.5 | 2.79 | 408.4 | 384.8 | 53.9 | 39.0 | 45.5 | 42.3 | 310 |
25 | 175.0 | 31.3 | 26.5 | 5.5 | 4.8 | 2.77 | 425.9 | 400.8 | 53.3 | 37.8 | 45.1 | 41.5 | 317 |
26 | 175.0 | 31.8 | 27.0 | 5.6 | 4.8 | 2.77 | 429.6 | 404.3 | 53.1 | 37.5 | 45.0 | 41.3 | 319 |
27 | 175.0 | 32.5 | 27.6 | 5.6 | 4.9 | 2.76 | 434.8 | 409.2 | 52.8 | 37.0 | 44.8 | 40.9 | 321 |
28 | 175.0 | 32.8 | 27.9 | 5.6 | 4.9 | 2.75 | 436.8 | 411.1 | 52.7 | 36.8 | 44.7 | 40.8 | 322 |
29 | 170.0 | 37.2 | 32.0 | 6.1 | 5.2 | 2.76 | 464.4 | 436.4 | 50.6 | 34.2 | 43.5 | 38.8 | 334 |
30 | 170.0 | 37.4 | 32.1 | 6.1 | 5.2 | 2.76 | 465.3 | 437.3 | 50.6 | 34.1 | 43.4 | 38.8 | 334 |
31 | 170.0 | 38.9 | 33.5 | 6.2 | 5.4 | 2.75 | 475.2 | 446.4 | 49.6 | 33.0 | 42.8 | 37.9 | 339 |
32 | 170.0 | 39.8 | 34.3 | 6.3 | 5.5 | 2.73 | 480.6 | 451.5 | 48.9 | 32.2 | 42.4 | 37.3 | 342 |
33 | 170.0 | 41.9 | 36.3 | 6.4 | 5.6 | 2.72 | 492.9 | 462.8 | 47.5 | 30.4 | 41.6 | 36.0 | 348 |
34 | 165.0 | 43.4 | 37.6 | 6.5 | 5.8 | 2.71 | 502.6 | 471.4 | 46.3 | 29.1 | 40.9 | 35.0 | 352 |
35 | 165.0 | 44.2 | 38.4 | 6.6 | 5.8 | 2.71 | 507.9 | 476.1 | 45.6 | 28.4 | 40.5 | 34.4 | 354 |
36 | 165.0 | 44.9 | 39.0 | 6.6 | 5.9 | 2.70 | 511.2 | 479.2 | 45.0 | 27.7 | 40.2 | 34.0 | 356 |
37 | 165.0 | 46.3 | 40.3 | 6.7 | 6.0 | 2.69 | 520.0 | 487.1 | 43.7 | 26.4 | 39.4 | 32.9 | 360 |
38 | 165.0 | 47.7 | 41.6 | 6.8 | 6.1 | 2.69 | 527.0 | 493.4 | 42.5 | 25.3 | 38.8 | 32.0 | 364 |
39 | 165.0 | 48.2 | 42.1 | 6.9 | 6.1 | 2.69 | 529.3 | 495.6 | 42.0 | 24.8 | 38.5 | 31.7 | 365 |
40 | 165.0 | 48.9 | 42.7 | 6.9 | 6.2 | 2.68 | 532.5 | 498.6 | 41.4 | 24.1 | 38.2 | 31.2 | 367 |
41 | 165.0 | 52.2 | 45.7 | 7.1 | 6.4 | 2.66 | 549.7 | 514.3 | 37.9 | 21.0 | 36.3 | 28.7 | 376 |
42 | 165.0 | 53.8 | 47.2 | 7.2 | 6.6 | 2.65 | 557.3 | 521.4 | 36.2 | 19.3 | 35.4 | 27.4 | 381 |
43 | 165.0 | 55.0 | 48.4 | 7.3 | 6.7 | 2.63 | 563.1 | 526.9 | 34.8 | 18.0 | 34.7 | 26.3 | 384 |
44 | 165.0 | 59.6 | 52.7 | 7.6 | 6.9 | 2.61 | 583.9 | 545.8 | 29.9 | 13.1 | 32.3 | 22.7 | 395 |
45 | 165.0 | 62.4 | 55.3 | 7.7 | 7.2 | 2.59 | 597.2 | 558.1 | 26.5 | 10.1 | 30.6 | 20.4 | 403 |
46 | 160.0 | 64.3 | 57.0 | 7.8 | 7.3 | 2.59 | 606.5 | 566.2 | 24.2 | 8.3 | 29.5 | 18.9 | 407 |
47 | 160.0 | 64.6 | 57.3 | 7.9 | 7.3 | 2.59 | 607.7 | 567.5 | 23.9 | 8.0 | 29.3 | 18.6 | 408 |
48 | 160.0 | 66.8 | 59.3 | 8.0 | 7.4 | 2.58 | 617.5 | 576.1 | 21.2 | 5.7 | 28.0 | 16.9 | 413 |
49 | 160.0 | 67.1 | 59.6 | 8.0 | 7.5 | 2.58 | 619.0 | 577.5 | 20.7 | 5.3 | 27.8 | 16.6 | 414 |
50 | 160.0 | 69.0 | 61.5 | 8.1 | 7.6 | 2.58 | 627.7 | 585.0 | 18.3 | 3.3 | 26.7 | 15.0 | 419 |
51 | 150.0 | 70.5 | 62.8 | 8.2 | 7.7 | 2.58 | 634.2 | 590.8 | 16.3 | 1.8 | 25.7 | 13.7 | 422 |
52 | 150.0 | 72.6 | 64.8 | 8.3 | 7.8 | 2.57 | 643.5 | 599.1 | 13.3 | -0.6 | 24.4 | 11.9 | 428 |
53 | 150.0 | 73.7 | 65.8 | 8.4 | 7.9 | 2.56 | 647.5 | 602.9 | 11.9 | -1.8 | 23.7 | 10.9 | 430 |
54 | 150.0 | 75.6 | 67.6 | 8.5 | 8.0 | 2.56 | 656.7 | 610.7 | 8.9 | -3.9 | 22.4 | 9.2 | 435 |
55 | 150.0 | 75.7 | 67.7 | 8.5 | 8.0 | 2.56 | 657.0 | 611.1 | 8.8 | -4.1 | 22.4 | 9.1 | 436 |
56 | 150.0 | 76.0 | 68.0 | 8.5 | 8.0 | 2.56 | 658.4 | 612.3 | 8.3 | -4.4 | 22.1 | 8.9 | 437 |
57 | 150.0 | 76.5 | 68.5 | 8.5 | 8.0 | 2.55 | 660.1 | 613.8 | 7.6 | -5.0 | 21.8 | 8.4 | 438 |
58 | 150.0 | 77.1 | 69.1 | 8.6 | 8.1 | 2.55 | 662.5 | 616.0 | 6.7 | -5.7 | 21.4 | 7.8 | 439 |
59 | 150.0 | 77.4 | 69.3 | 8.6 | 8.1 | 2.55 | 663.5 | 616.8 | 6.3 | -6.1 | 21.2 | 7.6 | 440 |
60 | 150.0 | 82.6 | 74.2 | 8.9 | 8.4 | 2.53 | 681.8 | 633.8 | -1.5 | -11.9 | 17.7 | 2.9 | 452 |
61 | 150.0 | 83.4 | 75.0 | 8.9 | 8.4 | 2.53 | 685.4 | 636.9 | -2.9 | -12.9 | 17.1 | 2.1 | 455 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 5 Optimisation Results - Based on 1.5Mtpa CIL
The following table and figure display the optimisation results based on the 1.5Mtpa CIL scenario, using contract mining and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 1.5MTPA CIL SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.77/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | | Operating Cashflow | | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | | | $M | | [$/oz] |
1 | 245.0 | 5.6 | 3.6 | 1.9 | 1.9 | 2.85 | 176.9 | 168.0 | 44.0 | 39.7 | 39.7 | 39.7 | 188 |
2 | 245.0 | 6.1 | 4.0 | 2.0 | 2.1 | 2.83 | 187.3 | 177.9 | 46.0 | 41.3 | 41.4 | 41.3 | 191 |
3 | 245.0 | 6.5 | 4.4 | 2.0 | 2.1 | 2.82 | 194.3 | 184.6 | 47.4 | 42.4 | 42.4 | 42.4 | 193 |
4 | 240.0 | 7.1 | 4.8 | 2.2 | 2.2 | 2.81 | 203.1 | 192.9 | 48.9 | 43.6 | 43.7 | 43.6 | 196 |
5 | 235.0 | 8.1 | 5.6 | 2.3 | 2.4 | 2.80 | 218.3 | 207.4 | 51.5 | 45.5 | 45.7 | 45.6 | 202 |
6 | 235.0 | 8.8 | 6.2 | 2.4 | 2.6 | 2.76 | 229.3 | 217.8 | 53.2 | 46.6 | 47.0 | 46.8 | 206 |
7 | 235.0 | 9.3 | 6.6 | 2.5 | 2.7 | 2.75 | 236.4 | 224.6 | 54.2 | 47.3 | 47.7 | 47.5 | 209 |
8 | 235.0 | 9.7 | 7.0 | 2.6 | 2.7 | 2.74 | 242.3 | 230.2 | 55.0 | 47.9 | 48.3 | 48.1 | 211 |
9 | 235.0 | 9.9 | 7.2 | 2.6 | 2.8 | 2.74 | 244.6 | 232.4 | 55.3 | 48.0 | 48.5 | 48.3 | 212 |
10 | 235.0 | 10.8 | 7.9 | 2.7 | 2.9 | 2.71 | 255.2 | 242.5 | 56.6 | 48.7 | 49.4 | 49.0 | 217 |
11 | 235.0 | 11.2 | 8.2 | 2.7 | 3.0 | 2.68 | 260.2 | 247.2 | 57.1 | 49.0 | 49.7 | 49.3 | 219 |
12 | 215.0 | 14.9 | 11.5 | 3.3 | 3.4 | 2.69 | 297.8 | 282.9 | 60.7 | 51.4 | 52.6 | 52.0 | 235 |
13 | 215.0 | 16.0 | 12.4 | 3.5 | 3.6 | 2.68 | 308.1 | 292.7 | 61.6 | 51.8 | 53.3 | 52.5 | 240 |
14 | 215.0 | 16.1 | 12.5 | 3.5 | 3.6 | 2.66 | 310.1 | 294.6 | 61.7 | 51.8 | 53.4 | 52.6 | 241 |
15 | 210.0 | 16.8 | 13.0 | 3.5 | 3.7 | 2.64 | 316.9 | 301.1 | 62.2 | 52.0 | 53.7 | 52.8 | 244 |
16 | 200.0 | 19.6 | 15.6 | 3.9 | 4.0 | 2.66 | 341.4 | 323.8 | 63.5 | 52.4 | 54.6 | 53.5 | 254 |
17 | 200.0 | 20.3 | 16.2 | 3.9 | 4.1 | 2.64 | 348.0 | 330.0 | 63.8 | 52.3 | 54.8 | 53.6 | 257 |
18 | 200.0 | 20.8 | 16.6 | 4.0 | 4.2 | 2.62 | 353.4 | 335.2 | 63.9 | 52.2 | 54.9 | 53.6 | 259 |
19 | 200.0 | 21.6 | 17.3 | 4.0 | 4.3 | 2.60 | 361.3 | 342.5 | 64.1 | 52.0 | 55.0 | 53.5 | 263 |
20 | 200.0 | 22.5 | 18.0 | 4.1 | 4.4 | 2.58 | 368.1 | 349.0 | 64.2 | 51.8 | 55.1 | 53.4 | 266 |
21 | 200.0 | 23.2 | 18.7 | 4.1 | 4.5 | 2.56 | 373.9 | 354.5 | 64.3 | 51.5 | 55.1 | 53.3 | 269 |
22 | 180.0 | 30.4 | 25.2 | 4.8 | 5.2 | 2.58 | 431.9 | 406.8 | 64.1 | 50.0 | 55.0 | 52.5 | 292 |
23 | 175.0 | 32.0 | 26.6 | 5.0 | 5.3 | 2.58 | 443.4 | 417.4 | 64.0 | 49.5 | 54.9 | 52.2 | 297 |
24 | 175.0 | 32.9 | 27.4 | 5.0 | 5.5 | 2.57 | 450.0 | 423.6 | 63.8 | 49.0 | 54.7 | 51.9 | 299 |
25 | 175.0 | 33.7 | 28.2 | 5.1 | 5.5 | 2.56 | 456.0 | 429.3 | 63.6 | 48.6 | 54.6 | 51.6 | 302 |
26 | 175.0 | 34.0 | 28.4 | 5.1 | 5.6 | 2.55 | 458.1 | 431.3 | 63.5 | 48.4 | 54.5 | 51.4 | 303 |
27 | 170.0 | 38.3 | 32.4 | 5.5 | 5.9 | 2.56 | 485.2 | 456.2 | 62.0 | 46.1 | 53.5 | 49.8 | 314 |
28 | 170.0 | 39.2 | 33.2 | 5.5 | 6.0 | 2.55 | 491.7 | 462.2 | 61.6 | 45.5 | 53.2 | 49.3 | 317 |
29 | 170.0 | 40.6 | 34.5 | 5.6 | 6.2 | 2.53 | 501.0 | 470.8 | 60.9 | 44.6 | 52.7 | 48.6 | 321 |
30 | 170.0 | 41.5 | 35.3 | 5.6 | 6.3 | 2.52 | 506.2 | 475.8 | 60.4 | 43.9 | 52.4 | 48.2 | 323 |
31 | 165.0 | 43.9 | 37.4 | 5.8 | 6.4 | 2.52 | 521.4 | 489.3 | 59.0 | 42.4 | 51.5 | 47.0 | 329 |
32 | 165.0 | 44.4 | 37.9 | 5.8 | 6.5 | 2.51 | 525.1 | 492.6 | 58.6 | 42.0 | 51.3 | 46.6 | 331 |
33 | 165.0 | 45.4 | 38.7 | 5.9 | 6.6 | 2.50 | 531.5 | 498.2 | 57.9 | 41.2 | 50.8 | 46.0 | 334 |
34 | 165.0 | 46.5 | 39.8 | 5.9 | 6.7 | 2.50 | 537.8 | 504.0 | 57.1 | 40.3 | 50.3 | 45.3 | 337 |
35 | 165.0 | 48.7 | 41.8 | 6.1 | 6.9 | 2.49 | 549.2 | 514.5 | 55.5 | 38.5 | 49.3 | 43.9 | 342 |
36 | 165.0 | 49.1 | 42.2 | 6.1 | 6.9 | 2.49 | 551.4 | 516.6 | 55.2 | 38.0 | 49.1 | 43.6 | 343 |
37 | 165.0 | 51.8 | 44.6 | 6.2 | 7.2 | 2.46 | 566.9 | 530.7 | 52.7 | 35.4 | 47.6 | 41.5 | 351 |
38 | 165.0 | 53.5 | 46.2 | 6.3 | 7.3 | 2.45 | 575.7 | 538.9 | 51.2 | 33.8 | 46.7 | 40.3 | 355 |
39 | 165.0 | 55.6 | 48.1 | 6.4 | 7.5 | 2.43 | 586.2 | 548.8 | 49.2 | 31.7 | 45.5 | 38.6 | 360 |
40 | 165.0 | 59.9 | 52.1 | 6.7 | 7.8 | 2.42 | 606.6 | 567.5 | 45.3 | 27.8 | 43.2 | 35.5 | 370 |
41 | 165.0 | 62.2 | 54.1 | 6.8 | 8.0 | 2.40 | 618.1 | 578.1 | 43.0 | 25.6 | 41.8 | 33.7 | 376 |
42 | 165.0 | 63.2 | 55.1 | 6.8 | 8.1 | 2.39 | 623.2 | 582.8 | 41.9 | 24.5 | 41.1 | 32.8 | 378 |
43 | 165.0 | 64.3 | 56.1 | 6.8 | 8.2 | 2.38 | 628.4 | 587.6 | 40.7 | 23.4 | 40.5 | 32.0 | 381 |
44 | 160.0 | 65.6 | 57.3 | 6.9 | 8.3 | 2.39 | 635.1 | 593.4 | 39.3 | 22.2 | 39.7 | 30.9 | 384 |
45 | 160.0 | 66.9 | 58.5 | 7.0 | 8.4 | 2.38 | 641.1 | 598.7 | 37.9 | 20.8 | 38.9 | 29.8 | 387 |
46 | 160.0 | 68.1 | 59.7 | 7.1 | 8.5 | 2.38 | 646.9 | 603.9 | 36.4 | 19.6 | 38.1 | 28.8 | 390 |
47 | 160.0 | 70.1 | 61.5 | 7.1 | 8.6 | 2.37 | 656.4 | 612.1 | 34.0 | 17.4 | 36.7 | 27.1 | 395 |
48 | 150.0 | 72.0 | 63.3 | 7.3 | 8.7 | 2.37 | 665.1 | 619.8 | 31.8 | 15.5 | 35.5 | 25.5 | 399 |
49 | 150.0 | 73.8 | 65.0 | 7.4 | 8.8 | 2.37 | 673.1 | 627.1 | 29.4 | 13.4 | 34.2 | 23.8 | 403 |
50 | 150.0 | 75.5 | 66.5 | 7.4 | 9.0 | 2.36 | 681.1 | 634.1 | 27.1 | 11.5 | 33.0 | 22.3 | 407 |
51 | 150.0 | 76.0 | 67.0 | 7.4 | 9.0 | 2.36 | 683.2 | 636.1 | 26.4 | 10.9 | 32.7 | 21.8 | 408 |
52 | 150.0 | 76.3 | 67.3 | 7.5 | 9.0 | 2.36 | 684.8 | 637.4 | 26.0 | 10.6 | 32.4 | 21.5 | 409 |
53 | 150.0 | 76.5 | 67.5 | 7.5 | 9.0 | 2.36 | 685.4 | 637.9 | 25.8 | 10.4 | 32.3 | 21.3 | 410 |
54 | 150.0 | 77.1 | 68.0 | 7.5 | 9.1 | 2.36 | 687.9 | 640.1 | 25.0 | 9.7 | 31.9 | 20.8 | 411 |
55 | 150.0 | 79.1 | 69.9 | 7.6 | 9.2 | 2.35 | 696.0 | 647.4 | 22.2 | 7.4 | 30.3 | 18.8 | 416 |
56 | 150.0 | 80.7 | 71.3 | 7.7 | 9.3 | 2.34 | 701.7 | 652.7 | 20.1 | 5.7 | 29.1 | 17.4 | 419 |
57 | 150.0 | 86.0 | 76.4 | 7.9 | 9.6 | 2.33 | 722.7 | 671.4 | 12.3 | -0.6 | 25.0 | 12.2 | 432 |
58 | 150.0 | 87.3 | 77.6 | 8.0 | 9.7 | 2.33 | 727.5 | 675.7 | 10.5 | -2.1 | 24.1 | 11.0 | 435 |
59 | 150.0 | 88.3 | 78.6 | 8.0 | 9.8 | 2.33 | 731.6 | 679.3 | 8.9 | -3.3 | 23.3 | 10.0 | 437 |
60 | 150.0 | 88.7 | 78.9 | 8.0 | 9.8 | 2.32 | 732.8 | 680.5 | 8.4 | -3.8 | 23.0 | 9.6 | 438 |
61 | 150.0 | 89.7 | 79.8 | 8.1 | 9.9 | 2.32 | 736.3 | 683.5 | 7.0 | -4.9 | 22.3 | 8.7 | 440 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 1.5MTPA CIL SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.77/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 6 Optimisation Results - Based on 2.0Mtpa CIL
The following table and figure display the optimisation results based on the 2.0Mtpa CIL scenario, using contract mining and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 2.0MTPA CIL SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.77/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | | | $M | | [$/oz] |
1 | 245.0 | 6.0 | 3.9 | 1.9 | 2.0 | 2.82 | 185.0 | 175.8 | 47.0 | 42.8 | 42.8 | 42.8 | 182 |
2 | 245.0 | 6.5 | 4.3 | 2.0 | 2.1 | 2.81 | 193.9 | 184.2 | 48.8 | 44.3 | 44.3 | 44.3 | 185 |
3 | 245.0 | 6.8 | 4.6 | 2.1 | 2.2 | 2.79 | 199.4 | 189.5 | 49.9 | 45.2 | 45.3 | 45.3 | 187 |
4 | 240.0 | 7.5 | 5.2 | 2.2 | 2.4 | 2.77 | 211.7 | 201.1 | 52.0 | 47.1 | 47.2 | 47.2 | 191 |
5 | 235.0 | 8.7 | 6.1 | 2.4 | 2.6 | 2.75 | 228.8 | 217.4 | 54.9 | 49.5 | 49.7 | 49.6 | 197 |
6 | 235.0 | 9.3 | 6.6 | 2.5 | 2.7 | 2.74 | 236.7 | 224.9 | 56.2 | 50.5 | 50.7 | 50.6 | 200 |
7 | 235.0 | 9.7 | 7.0 | 2.5 | 2.8 | 2.73 | 242.7 | 230.5 | 57.0 | 51.2 | 51.5 | 51.3 | 203 |
8 | 235.0 | 10.0 | 7.2 | 2.5 | 2.8 | 2.71 | 246.2 | 233.9 | 57.5 | 51.5 | 51.8 | 51.7 | 204 |
9 | 235.0 | 10.9 | 7.9 | 2.7 | 3.0 | 2.69 | 256.6 | 243.7 | 58.8 | 52.4 | 52.9 | 52.7 | 209 |
10 | 235.0 | 11.2 | 8.2 | 2.7 | 3.0 | 2.67 | 260.9 | 247.9 | 59.3 | 52.7 | 53.3 | 53.0 | 211 |
11 | 215.0 | 14.4 | 11.0 | 3.3 | 3.4 | 2.69 | 292.9 | 278.2 | 62.7 | 55.0 | 56.0 | 55.5 | 225 |
12 | 215.0 | 15.3 | 11.8 | 3.3 | 3.5 | 2.66 | 303.3 | 288.1 | 63.7 | 55.6 | 56.7 | 56.1 | 229 |
13 | 215.0 | 16.2 | 12.5 | 3.4 | 3.7 | 2.64 | 312.1 | 296.5 | 64.5 | 55.9 | 57.3 | 56.6 | 233 |
14 | 215.0 | 16.4 | 12.7 | 3.4 | 3.7 | 2.62 | 314.6 | 298.9 | 64.7 | 56.0 | 57.4 | 56.7 | 234 |
15 | 210.0 | 17.4 | 13.5 | 3.5 | 3.9 | 2.61 | 324.0 | 307.8 | 65.3 | 56.2 | 57.8 | 57.0 | 238 |
16 | 200.0 | 20.3 | 16.2 | 3.9 | 4.1 | 2.62 | 349.5 | 331.4 | 66.8 | 56.9 | 58.9 | 57.9 | 249 |
17 | 200.0 | 20.7 | 16.5 | 3.9 | 4.2 | 2.61 | 353.6 | 335.3 | 67.0 | 57.0 | 59.0 | 58.0 | 250 |
18 | 200.0 | 21.7 | 17.3 | 4.0 | 4.4 | 2.58 | 362.6 | 343.7 | 67.3 | 57.1 | 59.3 | 58.2 | 254 |
19 | 200.0 | 22.6 | 18.1 | 4.0 | 4.5 | 2.56 | 370.0 | 350.8 | 67.5 | 57.1 | 59.4 | 58.2 | 258 |
20 | 200.0 | 23.4 | 18.8 | 4.1 | 4.6 | 2.54 | 376.4 | 356.8 | 67.6 | 57.0 | 59.5 | 58.2 | 261 |
21 | 180.0 | 30.1 | 24.9 | 4.8 | 5.2 | 2.57 | 430.8 | 405.7 | 67.8 | 56.0 | 59.5 | 57.7 | 283 |
22 | 175.0 | 32.1 | 26.7 | 4.9 | 5.4 | 2.56 | 445.1 | 419.0 | 67.7 | 55.4 | 59.4 | 57.4 | 288 |
23 | 175.0 | 32.7 | 27.2 | 5.0 | 5.5 | 2.55 | 450.0 | 423.6 | 67.7 | 55.1 | 59.4 | 57.2 | 290 |
24 | 175.0 | 33.8 | 28.2 | 5.0 | 5.6 | 2.54 | 457.5 | 430.8 | 67.5 | 54.6 | 59.2 | 56.9 | 293 |
25 | 175.0 | 34.2 | 28.5 | 5.0 | 5.7 | 2.53 | 460.3 | 433.3 | 67.4 | 54.4 | 59.1 | 56.8 | 295 |
26 | 175.0 | 37.1 | 31.2 | 5.3 | 5.9 | 2.52 | 478.9 | 450.8 | 66.5 | 52.9 | 58.4 | 55.7 | 303 |
27 | 170.0 | 39.5 | 33.4 | 5.5 | 6.1 | 2.53 | 494.9 | 465.2 | 65.7 | 51.8 | 57.8 | 54.8 | 309 |
28 | 170.0 | 40.8 | 34.6 | 5.5 | 6.2 | 2.51 | 502.9 | 472.8 | 65.1 | 51.1 | 57.3 | 54.2 | 312 |
29 | 170.0 | 41.7 | 35.4 | 5.6 | 6.3 | 2.50 | 508.5 | 478.0 | 64.7 | 50.6 | 57.0 | 53.8 | 315 |
30 | 170.0 | 43.3 | 36.8 | 5.7 | 6.5 | 2.49 | 518.3 | 486.9 | 63.9 | 49.6 | 56.4 | 53.0 | 319 |
31 | 165.0 | 44.3 | 37.7 | 5.8 | 6.6 | 2.49 | 525.4 | 493.1 | 63.2 | 49.0 | 55.9 | 52.5 | 322 |
32 | 165.0 | 45.4 | 38.8 | 5.8 | 6.7 | 2.49 | 532.1 | 499.2 | 62.5 | 48.2 | 55.4 | 51.8 | 325 |
33 | 165.0 | 47.0 | 40.1 | 5.9 | 6.8 | 2.47 | 541.5 | 507.6 | 61.4 | 46.9 | 54.6 | 50.8 | 329 |
34 | 165.0 | 48.1 | 41.2 | 6.0 | 6.9 | 2.47 | 547.4 | 513.0 | 60.7 | 46.1 | 54.1 | 50.1 | 332 |
35 | 165.0 | 49.8 | 42.8 | 6.1 | 7.0 | 2.46 | 556.5 | 521.4 | 59.4 | 44.6 | 53.2 | 48.9 | 336 |
36 | 165.0 | 52.2 | 44.9 | 6.2 | 7.3 | 2.44 | 570.4 | 534.0 | 57.3 | 42.4 | 51.7 | 47.1 | 343 |
37 | 165.0 | 53.7 | 46.3 | 6.3 | 7.4 | 2.43 | 578.1 | 541.2 | 56.0 | 41.2 | 50.9 | 46.0 | 347 |
38 | 165.0 | 55.8 | 48.2 | 6.4 | 7.6 | 2.41 | 588.5 | 551.0 | 54.2 | 39.2 | 49.7 | 44.4 | 352 |
39 | 165.0 | 59.2 | 51.4 | 6.6 | 7.8 | 2.40 | 604.6 | 565.9 | 51.3 | 36.0 | 47.7 | 41.8 | 359 |
40 | 165.0 | 62.3 | 54.2 | 6.7 | 8.1 | 2.38 | 620.5 | 580.3 | 48.3 | 33.1 | 45.7 | 39.4 | 367 |
41 | 165.0 | 63.6 | 55.4 | 6.7 | 8.2 | 2.37 | 627.0 | 586.4 | 47.0 | 31.8 | 44.8 | 38.3 | 370 |
42 | 165.0 | 64.5 | 56.2 | 6.8 | 8.3 | 2.37 | 631.1 | 590.2 | 46.1 | 31.0 | 44.2 | 37.6 | 372 |
43 | 160.0 | 65.8 | 57.4 | 6.9 | 8.4 | 2.37 | 637.6 | 595.8 | 44.7 | 29.8 | 43.3 | 36.6 | 375 |
44 | 160.0 | 66.4 | 58.0 | 6.9 | 8.4 | 2.36 | 640.6 | 598.6 | 44.0 | 29.1 | 42.8 | 36.0 | 377 |
45 | 160.0 | 67.7 | 59.2 | 7.0 | 8.5 | 2.36 | 646.5 | 603.9 | 42.6 | 27.8 | 41.9 | 34.9 | 380 |
46 | 160.0 | 69.6 | 61.0 | 7.0 | 8.7 | 2.36 | 655.7 | 612.0 | 40.4 | 25.9 | 40.5 | 33.2 | 384 |
47 | 150.0 | 71.6 | 62.8 | 7.2 | 8.8 | 2.35 | 665.2 | 620.2 | 38.0 | 23.8 | 38.9 | 31.4 | 389 |
48 | 150.0 | 73.9 | 65.0 | 7.3 | 8.9 | 2.35 | 675.2 | 629.2 | 35.3 | 21.4 | 37.2 | 29.3 | 394 |
49 | 150.0 | 75.4 | 66.3 | 7.3 | 9.0 | 2.35 | 682.3 | 635.3 | 33.3 | 19.7 | 35.9 | 27.8 | 398 |
50 | 150.0 | 76.0 | 66.9 | 7.4 | 9.1 | 2.34 | 685.2 | 637.9 | 32.4 | 18.9 | 35.4 | 27.2 | 399 |
51 | 150.0 | 76.5 | 67.3 | 7.4 | 9.1 | 2.34 | 687.0 | 639.5 | 31.9 | 18.4 | 35.1 | 26.7 | 400 |
52 | 150.0 | 76.6 | 67.5 | 7.4 | 9.1 | 2.34 | 687.6 | 640.0 | 31.7 | 18.3 | 34.9 | 26.6 | 401 |
53 | 150.0 | 76.9 | 67.8 | 7.4 | 9.2 | 2.34 | 688.8 | 641.2 | 31.3 | 17.9 | 34.7 | 26.3 | 401 |
54 | 150.0 | 79.2 | 69.9 | 7.5 | 9.3 | 2.33 | 698.5 | 649.7 | 28.1 | 15.1 | 32.7 | 23.9 | 407 |
55 | 150.0 | 80.8 | 71.3 | 7.6 | 9.4 | 2.33 | 704.0 | 654.8 | 26.1 | 13.3 | 31.5 | 22.4 | 410 |
56 | 150.0 | 83.4 | 73.8 | 7.7 | 9.6 | 2.32 | 713.6 | 663.9 | 22.5 | 10.1 | 29.3 | 19.7 | 416 |
57 | 150.0 | 87.7 | 77.8 | 7.9 | 9.8 | 2.31 | 731.0 | 679.0 | 16.3 | 4.8 | 25.6 | 15.2 | 426 |
58 | 150.0 | 88.2 | 78.3 | 7.9 | 9.9 | 2.31 | 732.7 | 680.5 | 15.6 | 4.2 | 25.2 | 14.7 | 427 |
59 | 150.0 | 88.7 | 78.8 | 8.0 | 9.9 | 2.31 | 734.9 | 682.4 | 14.8 | 3.5 | 24.8 | 14.1 | 428 |
60 | 150.0 | 89.5 | 79.5 | 8.0 | 10.0 | 2.31 | 737.8 | 684.9 | 13.7 | 2.5 | 24.1 | 13.3 | 430 |
61 | 150.0 | 90.2 | 80.2 | 8.0 | 10.0 | 2.30 | 740.0 | 686.9 | 12.8 | 1.7 | 23.6 | 12.6 | 431 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 2.0MTPA CIL SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.77/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 7 Optimisation Results - Based on 1.0Mtpa HL, No Agglomeration
The following table and figure display the optimisation results based on the 1.0Mtpa HL scenario, assuming contract mining, agglomeration is not required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 1.0MTPA HL ONLY, NO AGGLOMERATION SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | | | $M | | [$/oz] |
1 | 275.0 | 3.0 | 1.5 | 1.1 | 1.4 | 2.68 | 123.3 | 71.5 | 19.4 | 17.4 | 17.4 | 17.4 | 179 |
2 | 260.0 | 3.9 | 2.2 | 1.3 | 1.7 | 2.70 | 144.8 | 84.0 | 22.1 | 19.4 | 19.5 | 19.5 | 187 |
3 | 250.0 | 4.7 | 2.9 | 1.5 | 1.9 | 2.73 | 162.9 | 94.5 | 24.2 | 21.0 | 21.1 | 21.0 | 194 |
4 | 250.0 | 5.0 | 3.0 | 1.6 | 1.9 | 2.71 | 168.5 | 97.7 | 24.8 | 21.4 | 21.5 | 21.4 | 196 |
5 | 245.0 | 5.8 | 3.7 | 1.7 | 2.1 | 2.71 | 185.2 | 107.4 | 26.5 | 22.6 | 22.9 | 22.7 | 203 |
6 | 245.0 | 6.1 | 3.9 | 1.8 | 2.2 | 2.69 | 191.2 | 110.9 | 27.1 | 23.0 | 23.3 | 23.2 | 206 |
7 | 245.0 | 6.6 | 4.3 | 1.8 | 2.3 | 2.67 | 200.0 | 116.0 | 27.9 | 23.5 | 23.9 | 23.7 | 210 |
8 | 245.0 | 6.6 | 4.3 | 1.8 | 2.3 | 2.67 | 200.5 | 116.3 | 27.9 | 23.6 | 24.0 | 23.8 | 210 |
9 | 245.0 | 7.2 | 4.7 | 1.9 | 2.5 | 2.63 | 210.0 | 121.8 | 28.6 | 24.0 | 24.5 | 24.2 | 215 |
10 | 245.0 | 7.7 | 5.1 | 2.0 | 2.6 | 2.62 | 218.0 | 126.5 | 29.2 | 24.3 | 24.9 | 24.6 | 219 |
11 | 245.0 | 8.0 | 5.4 | 2.0 | 2.7 | 2.61 | 223.6 | 129.7 | 29.6 | 24.5 | 25.2 | 24.8 | 222 |
12 | 240.0 | 8.6 | 5.8 | 2.1 | 2.8 | 2.59 | 232.4 | 134.8 | 30.1 | 24.7 | 25.5 | 25.1 | 227 |
13 | 240.0 | 8.8 | 6.0 | 2.1 | 2.8 | 2.58 | 235.3 | 136.5 | 30.3 | 24.7 | 25.6 | 25.2 | 228 |
14 | 235.0 | 9.4 | 6.5 | 2.2 | 2.9 | 2.58 | 243.4 | 141.2 | 30.6 | 24.8 | 25.9 | 25.4 | 233 |
15 | 235.0 | 9.9 | 6.9 | 2.3 | 3.0 | 2.55 | 250.3 | 145.2 | 30.9 | 24.9 | 26.1 | 25.5 | 237 |
16 | 235.0 | 10.6 | 7.5 | 2.3 | 3.2 | 2.53 | 259.5 | 150.5 | 31.2 | 25.0 | 26.3 | 25.6 | 242 |
17 | 235.0 | 11.1 | 7.8 | 2.4 | 3.3 | 2.50 | 265.4 | 153.9 | 31.4 | 25.0 | 26.4 | 25.7 | 246 |
18 | 235.0 | 11.5 | 8.1 | 2.4 | 3.4 | 2.48 | 270.9 | 157.1 | 31.5 | 24.9 | 26.5 | 25.7 | 249 |
19 | 235.0 | 12.0 | 8.5 | 2.4 | 3.5 | 2.47 | 276.4 | 160.3 | 31.6 | 24.8 | 26.5 | 25.7 | 253 |
20 | 235.0 | 12.3 | 8.7 | 2.5 | 3.5 | 2.46 | 279.6 | 162.2 | 31.6 | 24.7 | 26.5 | 25.6 | 255 |
21 | 235.0 | 13.0 | 9.3 | 2.5 | 3.7 | 2.44 | 288.3 | 167.2 | 31.7 | 24.5 | 26.5 | 25.5 | 261 |
22 | 235.0 | 13.9 | 10.0 | 2.6 | 3.8 | 2.41 | 297.2 | 172.4 | 31.6 | 24.1 | 26.5 | 25.3 | 267 |
23 | 230.0 | 14.4 | 10.4 | 2.7 | 3.9 | 2.40 | 302.3 | 175.3 | 31.6 | 23.9 | 26.5 | 25.2 | 270 |
24 | 215.0 | 17.1 | 12.9 | 3.1 | 4.2 | 2.43 | 328.4 | 190.4 | 31.1 | 23.0 | 26.1 | 24.6 | 287 |
25 | 215.0 | 17.3 | 13.0 | 3.1 | 4.2 | 2.43 | 329.8 | 191.3 | 31.1 | 23.0 | 26.1 | 24.5 | 287 |
26 | 210.0 | 18.2 | 13.9 | 3.2 | 4.4 | 2.41 | 339.3 | 196.8 | 30.8 | 22.5 | 25.9 | 24.2 | 293 |
27 | 210.0 | 18.4 | 14.0 | 3.2 | 4.4 | 2.40 | 341.2 | 197.9 | 30.7 | 22.3 | 25.8 | 24.1 | 295 |
28 | 210.0 | 18.8 | 14.3 | 3.2 | 4.5 | 2.39 | 345.1 | 200.1 | 30.6 | 22.1 | 25.7 | 23.9 | 297 |
29 | 200.0 | 23.2 | 18.1 | 3.6 | 5.1 | 2.37 | 386.5 | 224.2 | 28.7 | 19.7 | 24.5 | 22.1 | 322 |
30 | 200.0 | 24.1 | 18.8 | 3.6 | 5.2 | 2.35 | 394.3 | 228.7 | 28.2 | 19.1 | 24.2 | 21.7 | 327 |
31 | 200.0 | 24.4 | 19.1 | 3.6 | 5.3 | 2.34 | 396.9 | 230.2 | 28.1 | 18.9 | 24.1 | 21.5 | 328 |
32 | 195.0 | 25.4 | 20.0 | 3.7 | 5.4 | 2.34 | 405.9 | 235.4 | 27.5 | 18.3 | 23.7 | 21.0 | 333 |
33 | 195.0 | 25.9 | 20.4 | 3.7 | 5.5 | 2.32 | 410.1 | 237.9 | 27.2 | 17.9 | 23.5 | 20.7 | 336 |
34 | 185.0 | 28.7 | 22.9 | 4.0 | 5.8 | 2.32 | 431.7 | 250.4 | 25.4 | 15.9 | 22.5 | 19.2 | 348 |
35 | 185.0 | 28.8 | 23.0 | 4.0 | 5.8 | 2.31 | 432.7 | 251.0 | 25.4 | 15.8 | 22.5 | 19.2 | 349 |
36 | 175.0 | 31.6 | 25.6 | 4.3 | 6.0 | 2.35 | 453.5 | 263.0 | 23.5 | 14.0 | 21.4 | 17.7 | 361 |
37 | 175.0 | 32.2 | 26.1 | 4.3 | 6.1 | 2.34 | 458.4 | 265.9 | 23.0 | 13.5 | 21.1 | 17.3 | 364 |
38 | 175.0 | 33.1 | 26.9 | 4.3 | 6.2 | 2.33 | 465.2 | 269.8 | 22.3 | 12.8 | 20.8 | 16.8 | 368 |
39 | 175.0 | 34.4 | 28.0 | 4.4 | 6.4 | 2.31 | 474.0 | 274.9 | 21.3 | 11.7 | 20.2 | 16.0 | 373 |
40 | 175.0 | 35.1 | 28.7 | 4.5 | 6.4 | 2.32 | 479.1 | 277.9 | 20.7 | 11.1 | 19.9 | 15.5 | 376 |
41 | 175.0 | 35.9 | 29.4 | 4.5 | 6.5 | 2.31 | 484.5 | 281.0 | 20.0 | 10.5 | 19.6 | 15.0 | 379 |
42 | 170.0 | 36.9 | 30.3 | 4.6 | 6.6 | 2.31 | 491.8 | 285.2 | 19.0 | 9.7 | 19.1 | 14.4 | 383 |
43 | 165.0 | 40.3 | 33.3 | 4.8 | 7.0 | 2.30 | 514.8 | 298.6 | 15.9 | 6.8 | 17.5 | 12.1 | 397 |
44 | 165.0 | 42.6 | 35.4 | 5.0 | 7.1 | 2.31 | 529.5 | 307.1 | 13.8 | 4.9 | 16.4 | 10.7 | 405 |
45 | 165.0 | 42.8 | 35.6 | 5.0 | 7.2 | 2.30 | 531.5 | 308.3 | 13.4 | 4.6 | 16.3 | 10.4 | 406 |
46 | 165.0 | 43.6 | 36.3 | 5.0 | 7.3 | 2.29 | 536.1 | 311.0 | 12.7 | 3.9 | 15.9 | 9.9 | 409 |
47 | 165.0 | 44.4 | 37.0 | 5.1 | 7.3 | 2.30 | 540.8 | 313.7 | 12.0 | 3.3 | 15.5 | 9.4 | 412 |
48 | 165.0 | 45.0 | 37.6 | 5.1 | 7.4 | 2.30 | 544.6 | 315.9 | 11.3 | 2.8 | 15.2 | 9.0 | 414 |
49 | 165.0 | 47.3 | 39.7 | 5.2 | 7.7 | 2.28 | 559.9 | 324.7 | 8.7 | 0.5 | 14.0 | 7.3 | 423 |
50 | 165.0 | 47.5 | 39.8 | 5.2 | 7.7 | 2.27 | 560.9 | 325.3 | 8.5 | 0.4 | 13.9 | 7.1 | 424 |
51 | 165.0 | 48.8 | 41.0 | 5.3 | 7.8 | 2.27 | 568.5 | 329.7 | 7.0 | -0.9 | 13.2 | 6.2 | 429 |
52 | 165.0 | 49.5 | 41.6 | 5.3 | 7.9 | 2.26 | 572.3 | 331.9 | 6.3 | -1.6 | 12.9 | 5.7 | 431 |
53 | 165.0 | 49.9 | 42.0 | 5.3 | 7.9 | 2.25 | 574.4 | 333.1 | 5.9 | -2.0 | 12.7 | 5.4 | 432 |
54 | 165.0 | 50.7 | 42.7 | 5.3 | 8.0 | 2.25 | 579.3 | 336.0 | 4.9 | -2.8 | 12.3 | 4.7 | 436 |
55 | 165.0 | 51.6 | 43.5 | 5.4 | 8.1 | 2.25 | 584.2 | 338.8 | 3.8 | -3.6 | 11.8 | 4.1 | 439 |
56 | 165.0 | 51.8 | 43.7 | 5.4 | 8.1 | 2.24 | 585.3 | 339.5 | 3.6 | -3.8 | 11.7 | 3.9 | 440 |
57 | 165.0 | 52.8 | 44.6 | 5.4 | 8.2 | 2.24 | 590.4 | 342.4 | 2.4 | -4.8 | 11.1 | 3.2 | 443 |
58 | 165.0 | 54.2 | 45.8 | 5.5 | 8.4 | 2.22 | 597.5 | 346.5 | 0.8 | -6.2 | 10.4 | 2.1 | 448 |
59 | 165.0 | 55.2 | 46.8 | 5.6 | 8.4 | 2.22 | 602.7 | 349.6 | -0.5 | -7.1 | 9.9 | 1.4 | 451 |
60 | 160.0 | 64.1 | 55.0 | 6.0 | 9.2 | 2.20 | 649.2 | 376.5 | -11.8 | -16.1 | 5.2 | -5.5 | 481 |
61 | 160.0 | 64.5 | 55.3 | 6.0 | 9.2 | 2.19 | 651.1 | 377.6 | -12.3 | -16.5 | 5.0 | -5.8 | 483 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 1.0MTPA HL ONLY, NO AGGLOMERATION SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 8 Optimisation Results - Based on 1.0Mtpa HL, With Agglomeration
The following table and figure display the optimisation results based on the 1.0Mtpa HL scenario, assuming contract mining, agglomeration is required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 1.0MTPA HL ONLY WITH AGGLOMERATION SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | | | $M | | [$/oz] |
1 | 280.0 | 1.6 | 0.8 | 1.0 | 0.8 | 3.11 | 79.9 | 46.3 | 12.3 | 11.4 | 11.4 | 11.4 | 184 |
2 | 280.0 | 1.8 | 0.9 | 1.0 | 0.9 | 3.04 | 88.2 | 51.1 | 13.3 | 12.2 | 12.2 | 12.2 | 190 |
3 | 280.0 | 2.1 | 1.1 | 1.1 | 1.0 | 3.01 | 96.3 | 55.8 | 14.3 | 13.0 | 13.0 | 13.0 | 195 |
4 | 275.0 | 2.5 | 1.4 | 1.3 | 1.1 | 2.97 | 106.6 | 61.8 | 15.4 | 14.0 | 14.0 | 14.0 | 201 |
5 | 250.0 | 4.4 | 2.7 | 1.6 | 1.6 | 2.87 | 152.2 | 88.3 | 20.1 | 17.7 | 18.0 | 17.8 | 222 |
6 | 250.0 | 4.7 | 2.9 | 1.7 | 1.8 | 2.85 | 160.5 | 93.1 | 20.9 | 18.3 | 18.6 | 18.4 | 225 |
7 | 250.0 | 4.9 | 3.1 | 1.7 | 1.8 | 2.83 | 165.0 | 95.7 | 21.3 | 18.5 | 18.9 | 18.7 | 227 |
8 | 245.0 | 5.7 | 3.7 | 1.9 | 2.0 | 2.84 | 179.9 | 104.4 | 22.6 | 19.4 | 19.8 | 19.6 | 234 |
9 | 245.0 | 6.0 | 4.0 | 1.9 | 2.0 | 2.83 | 186.2 | 108.0 | 23.1 | 19.7 | 20.2 | 20.0 | 237 |
10 | 245.0 | 6.4 | 4.3 | 2.0 | 2.1 | 2.81 | 194.0 | 112.5 | 23.6 | 20.1 | 20.7 | 20.4 | 240 |
11 | 245.0 | 6.6 | 4.4 | 2.0 | 2.2 | 2.80 | 196.7 | 114.1 | 23.8 | 20.2 | 20.8 | 20.5 | 242 |
12 | 245.0 | 6.9 | 4.7 | 2.1 | 2.2 | 2.80 | 202.0 | 117.2 | 24.1 | 20.4 | 21.1 | 20.7 | 244 |
13 | 245.0 | 7.4 | 5.0 | 2.1 | 2.4 | 2.77 | 210.3 | 122.0 | 24.5 | 20.6 | 21.4 | 21.0 | 249 |
14 | 240.0 | 7.9 | 5.4 | 2.2 | 2.4 | 2.77 | 217.3 | 126.0 | 24.9 | 20.8 | 21.6 | 21.2 | 253 |
15 | 240.0 | 8.4 | 5.9 | 2.3 | 2.6 | 2.75 | 225.4 | 130.7 | 25.2 | 20.9 | 21.9 | 21.4 | 257 |
16 | 235.0 | 8.9 | 6.3 | 2.4 | 2.6 | 2.76 | 231.9 | 134.5 | 25.4 | 21.0 | 22.0 | 21.5 | 261 |
17 | 235.0 | 9.3 | 6.6 | 2.5 | 2.7 | 2.74 | 236.8 | 137.4 | 25.5 | 21.0 | 22.1 | 21.6 | 264 |
18 | 235.0 | 9.6 | 6.8 | 2.5 | 2.7 | 2.74 | 240.5 | 139.5 | 25.6 | 21.0 | 22.2 | 21.6 | 266 |
19 | 235.0 | 10.0 | 7.2 | 2.6 | 2.8 | 2.73 | 245.4 | 142.3 | 25.7 | 20.9 | 22.2 | 21.6 | 269 |
20 | 235.0 | 10.3 | 7.5 | 2.6 | 2.9 | 2.71 | 250.3 | 145.1 | 25.7 | 20.8 | 22.2 | 21.5 | 273 |
21 | 235.0 | 10.8 | 7.8 | 2.6 | 3.0 | 2.68 | 256.7 | 148.9 | 25.8 | 20.7 | 22.2 | 21.5 | 277 |
22 | 235.0 | 11.3 | 8.3 | 2.7 | 3.1 | 2.67 | 262.6 | 152.3 | 25.8 | 20.6 | 22.2 | 21.4 | 281 |
23 | 235.0 | 11.6 | 8.5 | 2.7 | 3.1 | 2.65 | 266.0 | 154.3 | 25.7 | 20.5 | 22.2 | 21.3 | 283 |
24 | 235.0 | 12.1 | 8.9 | 2.8 | 3.2 | 2.63 | 271.9 | 157.7 | 25.6 | 20.3 | 22.1 | 21.2 | 287 |
25 | 235.0 | 12.7 | 9.4 | 2.9 | 3.3 | 2.62 | 278.3 | 161.4 | 25.5 | 20.1 | 22.0 | 21.0 | 292 |
26 | 230.0 | 13.6 | 10.2 | 3.0 | 3.4 | 2.61 | 286.8 | 166.3 | 25.3 | 19.7 | 21.9 | 20.8 | 298 |
27 | 215.0 | 16.6 | 12.9 | 3.5 | 3.7 | 2.64 | 315.2 | 182.8 | 24.3 | 18.3 | 21.2 | 19.7 | 317 |
28 | 215.0 | 16.7 | 13.0 | 3.5 | 3.7 | 2.64 | 316.0 | 183.3 | 24.3 | 18.3 | 21.2 | 19.7 | 318 |
29 | 215.0 | 16.9 | 13.1 | 3.5 | 3.8 | 2.62 | 318.5 | 184.7 | 24.1 | 18.1 | 21.1 | 19.6 | 319 |
30 | 210.0 | 17.6 | 13.7 | 3.6 | 3.9 | 2.61 | 324.9 | 188.4 | 23.8 | 17.6 | 20.8 | 19.2 | 324 |
31 | 210.0 | 18.0 | 14.1 | 3.6 | 3.9 | 2.60 | 329.0 | 190.8 | 23.5 | 17.3 | 20.7 | 19.0 | 327 |
32 | 200.0 | 21.1 | 16.9 | 4.0 | 4.2 | 2.62 | 356.2 | 206.6 | 21.7 | 15.5 | 19.4 | 17.4 | 345 |
33 | 200.0 | 21.4 | 17.1 | 4.0 | 4.3 | 2.62 | 358.3 | 207.8 | 21.6 | 15.3 | 19.3 | 17.3 | 346 |
34 | 200.0 | 23.5 | 18.9 | 4.1 | 4.6 | 2.56 | 378.4 | 219.5 | 20.0 | 13.7 | 18.2 | 15.9 | 359 |
35 | 195.0 | 24.4 | 19.7 | 4.2 | 4.7 | 2.56 | 386.2 | 224.0 | 19.3 | 13.0 | 17.8 | 15.4 | 364 |
36 | 195.0 | 24.9 | 20.2 | 4.2 | 4.8 | 2.55 | 390.7 | 226.6 | 18.8 | 12.6 | 17.5 | 15.1 | 367 |
37 | 195.0 | 25.2 | 20.4 | 4.3 | 4.8 | 2.55 | 393.1 | 228.0 | 18.6 | 12.3 | 17.4 | 14.9 | 368 |
38 | 175.0 | 29.9 | 24.8 | 4.8 | 5.1 | 2.60 | 428.1 | 248.3 | 14.9 | 8.9 | 15.1 | 12.0 | 390 |
39 | 175.0 | 30.7 | 25.4 | 4.9 | 5.2 | 2.58 | 433.8 | 251.6 | 14.3 | 8.2 | 14.7 | 11.4 | 393 |
40 | 175.0 | 31.2 | 25.9 | 4.9 | 5.3 | 2.57 | 437.3 | 253.6 | 13.8 | 7.8 | 14.4 | 11.1 | 396 |
41 | 175.0 | 32.1 | 26.7 | 5.0 | 5.4 | 2.56 | 444.1 | 257.6 | 13.0 | 7.0 | 13.9 | 10.4 | 400 |
42 | 175.0 | 32.3 | 26.9 | 5.0 | 5.4 | 2.56 | 445.5 | 258.4 | 12.8 | 6.8 | 13.7 | 10.3 | 401 |
43 | 175.0 | 33.6 | 28.1 | 5.1 | 5.5 | 2.56 | 454.2 | 263.5 | 11.6 | 5.6 | 13.0 | 9.3 | 406 |
44 | 175.0 | 34.5 | 28.9 | 5.2 | 5.6 | 2.55 | 460.5 | 267.1 | 10.6 | 4.7 | 12.5 | 8.6 | 410 |
45 | 175.0 | 35.1 | 29.4 | 5.2 | 5.7 | 2.55 | 464.1 | 269.2 | 10.1 | 4.2 | 12.2 | 8.2 | 413 |
46 | 165.0 | 38.0 | 32.1 | 5.4 | 5.9 | 2.55 | 483.8 | 280.6 | 6.9 | 1.5 | 10.4 | 5.9 | 426 |
47 | 165.0 | 39.1 | 33.1 | 5.5 | 6.0 | 2.54 | 491.9 | 285.3 | 5.5 | 0.4 | 9.6 | 5.0 | 431 |
48 | 165.0 | 42.1 | 35.8 | 5.7 | 6.3 | 2.54 | 510.2 | 295.9 | 2.4 | -2.3 | 7.9 | 2.8 | 442 |
49 | 165.0 | 42.4 | 36.1 | 5.7 | 6.3 | 2.53 | 511.9 | 296.9 | 2.1 | -2.6 | 7.7 | 2.6 | 443 |
50 | 165.0 | 43.9 | 37.5 | 5.9 | 6.4 | 2.53 | 520.8 | 302.1 | 0.4 | -4.0 | 6.9 | 1.4 | 449 |
51 | 165.0 | 44.2 | 37.8 | 5.9 | 6.4 | 2.53 | 522.6 | 303.1 | 0.1 | -4.3 | 6.7 | 1.2 | 450 |
52 | 165.0 | 45.0 | 38.5 | 5.9 | 6.5 | 2.53 | 527.5 | 305.9 | -0.9 | -5.1 | 6.2 | 0.5 | 453 |
53 | 165.0 | 45.4 | 38.9 | 6.0 | 6.5 | 2.53 | 529.7 | 307.2 | -1.4 | -5.5 | 5.9 | 0.2 | 455 |
54 | 165.0 | 45.9 | 39.3 | 6.0 | 6.6 | 2.52 | 532.2 | 308.7 | -1.9 | -6.0 | 5.6 | -0.2 | 456 |
55 | 165.0 | 47.3 | 40.6 | 6.0 | 6.7 | 2.50 | 541.5 | 314.1 | -4.1 | -7.7 | 4.6 | -1.6 | 463 |
56 | 165.0 | 48.2 | 41.4 | 6.1 | 6.8 | 2.50 | 546.0 | 316.7 | -5.1 | -8.5 | 4.1 | -2.2 | 466 |
57 | 165.0 | 48.9 | 42.0 | 6.1 | 6.9 | 2.49 | 549.7 | 318.8 | -6.0 | -9.4 | 3.6 | -2.9 | 469 |
58 | 165.0 | 50.0 | 43.1 | 6.2 | 6.9 | 2.49 | 555.4 | 322.1 | -7.4 | -10.6 | 3.0 | -3.8 | 473 |
59 | 165.0 | 50.6 | 43.6 | 6.2 | 7.0 | 2.49 | 558.5 | 323.9 | -8.2 | -11.2 | 2.6 | -4.3 | 475 |
60 | 165.0 | 51.4 | 44.4 | 6.3 | 7.1 | 2.48 | 562.8 | 326.4 | -9.3 | -12.1 | 2.0 | -5.0 | 478 |
61 | 165.0 | 51.5 | 44.4 | 6.3 | 7.1 | 2.48 | 563.1 | 326.6 | -9.4 | -12.2 | 2.0 | -5.1 | 479 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
0
PIT OPTIMISATION RESULTS - 1.0MTPA HL ONLY WITH AGGLOMERATION SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 9 Optimisation Results - Based on 1.5Mtpa HL, No Agglomeration
The following table and figure display the optimisation results based on the 1.5Mtpa HL scenario, assuming contract mining, agglomeration is not required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS 1.5MTPA HL ONLY, NO AGGLOMERATION SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | | | $M | | [$/oz] |
1 | 250.0 | 4.9 | 2.9 | 1.5 | 1.9 | 2.69 | 167.3 | 97.0 | 27.0 | 24.4 | 24.4 | 24.4 | 172 |
2 | 250.0 | 5.0 | 3.0 | 1.5 | 2.0 | 2.68 | 170.1 | 98.7 | 27.4 | 24.6 | 24.6 | 24.6 | 173 |
3 | 250.0 | 5.6 | 3.5 | 1.6 | 2.1 | 2.65 | 183.0 | 106.2 | 28.9 | 25.8 | 25.9 | 25.9 | 178 |
4 | 245.0 | 6.2 | 4.0 | 1.8 | 2.3 | 2.66 | 193.9 | 112.5 | 30.1 | 26.8 | 26.9 | 26.8 | 182 |
5 | 245.0 | 6.6 | 4.2 | 1.8 | 2.4 | 2.64 | 200.1 | 116.0 | 30.7 | 27.2 | 27.4 | 27.3 | 185 |
6 | 245.0 | 6.8 | 4.4 | 1.8 | 2.4 | 2.62 | 204.9 | 118.8 | 31.2 | 27.6 | 27.7 | 27.6 | 187 |
7 | 245.0 | 7.4 | 4.8 | 1.9 | 2.6 | 2.60 | 214.6 | 124.5 | 32.1 | 28.2 | 28.4 | 28.3 | 192 |
8 | 245.0 | 7.9 | 5.2 | 2.0 | 2.7 | 2.58 | 222.8 | 129.2 | 32.8 | 28.6 | 28.9 | 28.7 | 196 |
9 | 245.0 | 8.3 | 5.5 | 2.0 | 2.8 | 2.55 | 229.3 | 133.0 | 33.3 | 28.9 | 29.2 | 29.1 | 200 |
10 | 240.0 | 8.8 | 5.9 | 2.1 | 2.9 | 2.55 | 235.9 | 136.8 | 33.8 | 29.1 | 29.6 | 29.4 | 203 |
11 | 240.0 | 9.1 | 6.1 | 2.1 | 3.0 | 2.52 | 240.9 | 139.7 | 34.1 | 29.3 | 29.8 | 29.5 | 206 |
12 | 235.0 | 9.9 | 6.8 | 2.2 | 3.1 | 2.50 | 251.5 | 145.8 | 34.8 | 29.7 | 30.3 | 30.0 | 212 |
13 | 235.0 | 10.6 | 7.3 | 2.3 | 3.3 | 2.48 | 260.7 | 151.2 | 35.3 | 30.0 | 30.7 | 30.3 | 217 |
14 | 235.0 | 11.2 | 7.8 | 2.3 | 3.4 | 2.47 | 268.1 | 155.5 | 35.6 | 30.2 | 30.9 | 30.6 | 221 |
15 | 235.0 | 11.4 | 8.0 | 2.3 | 3.4 | 2.45 | 270.9 | 157.1 | 35.7 | 30.2 | 31.0 | 30.6 | 223 |
16 | 235.0 | 12.1 | 8.5 | 2.4 | 3.6 | 2.44 | 278.5 | 161.5 | 36.0 | 30.3 | 31.2 | 30.7 | 227 |
17 | 235.0 | 12.3 | 8.7 | 2.4 | 3.6 | 2.42 | 281.0 | 163.0 | 36.1 | 30.3 | 31.3 | 30.8 | 229 |
18 | 235.0 | 13.5 | 9.6 | 2.5 | 3.8 | 2.38 | 294.2 | 170.7 | 36.4 | 30.2 | 31.5 | 30.8 | 237 |
19 | 235.0 | 13.9 | 9.9 | 2.5 | 3.9 | 2.37 | 298.2 | 173.0 | 36.4 | 30.1 | 31.5 | 30.8 | 240 |
20 | 235.0 | 14.3 | 10.3 | 2.6 | 4.0 | 2.36 | 302.3 | 175.3 | 36.5 | 30.0 | 31.5 | 30.8 | 242 |
21 | 230.0 | 15.3 | 11.2 | 2.7 | 4.1 | 2.36 | 312.4 | 181.2 | 36.5 | 29.8 | 31.5 | 30.7 | 249 |
22 | 230.0 | 15.6 | 11.4 | 2.7 | 4.2 | 2.34 | 315.2 | 182.8 | 36.5 | 29.7 | 31.5 | 30.6 | 251 |
23 | 215.0 | 18.0 | 13.6 | 3.1 | 4.4 | 2.38 | 337.8 | 195.9 | 36.3 | 29.1 | 31.4 | 30.2 | 265 |
24 | 210.0 | 18.7 | 14.2 | 3.1 | 4.5 | 2.36 | 345.1 | 200.1 | 36.2 | 28.8 | 31.3 | 30.0 | 269 |
25 | 210.0 | 19.7 | 15.0 | 3.2 | 4.7 | 2.33 | 355.2 | 206.0 | 35.9 | 28.5 | 31.1 | 29.8 | 276 |
26 | 200.0 | 23.7 | 18.4 | 3.5 | 5.2 | 2.32 | 391.8 | 227.2 | 34.8 | 27.0 | 30.3 | 28.6 | 297 |
27 | 200.0 | 23.9 | 18.6 | 3.5 | 5.3 | 2.32 | 393.7 | 228.3 | 34.8 | 26.9 | 30.3 | 28.6 | 298 |
28 | 200.0 | 25.0 | 19.5 | 3.6 | 5.4 | 2.30 | 402.8 | 233.6 | 34.4 | 26.3 | 30.0 | 28.1 | 303 |
29 | 195.0 | 25.8 | 20.3 | 3.7 | 5.6 | 2.30 | 410.7 | 238.2 | 34.0 | 25.8 | 29.7 | 27.8 | 307 |
30 | 195.0 | 26.5 | 20.8 | 3.7 | 5.7 | 2.29 | 415.8 | 241.2 | 33.7 | 25.4 | 29.5 | 27.5 | 310 |
31 | 195.0 | 27.3 | 21.5 | 3.7 | 5.8 | 2.27 | 422.0 | 244.8 | 33.4 | 24.8 | 29.3 | 27.1 | 314 |
32 | 185.0 | 29.2 | 23.2 | 3.9 | 6.0 | 2.28 | 437.3 | 253.6 | 32.3 | 23.7 | 28.6 | 26.1 | 323 |
33 | 185.0 | 29.6 | 23.5 | 3.9 | 6.0 | 2.27 | 440.0 | 255.2 | 32.1 | 23.4 | 28.5 | 26.0 | 324 |
34 | 175.0 | 32.9 | 26.6 | 4.2 | 6.3 | 2.29 | 464.6 | 269.5 | 30.1 | 21.4 | 27.1 | 24.3 | 338 |
35 | 175.0 | 33.3 | 27.0 | 4.2 | 6.4 | 2.29 | 467.9 | 271.4 | 29.9 | 21.1 | 27.0 | 24.0 | 340 |
36 | 175.0 | 33.9 | 27.5 | 4.3 | 6.4 | 2.28 | 472.1 | 273.8 | 29.5 | 20.7 | 26.7 | 23.7 | 342 |
37 | 175.0 | 34.9 | 28.4 | 4.3 | 6.5 | 2.28 | 479.3 | 278.0 | 28.8 | 19.9 | 26.3 | 23.1 | 347 |
38 | 175.0 | 36.2 | 29.5 | 4.4 | 6.7 | 2.27 | 488.1 | 283.1 | 27.9 | 18.9 | 25.7 | 22.3 | 352 |
39 | 175.0 | 37.4 | 30.6 | 4.5 | 6.8 | 2.25 | 496.1 | 287.8 | 27.0 | 17.9 | 25.1 | 21.5 | 356 |
40 | 170.0 | 38.6 | 31.7 | 4.6 | 7.0 | 2.25 | 504.6 | 292.7 | 26.0 | 17.0 | 24.5 | 20.8 | 361 |
41 | 165.0 | 39.9 | 32.8 | 4.6 | 7.1 | 2.25 | 514.3 | 298.3 | 24.8 | 15.9 | 23.8 | 19.9 | 367 |
42 | 165.0 | 43.2 | 35.9 | 4.9 | 7.3 | 2.27 | 534.9 | 310.3 | 22.1 | 13.3 | 22.2 | 17.8 | 379 |
43 | 165.0 | 43.5 | 36.1 | 4.9 | 7.4 | 2.27 | 536.8 | 311.3 | 21.9 | 13.1 | 22.0 | 17.6 | 380 |
44 | 165.0 | 44.1 | 36.7 | 4.9 | 7.4 | 2.26 | 540.6 | 313.5 | 21.3 | 12.5 | 21.7 | 17.1 | 382 |
45 | 165.0 | 46.5 | 38.8 | 5.0 | 7.7 | 2.25 | 556.4 | 322.7 | 18.9 | 10.4 | 20.3 | 15.4 | 391 |
46 | 165.0 | 47.8 | 40.0 | 5.1 | 7.8 | 2.25 | 564.1 | 327.2 | 17.7 | 9.4 | 19.5 | 14.5 | 396 |
47 | 165.0 | 48.1 | 40.3 | 5.1 | 7.9 | 2.24 | 566.0 | 328.3 | 17.4 | 9.1 | 19.4 | 14.2 | 397 |
48 | 165.0 | 49.4 | 41.4 | 5.2 | 8.0 | 2.23 | 573.1 | 332.4 | 16.2 | 7.9 | 18.6 | 13.3 | 401 |
49 | 165.0 | 50.2 | 42.1 | 5.2 | 8.1 | 2.22 | 578.0 | 335.2 | 15.4 | 7.2 | 18.1 | 12.7 | 404 |
50 | 165.0 | 50.5 | 42.4 | 5.2 | 8.1 | 2.22 | 579.9 | 336.3 | 15.0 | 6.9 | 17.9 | 12.4 | 405 |
51 | 165.0 | 50.6 | 42.5 | 5.2 | 8.1 | 2.22 | 580.4 | 336.6 | 14.9 | 6.8 | 17.9 | 12.3 | 406 |
52 | 165.0 | 51.4 | 43.2 | 5.3 | 8.2 | 2.21 | 584.4 | 338.9 | 14.2 | 6.1 | 17.4 | 11.8 | 408 |
53 | 165.0 | 53.0 | 44.6 | 5.3 | 8.4 | 2.21 | 593.1 | 344.0 | 12.4 | 4.5 | 16.4 | 10.4 | 414 |
54 | 165.0 | 53.7 | 45.3 | 5.4 | 8.4 | 2.20 | 596.8 | 346.2 | 11.6 | 3.7 | 16.0 | 9.9 | 416 |
55 | 165.0 | 54.6 | 46.1 | 5.4 | 8.5 | 2.20 | 601.4 | 348.8 | 10.7 | 2.8 | 15.5 | 9.1 | 419 |
56 | 165.0 | 57.6 | 48.8 | 5.6 | 8.8 | 2.18 | 617.7 | 358.3 | 7.1 | -0.3 | 13.5 | 6.6 | 430 |
57 | 165.0 | 63.5 | 54.2 | 5.8 | 9.3 | 2.17 | 647.0 | 375.3 | 0.5 | -6.2 | 9.9 | 1.8 | 449 |
58 | 160.0 | 65.3 | 55.9 | 5.9 | 9.4 | 2.17 | 657.0 | 381.1 | -1.7 | -8.0 | 8.6 | 0.3 | 455 |
59 | 155.0 | 65.7 | 56.3 | 5.9 | 9.5 | 2.16 | 659.4 | 382.5 | -2.3 | -8.5 | 8.3 | -0.1 | 456 |
60 | 155.0 | 66.0 | 56.5 | 5.9 | 9.5 | 2.16 | 660.6 | 383.1 | -2.6 | -8.7 | 8.1 | -0.3 | 457 |
61 | 150.0 | 66.5 | 56.9 | 6.0 | 9.6 | 2.16 | 663.4 | 384.8 | -3.3 | -9.2 | 7.7 | -0.7 | 459 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS 1.5MTPA HL ONLY, NO AGGLOMERATION SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 10 Optimisation Results - Based on 1.5Mtpa HL, With Agglomeration
The following table and figure display the optimisation results based on the 1.5Mtpa HL scenario, assuming contract mining, agglomeration is required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 1.5MTPA HL ONLY WITH AGGLOMERATION SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | | [koz] | | | $M | | [$/oz] |
1 | 280.0 | 2.2 | 1.2 | 1.1 | 1.1 | 2.91 | 101.3 | 58.7 | 16.1 | 15.0 | 15.0 | 15.0 | 176 |
2 | 275.0 | 2.7 | 1.5 | 1.2 | 1.2 | 2.86 | 113.7 | 65.9 | 17.6 | 16.3 | 16.3 | 16.3 | 183 |
3 | 260.0 | 4.0 | 2.3 | 1.4 | 1.6 | 2.77 | 146.4 | 84.9 | 21.4 | 19.5 | 19.5 | 19.5 | 198 |
4 | 250.0 | 4.7 | 2.9 | 1.6 | 1.8 | 2.79 | 161.9 | 93.9 | 23.2 | 21.0 | 21.0 | 21.0 | 203 |
5 | 250.0 | 4.9 | 3.1 | 1.6 | 1.9 | 2.78 | 166.6 | 96.6 | 23.6 | 21.4 | 21.4 | 21.4 | 205 |
6 | 245.0 | 5.8 | 3.7 | 1.8 | 2.1 | 2.78 | 183.8 | 106.6 | 25.3 | 22.7 | 22.8 | 22.7 | 213 |
7 | 245.0 | 6.2 | 4.0 | 1.9 | 2.1 | 2.76 | 190.4 | 110.4 | 25.9 | 23.1 | 23.3 | 23.2 | 216 |
8 | 245.0 | 6.6 | 4.3 | 1.9 | 2.2 | 2.74 | 197.8 | 114.7 | 26.5 | 23.6 | 23.8 | 23.7 | 219 |
9 | 245.0 | 6.6 | 4.4 | 1.9 | 2.3 | 2.74 | 198.9 | 115.4 | 26.6 | 23.7 | 23.8 | 23.7 | 219 |
10 | 245.0 | 7.1 | 4.7 | 2.0 | 2.4 | 2.72 | 206.2 | 119.6 | 27.1 | 24.0 | 24.2 | 24.1 | 223 |
11 | 245.0 | 7.5 | 5.1 | 2.1 | 2.5 | 2.70 | 214.3 | 124.3 | 27.7 | 24.4 | 24.7 | 24.5 | 228 |
12 | 240.0 | 8.2 | 5.6 | 2.2 | 2.6 | 2.69 | 223.4 | 129.6 | 28.2 | 24.7 | 25.1 | 24.9 | 232 |
13 | 240.0 | 8.5 | 5.9 | 2.2 | 2.6 | 2.69 | 228.4 | 132.5 | 28.5 | 24.8 | 25.2 | 25.0 | 235 |
14 | 235.0 | 9.1 | 6.3 | 2.3 | 2.7 | 2.67 | 236.0 | 136.9 | 28.8 | 25.0 | 25.5 | 25.2 | 239 |
15 | 235.0 | 9.4 | 6.6 | 2.3 | 2.8 | 2.67 | 240.2 | 139.3 | 29.0 | 25.1 | 25.6 | 25.3 | 242 |
16 | 235.0 | 9.8 | 6.9 | 2.4 | 2.9 | 2.65 | 245.8 | 142.6 | 29.2 | 25.1 | 25.7 | 25.4 | 245 |
17 | 235.0 | 10.4 | 7.4 | 2.5 | 3.0 | 2.62 | 254.1 | 147.4 | 29.4 | 25.1 | 25.8 | 25.5 | 250 |
18 | 235.0 | 10.9 | 7.8 | 2.5 | 3.1 | 2.61 | 259.9 | 150.8 | 29.6 | 25.2 | 26.0 | 25.6 | 254 |
19 | 235.0 | 11.3 | 8.1 | 2.5 | 3.2 | 2.58 | 265.9 | 154.2 | 29.6 | 25.2 | 26.0 | 25.6 | 258 |
20 | 235.0 | 11.6 | 8.4 | 2.6 | 3.3 | 2.57 | 269.1 | 156.1 | 29.7 | 25.2 | 26.1 | 25.6 | 260 |
21 | 235.0 | 12.2 | 8.8 | 2.6 | 3.4 | 2.55 | 275.5 | 159.8 | 29.7 | 25.1 | 26.1 | 25.6 | 264 |
22 | 235.0 | 12.8 | 9.3 | 2.7 | 3.5 | 2.54 | 282.1 | 163.6 | 29.7 | 25.0 | 26.0 | 25.5 | 269 |
23 | 235.0 | 13.5 | 9.9 | 2.8 | 3.6 | 2.52 | 289.5 | 167.9 | 29.6 | 24.8 | 26.0 | 25.4 | 274 |
24 | 230.0 | 14.2 | 10.6 | 2.9 | 3.7 | 2.51 | 297.2 | 172.4 | 29.5 | 24.5 | 25.9 | 25.2 | 279 |
25 | 215.0 | 16.9 | 12.9 | 3.3 | 3.9 | 2.55 | 321.5 | 186.5 | 28.9 | 23.7 | 25.5 | 24.6 | 295 |
26 | 215.0 | 17.1 | 13.1 | 3.3 | 4.0 | 2.53 | 324.1 | 188.0 | 28.9 | 23.5 | 25.4 | 24.5 | 297 |
27 | 215.0 | 17.3 | 13.3 | 3.3 | 4.0 | 2.52 | 326.1 | 189.2 | 28.8 | 23.4 | 25.3 | 24.4 | 298 |
28 | 210.0 | 18.2 | 14.1 | 3.4 | 4.1 | 2.51 | 334.9 | 194.2 | 28.4 | 22.9 | 25.1 | 24.0 | 304 |
29 | 210.0 | 18.4 | 14.2 | 3.4 | 4.2 | 2.50 | 336.7 | 195.3 | 28.3 | 22.8 | 25.0 | 23.9 | 305 |
30 | 200.0 | 22.7 | 18.0 | 3.8 | 4.7 | 2.48 | 376.0 | 218.1 | 26.2 | 20.4 | 23.4 | 21.9 | 330 |
31 | 200.0 | 23.6 | 18.8 | 3.9 | 4.8 | 2.48 | 384.2 | 222.8 | 25.7 | 19.9 | 23.0 | 21.5 | 335 |
32 | 200.0 | 24.1 | 19.2 | 3.9 | 4.9 | 2.46 | 388.5 | 225.4 | 25.4 | 19.6 | 22.8 | 21.2 | 337 |
33 | 195.0 | 25.1 | 20.0 | 4.0 | 5.0 | 2.46 | 397.1 | 230.3 | 24.8 | 18.9 | 22.3 | 20.6 | 342 |
34 | 195.0 | 25.4 | 20.3 | 4.0 | 5.1 | 2.45 | 400.0 | 232.0 | 24.5 | 18.7 | 22.1 | 20.4 | 344 |
35 | 185.0 | 28.0 | 22.6 | 4.2 | 5.3 | 2.45 | 419.7 | 243.4 | 22.8 | 16.9 | 20.9 | 18.9 | 356 |
36 | 185.0 | 28.7 | 23.3 | 4.3 | 5.5 | 2.43 | 425.6 | 246.9 | 22.2 | 16.3 | 20.5 | 18.4 | 360 |
37 | 175.0 | 31.4 | 25.8 | 4.6 | 5.6 | 2.47 | 445.3 | 258.3 | 20.3 | 14.4 | 19.2 | 16.8 | 371 |
38 | 175.0 | 31.8 | 26.2 | 4.6 | 5.7 | 2.46 | 448.7 | 260.2 | 20.0 | 14.1 | 18.9 | 16.5 | 373 |
39 | 175.0 | 32.7 | 26.9 | 4.7 | 5.8 | 2.46 | 454.8 | 263.8 | 19.3 | 13.4 | 18.4 | 15.9 | 377 |
40 | 175.0 | 33.5 | 27.7 | 4.7 | 5.8 | 2.45 | 460.5 | 267.1 | 18.6 | 12.7 | 18.0 | 15.3 | 380 |
41 | 175.0 | 35.0 | 29.0 | 4.8 | 6.0 | 2.44 | 470.1 | 272.7 | 17.4 | 11.4 | 17.2 | 14.3 | 386 |
42 | 175.0 | 35.6 | 29.6 | 4.9 | 6.1 | 2.44 | 474.5 | 275.2 | 16.8 | 10.9 | 16.8 | 13.8 | 389 |
43 | 175.0 | 36.1 | 30.0 | 4.9 | 6.1 | 2.43 | 477.9 | 277.2 | 16.3 | 10.5 | 16.4 | 13.5 | 391 |
44 | 165.0 | 39.3 | 32.9 | 5.2 | 6.4 | 2.44 | 500.1 | 290.1 | 13.1 | 7.7 | 14.3 | 11.0 | 405 |
45 | 165.0 | 42.2 | 35.6 | 5.4 | 6.6 | 2.44 | 518.4 | 300.7 | 10.2 | 5.0 | 12.5 | 8.7 | 416 |
46 | 165.0 | 42.7 | 36.1 | 5.4 | 6.7 | 2.43 | 521.7 | 302.6 | 9.7 | 4.5 | 12.2 | 8.3 | 418 |
47 | 165.0 | 43.2 | 36.4 | 5.4 | 6.7 | 2.43 | 524.1 | 304.0 | 9.3 | 4.1 | 11.9 | 8.0 | 419 |
48 | 165.0 | 44.6 | 37.8 | 5.5 | 6.8 | 2.42 | 532.9 | 309.1 | 7.7 | 2.7 | 10.9 | 6.8 | 425 |
49 | 165.0 | 44.9 | 38.1 | 5.5 | 6.9 | 2.42 | 534.8 | 310.2 | 7.4 | 2.3 | 10.7 | 6.5 | 426 |
50 | 165.0 | 45.6 | 38.7 | 5.6 | 6.9 | 2.42 | 538.7 | 312.4 | 6.7 | 1.7 | 10.3 | 6.0 | 429 |
51 | 165.0 | 47.3 | 40.2 | 5.7 | 7.1 | 2.41 | 549.7 | 318.9 | 4.6 | -0.1 | 9.0 | 4.4 | 436 |
52 | 165.0 | 47.8 | 40.7 | 5.7 | 7.2 | 2.40 | 552.9 | 320.7 | 3.9 | -0.7 | 8.6 | 3.9 | 438 |
53 | 165.0 | 48.9 | 41.6 | 5.7 | 7.3 | 2.39 | 558.6 | 324.0 | 2.7 | -1.8 | 7.9 | 3.1 | 442 |
54 | 165.0 | 49.5 | 42.2 | 5.8 | 7.3 | 2.39 | 561.6 | 325.7 | 2.1 | -2.4 | 7.5 | 2.5 | 444 |
55 | 165.0 | 49.7 | 42.4 | 5.8 | 7.3 | 2.38 | 562.8 | 326.4 | 1.8 | -2.7 | 7.4 | 2.3 | 445 |
56 | 165.0 | 51.5 | 44.0 | 5.9 | 7.5 | 2.38 | 572.2 | 331.9 | -0.3 | -4.6 | 6.1 | 0.8 | 451 |
57 | 165.0 | 51.6 | 44.1 | 5.9 | 7.5 | 2.38 | 572.9 | 332.3 | -0.5 | -4.7 | 6.1 | 0.7 | 452 |
58 | 165.0 | 52.0 | 44.5 | 5.9 | 7.5 | 2.37 | 575.0 | 333.5 | -1.0 | -5.1 | 5.7 | 0.3 | 453 |
59 | 165.0 | 53.4 | 45.7 | 6.0 | 7.7 | 2.36 | 581.7 | 337.4 | -2.7 | -6.5 | 4.7 | -0.9 | 458 |
60 | 165.0 | 55.1 | 47.3 | 6.1 | 7.8 | 2.35 | 590.5 | 342.5 | -4.9 | -8.4 | 3.4 | -2.5 | 464 |
61 | 160.0 | 63.7 | 55.2 | 6.5 | 8.5 | 2.33 | 633.7 | 367.5 | -16.1 | -18.0 | -3.1 | -10.5 | 494 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 1.5MTPA HL ONLY WITH AGGLOMERATION SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 11 Optimisation Results - Based on 2.0Mtpa HL, No Agglomeration
The following table and figure display the optimisation results based on the 2.0Mtpa HL scenario, assuming contract mining, agglomeration is not required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 2.0MTPA HL ONLY, NO AGGLOMERATION SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | | | $M | | [$/oz] |
1 | 250.0 | 5.1 | 3.1 | 1.5 | 2.0 | 2.66 | 171.7 | 99.6 | 28.6 | 26.0 | 26.0 | 26.0 | 163 |
2 | 250.0 | 5.8 | 3.6 | 1.6 | 2.2 | 2.64 | 185.9 | 107.8 | 30.4 | 27.6 | 27.6 | 27.6 | 168 |
3 | 245.0 | 6.2 | 3.9 | 1.7 | 2.3 | 2.65 | 193.7 | 112.3 | 31.3 | 28.4 | 28.4 | 28.4 | 172 |
4 | 245.0 | 6.6 | 4.2 | 1.8 | 2.4 | 2.62 | 201.8 | 117.0 | 32.2 | 29.1 | 29.2 | 29.2 | 175 |
5 | 245.0 | 6.8 | 4.4 | 1.8 | 2.4 | 2.62 | 205.2 | 119.0 | 32.6 | 29.4 | 29.5 | 29.5 | 177 |
6 | 245.0 | 7.5 | 4.9 | 1.9 | 2.6 | 2.57 | 217.4 | 126.1 | 33.8 | 30.4 | 30.5 | 30.5 | 182 |
7 | 245.0 | 8.0 | 5.3 | 1.9 | 2.7 | 2.55 | 224.5 | 130.2 | 34.4 | 30.9 | 31.1 | 31.0 | 186 |
8 | 245.0 | 8.4 | 5.6 | 2.0 | 2.8 | 2.54 | 230.6 | 133.7 | 34.9 | 31.3 | 31.5 | 31.4 | 189 |
9 | 240.0 | 9.0 | 6.0 | 2.0 | 2.9 | 2.52 | 238.5 | 138.3 | 35.6 | 31.7 | 32.0 | 31.9 | 193 |
10 | 240.0 | 9.4 | 6.3 | 2.1 | 3.1 | 2.48 | 245.3 | 142.3 | 36.0 | 32.0 | 32.4 | 32.2 | 197 |
11 | 235.0 | 10.1 | 6.9 | 2.2 | 3.2 | 2.48 | 255.1 | 148.0 | 36.7 | 32.4 | 32.9 | 32.7 | 202 |
12 | 235.0 | 10.7 | 7.4 | 2.2 | 3.3 | 2.46 | 262.1 | 152.0 | 37.1 | 32.6 | 33.3 | 32.9 | 206 |
13 | 235.0 | 11.4 | 7.9 | 2.3 | 3.4 | 2.45 | 270.2 | 156.7 | 37.6 | 32.9 | 33.6 | 33.2 | 210 |
14 | 235.0 | 11.6 | 8.1 | 2.3 | 3.5 | 2.44 | 273.0 | 158.4 | 37.7 | 32.9 | 33.7 | 33.3 | 212 |
15 | 235.0 | 12.3 | 8.7 | 2.4 | 3.6 | 2.41 | 280.8 | 162.9 | 38.0 | 33.0 | 33.9 | 33.5 | 217 |
16 | 235.0 | 12.7 | 9.0 | 2.4 | 3.7 | 2.39 | 285.9 | 165.8 | 38.2 | 33.0 | 34.0 | 33.5 | 220 |
17 | 235.0 | 13.7 | 9.8 | 2.5 | 3.9 | 2.37 | 296.9 | 172.2 | 38.5 | 33.0 | 34.2 | 33.6 | 226 |
18 | 235.0 | 13.9 | 9.9 | 2.5 | 3.9 | 2.36 | 298.6 | 173.2 | 38.5 | 33.0 | 34.2 | 33.6 | 227 |
19 | 235.0 | 14.5 | 10.5 | 2.6 | 4.0 | 2.35 | 304.9 | 176.9 | 38.6 | 33.0 | 34.3 | 33.6 | 232 |
20 | 230.0 | 15.5 | 11.4 | 2.7 | 4.2 | 2.34 | 314.8 | 182.6 | 38.7 | 33.0 | 34.3 | 33.7 | 238 |
21 | 230.0 | 15.8 | 11.5 | 2.7 | 4.2 | 2.33 | 317.2 | 184.0 | 38.7 | 32.9 | 34.4 | 33.6 | 240 |
22 | 215.0 | 18.3 | 13.8 | 3.1 | 4.5 | 2.36 | 340.8 | 197.6 | 38.7 | 32.6 | 34.3 | 33.4 | 254 |
23 | 210.0 | 19.0 | 14.4 | 3.1 | 4.6 | 2.35 | 347.6 | 201.6 | 38.6 | 32.4 | 34.2 | 33.3 | 259 |
24 | 210.0 | 19.9 | 15.1 | 3.2 | 4.8 | 2.32 | 356.7 | 206.9 | 38.5 | 32.2 | 34.1 | 33.2 | 264 |
25 | 200.0 | 23.7 | 18.5 | 3.5 | 5.3 | 2.32 | 392.5 | 227.6 | 37.7 | 30.9 | 33.5 | 32.2 | 285 |
26 | 200.0 | 24.5 | 19.1 | 3.5 | 5.4 | 2.30 | 399.3 | 231.6 | 37.5 | 30.5 | 33.3 | 31.9 | 288 |
27 | 200.0 | 24.8 | 19.3 | 3.6 | 5.5 | 2.29 | 401.5 | 232.9 | 37.4 | 30.4 | 33.3 | 31.8 | 290 |
28 | 195.0 | 26.4 | 20.7 | 3.7 | 5.7 | 2.28 | 415.3 | 240.9 | 36.8 | 29.6 | 32.9 | 31.2 | 297 |
29 | 195.0 | 26.8 | 21.1 | 3.7 | 5.7 | 2.27 | 418.6 | 242.8 | 36.7 | 29.4 | 32.7 | 31.0 | 299 |
30 | 195.0 | 27.5 | 21.7 | 3.7 | 5.8 | 2.27 | 423.8 | 245.8 | 36.4 | 29.0 | 32.5 | 30.8 | 302 |
31 | 185.0 | 29.6 | 23.5 | 3.9 | 6.0 | 2.27 | 440.1 | 255.3 | 35.4 | 27.8 | 31.8 | 29.8 | 311 |
32 | 185.0 | 30.2 | 24.0 | 3.9 | 6.1 | 2.25 | 444.7 | 257.9 | 35.1 | 27.5 | 31.6 | 29.5 | 314 |
33 | 185.0 | 30.5 | 24.4 | 3.9 | 6.2 | 2.25 | 447.3 | 259.4 | 34.9 | 27.3 | 31.4 | 29.3 | 316 |
34 | 175.0 | 33.8 | 27.4 | 4.3 | 6.4 | 2.28 | 471.2 | 273.3 | 33.0 | 25.4 | 30.1 | 27.7 | 329 |
35 | 175.0 | 34.2 | 27.7 | 4.3 | 6.5 | 2.27 | 474.2 | 275.0 | 32.8 | 25.1 | 29.9 | 27.5 | 331 |
36 | 175.0 | 35.4 | 28.8 | 4.3 | 6.6 | 2.26 | 482.9 | 280.1 | 32.0 | 24.3 | 29.3 | 26.8 | 336 |
37 | 175.0 | 36.8 | 30.0 | 4.4 | 6.8 | 2.25 | 492.1 | 285.4 | 31.1 | 23.3 | 28.7 | 26.0 | 341 |
38 | 175.0 | 37.8 | 30.9 | 4.5 | 6.9 | 2.25 | 498.7 | 289.2 | 30.4 | 22.6 | 28.2 | 25.4 | 345 |
39 | 170.0 | 39.4 | 32.3 | 4.6 | 7.1 | 2.24 | 510.2 | 295.9 | 29.1 | 21.4 | 27.3 | 24.3 | 352 |
40 | 165.0 | 40.1 | 33.0 | 4.6 | 7.1 | 2.24 | 515.3 | 298.9 | 28.5 | 20.8 | 26.9 | 23.8 | 355 |
41 | 165.0 | 43.2 | 35.9 | 4.9 | 7.3 | 2.27 | 535.3 | 310.5 | 26.0 | 18.4 | 25.2 | 21.8 | 366 |
42 | 165.0 | 43.9 | 36.5 | 4.9 | 7.4 | 2.26 | 539.2 | 312.8 | 25.5 | 17.8 | 24.9 | 21.3 | 368 |
43 | 165.0 | 44.0 | 36.6 | 4.9 | 7.4 | 2.25 | 540.0 | 313.2 | 25.4 | 17.7 | 24.8 | 21.2 | 369 |
44 | 165.0 | 46.9 | 39.1 | 5.1 | 7.8 | 2.24 | 558.5 | 323.9 | 22.8 | 15.2 | 23.1 | 19.1 | 380 |
45 | 165.0 | 48.0 | 40.1 | 5.1 | 7.8 | 2.24 | 565.1 | 327.8 | 21.8 | 14.3 | 22.4 | 18.3 | 384 |
46 | 165.0 | 48.9 | 40.9 | 5.2 | 8.0 | 2.23 | 570.5 | 330.9 | 21.0 | 13.4 | 21.9 | 17.7 | 387 |
47 | 165.0 | 49.7 | 41.7 | 5.2 | 8.1 | 2.22 | 575.1 | 333.6 | 20.2 | 12.7 | 21.4 | 17.1 | 389 |
48 | 165.0 | 50.3 | 42.2 | 5.2 | 8.1 | 2.22 | 578.7 | 335.6 | 19.6 | 12.2 | 21.0 | 16.6 | 392 |
49 | 165.0 | 50.6 | 42.5 | 5.2 | 8.1 | 2.22 | 580.1 | 336.5 | 19.4 | 12.0 | 20.8 | 16.4 | 392 |
50 | 165.0 | 51.0 | 42.8 | 5.2 | 8.2 | 2.21 | 582.2 | 337.7 | 19.0 | 11.6 | 20.6 | 16.1 | 394 |
51 | 165.0 | 52.2 | 43.9 | 5.3 | 8.3 | 2.20 | 588.9 | 341.5 | 17.8 | 10.5 | 19.8 | 15.1 | 398 |
52 | 165.0 | 53.5 | 45.1 | 5.4 | 8.4 | 2.20 | 595.8 | 345.6 | 16.4 | 9.3 | 18.8 | 14.1 | 403 |
53 | 165.0 | 54.3 | 45.8 | 5.4 | 8.5 | 2.20 | 599.8 | 347.9 | 15.6 | 8.5 | 18.3 | 13.4 | 405 |
54 | 165.0 | 55.3 | 46.7 | 5.4 | 8.6 | 2.19 | 604.8 | 350.8 | 14.6 | 7.6 | 17.7 | 12.6 | 409 |
55 | 165.0 | 58.5 | 49.6 | 5.6 | 8.9 | 2.17 | 622.0 | 360.8 | 10.9 | 4.3 | 15.3 | 9.8 | 420 |
56 | 165.0 | 63.8 | 54.5 | 5.9 | 9.3 | 2.16 | 648.6 | 376.2 | 5.2 | -1.2 | 11.8 | 5.3 | 436 |
57 | 155.0 | 65.8 | 56.3 | 5.9 | 9.5 | 2.16 | 659.5 | 382.5 | 2.8 | -3.2 | 10.3 | 3.5 | 443 |
58 | 155.0 | 65.9 | 56.4 | 5.9 | 9.5 | 2.16 | 660.0 | 382.8 | 2.7 | -3.3 | 10.2 | 3.5 | 443 |
59 | 155.0 | 66.2 | 56.6 | 5.9 | 9.5 | 2.16 | 661.7 | 383.8 | 2.3 | -3.7 | 10.0 | 3.2 | 444 |
60 | 150.0 | 67.0 | 57.4 | 6.0 | 9.6 | 2.15 | 665.7 | 386.1 | 1.3 | -4.5 | 9.4 | 2.5 | 447 |
61 | 150.0 | 69.2 | 59.4 | 6.1 | 9.8 | 2.15 | 676.9 | 392.6 | -1.5 | -6.9 | 7.8 | 0.4 | 454 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 2.0MTPA HL ONLY, NO AGGLOMERATION SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 12 Optimisation Results - Based on 2.0Mtpa HL, With Agglomeration
The following table and figure display the optimisation results based on the 2.0Mtpa HL scenario, assuming contract mining, agglomeration is required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 2.0MTPA HL ONLY WITH AGGLOMERATION SCENARIO |
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | Mill Feed | Au Metal | Operating Cashflow | Cashcost |
| | Material | | Ratio | Tonnes | Grade | Insitu | Recovered | Undisc. | Discounted @ 10% | |
| | | | | | | | | | Worst | Best | Avg. | |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | | | $M | | [$/oz] |
1 | 275.0 | 2.9 | 1.5 | 1.1 | 1.4 | 2.68 | 122.8 | 71.3 | 19.3 | 18.0 | 18.0 | 18.0 | 179 |
2 | 260.0 | 3.9 | 2.2 | 1.3 | 1.7 | 2.70 | 144.8 | 84.0 | 22.0 | 20.4 | 20.4 | 20.4 | 188 |
3 | 250.0 | 4.7 | 2.9 | 1.5 | 1.9 | 2.73 | 162.9 | 94.5 | 24.1 | 22.1 | 22.1 | 22.1 | 194 |
4 | 250.0 | 5.0 | 3.0 | 1.6 | 1.9 | 2.71 | 168.5 | 97.7 | 24.8 | 22.6 | 22.6 | 22.6 | 197 |
5 | 245.0 | 5.8 | 3.7 | 1.7 | 2.1 | 2.71 | 185.2 | 107.4 | 26.5 | 24.0 | 24.0 | 24.0 | 204 |
6 | 245.0 | 6.1 | 3.9 | 1.8 | 2.2 | 2.69 | 191.2 | 110.9 | 27.0 | 24.5 | 24.6 | 24.5 | 206 |
7 | 245.0 | 6.6 | 4.3 | 1.8 | 2.3 | 2.67 | 199.9 | 116.0 | 27.8 | 25.2 | 25.2 | 25.2 | 210 |
8 | 245.0 | 6.6 | 4.3 | 1.8 | 2.3 | 2.67 | 200.4 | 116.3 | 27.9 | 25.2 | 25.3 | 25.3 | 210 |
9 | 245.0 | 7.2 | 4.7 | 1.9 | 2.5 | 2.64 | 209.9 | 121.7 | 28.6 | 25.8 | 25.9 | 25.9 | 215 |
10 | 245.0 | 7.7 | 5.1 | 2.0 | 2.6 | 2.62 | 218.0 | 126.4 | 29.2 | 26.3 | 26.4 | 26.3 | 219 |
11 | 245.0 | 8.0 | 5.4 | 2.0 | 2.7 | 2.61 | 223.5 | 129.7 | 29.5 | 26.5 | 26.7 | 26.6 | 222 |
12 | 240.0 | 8.6 | 5.8 | 2.1 | 2.8 | 2.59 | 232.3 | 134.7 | 30.0 | 26.9 | 27.1 | 27.0 | 227 |
13 | 240.0 | 8.8 | 6.0 | 2.1 | 2.8 | 2.59 | 235.3 | 136.5 | 30.2 | 27.0 | 27.3 | 27.1 | 229 |
14 | 235.0 | 9.4 | 6.5 | 2.2 | 2.9 | 2.58 | 243.3 | 141.1 | 30.6 | 27.2 | 27.6 | 27.4 | 233 |
15 | 235.0 | 9.9 | 6.9 | 2.3 | 3.0 | 2.56 | 250.3 | 145.2 | 30.9 | 27.4 | 27.8 | 27.6 | 237 |
16 | 235.0 | 10.6 | 7.5 | 2.3 | 3.2 | 2.54 | 259.3 | 150.4 | 31.2 | 27.5 | 28.0 | 27.8 | 243 |
17 | 235.0 | 11.1 | 7.8 | 2.4 | 3.3 | 2.51 | 265.3 | 153.9 | 31.3 | 27.5 | 28.1 | 27.8 | 246 |
18 | 235.0 | 11.5 | 8.1 | 2.4 | 3.4 | 2.48 | 270.9 | 157.1 | 31.5 | 27.5 | 28.2 | 27.9 | 250 |
19 | 235.0 | 12.0 | 8.5 | 2.4 | 3.5 | 2.47 | 276.3 | 160.3 | 31.5 | 27.5 | 28.2 | 27.9 | 253 |
20 | 235.0 | 12.2 | 8.7 | 2.5 | 3.5 | 2.46 | 279.4 | 162.0 | 31.6 | 27.5 | 28.2 | 27.9 | 255 |
21 | 235.0 | 13.0 | 9.4 | 2.5 | 3.7 | 2.44 | 288.2 | 167.2 | 31.6 | 27.3 | 28.2 | 27.8 | 261 |
22 | 235.0 | 13.8 | 10.0 | 2.6 | 3.8 | 2.41 | 297.0 | 172.3 | 31.6 | 27.1 | 28.2 | 27.6 | 267 |
23 | 230.0 | 14.3 | 10.4 | 2.7 | 3.9 | 2.40 | 301.9 | 175.1 | 31.5 | 26.9 | 28.1 | 27.5 | 270 |
24 | 215.0 | 17.1 | 12.9 | 3.1 | 4.2 | 2.44 | 328.2 | 190.4 | 31.1 | 26.3 | 27.7 | 27.0 | 287 |
25 | 215.0 | 17.3 | 13.0 | 3.1 | 4.2 | 2.43 | 329.8 | 191.3 | 31.0 | 26.2 | 27.6 | 26.9 | 288 |
26 | 210.0 | 18.1 | 13.8 | 3.2 | 4.4 | 2.41 | 338.3 | 196.2 | 30.8 | 25.9 | 27.4 | 26.7 | 293 |
27 | 210.0 | 18.4 | 14.0 | 3.2 | 4.4 | 2.40 | 341.1 | 197.9 | 30.7 | 25.8 | 27.3 | 26.5 | 295 |
28 | 210.0 | 18.8 | 14.3 | 3.2 | 4.5 | 2.39 | 345.0 | 200.1 | 30.5 | 25.6 | 27.2 | 26.4 | 298 |
29 | 200.0 | 23.2 | 18.1 | 3.6 | 5.1 | 2.37 | 386.4 | 224.1 | 28.6 | 23.4 | 25.6 | 24.5 | 323 |
30 | 200.0 | 24.1 | 18.9 | 3.6 | 5.2 | 2.35 | 394.2 | 228.6 | 28.1 | 22.9 | 25.3 | 24.1 | 327 |
31 | 200.0 | 24.4 | 19.1 | 3.6 | 5.3 | 2.35 | 396.7 | 230.1 | 28.0 | 22.7 | 25.2 | 23.9 | 328 |
32 | 195.0 | 25.4 | 20.0 | 3.7 | 5.4 | 2.34 | 405.7 | 235.3 | 27.4 | 22.0 | 24.7 | 23.4 | 334 |
33 | 195.0 | 25.9 | 20.4 | 3.7 | 5.5 | 2.32 | 410.0 | 237.8 | 27.1 | 21.7 | 24.5 | 23.1 | 336 |
34 | 185.0 | 28.6 | 22.8 | 3.9 | 5.8 | 2.32 | 430.9 | 249.9 | 25.4 | 19.8 | 23.2 | 21.5 | 349 |
35 | 185.0 | 28.8 | 23.0 | 4.0 | 5.8 | 2.32 | 432.6 | 250.9 | 25.2 | 19.7 | 23.1 | 21.4 | 349 |
36 | 175.0 | 31.5 | 25.6 | 4.3 | 6.0 | 2.35 | 453.2 | 262.8 | 23.4 | 17.8 | 21.7 | 19.8 | 361 |
37 | 175.0 | 32.2 | 26.1 | 4.3 | 6.1 | 2.34 | 458.3 | 265.8 | 22.9 | 17.3 | 21.3 | 19.3 | 364 |
38 | 175.0 | 33.1 | 26.9 | 4.3 | 6.2 | 2.34 | 464.7 | 269.5 | 22.2 | 16.7 | 20.8 | 18.8 | 368 |
39 | 175.0 | 34.4 | 28.0 | 4.4 | 6.4 | 2.32 | 473.8 | 274.8 | 21.2 | 15.6 | 20.1 | 17.9 | 373 |
40 | 175.0 | 35.1 | 28.7 | 4.5 | 6.4 | 2.32 | 478.9 | 277.8 | 20.6 | 15.1 | 19.6 | 17.4 | 376 |
41 | 175.0 | 35.9 | 29.4 | 4.5 | 6.5 | 2.32 | 484.3 | 280.9 | 19.9 | 14.4 | 19.2 | 16.8 | 379 |
42 | 170.0 | 36.9 | 30.3 | 4.6 | 6.6 | 2.31 | 491.6 | 285.1 | 18.9 | 13.5 | 18.5 | 16.0 | 384 |
43 | 165.0 | 40.3 | 33.3 | 4.8 | 6.9 | 2.31 | 514.6 | 298.4 | 15.7 | 10.6 | 16.2 | 13.4 | 397 |
44 | 165.0 | 42.6 | 35.4 | 5.0 | 7.1 | 2.31 | 529.3 | 307.0 | 13.6 | 8.6 | 14.8 | 11.7 | 406 |
45 | 165.0 | 42.8 | 35.6 | 5.0 | 7.2 | 2.30 | 531.0 | 308.0 | 13.4 | 8.3 | 14.6 | 11.4 | 407 |
46 | 165.0 | 43.6 | 36.3 | 5.0 | 7.3 | 2.30 | 535.7 | 310.7 | 12.6 | 7.6 | 14.1 | 10.8 | 409 |
47 | 165.0 | 44.2 | 36.9 | 5.1 | 7.3 | 2.30 | 539.6 | 313.0 | 12.0 | 7.0 | 13.7 | 10.3 | 412 |
48 | 165.0 | 45.0 | 37.6 | 5.1 | 7.4 | 2.30 | 544.3 | 315.7 | 11.2 | 6.3 | 13.1 | 9.7 | 415 |
49 | 165.0 | 47.3 | 39.7 | 5.2 | 7.6 | 2.28 | 559.6 | 324.6 | 8.5 | 3.9 | 11.4 | 7.6 | 424 |
50 | 165.0 | 47.5 | 39.8 | 5.2 | 7.7 | 2.27 | 560.7 | 325.2 | 8.3 | 3.7 | 11.3 | 7.5 | 424 |
51 | 165.0 | 48.8 | 41.0 | 5.3 | 7.8 | 2.27 | 568.3 | 329.6 | 6.9 | 2.4 | 10.3 | 6.4 | 429 |
52 | 165.0 | 49.5 | 41.7 | 5.3 | 7.9 | 2.26 | 572.1 | 331.8 | 6.2 | 1.7 | 9.9 | 5.8 | 432 |
53 | 165.0 | 49.9 | 42.0 | 5.3 | 7.9 | 2.26 | 574.2 | 333.0 | 5.7 | 1.3 | 9.6 | 5.4 | 433 |
54 | 165.0 | 50.7 | 42.7 | 5.3 | 8.0 | 2.25 | 579.1 | 335.9 | 4.7 | 0.4 | 9.0 | 4.7 | 436 |
55 | 165.0 | 51.6 | 43.5 | 5.4 | 8.1 | 2.25 | 583.9 | 338.7 | 3.7 | -0.5 | 8.3 | 3.9 | 439 |
56 | 165.0 | 51.8 | 43.7 | 5.4 | 8.1 | 2.25 | 585.1 | 339.4 | 3.4 | -0.7 | 8.1 | 3.7 | 440 |
57 | 165.0 | 52.8 | 44.6 | 5.5 | 8.2 | 2.24 | 590.1 | 342.3 | 2.3 | -1.7 | 7.3 | 2.8 | 443 |
58 | 165.0 | 54.2 | 45.9 | 5.5 | 8.3 | 2.23 | 597.3 | 346.4 | 0.6 | -3.2 | 6.2 | 1.5 | 448 |
59 | 165.0 | 55.2 | 46.8 | 5.6 | 8.4 | 2.23 | 602.5 | 349.5 | -0.6 | -4.3 | 5.4 | 0.6 | 452 |
60 | 160.0 | 64.1 | 55.0 | 6.0 | 9.2 | 2.20 | 649.0 | 376.4 | -12.0 | -14.2 | -1.8 | -8.0 | 482 |
61 | 160.0 | 64.4 | 55.2 | 6.0 | 9.2 | 2.20 | 650.2 | 377.1 | -12.3 | -14.5 | -2.0 | -8.3 | 483 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 2.0MTPA HL ONLY WITH AGGLOMERATION SCENARIO
Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 13 Optimisation Results - Based on Combined 1Mtpa CIL and 1.0Mtpa HL, No Agglomeration
The following table and figure display the optimisation results based on the combined 1Mtpa CIL and 1.0Mtpa HL scenario, assuming contract mining, agglomeration is not required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 1.0MTPA CIL and 1.0MTPA HL COMBINED SCENARIO |
G&A and Mine Supervision carried by CIL, HL without agglomeration, Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | CIL Mill Feed | Heap Leach Feed | Total Metal | Operating Cashflow |
| | Material | | Ratio | Tonnes | Grade | Au Metal | Tonnes | Grade | Au Metal | Insitu | Recovered | Undisc. | Discounted @ 1 |
| | | | | | | Insitu | Recovered | | | Insitu | Recovered | | | | Worst | Best |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | [Mt] | [g/t] | [koz] | | | $M |
1 | 250.0 | 4.7 | 2.9 | 1.5 | 1.6 | 3.05 | 153.6 | 145.9 | 0.3 | 1.0 | 9.8 | 5.7 | 163.4 | 151.6 | 37.5 | 33.3 | 33.3 |
2 | 245.0 | 5.5 | 3.5 | 1.7 | 1.7 | 3.06 | 168.0 | 159.6 | 0.3 | 1.0 | 11.2 | 6.5 | 179.2 | 166.1 | 40.4 | 35.5 | 35.5 |
3 | 245.0 | 6.1 | 3.9 | 1.8 | 1.8 | 3.05 | 178.0 | 169.1 | 0.4 | 1.0 | 11.9 | 6.9 | 189.9 | 176.0 | 42.3 | 36.8 | 36.9 |
4 | 245.0 | 6.6 | 4.3 | 1.9 | 1.9 | 3.04 | 186.7 | 177.4 | 0.4 | 1.0 | 12.8 | 7.4 | 199.5 | 184.8 | 43.8 | 37.9 | 38.1 |
5 | 240.0 | 7.0 | 4.6 | 1.9 | 2.0 | 3.03 | 192.7 | 183.1 | 0.4 | 1.0 | 13.4 | 7.8 | 206.1 | 190.8 | 44.8 | 38.6 | 38.8 |
6 | 240.0 | 7.6 | 5.1 | 2.0 | 2.1 | 3.02 | 201.0 | 191.0 | 0.5 | 1.0 | 14.3 | 8.3 | 215.3 | 199.3 | 46.2 | 39.6 | 39.9 |
7 | 235.0 | 8.6 | 5.8 | 2.2 | 2.2 | 3.01 | 214.1 | 203.4 | 0.5 | 1.0 | 15.7 | 9.1 | 229.8 | 212.5 | 48.1 | 41.0 | 41.4 |
8 | 235.0 | 9.1 | 6.2 | 2.2 | 2.3 | 3.00 | 220.1 | 209.1 | 0.5 | 1.0 | 16.8 | 9.8 | 237.0 | 218.9 | 49.0 | 41.6 | 42.1 |
9 | 235.0 | 9.5 | 6.6 | 2.3 | 2.3 | 2.99 | 225.7 | 214.4 | 0.6 | 1.0 | 17.9 | 10.4 | 243.6 | 224.8 | 49.8 | 42.2 | 42.7 |
10 | 235.0 | 9.9 | 6.9 | 2.3 | 2.4 | 2.99 | 229.7 | 218.2 | 0.6 | 1.0 | 18.9 | 11.0 | 248.6 | 229.2 | 50.3 | 42.5 | 43.2 |
11 | 235.0 | 10.7 | 7.5 | 2.4 | 2.5 | 2.98 | 237.7 | 225.8 | 0.7 | 1.0 | 21.2 | 12.3 | 258.8 | 238.1 | 51.3 | 43.1 | 43.9 |
12 | 235.0 | 11.2 | 7.9 | 2.4 | 2.6 | 2.96 | 242.6 | 230.5 | 0.7 | 1.0 | 22.8 | 13.2 | 265.4 | 243.7 | 51.9 | 43.4 | 44.3 |
13 | 215.0 | 14.3 | 10.7 | 3.0 | 2.8 | 3.01 | 271.1 | 257.6 | 0.8 | 1.0 | 25.7 | 14.9 | 296.8 | 272.5 | 54.4 | 44.7 | 46.1 |
14 | 215.0 | 15.2 | 11.4 | 3.0 | 2.9 | 2.99 | 278.6 | 264.7 | 0.9 | 1.0 | 29.2 | 16.9 | 307.8 | 281.6 | 55.1 | 45.0 | 46.6 |
15 | 215.0 | 16.1 | 12.2 | 3.1 | 3.0 | 2.99 | 286.1 | 271.8 | 1.0 | 1.0 | 30.4 | 17.7 | 316.6 | 289.5 | 55.7 | 45.1 | 46.9 |
16 | 215.0 | 16.4 | 12.3 | 3.1 | 3.0 | 2.98 | 287.8 | 273.5 | 1.0 | 1.0 | 31.7 | 18.4 | 319.5 | 291.8 | 55.8 | 45.1 | 47.0 |
17 | 210.0 | 17.0 | 12.9 | 3.1 | 3.0 | 2.98 | 292.4 | 277.8 | 1.0 | 1.0 | 33.1 | 19.2 | 325.6 | 297.0 | 56.0 | 45.2 | 47.2 |
18 | 200.0 | 20.1 | 15.7 | 3.5 | 3.3 | 3.02 | 316.3 | 299.9 | 1.2 | 1.0 | 37.8 | 22.0 | 354.1 | 321.8 | 57.0 | 45.5 | 47.9 |
19 | 200.0 | 20.5 | 16.0 | 3.5 | 3.3 | 3.01 | 318.5 | 302.0 | 1.2 | 1.0 | 39.1 | 22.7 | 357.6 | 324.7 | 57.1 | 45.4 | 48.0 |
20 | 200.0 | 20.9 | 16.3 | 3.5 | 3.3 | 3.00 | 320.9 | 304.2 | 1.3 | 1.0 | 40.7 | 23.6 | 361.6 | 327.8 | 57.2 | 45.4 | 48.0 |
21 | 200.0 | 21.8 | 17.0 | 3.6 | 3.4 | 2.99 | 327.3 | 310.3 | 1.3 | 1.0 | 43.2 | 25.1 | 370.5 | 335.4 | 57.2 | 45.2 | 48.0 |
22 | 200.0 | 23.3 | 18.3 | 3.7 | 3.5 | 2.97 | 336.0 | 318.6 | 1.5 | 1.0 | 47.0 | 27.3 | 383.1 | 345.9 | 57.1 | 44.7 | 47.9 |
23 | 180.0 | 29.8 | 24.1 | 4.2 | 3.9 | 3.02 | 377.2 | 355.7 | 1.8 | 1.1 | 61.3 | 35.5 | 438.4 | 391.2 | 56.3 | 42.7 | 47.3 |
24 | 175.0 | 31.6 | 25.7 | 4.4 | 4.0 | 3.03 | 388.0 | 365.7 | 1.9 | 1.1 | 63.3 | 36.7 | 451.4 | 402.4 | 56.0 | 42.0 | 47.1 |
25 | 175.0 | 31.9 | 26.0 | 4.4 | 4.0 | 3.02 | 390.1 | 367.7 | 1.9 | 1.1 | 64.1 | 37.2 | 454.2 | 404.9 | 55.9 | 41.8 | 47.1 |
26 | 175.0 | 32.8 | 26.8 | 4.4 | 4.1 | 3.02 | 395.0 | 372.3 | 1.9 | 1.1 | 65.8 | 38.1 | 460.8 | 410.5 | 55.6 | 41.5 | 46.9 |
27 | 175.0 | 33.8 | 27.6 | 4.5 | 4.1 | 3.01 | 400.0 | 377.0 | 2.1 | 1.0 | 69.1 | 40.1 | 469.1 | 417.1 | 55.2 | 40.9 | 46.6 |
28 | 170.0 | 37.4 | 30.9 | 4.8 | 4.3 | 3.04 | 420.7 | 395.8 | 2.1 | 1.0 | 71.1 | 41.2 | 491.7 | 437.0 | 53.7 | 39.1 | 45.6 |
29 | 170.0 | 38.5 | 32.0 | 4.9 | 4.4 | 3.03 | 426.2 | 401.1 | 2.2 | 1.0 | 73.8 | 42.8 | 500.0 | 443.9 | 53.2 | 38.3 | 45.3 |
30 | 170.0 | 39.0 | 32.3 | 4.9 | 4.4 | 3.02 | 428.1 | 402.8 | 2.3 | 1.0 | 75.7 | 43.9 | 503.8 | 446.7 | 52.9 | 38.0 | 45.1 |
31 | 170.0 | 41.3 | 34.4 | 4.9 | 4.5 | 3.00 | 438.4 | 412.4 | 2.4 | 1.0 | 81.0 | 47.0 | 519.4 | 459.4 | 51.5 | 36.3 | 44.2 |
32 | 170.0 | 42.5 | 35.5 | 5.0 | 4.6 | 3.01 | 444.8 | 418.2 | 2.5 | 1.0 | 82.2 | 47.7 | 527.0 | 465.9 | 50.7 | 35.5 | 43.7 |
33 | 165.0 | 43.9 | 36.7 | 5.1 | 4.7 | 3.01 | 451.3 | 423.9 | 2.5 | 1.0 | 85.7 | 49.7 | 537.0 | 473.6 | 49.8 | 34.4 | 43.1 |
34 | 165.0 | 44.4 | 37.2 | 5.1 | 4.7 | 3.00 | 454.1 | 426.4 | 2.6 | 1.0 | 86.6 | 50.2 | 540.7 | 476.6 | 49.3 | 34.0 | 42.9 |
35 | 165.0 | 46.1 | 38.6 | 5.2 | 4.8 | 3.00 | 460.3 | 432.0 | 2.7 | 1.1 | 91.0 | 52.8 | 551.3 | 484.8 | 48.1 | 32.7 | 42.1 |
36 | 165.0 | 46.9 | 39.3 | 5.2 | 4.8 | 3.00 | 462.9 | 434.5 | 2.7 | 1.1 | 93.0 | 53.9 | 555.9 | 488.4 | 47.5 | 32.1 | 41.7 |
37 | 165.0 | 48.5 | 40.9 | 5.3 | 4.9 | 3.00 | 470.1 | 441.0 | 2.8 | 1.1 | 95.1 | 55.1 | 565.1 | 496.1 | 46.1 | 30.7 | 40.9 |
38 | 165.0 | 49.0 | 41.2 | 5.3 | 4.9 | 2.99 | 471.5 | 442.3 | 2.8 | 1.1 | 96.3 | 55.8 | 567.8 | 498.1 | 45.7 | 30.2 | 40.7 |
39 | 165.0 | 52.4 | 44.2 | 5.4 | 5.1 | 2.98 | 483.4 | 453.3 | 3.1 | 1.1 | 104.8 | 60.8 | 588.2 | 514.0 | 42.4 | 27.2 | 38.7 |
40 | 165.0 | 53.3 | 45.0 | 5.5 | 5.1 | 2.97 | 486.6 | 456.3 | 3.1 | 1.1 | 106.7 | 61.9 | 593.3 | 518.2 | 41.6 | 26.4 | 38.2 |
41 | 165.0 | 54.7 | 46.3 | 5.5 | 5.2 | 2.96 | 491.7 | 461.1 | 3.2 | 1.1 | 108.8 | 63.1 | 600.5 | 524.2 | 40.2 | 25.1 | 37.4 |
42 | 165.0 | 58.6 | 49.9 | 5.7 | 5.3 | 2.94 | 505.8 | 474.1 | 3.4 | 1.1 | 114.6 | 66.5 | 620.4 | 540.6 | 36.4 | 21.3 | 35.1 |
43 | 165.0 | 60.1 | 51.3 | 5.8 | 5.4 | 2.94 | 511.6 | 479.3 | 3.5 | 1.1 | 116.9 | 67.8 | 628.5 | 547.1 | 34.8 | 19.8 | 34.2 |
44 | 165.0 | 62.7 | 53.6 | 5.9 | 5.5 | 2.92 | 520.4 | 487.4 | 3.6 | 1.1 | 121.9 | 70.7 | 642.3 | 558.1 | 31.9 | 17.1 | 32.6 |
45 | 165.0 | 63.4 | 54.2 | 5.9 | 5.6 | 2.92 | 523.0 | 489.8 | 3.6 | 1.1 | 122.7 | 71.1 | 645.7 | 561.0 | 31.1 | 16.4 | 32.2 |
46 | 160.0 | 65.4 | 56.0 | 6.0 | 5.6 | 2.92 | 529.5 | 495.4 | 3.7 | 1.1 | 127.1 | 73.7 | 656.5 | 569.1 | 28.7 | 14.4 | 30.9 |
47 | 160.0 | 65.5 | 56.2 | 6.0 | 5.6 | 2.92 | 529.6 | 495.6 | 3.8 | 1.1 | 127.5 | 73.9 | 657.1 | 569.5 | 28.6 | 14.2 | 30.9 |
48 | 160.0 | 67.5 | 58.0 | 6.1 | 5.7 | 2.92 | 537.0 | 501.9 | 3.8 | 1.1 | 129.8 | 75.3 | 666.7 | 577.2 | 26.3 | 12.2 | 29.6 |
49 | 160.0 | 68.9 | 59.2 | 6.1 | 5.8 | 2.92 | 540.8 | 505.2 | 3.9 | 1.1 | 133.0 | 77.1 | 673.7 | 582.4 | 24.6 | 10.7 | 28.7 |
50 | 150.0 | 70.4 | 60.6 | 6.2 | 5.8 | 2.92 | 546.4 | 510.1 | 3.9 | 1.1 | 134.7 | 78.2 | 681.1 | 588.3 | 22.7 | 9.1 | 27.6 |
51 | 150.0 | 72.4 | 62.4 | 6.3 | 5.9 | 2.91 | 551.3 | 514.5 | 4.1 | 1.1 | 139.8 | 81.1 | 691.1 | 595.6 | 20.1 | 6.9 | 26.2 |
52 | 150.0 | 74.8 | 64.7 | 6.4 | 6.0 | 2.91 | 558.2 | 520.8 | 4.2 | 1.1 | 145.0 | 84.1 | 703.1 | 604.9 | 16.8 | 4.2 | 24.4 |
53 | 150.0 | 75.4 | 65.2 | 6.4 | 6.0 | 2.91 | 559.6 | 522.1 | 4.2 | 1.1 | 146.1 | 84.8 | 705.7 | 606.8 | 16.0 | 3.6 | 24.0 |
54 | 150.0 | 75.8 | 65.5 | 6.4 | 6.0 | 2.91 | 560.9 | 523.2 | 4.2 | 1.1 | 146.6 | 85.0 | 707.6 | 608.2 | 15.5 | 3.1 | 23.7 |
55 | 150.0 | 76.3 | 66.0 | 6.4 | 6.0 | 2.91 | 561.1 | 523.3 | 4.3 | 1.1 | 148.7 | 86.3 | 709.8 | 609.6 | 14.9 | 2.6 | 23.4 |
56 | 150.0 | 76.5 | 66.2 | 6.4 | 6.0 | 2.91 | 562.0 | 524.1 | 4.3 | 1.1 | 149.1 | 86.5 | 711.1 | 610.6 | 14.5 | 2.3 | 23.2 |
57 | 150.0 | 77.2 | 66.8 | 6.5 | 6.0 | 2.91 | 563.3 | 525.3 | 4.3 | 1.1 | 150.5 | 87.3 | 713.8 | 612.6 | 13.6 | 1.5 | 22.7 |
58 | 150.0 | 77.8 | 67.4 | 6.5 | 6.0 | 2.91 | 564.5 | 526.4 | 4.4 | 1.1 | 152.2 | 88.3 | 716.7 | 614.6 | 12.7 | 0.8 | 22.3 |
59 | 150.0 | 80.5 | 69.9 | 6.6 | 6.1 | 2.90 | 569.7 | 531.2 | 4.5 | 1.1 | 158.0 | 91.6 | 727.7 | 622.9 | 8.9 | -2.3 | 20.3 |
60 | 150.0 | 86.1 | 75.1 | 6.8 | 6.3 | 2.90 | 583.1 | 543.3 | 4.8 | 1.1 | 168.4 | 97.6 | 751.4 | 640.9 | 0.7 | -8.8 | 16.3 |
61 | 150.0 | 86.9 | 75.8 | 6.8 | 6.3 | 2.89 | 585.4 | 545.4 | 4.8 | 1.1 | 169.1 | 98.1 | 754.5 | 643.5 | -0.5 | -9.8 | 15.7 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 1.0MTPA CIL and 1.0MTPA HL COMBINED SCENARIO
G&A and Mine Supervision carried by CIL, HL without agglomeration, Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 14 Optimisation Results - Based on Combined 1Mtpa CIL and 1.0Mtpa HL, With Agglomeration
The following table and figure display the optimisation results based on the combined 1Mtpa CIL and 1.0Mtpa HL scenario, assuming contract mining, agglomeration is required and based on economic parameters derived from pre 2005 testwork.
TABLE 1 |
| | | | | | | | | | | | | | | | | |
GOLDBELT RESOURCES LIMITED |
| | | | | | | | | | | | | | | | | |
BELAHOURA PROJECT |
| | | | | | | | | | | | | | | | | |
PIT OPTIMISATION RESULTS - 1.0MTPA CIL and 1.0MTPA HL COMBINED SCENARIO |
G&A and Mine Supervision carried by CIL, HL including agglomeration, Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l |
Based on total resources |
| | | | | | | | | | | | | | | | | |
Pit | Pit Base | Total | Waste | Strip | CIL Mill Feed | Heap Leach Feed | Total Metal | Operating Cashflow |
| | Material | | Ratio | Tonnes | Grade | Au Metal | Tonnes | Grade | Au Metal | Insitu | Recovered | Undisc. | Discounted @ 1 |
| | | | | | | Insitu | Recovered | | | Insitu | Recovered | | | | Worst | Best |
| [mRL] | [Mt] | [Mt] | [w:o] | [Mt] | [g/t] | [koz] | [Mt] | [g/t] | [koz] | | | | | $M |
1 | 250.0 | 4.0 | 2.5 | 1.7 | 1.4 | 3.04 | 140.0 | 133.0 | 0.1 | 0.9 | 2.5 | 1.4 | 142.4 | 134.4 | 33.5 | 30.0 | 30.0 |
2 | 250.0 | 4.6 | 3.0 | 1.7 | 1.6 | 3.01 | 153.9 | 146.2 | 0.1 | 0.9 | 2.9 | 1.7 | 156.7 | 147.8 | 36.3 | 32.1 | 32.2 |
3 | 245.0 | 5.7 | 3.7 | 1.9 | 1.8 | 2.98 | 174.9 | 166.1 | 0.1 | 0.9 | 3.4 | 2.0 | 178.3 | 168.1 | 40.2 | 35.0 | 35.2 |
4 | 245.0 | 6.2 | 4.1 | 2.0 | 1.9 | 2.97 | 183.7 | 174.5 | 0.1 | 0.9 | 3.8 | 2.2 | 187.5 | 176.7 | 41.8 | 36.1 | 36.4 |
5 | 245.0 | 6.5 | 4.4 | 2.0 | 2.0 | 2.96 | 190.6 | 181.1 | 0.1 | 0.9 | 4.1 | 2.4 | 194.6 | 183.4 | 43.0 | 36.9 | 37.2 |
6 | 240.0 | 7.0 | 4.7 | 2.1 | 2.1 | 2.96 | 197.0 | 187.1 | 0.2 | 0.9 | 4.2 | 2.4 | 201.2 | 189.6 | 44.0 | 37.7 | 38.1 |
7 | 235.0 | 7.9 | 5.5 | 2.3 | 2.2 | 2.95 | 211.2 | 200.6 | 0.2 | 0.9 | 4.6 | 2.7 | 215.8 | 203.3 | 46.1 | 39.2 | 39.8 |
8 | 235.0 | 8.5 | 6.0 | 2.4 | 2.3 | 2.93 | 219.8 | 208.8 | 0.2 | 0.9 | 5.0 | 2.9 | 224.8 | 211.7 | 47.3 | 40.0 | 40.7 |
9 | 235.0 | 9.1 | 6.5 | 2.5 | 2.4 | 2.91 | 228.7 | 217.3 | 0.2 | 0.9 | 5.3 | 3.1 | 234.0 | 220.3 | 48.4 | 40.7 | 41.5 |
10 | 235.0 | 9.7 | 7.0 | 2.5 | 2.5 | 2.89 | 235.9 | 224.1 | 0.2 | 0.9 | 5.7 | 3.3 | 241.6 | 227.4 | 49.3 | 41.2 | 42.2 |
11 | 235.0 | 9.9 | 7.1 | 2.6 | 2.6 | 2.89 | 237.9 | 226.0 | 0.2 | 0.9 | 5.8 | 3.4 | 243.7 | 229.4 | 49.5 | 41.4 | 42.4 |
12 | 235.0 | 10.6 | 7.7 | 2.7 | 2.7 | 2.87 | 246.1 | 233.8 | 0.2 | 0.9 | 6.7 | 3.9 | 252.8 | 237.7 | 50.4 | 41.8 | 43.0 |
13 | 235.0 | 11.0 | 8.0 | 2.7 | 2.7 | 2.86 | 250.7 | 238.2 | 0.2 | 0.9 | 6.9 | 4.0 | 257.6 | 242.2 | 50.8 | 41.9 | 43.2 |
14 | 215.0 | 14.1 | 10.8 | 3.3 | 3.0 | 2.89 | 280.6 | 266.6 | 0.3 | 0.9 | 7.9 | 4.6 | 288.6 | 271.2 | 53.2 | 42.9 | 44.9 |
15 | 215.0 | 15.1 | 11.6 | 3.4 | 3.2 | 2.87 | 290.7 | 276.2 | 0.3 | 0.9 | 8.7 | 5.1 | 299.4 | 281.2 | 53.9 | 43.2 | 45.4 |
16 | 215.0 | 15.9 | 12.3 | 3.5 | 3.2 | 2.86 | 298.0 | 283.1 | 0.3 | 0.9 | 9.2 | 5.4 | 307.3 | 288.5 | 54.3 | 43.4 | 45.7 |
17 | 210.0 | 16.4 | 12.7 | 3.5 | 3.3 | 2.85 | 302.7 | 287.5 | 0.3 | 0.9 | 9.6 | 5.6 | 312.3 | 293.1 | 54.5 | 43.4 | 45.8 |
18 | 200.0 | 19.1 | 15.2 | 3.9 | 3.5 | 2.88 | 326.2 | 309.3 | 0.4 | 0.9 | 10.4 | 6.0 | 336.6 | 315.3 | 55.4 | 43.4 | 46.4 |
19 | 200.0 | 19.6 | 15.6 | 3.9 | 3.6 | 2.86 | 330.4 | 313.3 | 0.4 | 0.9 | 10.9 | 6.3 | 341.4 | 319.7 | 55.5 | 43.2 | 46.5 |
20 | 200.0 | 20.1 | 16.0 | 3.9 | 3.7 | 2.85 | 335.0 | 317.7 | 0.4 | 0.9 | 11.5 | 6.7 | 346.5 | 324.3 | 55.6 | 43.0 | 46.5 |
21 | 200.0 | 20.6 | 16.5 | 4.0 | 3.7 | 2.83 | 339.6 | 322.1 | 0.4 | 0.9 | 11.9 | 6.9 | 351.6 | 329.0 | 55.6 | 42.8 | 46.5 |
22 | 200.0 | 21.8 | 17.4 | 4.0 | 3.9 | 2.80 | 349.3 | 331.2 | 0.5 | 0.9 | 12.9 | 7.5 | 362.2 | 338.7 | 55.6 | 42.3 | 46.4 |
23 | 200.0 | 22.9 | 18.4 | 4.1 | 4.0 | 2.79 | 357.3 | 338.8 | 0.5 | 0.9 | 13.7 | 8.0 | 371.0 | 346.7 | 55.4 | 41.8 | 46.3 |
24 | 175.0 | 29.2 | 24.2 | 4.8 | 4.4 | 2.83 | 404.0 | 380.8 | 0.6 | 0.9 | 17.4 | 10.1 | 421.4 | 390.9 | 54.3 | 39.6 | 45.5 |
25 | 175.0 | 31.4 | 26.1 | 4.9 | 4.7 | 2.81 | 420.6 | 396.1 | 0.6 | 0.9 | 19.2 | 11.2 | 439.9 | 407.2 | 53.7 | 38.5 | 45.1 |
26 | 175.0 | 32.1 | 26.7 | 5.0 | 4.7 | 2.81 | 424.6 | 399.9 | 0.7 | 0.9 | 20.1 | 11.7 | 444.7 | 411.5 | 53.5 | 38.1 | 45.0 |
27 | 175.0 | 32.7 | 27.3 | 5.0 | 4.8 | 2.80 | 429.3 | 404.2 | 0.7 | 0.9 | 20.4 | 11.8 | 449.7 | 416.1 | 53.3 | 37.7 | 44.8 |
28 | 175.0 | 33.3 | 27.8 | 5.0 | 4.8 | 2.79 | 432.7 | 407.5 | 0.7 | 0.9 | 21.2 | 12.3 | 454.0 | 419.8 | 53.0 | 37.2 | 44.6 |
29 | 170.0 | 37.3 | 31.5 | 5.4 | 5.1 | 2.81 | 457.1 | 429.9 | 0.8 | 0.9 | 22.6 | 13.1 | 479.8 | 443.0 | 51.2 | 34.9 | 43.5 |
30 | 170.0 | 38.3 | 32.4 | 5.5 | 5.1 | 2.80 | 463.5 | 435.8 | 0.8 | 0.9 | 23.7 | 13.7 | 487.2 | 449.5 | 50.5 | 34.2 | 43.1 |
31 | 170.0 | 39.2 | 33.2 | 5.5 | 5.2 | 2.80 | 468.3 | 440.2 | 0.8 | 0.9 | 24.2 | 14.0 | 492.4 | 454.2 | 50.0 | 33.6 | 42.8 |
32 | 170.0 | 40.2 | 34.1 | 5.5 | 5.3 | 2.78 | 474.4 | 445.9 | 0.8 | 0.9 | 25.3 | 14.7 | 499.7 | 460.6 | 49.3 | 32.7 | 42.3 |
33 | 165.0 | 43.4 | 37.0 | 5.7 | 5.5 | 2.77 | 492.2 | 462.0 | 0.9 | 0.9 | 27.7 | 16.1 | 519.9 | 478.1 | 47.0 | 30.2 | 41.0 |
34 | 165.0 | 43.8 | 37.3 | 5.8 | 5.6 | 2.77 | 494.2 | 463.9 | 0.9 | 0.9 | 28.0 | 16.3 | 522.2 | 480.2 | 46.7 | 29.9 | 40.8 |
35 | 165.0 | 44.5 | 37.9 | 5.8 | 5.6 | 2.76 | 498.4 | 467.6 | 1.0 | 0.9 | 28.9 | 16.7 | 527.3 | 484.3 | 46.1 | 29.3 | 40.5 |
36 | 165.0 | 46.0 | 39.3 | 5.9 | 5.7 | 2.76 | 506.6 | 475.0 | 1.0 | 0.9 | 30.3 | 17.6 | 536.9 | 492.5 | 44.7 | 27.9 | 39.7 |
37 | 165.0 | 46.8 | 40.0 | 5.9 | 5.8 | 2.76 | 510.3 | 478.4 | 1.0 | 0.9 | 30.6 | 17.8 | 540.9 | 496.1 | 44.1 | 27.3 | 39.4 |
38 | 165.0 | 48.2 | 41.4 | 6.0 | 5.8 | 2.76 | 517.1 | 484.6 | 1.0 | 0.9 | 31.4 | 18.2 | 548.5 | 502.8 | 42.9 | 26.0 | 38.7 |
39 | 165.0 | 48.8 | 41.9 | 6.0 | 5.9 | 2.75 | 519.8 | 487.2 | 1.1 | 0.9 | 32.1 | 18.6 | 551.9 | 505.8 | 42.3 | 25.3 | 38.3 |
40 | 165.0 | 51.0 | 43.9 | 6.2 | 6.0 | 2.74 | 529.7 | 496.4 | 1.1 | 0.9 | 33.0 | 19.1 | 562.7 | 515.6 | 40.2 | 23.3 | 37.2 |
41 | 165.0 | 53.7 | 46.4 | 6.3 | 6.2 | 2.72 | 541.8 | 507.5 | 1.2 | 1.0 | 36.4 | 21.1 | 578.2 | 528.6 | 37.3 | 20.7 | 35.6 |
42 | 165.0 | 54.2 | 46.8 | 6.3 | 6.2 | 2.71 | 543.8 | 509.4 | 1.2 | 1.0 | 37.2 | 21.6 | 581.0 | 531.0 | 36.7 | 20.1 | 35.3 |
43 | 165.0 | 59.5 | 51.7 | 6.6 | 6.5 | 2.69 | 566.3 | 530.0 | 1.3 | 1.0 | 40.8 | 23.7 | 607.1 | 553.7 | 31.0 | 14.7 | 32.3 |
44 | 165.0 | 59.8 | 51.9 | 6.6 | 6.6 | 2.69 | 567.4 | 531.1 | 1.3 | 1.0 | 41.2 | 23.9 | 608.6 | 554.9 | 30.7 | 14.4 | 32.1 |
45 | 165.0 | 63.2 | 55.0 | 6.7 | 6.8 | 2.67 | 582.3 | 544.9 | 1.4 | 1.0 | 43.3 | 25.1 | 625.6 | 570.0 | 26.7 | 10.8 | 30.1 |
46 | 160.0 | 64.4 | 56.1 | 6.8 | 6.8 | 2.67 | 587.7 | 549.4 | 1.4 | 1.0 | 44.3 | 25.7 | 632.0 | 575.1 | 25.2 | 9.6 | 29.4 |
47 | 160.0 | 65.0 | 56.7 | 6.8 | 6.9 | 2.67 | 589.8 | 551.4 | 1.4 | 1.0 | 44.9 | 26.1 | 634.7 | 577.4 | 24.5 | 8.9 | 29.1 |
48 | 160.0 | 66.9 | 58.4 | 6.9 | 7.0 | 2.67 | 598.1 | 558.6 | 1.5 | 1.0 | 46.0 | 26.7 | 644.1 | 585.3 | 22.2 | 6.9 | 27.9 |
49 | 160.0 | 67.8 | 59.3 | 7.0 | 7.0 | 2.67 | 601.9 | 561.9 | 1.5 | 1.0 | 46.5 | 27.0 | 648.4 | 588.9 | 21.1 | 5.9 | 27.4 |
50 | 160.0 | 69.5 | 60.9 | 7.1 | 7.1 | 2.67 | 608.7 | 567.9 | 1.5 | 1.0 | 47.5 | 27.5 | 656.2 | 595.4 | 18.9 | 4.2 | 26.3 |
51 | 150.0 | 71.3 | 62.5 | 7.1 | 7.2 | 2.66 | 615.8 | 574.3 | 1.6 | 1.0 | 49.3 | 28.6 | 665.1 | 602.9 | 16.4 | 2.3 | 25.0 |
52 | 150.0 | 72.8 | 63.9 | 7.2 | 7.3 | 2.65 | 621.4 | 579.3 | 1.6 | 1.0 | 50.4 | 29.2 | 671.8 | 608.6 | 14.3 | 0.6 | 24.0 |
53 | 150.0 | 75.1 | 66.0 | 7.3 | 7.4 | 2.65 | 629.7 | 586.7 | 1.7 | 1.0 | 53.1 | 30.8 | 682.9 | 617.5 | 11.0 | -1.8 | 22.4 |
54 | 150.0 | 75.6 | 66.5 | 7.3 | 7.4 | 2.65 | 632.0 | 588.7 | 1.7 | 1.0 | 53.4 | 31.0 | 685.4 | 619.7 | 10.2 | -2.4 | 22.0 |
55 | 150.0 | 75.8 | 66.6 | 7.3 | 7.4 | 2.65 | 632.3 | 589.0 | 1.7 | 1.0 | 53.5 | 31.0 | 685.8 | 620.1 | 10.1 | -2.5 | 22.0 |
56 | 150.0 | 76.3 | 67.2 | 7.3 | 7.5 | 2.65 | 634.2 | 590.6 | 1.7 | 1.0 | 54.3 | 31.5 | 688.5 | 622.1 | 9.2 | -3.2 | 21.5 |
57 | 150.0 | 76.7 | 67.5 | 7.4 | 7.5 | 2.65 | 635.4 | 591.7 | 1.7 | 1.0 | 54.5 | 31.6 | 690.0 | 623.4 | 8.7 | -3.7 | 21.3 |
58 | 150.0 | 77.4 | 68.2 | 7.4 | 7.5 | 2.64 | 637.7 | 593.8 | 1.7 | 1.0 | 54.9 | 31.9 | 692.6 | 625.7 | 7.7 | -4.5 | 20.8 |
59 | 150.0 | 79.0 | 69.7 | 7.4 | 7.6 | 2.64 | 642.5 | 598.1 | 1.8 | 1.0 | 57.0 | 33.0 | 699.5 | 631.2 | 5.2 | -6.4 | 19.7 |
60 | 150.0 | 82.9 | 73.4 | 7.7 | 7.8 | 2.63 | 655.5 | 610.3 | 1.8 | 1.0 | 58.5 | 33.9 | 714.1 | 644.3 | -0.6 | -10.9 | 17.0 |
61 | 150.0 | 86.3 | 76.5 | 7.8 | 7.9 | 2.63 | 665.3 | 618.7 | 1.9 | 1.0 | 63.2 | 36.6 | 728.5 | 655.3 | -5.9 | -14.9 | 14.6 |
 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
FIGURE 1
GOLDBELT RESOURCES LIMITED
BELAHOURA PROJECT
PIT OPTIMISATION RESULTS - 1.0MTPA CIL and 1.0MTPA HL COMBINED SCENARIO
G&A and Mine Supervision carried by CIL, HL including agglomeration, Au price @ $450/oz, Royalty @ 3.0%, Fuel price @ $0.72/l
Based on total resources

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Appendix 15 Plan View of X Sections and Cutbacks Adopted For Schedule
Plan View showing Pit Shell 26 in Conjunction with the Cutbacks 2 and 13

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
Cross Sections showing Pit Shell 26 in Conjunction with the Cutbacks 2 and 13

 | |
| |
| Project Report |
Date : 2nd December 2005 | GBM Proposal No. : GBM-0207 |
Document No. : 0207-PFS-001E.doc | Revision No. : 7 |
| |
Project Title : Analysis of Technical Criteria for the Belahouro Gold Mine Project on behalf of Goldbelt Resources Ltd |
