Exhibit 99.3
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Table of Contents
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | i |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | ii |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | 111 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
List of Figures
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | iv |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
List of Tables
List of Appendices
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | v |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
3 SUMMARY
The Rosario project comprises structurally and stratigraphically controlled Cu-Au mineralized zones, hosted by andesitic volcanic strata, diorite intrusions, intrusive breccias, and hydrothermal breccias. Within the Rosario project, surface and underground mine workings, hydrothermal alteration, copper showings, and geochemical rock chip sampling, define a 1.4 km square area of hydrothermal alteration that contains numerous distinct zones of Cu-Au mineralization. Cu-Au mineralization is present as stratigraphically controlled, tabular mineralized zones (“mantos”), high angle mineralized structural zones, and mineralized bodies developed in or adjacent to intrusive and related intrusive and/or hydrothermal breccias. The most important copper-gold occurrences thus far identified are those contained with the Rosario concessions. Oxide and sulfide copper deposits throughout the district have been exploited by surface and underground methods, and at Rosario, an underground mine is currently producing approximately 2,000 tonnes per month of sulfide ore containing ~2% Cu and >0.5 gpt Au. The exposed copper-gold occurrences are best classified as intrusive-related systems, characterized by alteration mineral assemblages containing albite, tourmaline, actinolite/tremolite, sphene, sericite and/or clay minerals in varying proportions. The mineralized areas visited by the author at the Rosario project are geologically similar to economically important copper deposits that have been successfully mined elsewhere in Chile. The evaluation of the project by the author validated that the project host targets of economic significance that merit drill testing. Existing mining operations conclusively show that the mineralized system formed deposits of potential economic significance, but data is insufficient to determine the size and metal content of the currently exploited deposits. Drilling should be conducted with the objective of determining the orientation, size, and grade of the exposed mineralized zones. Additionally, exploration drilling is required to test for the presence of unexposed mineralized zones hosted within the identified hydrothermal alteration envelope. A $2.4M USD, two-stage exploration program, including a minimum of 3,000m of drilling is recommended.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 1 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
4 INTRODUCTION AND TERMS OF REFERENCE
4.1 Introduction
Resource Geosciences de Mexico SA de CV (RGM) and Matthew D. Gray, the author of this report, were asked by Bridgeport Ventures Inc. to perform an independent evaluation of the Rosario copper-gold project in Region III, Atacama, Chile, and to provide Bridgeport Ventures with a technical report compliant with CSA National Instrument 43-101. This report has been prepared to meet Canadian Securities Administrators National Instrument 43-101 standards. The report provides a summary of the geology of the project and its potential to host economic mineral deposits.
This revised report, with Amended date 7 December 2010, differs from the version dated 27 November 2009, revised 4 December 2009, which was filed on SEDAR on 16 December 2009, in that this report has modifications to Items 4.3, 4.4. and 5, such modifications made to insure compliance with CSA NI43-101 policies regarding limitations on disclaimers.
4.2 Terms of Reference
This Technical Report has been prepared for Bridgeport Ventures Inc., a publicly traded company listed on the TSX Venture Exchange under symbol BPV. Matthew Gray, senior partner of RGM, an independent geosciences consulting firm contracted by Bridgeport Ventures Inc., visited the Rosario project, reviewed the available geologic data, and took independent samples in connection with the preparation of the Technical Report.
4.3 Purpose of Report
The purpose of this report is to provide an independent assessment of the Rosario copper-gold project and to recommend an exploration program to enhance the economic potential of the project. This report was prepared following the guidelines of CSA National Instrument 43-101.
This Technical Report and all publications, exhibits, documentation, conclusions, and other work products obtained or developed by RGM for this Technical Report are for sole and exclusive use of Bridgeport Ventures Inc. However all reports, publications, exhibits, documentation, conclusions, and other work products obtained or developed by RGM during completion of this Technical Report shall be and remain the property of RGM. Unauthorized use or reuse by third parties of reports, publications, exhibits, documentation, conclusions, and other work products obtained or developed by RGM for the purposes of this Technical Report is prohibited. This Technical Report was prepared specifically for the purpose of complying with Canadian Securities Administrators National Instrument 43-101 and may be distributed to third parties and published without prior consent of RGM if the Technical Report is presented in its entirety without omissions or modifications, subject to the regulations of NI43-101.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 2 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
4.4 Sources of Information
In the preparation of this report the author has relied on his own observations and independent assay data, supplemented by information obtained through review of both published and unpublished documents and maps. In addition to the author’s own observations and assay data, sources of information regarding regional geology, mining history of the region, and topographic data, include:
- | Geologic, geophysical, and assay data collected and published by the Servicio Nacional de Geología y Minería, Subdirección Nacional de Geología, a Chilean Federal agency. | |
- | Topographic and physiographic data collected and published by the Instituto Cartografico Militar, a Chilean Federal Agency. |
Data that was not generated by the author has not been independently verified, except as noted in Item 16 of this report. Where information from unverified sources is relevant to interpretations and discussions of the economic potential of the project, the source of information is explicitly mentioned.
4.5 Field Examination and Data Review by the Qualified Person.
The Qualified Person responsible for this report, Matthew D. Gray, Ph.D., C.P.G., President of Resource Geosciences de Mexico SA de CV, conducted two separate field visits to the Rosario project. The project was briefly visited on 29 July 2009 while the author evaluated mines in the region. The author returned to the project for six days in October, 2009. The purpose of the visit was to examine the property geology, the most important known mineral occurrences and historic inactive mine workings, and to collect independent geochemical samples of altered and mineralized areas. The author also spent several days in RGM’s Hermosillo, Sonora office reviewing and interpreting geologic and assay data obtained during the site visit.
Prior to the field visit and data review conducted for the purposes of this Technical Report, the author had been directly involved in mineral exploration programs in the region, but had not conducted examinations of the Rosario project.
4.6 Definitions and Translations
CONAMA | - | Comision Nacional de Medioambiente (National Environmental Commission) |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 3 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
ENAMI | - | Empresa Nacional de Mineria |
gpt | - | grams per tonne |
Bridgeport | - | Bridgeport Ventures Inc. |
ICM | - | Instituto Cartografico Militar (Military Mapping Institute) |
km | - | kilometer |
M | - | million |
NAD | - | North American Datum |
oz. | - | Troy Ounce |
ppm | - | parts per million |
PSAD56 | - | Provisional South American Datum 1956 |
RGM | - | Resource Geosciences de Mexico SA de CV |
Rio Condor | - | Rio Condor Resources S.A. |
SERNAGEOMIN | - | Servicio Nacional de Geología y Minería, Subdirección Nacional de Geología (Chilean Federal Geological and Mining Survey) |
USD | - | United States Dollar |
UTM | - | Universal Transverse Mercatur |
WGS84 | - | World Geodetic System 1984 datum |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 4 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
5 RELIANCE ON OTHER EXPERTS
The professional opinions expressed in this report are based in part on data and information generated by and obtained from the property owner, Rio Condor Resources S.A., experts hired by Bridgeport Ventures Inc., and public domain sources. The author of this report has excercised all reasonable care in reviewing the supplied information and believes that the information provided is accurate. Data that was not generated by the author has not been independently verified, except as noted in Item 16 of this report. Where information from unverified sources is relevant to interpretations and discussions of the economic potential of the project, the source of information is explicitly mentioned. General information for the Rosario property was obtained from the following sources:
Material | Source |
Mining concession Information | Quinzio y Compania Abogados, Legal Counsel, Santiago, Chile; Juan Bednar R., Minerals Landman, Santiago, Chile |
Assay data, due diligence sampling by M Gray | ALS Chemex Laboratories Inc. |
Regional and local geologic maps | Servicio Nacional de Geología y Minería, Subdirección Nacional de Geología |
Regional and local topographic data | Instituto Cartografico Militar |
Appropriate scientific methods and best professional judgment were utilized in the collection and interpretation of data discussed in this report. However, users of this report are cautioned that the evaluation methods used herein are subject to inherent uncertainties and assumptions, over which Matthew D. Gray and RGM have no control. These uncertainties and assumptions are stated herein. Users of this report are hereby advised to be aware of and understand these uncertainties and assumptions.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 5 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
6 PROPERTY DESCRIPTION AND LOCATION
6.1 Area and Location
The Rosario project comprises 324 Ha. of mining concessions and is located in the provincia of Copiapó, Region III, Atacama, Chile, approximately 38 km S-SE of the city of Copiapó (Figure 6.1) .
The center of the project area is located at UTM Zone 19 J, Southern Hemisphere, 384,900E 6,937,900N, Datum WGS 84, or South Latitude 27o 40’ 41” West Longitude 70o 10’ 03”, Datum WGS 84.
All geographic references in this report utilize UTM Zone 19 J Southern Hemisphere and datum WGS 84 unless otherwise stated.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 6 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 6.1. Rosario project location map.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 7 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
6.2 Claims and Title
Mining and exploration rights in Chile are controlled by the Federal Government. Private parties can obtain mineral rights via solicitation of an exploration concession (pedimento) and prior to exploitation, converting the exploration “pedimento” to an exploitation concession. The mining concessions are administered by the SERNAGEOMIN, a Federal agency. To maintain concessions in good legal standing, concession holders are obligated to pay annual tax payments.
The Rosario project consists of 4 concession groups covering in aggregate 324 Has and one application for a mining concession currently under review for issuance of title. The titled mining concessions are shown in Figure 6.2 and concession information is summarized in the embedded table. The legal standing of these claims has been verified by Bridgeport’s legal counsel in Chile, Lic. Cristian Quinzio of Quinzio y Vergara in Santiago, Chile. Quinzio has also reviewed and confirmed the validity of the purchase option contracts by which Rio Condor Resources SA (Rio Condor), may obtain ownership of the mining concessions. Bridgeport has agreed to acquire Rio Condor.
As specified in Title 5, Paragraph 3, Section 2a, Article 74, of the Chilean Federal Mining Law (Codigo Minero), the location of concession boundaries are marked in the field with survey monuments placed by a registered engineer or minerals landman (perito minero) at the vertices of each claim group. During the site visit to the project the author located several survey monuments and obtained UTM coordinates for them using a Garmin GPS model Map60 CSX. The survey monuments matched the concession vertices indicated on the mineral claims land maps.
The claims and claim application are currently controlled by Rio Condor by means of five separate agreements whereby Rio Condor can earn a 100% interest in the mining concessions and applications, subject to a 2% NSR which may be purchased for $2M USD, by making annual cash payments over a four year period totaling $10.4M USD.
Under terms of the option agreements, Rio Condor may only waive all together the five (5) Option Agreements and does not have the right to waive one or more independently. This means that the option granted by each Option Agreement must be exercised collectively with all Option Agreements. The Rosario 1/10, Julia 1/18, Eliana I 1/20 and Eliana II 1/22 – Eliana III 1/2 Option Agreements contemplate that should the option be exercised then from the beginning of commercial production of each Mining Property a NSR Royalty of 2% must be paid by Rio Condor on a quarterly basis. Rio Condor may acquire the NSR Royalty by paying to all the vendors a purchase price of US$2,000,000. The NSR Royalty payments and if applicable its purchase price, is to be distributed among the four vendors according to the following percentages: Rosario, 26,71%; Julia, 10,29%; Eliana I, 52,82%; Eliana II, 5.09% y Eliana III, 5.09% .
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 8 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
6.2.1 Rosario Concessions
Rio Condor may obtain from SLM Rosario Una de la Sierra San Marcos, a 100% interest in the Rosario 1 to 10 concessions, subject to a 2% NSR which may be purchased for $534,200 USD, under terms of a purchase option agreement executed on 5 November 2009. Rio Condor may exercise the purchase by making cash payments totaling $2,670,589 USD over a 4 year period. An initial payment of $66,765 USD has been made, and the next payment is due on 5 November 2010 in the amount of $200,294 USD.
Under current Chilean mining law a mining concession must be a square or rectangle with minimum dimensions of 100 x 100m, positioned such that sides are oriented due North-South and East-West. Because of this restriction, the ground shown in white in a stair step pattern surrounding the Rosario 1 to 10 concessions cannot be claimed by any person as an independent and individual mining concession because none of such stair steps considered individually comply with the minimum dimensions and position requirements already referred to. Under Chilean mining law, at such time that this ground is completely enclosed by other valid mining concessions, these open fractions automatically convert to irregularly shaped concession blocks called “demasias” with rights assigned to the senior contiguous concession. In this case, the Rosario concession block is the senior concession group with rights to this ground. Rio Condor’s legal counsel has advised that it is convenient to produce the “demasias” that will favor the Rosario concessions by applying for a mining concession that aside from overlapping areas already comprehended by some of the Rosario project concessions, would take part of the open areas and confine the Rosario property with two other neighboring exploitation mining claims, therefore producing the “demasias”, thus triggering the eventual assignment of this ground to the Rosario concession.
Up until such time that Rio Condor exercises the purchase option, SLM Rosario Una de la Sierra San Marcos is permitted to continue exploitation activities up to 6,000 tonnes per month.
6.2.2 Julia Concessions
Rio Condor may obtain from SLM Julia Una de la Sierra San Marcos, a 100% interest in the Julia 1 to 18 concessions, subject to a 2% NSR which may be purchased for $205,800 USD, under terms of a purchase option agreement executed on 5 November 2009. Rio Condor may exercise the purchase by making cash payments totaling $1,029,412 USD over a 4 year period. An initial payment of $25,735 USD has been made, and the next payment is due on 5 November 2010 in the amount of $77,206 USD.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 9 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
6.2.3 Eliana II and Eliana III Concessions
Rio Condor may obtain from SLM Eliana II Una de la Sierra San Marcos and SLM Eliana III Una de la Sierra San Marcos, a 100% interest in the Eliana 1 to 22 and Eliana III 1 to 2 concessions under terms of a purchase option agreement executed on 5 November 2009. Rio Condor may exercise the purchase by making cash payments totaling $1,017,646 USD over a 4 year period. An initial payment of $25,441 USD has been made, and the next payment is due on 5 November 2010 in the amount of $76,323 USD.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 10 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
6.2.4 Tamara Concessions
Rio Condor may obtain from SLM Tamara I Una de la Sierra San Marcos a 100% interest in the Tamara 1 to 9 concessions under terms of a purchase option agreement executed on 5 November 2009. Rio Condor may exercise the purchase by making cash payments totaling $400,000 USD over a 4 year period. An initial payment of $15,000 USD has been made, and the next payment is due on 5 November 2010 in the amount of $35,000 USD.
6.2.5 Eliana I Manifestacion
Rio Condor may obtain from SLM Eliana I Una de la Sierra San Marcos a 100% interest in the Eliana 1 to 20 concessions under terms of a purchase option agreement executed on 5 November 2009. Rio Condor may exercise the purchase by making cash payments totaling $5,282,353 USD over a 4 year period. An initial payment of $132,059 USD has been made, and the next payment is due on 5 November 2010 in the amount of $396,176 USD.
Up until such time that Rio Condor exercises the purchase option, SLM Eliana I Una de la Sierra San Marcos is permitted to continue exploitation activities up to 4,000 tonnes per month.
The Eliana I manifestacion (claim application) is currently under review by SERNAGEOMIN and the total hectares that will be awarded to this concession is not yet determined. The application covers ground that is east of, and not contiguous with, the Julia concession block. The Eliana I application is physically separated from the core of the project area and is not shown on claim map presented as Figure 6.2.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 11 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 6.2.Concession Map. Note that white stair stepshaped areassurrounding theRosarioconcession areirregularfractions with rightsultimatelyassignable to theRosarioconcession, asdescribed in Item 6.2.1 of thisreport.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 12 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
6.3 Surface Rights
The ownership of surface rights has been investigated by Rio Condor and by a minerals landman and no record of private surface rights has been found in the public record thus the lands are interpreted to be Federally held. Rio Condor has requested confirmation of Federal surface rights from the Chilean Federal lands bureau. Chilean mining law allows exploration activities to proceed on undeveloped lands without requirement of a surface access agreement. The legal ownership of surface rights has not been verified by the author or RGM.
6.4 Mineralization
Numerous active small mines and exploration workings are present within the property area. Nearly all are developed on zones of supergene copper mineralization, and are easily identified in the field by the distinctive blue, green, and blue-green coloration of the rock caused by the presence of copper oxides, carbonates, sulfates, silicates, and halides, accompanied by varying amounts of iron-oxide staining. Controls on mineralization include high angle structural zones, volcanic stratigraphic contacts, and intrusive and/or hydrothermal breccias. The metals currently produced are copper and gold. The principal mineralized occurrences and mines in the district that have thus far been explored are described in Item 11 of this report.
6.5 Environmental Liability
Potential environmental liabilities associated with the active and historic mining at the project have not been investigated or verified by the author or RGM, but no significant environmental liabilities are apparent. Small abandoned mines and unmineralized rock piles are present but are not generating acid drainage. There are no plant facilities present within the project area, nor are tailings piles present.
6.6 Permits
Exploration and mining activities in Chile are subject to control by the Comision Nacional de Medioambiente (CONAMA). A review of environmental compliance and permitting issues was not within the scope of the present study. Because the Rosario project is within an active mining district, and the project itself hosts an active mining operation, it is presumed that additional exploration activities at Rosario will not be prohibited by environmental regulations. Chilean mining law grants a mining concession holder the right to conduct basic exploration activities, including drilling, without the need for prior Federal approval.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 13 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
7 ACCESS, CLIMATE, INFRASTRUCTURE, AND PHYSIOGRAPHY
The property is located approximately 38 kilometers east-southeast of the city of Copiapó, in the provincia of Copiapó, comuna of Tierra Amarilla, Region III, Atacama, Chile (Figure 6.1) . Access is by road from Copiapó and requires approximately 1 hour of travel time. The first 26 kilometers is via paved Federal Highway 35, heading south to the electrical substation at the COEMIN mineral processing plant, thence turning east on unpaved highway C401. Beginning at C401 the remaining distance (approximately 20 kilometers) is on unpaved but well maintained high speed roads. From the COEMIN plant one travels east 7 km on Highway 401 and then turns south on road C405 continuing 12km, thence west onto the access road to the Rosario mine for a distance of 1.5km to arrive at the mine area. Road C405 passes directly through the project area. Electric transmission lines follow highway C401 and are close as 11 km to the project.
All basic services are available in Copiapó and Tierra Amarilla, both of which are important mining centers. The project area is unpopulated, except for the camps of the miners currently exploiting the copper deposits. Most of the inhabitants of the region depend on mining and agriculture (grapes) for economic sustenance. An adequate supply of experienced labor for mining operations can be drawn from the region.
The nearest commercial airport is located 46km west of Copiapó and is served by daily flights from Santiago and other Chilean cities.
The property is in the southern portion of the Atacama desert, west of the Andean Cordillera. The topography consists of gentle mountain ranges separated by narrow valleys. Elevations in the project area range from 1,050 meter ASL to over 1,460 meter ASL. Areas of low relief in the southern portion of the project area are suitable locations for mill sites, leach pads, waste dumps, and other mine related infrastructure.
The climate in the area is arid with seasonal temperatures ranging from an average annual high of 28oC in January and an average annual low temperature of 5oC in July, as measured at meteorological station Copiapó-Chamonate located at 27° 18' S, 70°25' W, 291 m ASL (Dirección Meteorológica de Chile, 1991). Average annual precipitation is 12 mm. Exploration activities may be conducted year round.
Vegetation in the area is sparse to absent, consisting only of small scrub in the valley floors along temporal river or stream channels.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 14 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
8 HISTORY
The date of the earliest exploration and mining activity in the San Marcos district is undocumented. Early exploration of the district probably occurred in the late 1700’s concurrent with the early exploitation of mines in the nearby Punta del Cobre and Pampa Larga mining districts (Ortiz et al, 1966; Salas, 1954).
Modern exploration of the district consists of direct mining of copper oxide showings exposed in outcrop using tracked excavators. Small scale exploitation of mineralized zones exposed in outcrop commenced in the early 1990s with ores produced sold directly to the Federally controlled mining company, Empresa Minera Nacional SA (ENAMI), operator of a mill and floatation concentration plant located adjacent to Copiapó.
The only drilling known to have been completed in the district are shallow (<100m) diamond core holes completed within or adjacent to small surface cuts and pits at the SOESMI and Trillador properties. In the case of the former, the claimant reports that Sociedad Punta del Cobre SA (Pucobre) completed a 916m drill campaign in the first semester of 2009, and in the case of the latter, ENAMI completed an unknown number of drillholes targeting the extensions of copper oxide mineralization exposed in surface cuts and open pits. During field review of the Simonetta area the author noted an uncapped and uncased abandoned drillhole, apparently an exploration drillhole targeting a zone of copper oxide mineralization exposed in a small surface cut. The entity responsible for this drilling and the results are unknown to the author.
During the field review ground electrode stations for IP surveys were noted in the Simonetta and Rosario concessions. The claimant of the Simonetta concession advises that Freeport conducted the IP survey in the area in 2008.
Minera Barahona has been mining oxide and sulfide ores at the Rosario concession from surface cuts, open pits, and a spiral decline, and currently is selling approximately 2,000 tonnes per month of sulfide ores to ENAMI, delivered to the ENAMI mill and concentration plant outside of Copiapó.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 15 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
9 GEOLOGICAL SETTING
9.1 Regional Geology
The Rosario Project is within the San Marcos Mining District, hosted by the Cretaceous Cerillos Formation, a 6,000m thick sequence of dominantly clastic sedimentary strata which crops out continuously in an 8km wide, 70km long, N-NE trending swath (Arevalo, 2005). Regional geology is summarized in Figure 9.1. The upper 3,500m of the sequence hosts conglomerates and volcanic breccias intercalated with sandstones and andesite and basaltic andesite lavas and autoclastic breccias. Diaz et el. (1998) described irregular manto, chimney, and vein Cu deposits hosted by andesitic lavas of the Cerrillos Formation where they were intruded by dikes and small stocks of andesitic and dioritic composition. The deposits described by Diaz et al. (1998) contain specularite and/or magnetite as characteristic gangue minerals. The Cerrillos Formation lacks chronostratigraphic fossils but paleontological and radiometric age dates of underlying strata and cross cutting intrusives fix the age of the Cerrillos Formation within the range 89 to 125 Ma (Aptian – Turonian). Geologic and metallogenic maps (Diaz et al., 1998, Arevalo, 2005) published by the Chilean Geological Survey (SERNAGEOMIN – Servicio Nacional de Geologia y Mineria) demark an extensive zone of hydrothermal alteration (mineral assemblage not specified) that partly covers the Rosario project area. The Cerillos Formation overlies and is separated from the Jurassic-Cretaceous Chanarcillo Group and the Punta del Cobre Formation by an erosional disconformity.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 16 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.1. Regional geologic map of Rosario area, summarized from Arevalo, 2005.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 17 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
9.2 Local Geology
The following discussion of project geology is based upon 6 days of field examinations by the author. A reconnaissance geologic map of the district is presented as Figure 9.2. A listing of waypoints where geologic data was collected is presented as Appendix C.
9.2.1 Volcanic Strata
The project area is underlain by a compositionally monotonous sequence of andesitic volcanic and volcaniclastic strata. A lack of compositionally or texturally distinct marker units hinders mapping of the area. Andesites observed include dark, magnetic, fine grained, sparsely porphyritic aphanitic andesites in which fine grained plagioclase phenocrysts are the only megascopically observable mineral, and course grained, plagioclase phenocrystic, porphyritic-aphanitic, non magnetic andesites. Breccia textures interpreted to be autoclastic flow breccias were observed (Figure 9.3) but many of the andesites lack textural evidence that would indicate a subaerial rather than shallow subvolcanic origin. Fine grained volcaniclastic arenites and siltstones are interpreted to be intercalated with the andesites. The volcaniclastic strata recessively weather and are generally only exposed in road cuts (Figure 9.4) . Where primary volcanic stratification was observed and measured, it consistently had northeast strike with dip to the southeast at 25 to 45 degrees. (Figures 9.5 and 9.6) . Many volcanic lithologic contacts exhibit some degree of structural dislocation (Figure 9.7), but the contacts are interpreted to reflect primary volcanic contacts that served as zones of weakness that localized later small scale displacements as a result of post-depositional stress. Displacement along the primary contacts is unquantified but is interpreted to be a result of relatively minor bedding plane slip.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 18 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.2.Reconnaissancegeologic map ofRosarioproject area.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 19 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.3. Autoclastic angular breccia texture. Andesite clasts in andesite matrix, waypoint 62.
Figure 9.4. Clay altered, oxidized and weathered, fine grained volcaniclastic arenites and siltstones, waypoint 80.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 20 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.5. Photo looking SW at SE dipping volcanic strata forming dip slope.
Figure 9.6. SE dipping contact between andesites at waypoint 82. Photo looking NE.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 21 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.7. Detail of andesite contact at waypoint 82 showing carbonate veining and apparent slip planes along contact.
9.2.2 Intrusives
Reconnaissance mapping indicates that the andesitic sequence has been intruded by dikes, sills, and small stocks of diorite and andesitic subvolcanic intrusives. Three compositionally similar but texturally different types of intrusive are recognized: dark colored, fine grained, magnetic, plagioclase bearing dikes and sills; equigranular, fine grained, dioritic intrusions present as sills, dikes and irregular plugs; and course grained, plagioclase phenocrystic, porphyritic-phaneritic dioritic intrusive. The intrusives are compositionally similar to the strata they intrude, and in many cases are difficult to distinguish from their host rocks where the textural contrast is slight and intrusive contacts are not exposed. Pervasive hydrothermal alteration further obscures the nature of the intrusives. Where they are intensely hydrothermally altered, they are not distinguishable from their altered host rocks. Even where not intensely altered, conformable sills are not readily distinguishable from the volcanic strata.
The fine grained, magnetic, plagioclase phenocrystic, porphyritic-aphanitic intrusives often are not intensely hydrothermally altered and appear to post date the mineralizing event (Figure 9.8) . These intrusions are often erosionally resistant and cap hills or form dip slopes (Figure 9.9), giving a misleading impression of a wide distribution. The equigranular, fine grained, dioritic intrusives appear to be present as both sills conformable with volcanic bedding and as dikes or plugs that transect the volcanic stratigraphy (Figures 9.10 and 9.11) . The coarse grained, plagioclase phenocrystic, porphyritic-phaneritic intrusive is observed in the western portion of the project area where its outcrop pattern suggests it is present as small stocks. It is seen in razor sharp contact with the country rock andesites (Figures 9.12 and 9.13) and it is crosscut by fine grained to aphanitic andesitic dikes (Figure 9.14) . A fine grained, equigranular dioritic intrusion outcrops in the eastern portion of the project area and the Rosario mine decline is developed in this intrusive. Exposures in the Rosario decline are consistent with the dioritic intrusion(s) being present at least in part as sills conformable to the volcanic stratigraphy.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 22 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.8. Unaltered, dark grey, plagioclase phenocrystic, magnetic andesitic dike or sill intruding pervasively bleached, clay-sericite altered volcanic at waypoint 10.
Figure 9.9. Fine grained magnetic plagioclase phenocrystic sill cutting intrusive breccias and forming dip slope at waypoint 072.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 23 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.10. Fine grained, weakly porphyritic, plagioclase phenocrystic, dioritic intrusive with xenolith of grey limestone, waypoint 6.
Figure 9.11. Near vertical contact between fine grained, equigranular, dioritic intrusive and andesitic volcanic, waypoint 88.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 24 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.12. Sharp intrusive contact between coarse grained, plagioclase phenocrystic, porphyritic phaneritic diorite and country rock andesites, waypoint 110.
Figure 9.13. Detail of porphyry intrusion contact with country rock andesites at waypoint 110.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 25 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.14. Fine grained andesitic dike in apparent crosscutting relationship with coarse grained, plagioclase phenocrystic, porphyritic-phaneritic, dioritic intrusive, waypoint 23.
9.2.3 Breccias
Outcrops of matrix-supported, rounded to subangular breccias comprised of dioritic clasts in a dioritic matrix are interpreted as intrusive breccias associated with emplacement of diorite (Figures 9.15, 9.16, 9.17, 9.18, and 9.19) . Breccias with similar texture that exhibit pervasive hydrothermal alteration of both clasts and matrix may represent altered intrusive breccias or may be hydrothermal breccias cutting diorite (Figure 9.20) . These breccias are often associated with mineralization as discussed in Item 11 of this report.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 26 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.15. Intrusive breccia exposed in Rosario decline comprised of large angular dioritic clasts in fine grained dioritic (?) intrusive matrix. Note white color of clast caused by pervasive albitization, with similar intense alteration absent from matrix.
Figure 9.16. Detail of contact between clast and matrix, intrusive breccias exposed in Rosario decline.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 27 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.17. Intrusive breccias, diorite composition, waypoint 60.
Figure 9.18. Intrusive breccias, diorite composition, waypoint 32.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 28 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 9.19. Extremely coarse, mega-clastic breccias exposed in pit highwall waypoint 32.
Figure 9.20. Angular clast supported breccia exposed in Rosario mine decline. Pervasively albite altered. Interpreted as hydrothermal breccia.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 29 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
9.2.4 Structure
A lack of distinctive mappable marker units precludes inference of large scale structures by offsets, termination, or repeats of outcrop patterns. Numerous NA265 to 315 striking, steeply SW dipping to vertical, fault planes were noted in mine workings and prospects throughout the project area, and in one case a mapped fault correlates with a linear feature observable on satellite images with an apparent strike length of greater than 600m, however in most cases faults observed cannot be confidently projected beyond the immediate area of exposure. The inferred northeast striking fault shown on Figure 9.2 is not directly observed but is inferred on the basis of the linear termination of outcrops of intrusive and breccias. High angle, sheeted fractures and joints were observed at every azimuth and at the level of reconnaissance mapping completed thus far, no dominant structural fabric is apparent.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 30 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
10 DEPOSIT TYPES
The exploration target recognized at the project is an intrusive related Cu-Au deposit, with ore metal distribution controlled by both lithology and structure. The Rosario mineralized system shares some common traits with IOCG (iron oxide copper gold) deposits including an association with Na-metasomatism and ore mineralogy dominated by chalcopyrite, and the deposit is located within a productive IOCG mineral belt, however hypogene specularite and/or magnetite, which are an essential component of IOCG deposits, were not observed to be present. The Rosario deposit has traits in common with Chilean manto type copper deposits including andesitic host rocks, stratigraphic control to metal distribution, association with dioritic intrusions, and albitic alteration, however the Rosario system’s elevated gold content contrasts sharply with typical Chilean manto deposits that are gold deficient, Cu-Ag systems. The Rosario system is classified by the author as intrusive related, but not a porphyry system. Rosario lacks phyllic (quartz-sericite-pyrite) alteration zones, potassic alteration zones, and stockwork veinlets, all of which are characteristic of porphyry systems.
Three partially overlapping mineralized environments are present at the prospect, and all are interpreted to be genetically related:
1. | Manto copper deposits, in which the host rocks are andesitic volcanic strata and primary copper sulfide mineralization is present in conformable stratiform zones. | |
2. | Intrusive and breccia hosted copper deposits, in which the host rock is dioritic intrusion and/or related breccias. | |
3. | Structurally controlled copper deposits, in which distribution of copper mineralization is related to high angle faults and structural zones. |
Any one or all three mineralization styles may be present at a particular target area. High angle structures may control the distribution of mantos, with mantos preferentially developed adjacent to them, and the structures may also influence emplacement of intrusions, intrusive breccias, and hydrothermal breccias, thus the intrusive and breccia related Cu occurrences may be cospatial with or independent of manto and high angle mineralized zones.
The Rosario system exhibits some similarities to both Chilean manto and IOCG deposits. Some of the economically important examples of these ore deposit types are discussed herein.The mineralization described for the mines in this section is not necessarily indicative of the mineralization at the Rosario property.
Chilean manto deposits are stratigraphically controlled, andesite hosted Cu deposits, and have been an economically significant ore type in Chile. The mineralized mantos are tabular zones developed in favorable volcanic strata, and the mantos are developed adjacent to high angle mineralized structural zones. High angle hydrothermal breccias are often important hosts of mineralization, thus the manto deposits encompass tabular stratiform orebodies; discordant, vein type near vertical orebodies; and high angle discordant pipe-shaped or chimney deposits hosted by breccias. Two important metallogenic environments host manto deposits in Chile, the Jurassic La Negra Formation in the Coastal Cordillera in Region II, and the Early Cretaceous volcanic belt in between Region III and Santiago. The most important mines developed on manto orebodies include Mantos Blancos, hosted by andesites of the La Negra Formation, with production, resources, and reserves of 500Mt @ 1.0% Cu (Ramirez et al., 2006) and El Soldado, hosted in Cretaceous volcanic rocks of the Lo Prado Formation, with production and reserves of 130Mt @ 1.5% Cu (Boric et al, 2002).The mineralization described for the mines in this section is not necessarily indicative of the mineralization at the Rosario property.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 31 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Chilean IOCG deposits share some chemical and morphological characteristics in common with manto deposits. In IOCG deposits andesitic volcanic strata are often important ore hosts and stratiform tabular mineralized zones may be developed adjacent to high angle mineralized structures. The IOCG ores typically contain economic quantities of both copper and gold. Hypogene specularite and/or magnetite form a significant part of the gangue mineral assemblage, and in some cases are present in sufficient concentrations that the deposits constitute iron ore. The Punta del Cobre deposit mine located 22km north-northwest of Rosario, is hosted by Late Jurassic-Early Cretaceous andesites and exhibits both high angle structural and stratigraphic controls to copper mineralization. It has been classified as an IOCG deposit (Sillitoe, 2003). Current production is approximately 10,000 tonnes per day of ore grading 1% copper (personal communication by Pucobre staff during site visit) and the mine has reported cumulative production and reserves of approximately 120Mt grading > 1% Cu and approximately 0.5 gpt Au (Marschik and Fontbote, 2001). The Candelaria copper mine is located 21km northwest of Rosario and is also considered an IOCG deposit (Sillitoe, 2003). A significant portion of ore is hosted in andesites of the Cretaceous Punta del Cobre Formation as 10 to 50m thick mantos controlled at least in part by the contact of the andesites and overlying volcaniclastic sedimentary rocks. Chalcopyrite is the only significant copper ore mineral (Ryan et al., 1996). Initial mining reserves were reported as 366Mt grading 1.08% Cu and 0.26 gpt Au (Ryan et al., 1996).The mineralization described for the mines in this section is not necessarily indicative of the mineralization at the Rosario property.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 32 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
11 MINERALIZATION
11.1 General
Numerous copper occurrences and zones of hydrothermal alteration are exposed in outcrop, small active mines, and exploration workings throughout a 3km2 area centered upon the Rosario property. Host rocks to copper mineralization include andesitic volcanic strata, andesitic porphyritic intrusions, dioritic intrusions, and intrusive and/or hydrothermal breccias. Both high angle structural and low angle stratigraphic controls are observed. Mineralized zones are characterized by alteration mineral assemblages which include albite, tourmaline, actinolite/tremolite, sericite, clay minerals, and sphene(?). The mineralized area that has been the focus of exploration and exploitation is within the Rosario concession. Other mines and exploration workings in the district include the Simonetta, Rosario, Trillador, Carmen, Tamara, and SOESMI concessions. All are part of a single large mineralizing system and share some characteristics in common, but some differences are also observed between the different areas, as described in this report. Although not all district copper showings are included in the Rosario project, the geologic observations made at these other showings have relevance to the interpretation of the geology of the Rosario project thus they are herein discussed. All of the prospects and small mines were developed on zones of outcropping copper mineralization comprised of copper carbonates, sulfates, silicates, and halides, principally malachite, chrysocolla, and chalcanthite, with or without accompanying atacamite. For simplicity of use, this supergene mineral assemblage, formed by the oxidation of primary copper sulfide minerals, will hereafter be referred to as “oxide copper” or “copper oxide” mineralization. Primary copper sulfides are present at depths of 2 to 20 meters below the present topographic surface. The most important mines and showings visited by the author are herein described.
11.2 Active Mines and Exploration Areas within Rosario Project
11.2.1Rosario Area
11.2.1.1 Rosario Decline
The Rosario mine is the principal producer in the district. Minera Barahona is currently mining 2,000 tonnes per month of sulfide copper ores grading ~2 % Cu and 0.8 gpt Au. Ores are sold to the ENAMI plant in Copiapó. Initial production was from small pits and surface cuts developed directly on outcropping zones of oxide copper mineralization but current production is exclusively of sulfide ores mined via underground methods and accessed by a spiral decline. The Rosario mine, like all mines in the district, does not have any defined mining reserves or mineral resources. The mine operates by direct mining of mineralized zones exposed in surface outcrop, and in the case of the Rosario decline, mining has continued to depths beyond those attainable in open cuts by development of an underground mine accessed by a spiral decline.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 33 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
At the Rosario underground mine, primary copper mineralization is hosted by a fine grained, equigranular dioritic intrusion and related intrusive and or hydrothermal breccias. The intrusive is present as both conformable sills and as discordant small plugs or stocks. The mineralized area is characterized by albite alteration, which locally is pervasive and intense, of both the intrusion and the host volcanic strata (Figures 11.1 and 11.2), often accompanied by tourmaline in the form of fine grained disseminated black grains, and by chlorite and actinolite/tremolite replacement of mafics. Elevated Na2O contents of as much as 10.5% (7.8% on an elemental Na basis) indicate the altered rocks were affected by Na metasomatism (Appendix A). Both mineralized and unmineralized intrusive are albite and tourmaline altered (Figure 11.3) . A fine grained, translucent, pale yellow green mineral with adamantine luster is present as disseminations in intensely albitized rock and has been tentatively identified as sphene, and comprises a minor component of the alteration mineral assemblage. In breccias zones both clasts and matrix are tourmalinized. It is not clear if these breccias are altered intrusive breccias or hydrothermal breccias. The albite alteration zone lies within a broader zone of pervasive hydrothermal alteration which is expressed as bleaching and clay-sericite alteration of the host rocks, locally accompanied by primary sulfides that form Fe-oxide color anomalies in weathered exposures.
Figure 11.1. Pervasive albitization following volcanic stratigraphy exposed in Rosario decline. White albitized unit has same orientation as host volcanic and upper contact of albitized zone is an alteration front. Sample ROS-009 was collected from this zone and yielded 37 ppm Cu and 0.001gpt and elevated Na2O content of 10.5%, indicative of Na metasomatism.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 34 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.2. Detail of alteration front of pervasive albitization affecting andesitic volcanic.
Figure 11.3. Albite-tourmaline alteration of mineralized and sterile dioritic intrusion. Rusty oxidized zone hosts disseminated chalcopyrite and is in sharp contact with white unmineralized altered diorite.
The morphology of the mineralized zones is undetermined. Stopes on the ore are unordered and indicate no preferred orientation, which is consistent with observations made at the mine, where high grade mineralized diorite was observed in razor sharp but irregular contact with altered but unmineralized diorite (Figure 11.4) . Mineralized breccias also exhibit razor sharp irregular contacts with the host diorite (Figures 11.5, 11.6, and 11.7) . Mined zones exposed are as much as 20m high with horizontal dimensions measured in the tens of meters. Since September of 2007, Minera Barahona has produced over 15,000 tonnes of sulfide ores from the Rosario decline with average grade of 2.05% Cu and 0.79 gpt Au (Appendix B). Ores have been exploited over a vertical interval of greater than 40m. The author's independent sampling yielded 0.86% Cu and 0.23 gpt Au at the deepest level of the Rosario decline (Figure 11.8, sample ROS-001, Table 16.1, and Appendix A), indicating that mineralization continues to at least the deepest level currently developed.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 35 of 89 |
Resource Geosciences de Mexico SA de CV | |
�� 43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.4. Sharp contact (dashed red line) between mineralized and unmineralized diorite exposed in Rosario pit. White rock is albitized unmineralized diorite, rusty weathering rock with some copper staining is mineralized diorite containing several percent disseminated chalcopyrite.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 36 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.5. Razor sharp irregular contact between mineralized breccia and unmineralized but intensely altered diorite, upper adit, Rosario mine. Sample ROS-012 is of unmineralized diorite from this pillar and assayed 0.10 % Cu and 0.29 gpt Au whereas sample ROS-013 collected from the underlying mineralized breccia assayed 4.36% Cu and 1.01 gpt Au.
Figure 11.6. Detail of contact between mineralized breccias and diorite, upper adit near portal, Rosario mine.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 37 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.7. Detail of mineralized angular breccias, upper workings portal, Rosario mine. Sample ROS-013 was collected from the breccia at this site and assayed 4.36% Cu and 1.01 gpt Au.
The ore mineral assemblage consists of chalcopyrite with or without subordinate bornite. Pyrite is sparsely present as a gangue mineral. The chalcopyrite, and bornite when present, occur as fine grains evenly disseminated throughout the host rock. Veinlets of any scale are absent, and no fracture or microfracture control was observed. In some cases the copper sulfides were clearly observed to be replacing chloritized mafic minerals. Molybdenum minerals were not observed in hand specimens, but molybdenum is present in the Cu-Au mineralized zones in amounts of as much as 0.04%, suggesting the presence of molybdenite. Multielement geochemical data for ore and altered wallrock samples is presented as Appendix A and sample descriptions are included in Table 16.1.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 38 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.8. CrosssectionthroughRosario minedecline.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 39 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
11.2.1.2 Manto Pit
The manto pit is located 850m west-southwest of the Rosario decline and was developed as a series of open cuts on oxidized zones of primary sulfide copper mineralization. The oxidized mineral assemblage consists of malachite, chrysocolla, chalcanthite, and possibly atacamite. In contrast to the Rosario decline, the main host rock appears to be the southeast dipping andesitic volcanic strata, although the intense alteration may be masking the presence of conformable sills of similar composition. The deepest portions of the surface cuts expose primary sulfide mineralization, present as disseminated chalcopyrite in the andesitic volcanic host. A two meter vertical representative sample, ROS-014, was collected across the lowermost exposed portion of the zone where it hosts disseminated chalcopyrite. Sample ROS-014 yielded 1.79% Cu and 0.01 gpt Au. The mineralized zone appears to follow the primary volcanic stratigraphy and dips 45o to the southeast (Figure 11.9), and is coincident with a planar fault zone interpreted to be a result of bedding plane slip. As exposed in the surface cuts, the mineralized zone is 12m thick, and possible greater, but mineralization intensity varies across the exposed thickness. The mineralized zone lies within an extensive zone of pervasive hydrothermal alteration manifested by bleaching and clay-sericite alteration of the andesitic volcanics, accompanied by pyritization of the footwall to the mineralized zone, which is well expressed as an Fe-oxide color anomaly at surface. Some of the pyritic zone appears to be composed of a pyritic dioritic sill intruded into the andesite sequence. Copper oxide showings in pervasively bleached and sericite-clay altered volcanics located northeast of the main manto pit are interpreted to be part of the same mineralized zone, and if so, indicate a mineralized strike length of 175m. Sample ROS-015, a 2m representative sample over a 4m2 area, was collected from an open cut on a copper showing northeast of the Manto pit, and yielded 3.85% Cu and 0.08 gpt Au. Copper oxide showings beyond the hill crest east of the manto pits indicate that at least a 115m stratigraphic thickness of the andesites has at least been locally mineralized, assuming that the dip projection of the volcanic strata is constant to the southeast and that no structural offsets are present between the copper showings.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 40 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.9. Stratiform conformable mineralized zone exposed in Manto zone, dipping 45 degrees southeast.
11.2.1.3 Tamara
Copper mines and prospects visited in the Tamara concession are hosted in coarse grained, plagioclase phenocrystic, porphyritic rocks, some of which are porphyritic–phaneritic and appear to be intrusive, whereas others are porphyritic-aphanitic and may be extrusive or of shallow subvolcanic origin (Figure 11.10) . Copper mineralization is also present in andesitic volcanics near the contact with the porphyritic unit. In contrast to other mineralized occurrences in the area, at Tamara a clear structural control is observed for some mineralized zones. A north-northeast striking vertical fracture zone controls copper mineralization over at least a 200m strike length as exposed in various workings and prospects in the northern portion of the concession (Figure 11.11) . The northeast structure is interpreted to control the distribution of primary copper sulfides, but oxidation of them results in malachite and chrysocolla occurring as coatings on fractures of diverse orientations, a reflection of local small scale remobilization and precipitation of copper. Primary copper sulfide mineralization is exposed in both the coarse porphyritic unit and host rock andesite where it occurs as disseminations in the course porphyry and as vug filling clots in the andesite (Figure 11.12) . A poorly defined breccia texture is developed in the andesite, possible a result of autoclastic brecciation at a flow top, or possibly a result of variable pervasive bleaching and albitization of the host rock (Figure 11.13) . The contact between the coarse grained porphyry and the underlying andesite is conformable with the regional dip of the volcanic strata, and this porphyry may be an extrusive volcanic (Figure 11.14) . The copper mineralized zone follows the contact and the volcanic stratigraphy.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 41 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.10. Coarse grained, plagioclase phenocrystic, porphyritic-phaneritic, dioritic intrusive exposed in surface cut at waypoint 27.
Figure 11.11. Looking NA020 down strike of 80SE dipping planar fractures that control trend of small mines and prospects in oxidized copper mineralization, at waypoint 107. Note that
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 42 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
high angle NE fractures control distribution of copper showings, but at any particular prospect copper mineralization is present as coatings on fractures of diverse orientations.
Figure 11.12. Vug filling clots of chalcopyrite in andesite breccias, possibly an autoclastic flow top breccia, at waypoint 25.
Figure 11.13. Breccia texture in mineralized andesite at waypoint 25.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 43 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.14. Gently southeast dipping contact between coarse grained porphyry and underlying andesite. Note stoping is concentrated in the underlying andesite, but both units are copper mineralized.
11.2.1.4 Other Copper Occurrences
Numerous small cuts and prospects are developed on oxide copper showings throughout the Rosario claim. In most cases, no clear structural or stratigraphic control to copper distribution is noted. In most prospects, copper oxides are present as fracture coatings and as pervasive stains or impregnations. The former result from precipitation of transported copper and the host rock to the fracture coating copper oxides may not have been a host to primary mineralization, however the pervasive impregnations of copper oxides clearly correlate with the former presence of disseminated copper sulfide and result from in-situ oxidation.
11.3 Related Mines and Prospects Outside of Rosario Project
11.3.1Simonetta
The Simonetta area is adjacent to and east of the Rosario area. The diorite intrusion and intense alteration observed at Rosario extends onto the Simonetta ground where tourmalinization and pervasive bleaching of diorite and andesite country rock was observed (Figures 9.2 and Figure 11.15) . Exploration of surface copper showings with a tracked excavator has revealed both irregular zones of oxidized copper mineralization and zones of primary chalcopyrite at shallow depths. The control of copper distribution is unclear. Transported supergene copper mineralization occurs as coatings on fractures and fault planes of diverse orientations, but these structures appear to be local controls of transported copper and do not necessarily reflect the controls of the hypogene copper sulfide distribution.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 44 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.15. Tourmalinized andesitic volcanic exposed in outcrop on Simonetta claim. Irregular black tourmaline replacement of host rock yield a mottled, pseudo-breccia appearance.
During field review of the Simonetta area the author noted an uncapped and uncased abandoned drillhole, apparently an exploration drillhole targeting a zone of copper oxide mineralization exposed in a small surface cut. The entity responsible for this drilling and the results are unknown to the author.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 45 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
11.3.2Carmen
The Carmen workings are hosted within a large area of bleached, sericite-clay altered andesitic volcanic and are developed in zones of fracture coating and pervasive malachite-chrysocolla mineralization. A lessee is currently producing oxide copper ores from small pits. A tunnel of greater than 100 m length exposes primary sulfide mineralization comprised of disseminated chalcopyrite hosted in albitized andesite and/or a fine grained dioritic intrusion.
11.3.3Trillador
The claimant of the Trillador concession is currently producing oxidized copper ores from small surface cuts and pits at the property. The largest pit is developed entirely within a coarse grained, plagioclase phenocrystic, porphyritic-phaneritic, dioritic intrusive which is pervasively malachite stained and impregnated, consistent with in-situ oxidation of primary chalcopyrite. Other workings are developed in dark, fine grained, magnetic, plagioclase phenocrystic, weakly porphyritic andesite where malachite and chrysocolla coat fractures. Primary copper sulfide mineralization is exposed in a decline developed in an arroyo in the north portion of the claim, where it exposes fine grained, magnetic, plagioclase phenocrystic, weakly porphyritic andesite containing disseminated course clots of chalcopyrite. The control on the chalcopyrite distribution is not evident. The claimant reports that shallow drilling by ENAMI within some of the oxide pits intersected primary sulfide mineralization at depths of less than 15 meters. Neither drillcore, nor original drill logs nor original assay certificates were available for review and the reported intercepts have not been verified. During field review of the Trillador concession Gray noted several drillhole collar monuments within a small open pit.
11.3.4SOESMI
The SOESMI claims cover the westernmost known copper occurrences in the district. As at the adjacent Tamara concession, the coarse grained plagioclase phenocrystic porphyry is an important host of copper mineralization at SOESMI. Numerous surface cuts and pits are developed in zones where copper oxides are abundant. In some cases the copper oxides are present only as fracture coatings and the host rock is not significantly altered nor does it show evidence of ever having hosted primary sulfide. In these cases the oxide copper is interpreted to be purely exotic transported copper (Figure 11.16) . In cases where the host rock is pervasively and penetratively stained by copper oxides, in-situ oxidation of primary copper sulfides is implied.
Precipitation of supergene copper oxides was at least in part controlled by lithology. In several instances gaudy fracture coatings of copper oxides are entirely restricted to fractures in fine grained andesitic dikes that crosscut the coarse grained plagioclase porphyry. Fractures are copper oxide encrusted when in the fine grained andesite but barren when in porphyry (Figure 11.17) . Xenoliths of andesite within the porphyry exhibit the same control on copper oxide precipitation. In these cases it is clear that the observed copper oxides are not the result of in situ oxidation of copper sulfide minerals and the source of the copper is unknown.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 46 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
The claimant of the SOESMI concessions reported that Sociedad Punta del Cobre (Pucobre) optioned and explored the SOESMI concessions in 2009 and drilled 10 shallow diamond core holes totaling 916m, in and around the surface pits. The claimant of the SOESMI concession provided to the author a photocopy of a report that he stated was delivered to him by Pucobre at the termination of their drill program on the property. The most significant result reported was a 12m intercept of sulfide mineralization containing 4.98% Cu from 76 to 88m depth in a vertical drillhole. Neither drill logs, drill core, nor original assay certificates for this hole were available for review and this reported intercept has not been verified. The results reported by the SOESMI claimant should be regarded as historical in nature, are not CSA NI43-101 compliant, and should not be used for economic assessments of the project. During field review of the SOESMI concession Gray noted in the field 10 drillhole collars and monuments whose locations are the same as those listed in the
Figure 11.16. Copper oxides present as exotic, transported copper precipitated as fracture coatings, Rajo Norte pit, SOESMI concession.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 47 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 11.17. Selective deposition of copper oxides controlled by lithology. Fractures in fine grained andesite dike selectively coated with copper oxides, SOESMI concession, working at waypoint 19.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 48 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
12 EXPLORATION
12.1 General
Exploration completed to date at the project consists predominantly of direct mining of exposed mineralized zones by the mining concession owners or lessees. The claimants of the district utilize tracked excavators and bulldozers to expose bedrock in areas where copper oxide staining is observed at surface.
Shallow exploration drillholes are reported to have been completed within or immediately adjacent to some of the small oxide copper pits at both the SOESMI and Trillador properties as described in Items 8, 11.3.1, 11.3.3, and 11.3.4 of this report. Neither Bridgeport, RGM, or Gray have access to original data for these drill campaigns.
During his reconnaissance, Gray observed in the field IP electrode stations at the Simonetta and Rosario concessions. The owner of the Rosario concession reported that Freeport completed IP studies in the area prior to making an unsuccessful offer to option the Rosario project, but the results of this survey are not available to the author or the claim owners.
Bridgeport Ventures exploration of the property commenced in October 2009 when M Gray conducted reconnaissance studies of the district geology and the operating mines.
12.2 Geologic Mapping and Geochemical/Mineralogical Sampling
Reconnaissance mapping was completed over a 6 day period in October 2009, using 1:50,000 scale topographic maps and public domain satellite images as a mapping base. A Garmin GPS Map60CSX was used for survey control. All known small mines and significant copper showings in the district were reviewed, but efforts were concentrated on the Rosario concession group.
Concurrent with the reconnaissance mapping, M Gray collected representative rock chip samples of specific mineralized and hydrothermally altered zones. Sample descriptions and analytical results for ore metals are presented in Item 15 of this report and complete multielement assay data is included as Appendix A. The objective of the sampling was to determine the metal contents of particular alteration mineral associations and to verify the ranges of metal contents present in the orebodies being exploited at the Rosario mine.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 49 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
13 DRILLING
No drilling campaigns have been conducted on the property by Bridgeport Ventures.
Previous operators are reported to have conducted exploration drilling in the SOESMI, Trillador, and Simonetta concessions, as discussed in Item 8, 11.3.1, 11.3.3, and 11.3.4 of this report. Drillcore, original drillhole logs, and original assay certificates for these historical drill programs are not available to the author nor to Bridgeport Ventures.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 50 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
14 SAMPLING METHOD AND APPROACH
14.1 Sampling Method, Nature, and Spacing
14.1.1Surface Rock Chip Samples
Concurrent with reconnaissance review of the main Rosario sulfide and oxide workings, M Gray collected representative rock chip samples of distinct mineralized and altered zones. Samples were collected from rock exposed in underground mine workings and open cuts. The objective of the sampling was to determine copper contents and geochemical characteristics of particular zones of interest, and to verify the produced grades reported by the underlying claimant of the Rosario concessions. All samples were collected by the author, and remained exclusively in the possession of the author until such time that they were sent by courier to the ALS Chemex laboratory in La Serena, Chile.
Samples collected were representative grab samples, 1.5 to 2m in length, oriented perpendicular to the structural fabric of the feature of interest being sampled. All samples were collected by hand, using hardened steel geological hammers. Samples were placed in plastic sample bags and sealed. Sample weights varied from 1.5 to 2.0 kg. Sample spacing was variable, and was a function of exposure of mineralized or altered rock. Sample locations were marked in the field on the outcrop or mine working face. Sample descriptions, location data, and multi-element assay data were captured in digital format and assay certificates are included as Appendix A of this report.
14.2 Recovery Factors
No factors were identified that materially impact the accuracy or reliability of the sample results. Surface rock chip samples were collected manually and recovery was 100%.
14.3 Sample Quality and Representativity
In the opinion of the author, samples collected are of high quality and representative of the mineralized areas being evaluated.
Surface sample locations were selected to be representative of the geologic feature being investigated. Representative sample was collected by chipping and collecting rock along a line perpendicular to the orientation of the structure or feature being sampled. Industry standard methods and best professional judgment were used in collection of the rock chip samples, however, by nature, manually collected rock chip samples are of lesser quality than mechanically collected continuous samples (i.e. cored or cut samples). The surface rock chip samples are of sufficient quality and confidence to be used for preliminary assessments of the project’s mineral potential
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 51 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
but were not designed to provide detailed or reliable information of true mineralized dimensions and grades.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 52 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
15 SAMPLE PREPARATION, ANALYSES, AND SECURITY
It is the author’s opinion that sample preparation, security, and analytical procedures used were adequate to insure the integrity and reliability of the sample data base.
15.1 Personnel
Surface and underground rock chip samples were collected exclusively by Matthew Gray. Employees, officers, directors, or associates of Bridgeport were not involved in sample collection or preparation.
15.2 Bridgeport Resources Sampling Program
15.2.1Sample Security/Chain of Custody
Geologic descriptions of the sample, including nature of the sample, length of sample, lithology, alteration, and mineralization, were captured in geologic field books. Samples were sealed in plastic sample bags with zip closures. Samples were stored in the author’s locked vehicle until such time that they were delivered directly by the author to a commercial cargo carrier for shipment to the ALS Chemex laboratory in La Serena, Chile.
15.2.2Sample Preparation by ALS Chemex
Analytical work was performed by ALS Chemex, an ISO 9001:2000 certified international provider of analytical services to mining and exploration companies. Sample preparation and analyses was conducted at the ALS Chemex facility in La Serena (Coquimbo), Chile.
ALS Chemex reports the following preparation method: Each sample was dried and the entire sample was crushed to better than 70% passing a 2 mm (Tyler 10 mesh) screen. Using a riffle splitter, a split of up to 250 grams was taken and pulverized to better than 85% passing a 75 micron (Tyler 200 mesh) screen.
15.2.3Analytical Techniques used by ALS Chemex
Gold content was first analyzed utilizing standard fire assay fusion, followed by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICPAES – ALS Chemex procedure Au ICP21), with a detection limit of 0.001 ppm and upper limit of 10 ppm.
All other elements listed below were analyzed utilizing four acid digestion ( HF-HNO3-HClO4acid digestion and HCl leach) and Inductively Coupled Plasma -Atomic Emission Spectroscopy methods (ALS Chemex procedure ME-ICP61). The method and the detection and upper limits for each element are described in Table 15.1 below.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 53 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Table 15.1. Element concentrations analyzed and analytical limits.
Detection | Upper | |||
Element | Symbol | Limit | Limit | |
Aluminum | Al | 0.01% | 25 % | |
Antimony | Sb | 5 ppm | 1 % | |
Arsenic | As | 5 ppm | 1 % | |
* | Barium | Ba | 10 ppm | 1 % |
Beryllium | Be | 0.5 ppm | 0.01 % | |
Bismuth | Bi | 2 ppm | 1 % | |
Cadmium | Cd | 0.5 ppm | 0.05 % | |
Calcium | Ca | 0.01% | 25 % | |
* | Chromium | Cr | 1 ppm | 1 % |
Cobalt | Co | 1 ppm | 1 % | |
Copper | Cu | 1 ppm | 1 % | |
Iron | Fe | 0.01% | 25 % | |
Lead | Pb | 2 ppm | 1 % | |
Magnesium | Mg | 0.01% | 15 % | |
Manganese | Mn | 5 ppm | 1 % | |
Molybdenum | Mo | 1 ppm | 1 % | |
Nickel | Ni | 1 ppm | 1 % | |
Phosphorus | P | 10 ppm | 1 % | |
Potassium | K | 0.01% | 10 % | |
Silver | Ag | 0.5 ppm | 0.01 % | |
Sodium | Na | 0.01% | 10 % | |
Strontium | Sr | 1 ppm | 1 % | |
Sulfur | S | 0.01 % | 10 % | |
* | Titanium | Ti | 0.01% | 10 % |
* | Tungsten | W | 10 ppm | 1 % |
Vanadium | V | 1 ppm | 1% | |
Zinc | Zn | 2 ppm | 1 % |
*Elements for which the digestion is possibly incomplete.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 54 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
16 DATA VERIFICATION
16.1 Prior Exploration Campaigns
No data is available from exploration programs conducted prior to Bridgeport’s involvement with the project, except for a photocopy of a report attributed to Pucobre summarizing drilling at the SOESMI claims as discussed in Item 8 of this report. The Pucobre drill collar monuments were located and confirmed in the field, but the drillcore was not available for review or re-assay thus assay data for the drillholes was not confirmed and the results reported by the SOESMI claimant should be regarded as historical in nature, are not CSA NI43-101 compliant, and should not be used for economic assessments of the project.
Bridgeport has not yet commenced an exploration program at the project beyond the work completed as part of this Technical Report, thus there is no prior data to be verified.
16.2 Production Data
Mineria y Transporte Barahona provided copies of ENAMI ore purchase receipts documenting production and grade of material shipped from the Rosario mine to the ENAMI mill in Copiapó. The author reviewed the ENAMI sales receipts which confirmed that Barahona’s verbal representations of production sulfide ores at grades of~2%Cu and >0.5 gpt Au were accurate. The receipts indicate that in the 31 month period from December 2006 to June 2009, Minera Barahona produced:
- | 59,328 tonnes of oxide ores with average grade of 1.52% Cu | |
- | 15,110 tonnes of sulfide ores with average grade of 2.05% Cu, 3.3 gpt Ag, and 0.79 gpt Au |
A tabulation of reported ore sales to ENAMI is included as Appendix B of this report. The average production rate of both oxide and sulfide ores, over the 31 month period was 2,401 tonnes per month, and the first semester 2009 production rate of sulfide ores was 1,920 tonnes per month. The author was present to observe the daily production from the Rosario decline during the period spent on site in October 2009 (Figure 16.1) and a random grab of ore being shipped to ENAMI on 5 October was collected for assay, sample ROS-006. This sampled assayed 3.39% Cu and 0.78 gpt Au, consistent with the representations made by Barahona. The author collected 15 samples from the Rosario mine workings, both underground and surface cuts, as detailed in Table 16.1 and Appendix A of this report. Samples collected from ore zones currently being mined or previously mined yielded copper contents of 0.67 to 4.36% Cu with gold contents ranging from 0.30 to 1.01 gpt Au, consistent with the grades indicated on the ENAMI sales receipts.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 55 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 16.1. Loading of sulfide ore from Rosario mine for shipment to ENAMI.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 56 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Table 16.1. Descriptions and assays, samples collected from Rosario concession.
Sample | Location | Description | Cu % | Au ppm | Ag ppm |
ROS-001 | Rosario mine, 1.5m vertical sample of rib | Variably altered plagioclase phenocrystic rock, in some specimens wetted surface reveals texture of fine grained plagioclase in dark aphanitic groundmass, in others plagioclase outlines are barely discernable and rock is light grey, creamy textured and indurated but not silicified. Under hand lens some samples appear to be made of coalescing blebs of white plagioclase - albite alteration? Rock contains several percent very fine grained disseminated chalcopyrite and lesser pyrite. | 0.86 | 0.23 | 0.6 |
ROS-002 | Rosario mine, 1.5m vertical sample of rib | Light green-grey, fine-medium grained equigranular rock, not magnetic, looks like composed dominantly of granular white intergrown plagioclase with abundant very fine grained black flecks (tourmaline?). Indurated but not silicified - albite alteration? Matrix supported, rounded, monolithic breccia texture - intrusive breccia? Contained a few percent disseminated very fine grained chalcopyrite and lesser pyrite. | 1.32 | 0.67 | <0.5 |
ROS-003 | Rosario mine, 2 m vertical sample of rib | Medium grey, fine grained plagioclase phyric volcanic rock, can only occasionally discern a plagioclase outline in a dense grey groundmass, locally slightly siliceous. Texturally destructive pervasive alteration to a massive dense creamy rock, elsewhere to a granular texture of white plagioclase intergrowths with creamy dense texture. Where plagioclase laths are visible they are fine to medium grained. Chloritic flecks throughout the rock, very fine grained. Contains pyrite and lesser chalcopyrite as very fine grained disseminations, looks like no more than 1% chalcopyrite - most sulfide appears to be pyrite. On wetted surface some samples have a fine grained felted diorite texture, similar to diorite seen at surface. Not magnetic. | 0.04 | 0.01 | <0.5 |
ROS-004 | Rosario mine, 2 m vertical sample of rib | Silicified sulfidic pervasively altered rock comprised of dense creamy light grey to pale reddish grey silica with abundant disseminated very fine grained chalcopyrite and lesser pyrite, several percent total sulfide. Disseminated chloritic flecks. Locally a granular texture and in some pieces plagioclase ghost outlines discernable probable protolith was an intrusive or porphyritic volcanic. | 0.98 | 0.30 | <0.5 |
ROS-005 | Rosario mine, 2 m representative vertical sample of rib | Medium grey to white pervasively altered rock, looks like it had a fine grained equigranular texture that now is mostly obliterated and rock composed of light colored, dense creamy to granular material, scratches with blade but is quite hard - pervasive albite alteration? Contains several percent disseminated black and chloritic flecks and several percent fine grained disseminated chalcopyrite and minor pyrite. Protolith probably an intrusive or volcanic. | 2.28 | 0.86 | <0.5 |
ROS-006 | Rosario mine, stockpile grab | Grab of stockpiled ore being sent to ENAMI on 2009 Oct 5. White, plagioclase rich, fine grained equigranular rock composed of granular and coalescing white plagioclase (no distinct laths or phenocrysts) with abundant fine grained dark flecks, locally columnar appearance - tourmaline? Contains several percent platy disseminated chalcopyrite. Rock is not silicified. Intensely altered intrusive? | 3.39 | 0.78 | <0.5 |
ROS-007 | Rosario mine, 1.5m vertical sample of rib | Medium grey to almost white, pervasively altered but unmineralized rock composed of creamy dense light grey siliceous groundmass with occasional glassy striated plagioclase cleavage faces visible. NO mafics. Contains disseminated epidote and lesser chlorite. Some very fine grained adamantine crystals of sphene (? do not see clear crystal shape to confirm, possibly is apatite o garnet?). No sulfides observed. | 0.01 | 0.00 | <0.5 |
ROS-008 | Rosario mine, 1.5m vertical sample of rib | Medium grey, fine to medium grained crowded andesite porphyry, >50% phenocrysts of fine to medium grained white plagioclase euhedra in dark purple, grey, and green groundmass with scattered epidote and chlorite altered mafics (hornblende?). No sulfide noted. Possible very minor pervasive silicification. Rare hairline silica microveinlets with epidote selvages. | 0.00 | 0.00 | <0.5 |
ROS-009 | Rosario mine, 1.5m vertical sample of rib | White, fine to medium grained, pervasively altered equigranular intrusive. Massive white granular feldspar with evenly distributed dark green and light green altered mafics (hornblende?) and rare fine grained sphene (?). No sulfide. No preserved mafics. Minor pervasive silicification. Albite alteration? | 0.00 | 0.00 | <0.5 |
ROS-010 | Rosario mine, 1.5m vertical sample of rib | Pervasively altered, fine to medium grained equigranular intrusive, with texture similar to ROS_009 but with several percent disseminated platy chalcopyrite and lesser pyrite. Locally with pervasive tourmalinization consisting of clots and disseminations of very fine grained black mineral, locally columnar, tentatively identified as tourmaline. NO relict mafic present but some scattered chloritic flecks may be after mafics. Rock is indurated but not silicified. | 1.52 | 0.56 | <0.5 |
ROS-011 | Rosario mine, grab of stope walls, collected over 20m combined horizontal length | Pervasively altered, fine grained, locally siliceous rock comprised of plagioclase with dense and creamy texture, with disseminated chlorite and tourmaline and abundant very fine grained disseminated chalcopyrite and lesser pyrite, up to several percent. plagioclase equigranular intrusive, with texture similar to ROS_009 but with several percent disseminated platy chalcopyrite and lesser pyrite. Locally with pervasive tourmalinization consisting of clots and disseminations of very fine grained black mineral, locally columnar, tentatively identified as tourmaline. No relict mafic present but some scattered chloritic flecks may be after mafics. Rock is indurated but not silicified. | 0.67 | 0.16 | <0.5 |
ROS-012 | Rosario mine, upper adit, sample over 1m vertical and 2m horizontal on pillar, collected immediately above sample ROS-013 | Tourmalinized, albitized intrusive (?). White to grey, salt and pepper with white plagioclase and variable amounts of disseminated fine grained black mineral, locally columnar, provisionally identified as tourmaline. Rock is not silicified, everywhere tested can be scratched with blade. Contains occasional fine grained translucent adamantine light green-yellow crystals - sphene? Intense texturally destructive alteration but no sulfides noted. | 0.10 | 0.29 | <0.5 |
ROS-013 | Rosario mine, upper adit, sample over 1m vertical and 2m horizontal on pillar, collected immediately below sample ROS-012 | Tourmalinized hydrothermal or intrusive breccia. White, plagioclase phenocryst rich angular clasts, 3 to 50mm diameter, in white albite-tourmaline matrix. Both clasts and matrix contain several percent disseminated very fine grained chalcopyrite and lesser pyrite. Matrix supported breccia. Both clasts and matrix pervasively altered and indurated, but not silicified. Pervasive albitization? | 4.36 | 1.01 | 0.7 |
ROS-014 | Manto Pit, 2m vertical sample of lowermost portion of mineralized zone exposed in pit | Very fine to fine grained bleached and Cu-ox stained volcanic. Occasionally discernable plagioclase outline but rock is mostly a fine grained, relatively soft (easily scratched with blade) rock with volcanic texture impregnated by green and blue Cu stains and also with Cu-ox on fractures. Some dark Fe-ox after sulfide disseminated in rock but no fresh sulfide seen. Rock is an altered fine grained andesitic volcanic. | 1.79 | 0.01 | <0.5 |
ROS-015 | HW to Manto Pit, sample over 2m vertical and 2m horizontal from small pit above and NE of Manto pit. | Very fine grained massive volcanic, pervasively argillized and/or sericitized. Very soft, easily scratched. Bleached white -no relict mafics. Can occasionally discern a plagioclase outline. Pervasive green Cu-ox staining and minor disseminated Fe-oxide after sulfide. Rock is a texturally destroyed, pervasively altered, andesitic volcanic. | 3.85 | 0.08 | <0.5 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 57 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
17 ADJACENT PROPERTIES
There are no producing properties or exploration properties immediately adjacent to Rosario that are not discussed in Item 11 of this report, but mining and exploration activity was evident in the region. The La Verde copper mine is located approximately 4km north-northwest of Rosario. It was not visited by the author and the ownership and production data are unknown. Recent trenching and construction of drill pads was observed over a large area located 5km north-northeast of Rosario. The company or companies conducting the exploration are unknown to the author.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 58 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
18 METALLURGICAL TESTING
No metallurgical studies have been conducted by Bridgeport Ventures. The current operators of the mines in the district sell their production directly to ENAMI where sulfide ores are processed via conventional milling and floatation methods. Oxide ores are processed via SX-EW methods. Recoveries obtained by ENAMI are unknown to the author.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 59 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
19 MINERAL RESOURCE ESTIMATE
Data is insufficient to permit estimation of a mineral resource.
None of the operating mines in the district, including the Rosario mine, have mining reserves or mineral resources. These mines operate by direct mining of mineralized material exposed at surface.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 60 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
20 OTHER RELEVANT DATA AND INFORMATION
To the best of the author's knowledge, all relevant data has been presented in this report.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 61 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
21 INTERPRETATION AND CONCLUSIONS
The Rosario prospect is part of a significant Cu-Au mineralized system that merits drill testing. The system as currently exposed within the Rosario project is at least 1.4 square km in extent, as defined by distribution of copper showings and hydrothermal alteration. The most intense hydrothermal alteration and the most significant mineralized zones thus far discovered in the district lie within the Rosario concessions. Copper mineralization in the district is present as mantos, mineralized intrusions, mineralized breccias, and as mineralized high angle structures.
Copper is present as mantos in the sense that the copper distribution follows the primary volcanic stratification. The thickest manto zones currently known are only 12-15m thick but manto type mineralization appears to be present over at least a 115m, and perhaps as much as a 300m stratigraphic thickness of the volcanic sequence, thus lending credence to a hypothesis that stacked mantos may be discovered.
Separate from the mantos, Cu mineralization is hosted by a dioritic intrusion, and intrusive and/or hydrothermal breccias. The Rosario mine decline into the 2% Cu sulfide zone is developed in such a zone. The morphology and dimensions of the copper mineralization exposed in the decline are irregular and not understood, but even if the mineralized zone at the Rosario decline is small, it's presence lends support for a significant target at the project comprised of a concealed mineralized intrusive and related breccias.
Copper mineralization also occurs as structurally controlled, high angle, tabular or vein-like zones. The structurally controlled mineralized zones currently exposed do not have dimensions of economic significance, however mineralized structural zones are probably related to the manto mineralization and they may control distribution of the latter. Structural intersections and intersections of mineralized faults and favorable volcanic strata may be important exploration targets at the project.
Many, but not all, oxide (actually oxide, carbonate, sulfate, silicate and halide) Cu occurrences in the district are developed from in-situ oxidation of chalcopyrite, thus many of the small prospects and mines on copper oxide showings are indicating the shallowly concealed presence of primary copper mineralization. Sulfide mineralization is encountered at shallow depths (<20m from surface), thus the project is not prospective to host significant tonnages in an oxide copper deposit. The system is pyrite poor, which means the project is not prospective for an enriched chalcocite zone. For the aforementioned reasons, the project is not prospective for a leachable (SX-EW) target.
Primary mineralization is comprised of altered andesitic volcanic rocks, dioritic intrusive rocks, and related intrusive and hydrothermal breccias that host disseminated chalcopyrite, bornite, and subordinate pyrite. Hydrothermal alteration minerals associated with copper mineralization include albite, tourmaline, actinolite/tremolite, sphene, sericite and/or clay minerals. In contrast to many hydrothermal deposits, quartz veining at any scale is not present at Rosario. The distribution of primary sulfide minerals is truly disseminated, lacking any visible microfracture or veinlet control.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 62 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
The system shares some common traits with IOCG (iron oxide copper gold) deposits including Na-metasomatism, alteration mineral associations, and ore mineralogy dominated by chalcopyrite. The deposit is located within a productive IOCG mineral belt, however hypogene iron oxides (specularite and/or magnetite), which are an essential component of IOCG deposits, were not observed to be present. The Rosario system also has traits in common with Chilean manto type deposits including andesitic host rocks, stratigraphic control to metal distribution, association with dioritic intrusions and hydrothermal breccias, and albitic alteration, however the Rosario system's elevated gold content contrasts sharply with typical Chilean manto deposits that are gold deficient, Cu-Ag systems. The system is classified by the author as intrusive related, but not a porphyry system. The system lacks phyllic (quartz-sericite-pyrite) alteration zones, potassic alteration zones, and stockwork veinlets, all of which are characteristic of porphyry systems.
The concessions have not been evaluated in their entirety, and known zones of hydrothermal alteration have thus far not been mapped or sampled, thus the project remains highly prospective for discovery of additional exploration targets. Continued mapping and geochemical sampling of the concessions is required to define the number and quality of the new exploration targets contained therein.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 63 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
22 RECOMMENDATIONS
22.1 Target Concepts
Exploration results for the Rosario project clearly demonstrate that it is prospective for bulk mineable copper-gold deposits. Numerous mineralized occurrences have been identified, but existing data is insufficient to determine the extent and metal content of these zones. Existing data validates at least two important target concepts for the project: 1) Stacked mantos, and 2) Mineralized intrusive and related breccias.
22.1.1Stacked Manto Targets
Andesite hosted copper mineralization that appears to be stratiform is exposed in the Manto pit at the Rosario concession. Similar copper mineralization is seen in small prospects and volcanic rocks in the hangingwall of the main mineralized zone at the Manto pit. The exposed thickness of the mineralized manto at the Manto pit is as much as 12m, but evidence suggests that a much thicker zone of andesite strata may be a favorable host of manto copper mineralization. The morphology of the hangingwall copper occurrences above the Manto pit is unclear, but no structural control to these occurrences was observed and they are interpreted to be stratiform conformable zones, similar to that seen in the Manto pit. If this is true and if the mineralized zone at the Manto pit is projected along the dip of the strata to a point beneath the hangingwall occurrences, then a simple stratigraphic reconstruction, assuming no structural offsets between the Manto pit and the hangingwall occurrences, indicates that copper mineralization occurs within a 115m stratigraphic thickness of the andesite sequence. If copper occurrences exposed in workings further south of the Manto pits are likewise related to stratigraphically conformable zones, and structural offset is not present, then copper mineralized mantos are demonstrated to be present within a 300m stratigraphic thickness of the andesites, and a stacked manto concept is valid. The stacked manto target comprises gently dipping tabular mineralized mantos that overlay one another, separated by variable thicknesses of unmineralized or weakly mineralized rock, as exemplified by the Buena Esperanza deposit near Antofogasta, Region II, Chile, and the Candelaria mine, located 21km northwest of the Rosario project.
At the Buena Esperanza mine, twenty eight individual mantos, ranging from 2 to 25m thick, were developed in a 300m thick sequence of Jurassic andesite (Ruiz, 1971). Observations at the Rosario project support the viability of the stacked manto concept in a thick sequence of andesites. The entire stratigraphic thickness is not postulated to be mineralized, but mineralized manto zones may overlay one another, separated by variable thicknesses of unmineralized or weakly mineralized rock. Drill testing is required to confirm the presence of mantos, their thicknesses and grades, and amount of intervening unmineralized rock between them.The mineralization described for the mines in this section is not necessarily indicative of the mineralization at the Rosario property.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 64 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
At the Candelaria Cu-Au deposit, a significant portion of ore is hosted in andesitic volcanic strata of the Cretaceous Punta del Cobre Formation, where stratiform tabular mineralized zones developed adjacent to high angle mineralized structures. Mineralized mantos are present as 10 to 50m thick tabular bodies that overlie one another, separated from each other by various thicknesses of unmineralized rock. Development of the mantos is controlled at least in part by the contact of the andesites and overlying volcaniclastic sedimentary rocks. Mineralized high angle structures are interpreted to have been conduits for hydrothermal fluids that generated the mantos. When distal from the high angle mineralized structures, mantos are present as discrete tabular layers, however when proximal to the high angle structures, the mantos coalesce to form larger orebodies (Ryan et al., 1996).
The mineralization described for the mines in this section is not necessarily indicative of the mineralization at the Rosario property.
22.1.2Intrusive and Breccia Hosted Targets
The Rosario mine produces sulfide ores containing 2% Cu and 0.78 gpt Au. Production is from mineralized zones developed in a diorite intrusion and related breccias, hosted within a large zone of pervasive hydrothermal alteration that is manifested by broad zones of bleaching and sericite-clay alteration. Restrictive zones of albite and tourmaline alteration appear to be closely spatially related to mineralized zones. The intensity of the alteration and the alteration mineral assemblage, particularly tourmaline, are permissive of a genetic relationship to a magmatic system. Similarly the angular breccias, both intrusive and explosive hydrothermal in origin, suggest proximity to a dynamic intrusive center. The morphology of the intrusion- and breccias-hosted mineralized zones currently being mined is unknown, but their presence lends support for a significant target at the project comprised of a concealed mineralized intrusive and related breccias. The entirety of the broad pervasive alteration zone and the diorite intrusion(s) and immediate wallrock are prospective for hosting copper mineralization. A similarly prospective intrusion that hosts Cu occurrences crops out to the southwest of the Rosario decline. Drilling is required to define the limits of the currently exploited mineralized zone and to test for the presence of others within the alteration halo.
22.1.3Other Targets
Reconnaissance mapping has demonstrated that the color anomaly visible on satellite imagery is related to hydrothermal alteration, and exploration that post dates the date of acquisition of the satellite imagery proves that some of this hydrothermal alteration is directly associated with primary copper sulfide mineralization. The empirical evidence is clear that the alteration zones exposed throughout the district are prospective for discovery of additional copper sulfide mineralized zones. The Manto pit at the Rosario concession is developed at the edge of an Fe-oxide color anomaly related to oxidation of sulfide bearing volcanic rocks. Figure 22.1 is a satellite image of the area of the color anomaly where the Manto pit was later developed. Figure 22.2 shows the extensive workings now developed at this location, and the limit of the color anomaly is seen to correspond with the mineralized zone now exposed. Similar color anomalies are present throughout the project area and by analogy are deemed to be highly prospective (Figure 22.3) .
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 65 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 22.1. Satellite image (courtesy Google Earth) vintage 2005 of Manto pit area at Rosario project, prior to exploration or mining. Waypoints 91, 92, 93, and 94 are all from pits developed in area. Distance between 91 and 94 is approximately 122m.
Figure 22.2. View looking SW at Manto pit area. Color anomaly visible in satellite image is visible in right midground of photo and correlates with copper mineralized zone at the Manto pit.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 66 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Figure 22.3.Satellite image ofproject area(courtesyGoogle Earth)showing coloranomaliesrelated tohydrothermalalteration andproposed Phase 1diamonddrillholelocations.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 67 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
22.2 Exploration Program and Budget
A 3,000m exploration diamond drilling program is recommended as an initial evaluation of the target concepts thus far developed, and if results are positive, an additional 6,000m of resource definition drilling is recommended to establish the morphology and metal contents of the mineralized zones discovered. Initial emphasis should be placed on drill testing the mineralized intrusion and breccias at the Rosario mine, exploring for stacked mantos in the Manto pit area, and testing of the mineralized plagioclase porphyry at the Tamara prospect. Because the favorable andesite sequence may be as much as 300m thick, drillholes of at least this length will be required in some areas. Locations, orientations, and depths of proposed Phase 1 drillholes are presented as Table 22.1 and drillhole locations are indicated in Figure 22.3. Location of Phase 2 drillholes is dependent upon results obtained in Phase 1. A two stage, $2.3M USD budget for the recommended work, including 9,000m of diamond core drilling, is presented as Table 22.2. The first stage comprises 3,000m of diamond core drilling with a total budget of $776,000 USD. The second stage is contingent upon positive results from the first and includes 6,000m of diamond core drilling at a total cost of $1.6M USD.
Table 22.1. Proposed Phase 1 Drill Program
Dril lhole | UTM E WGS84 | UTM N WGS84 | Az | Incl | Depth (m) | Objective |
RDDH2010-01 | 383,041 | 6,938,539 | 0 | -90 | 200 | Test structural control of Cu mineralization in plagioclase porphyry |
RDDH2010-02 | 383,103 | 6,938,356 | 0 | -90 | 300 | Test lithologic contact control of Cu mineralization in plagioclase porphyry |
RDDH2010-03 | 384,100 | 6,937,650 | 0 | -90 | 300 | Test stacked Cu mineralized mantos (stratabound zones) |
RDDH2010-04 | 384,100 | 6,937,650 | 315 | -90 | 200 | Test stacked Cu mineralized mantos (stratabound zones) |
RDDH2010-05 | 384,300 | 6,937,650 | 0 | -90 | 200 | Test stacked Cu mineralized mantos (stratabound zones) |
RDDH2010-06 | 384,700 | 6,937,950 | 0 | -90 | 200 | Test Cu mineralized zone on perifery of intrusion |
RDDH2010-07 | 384,650 | 6,937,850 | 0 | -90 | 200 | Test Cu mineralized zone in area of hyrothermal and/or intrusive breccias |
RDDH2010-08 | 384,750 | 6,937,650 | 0 | -90 | 200 | Test Cu mineralized zone in area of hyrothermal and/or intrusive breccias |
RDDH2010-09 | 384,700 | 6,937,750 | 0 | -90 | 300 | Test Cu mineralized zone in area of hyrothermal and/or intrusive breccias |
RDDH2010-10 | 384,925 | 6,937,950 | 0 | -90 | 200 | Test lateral and vertical extensions of orebody being mined in Rosario decline |
RDDH2010-11 | 384,875 | 6,937,900 | 0 | -90 | 300 | Test lateral and vertical extensions of orebody being mined in Rosario decline |
RDDH2010-12 | 384,825 | 6,937,850 | 0 | -90 | 200 | Test lateral and vertical extensions of orebody being mined in Rosario decline |
RDDH2010-13 | 384,925 | 6,937,850 | 0 | -90 | 200 | Test lateral and vertical extensions of orebody being mined in Rosario decline |
RDDH2010-14 | 384,825 | 6,937,950 | 0 | -90 | 200 | Test lateral and vertical extensions of orebody being mined in Rosario decline |
Total | 3000 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 68 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Table 22.2. Recommended work plan and budget, Rosario Project
Phase 1 Budget - Rosario Project, Region III, Chile
PHASE 1 DRILLING PROGRAM | |||||
Item | Units | Unit Cost USD | Total Cost USD | ||
Lodging/Meals/Communications | 3 | months | 7,500 | 22,500 | |
Roads and Drill Pads | 1 | 40,000 | 40,000 | ||
Drilling - Diamond Core | 3000 | meters | 150 | 450,000 | |
Assays | 3300 | samples | 25 | 82,500 | |
Senior Geologist | 36 | days | 800 | 28,800 | |
Project Geologists | 72 | man-days | 350 | 25,200 | |
Technicians/Samplers | 144 | man-days | 100 | 14,400 | |
Vehicles and Fuel | 72 | vehicle-days | 110 | 7,920 | |
Permits | 1 | permit | 15,000 | 15,000 | |
Field Supplies | 1 | 20,000 | 20,000 | ||
Travel Costs | 1 | 20,000 | 20,000 | ||
Environmental Costs/Reclamation | 1 | 50,000 | 50,000 | ||
Total | $776,320 | ||||
Grand Total Phase 1 | $776,320 | USD |
Phase 2 Budget -Conditional upon positive results from Phase 1 Program
PHASE 2 RESOURCE MODELING AND INFILL DRILLING PROGRAM | |||||
Item | Units | Unit Cost USD | Total Cost USD | ||
Lodging/Meals/Communications | 6 | months | 7,500 | 45,000 | |
Roads and Drill Pads | 1 | 75,000 | 75,000 | ||
Resource Modeling | 1 | 75,000 | 75,000 | ||
Drilling - Diamond Drill Core | 6000 | meters | 150 | 900,000 | |
Assays | 6600 | samples | 20 | 132,000 | |
Senior Geologist | 126 | days | 800 | 100,800 | |
Project Geologists | 252 | man-days | 350 | 88,200 | |
Technicians/Samplers | 252 | man-days | 100 | 25,200 | |
Vehicles and Fuel | 126 | vehicle-days | 110 | 13,860 | |
Permits | 1 | permit | 25,000 | 25,000 | |
Field Supplies | 1 | 10,000 | 10,000 | ||
Travel Costs | 1 | 30,000 | 30,000 | ||
Reclamation | 1 | 50,000 | 50,000 | ||
Total | $1,570,060 | ||||
Grand Total Phase 2 | $1,570,060 | USD | |||
Grand Total, Phase 1 and Phase 2 | $2,346,380 | USD |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 69 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
23 REFERENCES
Arevalo, C., 2005, Carta Los Loros, Región de Atacama, Carta Geológica de Chile Serie Geología Básica No. 92, Escala 1:100,000, Servicio Nacional de Geología y Minería, Subdirección Nacional de Geología.
Boric, R, Holmgren, C., Wilson, N., and Zentilli, M., 2002, The geology of the El Soldado manto type Cu (Ag) deposit, Central Chile, in – Porter, T.M., (Editor) 2002 – Hydrothermal iron oxide copper-gold and related deposits, a global perspective, Vol. 2; PGC Publishing, Adelaide Australia pp. 163-184.
Diaz, A., Lledo, H., Vivallo, W., 1998, Yacimientos metalíferos de la hoja Los Loros, Region de Atacama, Mapa de Recursos Minerales de Chile, No. 2, Servicio Nacional de Geología y Minería, Subdirección Nacional de Geología.
Dirección Meteorológica de Chile, 1991, Normales de precipitación, temperatura media, temperatura mínima media y temperatura máxima media, 1961-1990, Estación Meteorológica Copiapó-Chamonate, data available through the Departamento de Geofísica de la Facultad de Ciencias Físicas y Matemáticas de la Universidad de Chile, athttp://www.atmosfera.cl/.
Ortiz, F., Araya, R., Franquesa, F., Moraga, A., and Zentilli, M., 1966, Informe geológico del distrito minero Punta del Cobre, Provincia de Atacama, Instituto de Investigaciones Geologicas, Boletin No. 14, 46p., Santiago.
Marschik, R., and Fontbote, L., 2001, The Candelaria-Punta del Cobre iron oxide Cu-Au(-Zn-Ag) deposits, Chile. Econ. Geol v96:pp1799-1826.
Ramirez, L., Palacios, C., Townley, B., Parada, M., Sial, A., Fernandez-Turiel, J., Gimeno, D., Garcia-Valles, M., and Lehmann, B., 2006, The Mantos Blancos copper deposit: an upper Jurassi breccia-style hydrothermal system in the Coastal Range of Northern Chile, Mineralium Deposita Vol. 41 No. 3, pp. 246-258.
Ruiz, C.F., Aguilar, A., Egert, E., Espinosa. W., Peebles, F., Quezada, R., and Serrano, M., 1971, Stratabound copper sulphide deposits of Chile, pp. 252-260 in Joint Symposium Volume IMA-IAGOD Mtgs., 1970, Tokyo, Soc. Min. Geol. Jap., Spec. Issue 3, 500p.
Ryan, P., Lawrence, A., Jenkins, R., Matthews, J., Zamora, J., Marino, E., and Urqueta, I., 1996, The Candelaria copper-gold deposit, Chile, in Pierce, F.W., and Bohn, J.G., eds., Porphyry copper deposits of the American Cordillera: Arizona Geological Society Digest v. 20, p. 625-645.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 70 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Salas, A., 1954, Estudio geológico minero del distrito de Pampa Larga, Copiapó, Memoria de Titulo (Inedito), Universidad de Chile, Departamento de Ingenieria de Minas, 128 p., Santiago.
Sillitoe, R., 2003, Iron-oxide-copper-gold deposits: an Andean view, Mineralium Deposita v. 38, p. 787-812.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 71 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
24 STATEMENT OF QUALIFICATION
I, Matthew Dean Gray, of Hermosillo, Sonora, Mexico, do hereby certify:
1. | That I am employed as a geologist at Resource Geosciences de Mexico SA de CV, (RGM) an independent consulting geosciences firm, whose address is Calle 14 de Abril No. 68, Colonia San Benito, Hermosillo, Sonora, CP 83190, MEXICO. |
2. | That: a.) I am a Certified Professional Geologist (#10688) with the American Institute of Professional Geologists; b.) My qualifications include experience applicable to the subject matter of this report, specifically the economic evaluation of both early stage and production stage copper and copper-gold projects, including but not limited to, projects in the United States (Sanchez porphyry Cu deposit, Arizona; Cerillos porphyry Cu deposit, New Mexico), Canada (McIntyre porphyry Cu-Au deposit, Ontario), Brazil (Camaqua, Rio Grande do Sul), Mexico (Piedras Verdes, San Javier, Cuatro Hermanos porphyry Cu deposits, Sonora) and Chile (Nemesis porphyry Cu-Au deposit, Region III Chile, Franke and Pelusa andesite hosted Cu deposits, Region II); and c.) as a result of my education, experience, and professional qualifications I am a “Qualified Person” for the purposes of CSA National Instrument 43-101. |
3. | That I am a graduate of the Colorado School of Mines (Ph.D., Geology with Minor in Mineral Economics, 1994; B.Sc., Geological Engineering, 1985) and the University of Arizona (M.Sc., Geosciences, 1988) and I have practiced my profession continuously since 1988. |
4. | That I have no material interest, direct or indirect, in the property discussed in this report or in the securities of Bridgeport Ventures Inc. |
5. | That, as of Dec 4, 2009 (the original date of the technical report), to the best of my knowledge, information and belief this technical report contains all scientific and technical information that is required to be disclosed to make the Technical Report not misleading. |
6. | That this report on the Rosario project is based on a 6 day site visit (3 to 8 October 2009) and on a review of published and unpublished information and that I have had no prior involvement with the property that is the subject of this report. |
7. | That I have read National Instrument 43-101 and Form 43-101 and that the technical report has been prepared in compliance with the Instrument and Form and that I am responsible for the compilation of this report. |
8. | That I consent to the use of this report, dated 27 November 2009, revised 4 December 2009, Amended 7 December 2010, titled “Summary Report on the Rosario Copper-Gold Project, Region III, Atacama, Chile”, by Bridgeport Ventures Inc. for making representations on the subject property. |
9. | That I have prepared this report for Bridgeport Ventures Inc It is based on my observations and data collected by myself, and on data obtained from the Servicio Nacional de Geología y Minería, Subdirección Nacional de Geología, a Chilean Federal agency, and from the Instituto Cartografico Militar, a Chilean Federal agency, and on data provided by Bridgeport Ventures Inc. |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 72 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Appendix A. Assay certificates, rock chip samples collected by M Gray, October 2009.
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 73 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 74 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 75 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 76 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 77 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Appendix B. Tabulation of ore sales, oxide and sulfide, from Rosario mine to ENAMI, 2006-2009.
Note: Au and Ag assays are not reported for oxide ores. These metals are not recovered by ENAMI’s SX-EW plant therefore they are not payable.
Sulfide Ores
Liquidation No. | Date | Mineral Type | Dry WeightKg | %Insol Cu | Aggpt | Au gpt | Value paid,USD |
L26771 | 9/11/2007 | sulfide | 45,980 | 1.84 | 1.00 | 0.674 | 4,686.74 |
L26884 | 9/13/2007 | sulfide | 73,619 | 1.34 | 3.23 | 0.557 | 5,229.89 |
L27005 | 9/21/2007 | sulfide | 106,410 | 1.47 | 3.82 | 0.977 | 8,569.20 |
L27076 | 9/26/2007 | sulfide | 27,767 | 1.48 | 8.00 | .5 | 2,177.21 |
L27153 | 9/28/2007 | sulfide | 52,372 | 1.49 | 3.65 | 0.707 | 4,260.99 |
L27427 | 10/9/2007 | sulfide | 21,256 | 1.67 | 0.600 | 1,973.41 | |
L27604 | 10/12/2007 | sulfide | 47,123 | 2.16 | 3.61 | 1.464 | 6,264.53 |
L27770 | 10/19/2007 | sulfide | 45,635 | 1.80 | 4.38 | 0.767 | 4,684.43 |
L40871 | 2/20/2008 | sulfide | 53,427 | 2.42 | 1.01 | 1.048 | 2,766.98 |
L32093 | 4/4/2008 | sulfide | 165,362 | 2.23 | 1.35 | 0.974 | 23,894.81 |
L32455 | 4/9/2008 | sulfide | 81,460 | 2.21 | 2.00 | 0.970 | 11,681.86 |
L32630 | 4/15/2008 | sulfide | 27,590 | 1.98 | 1.00 | 1.200 | 3,629.74 |
T32774 | 4/24/2008 | sulfide | 86,567 | 1.73 | 7.9 | 0.936 | 7,366.43 |
T32775 | 4/24/2008 | sulfide | 78,613 | 1.76 | 7.45 | 0.560 | 6,289.04 |
L32877 | 4/30/2008 | sulfide | 82,504 | 1.96 | 1.01 | 0.970 | 10,412.00 |
L33052 | 5/8/2008 | sulfide | 212,240 | 1.94 | 6.87 | 0.504 | 26,254.09 |
L33048 | 5/8/2008 | sulfide | 138,186 | 1.84 | 3.18 | 0.543 | 15,914.88 |
L33057 | 5/8/2008 | sulfide | 390,446 | 1.89 | 1.64 | 0.556 | 46,533.35 |
R33332 | 5/13/2008 | sulfide | 86,562 | 1.73 | 7.90 | 0.936 | 9,900.10 |
R33333 | 5/13/2008 | sulfide | 78,613 | 1.76 | 7.45 | 0.560 | 8,629.35 |
L33306 | 5/13/2008 | sulfide | 149,858 | 1.73 | 1.35 | 0.540 | 16,058.78 |
L33305 | 5/13/2008 | sulfide | 107,946 | 1.89 | 1.73 | 0.574 | 12,896.31 |
L33561 | 5/16/2008 | sulfide | 436,739 | 1.87 | 1.89 | 0.689 | 52,465.46 |
L33560 | 5/16/2008 | sulfide | 28,171 | 1.77 | 1.00 | 0.200 | 2,933.16 |
L33613 | 5/20/2008 | sulfide | 350,736 | 2.01 | 2.85 | 0.582 | 44,767.94 |
L33664 | 5/23/2008 | sulfide | 177,774 | 1.86 | 2.8 | 0.461 | 20,424.45 |
L33736 | 5/27/2008 | sulfide | 25,571 | 1.79 | 6.00 | 0.700 | 2,926.09 |
L33735 | 5/27/2008 | sulfide | 272,874 | 2.00 | 1.39 | 0.893 | 6,850.00 |
L33828 | 5/30/2008 | sulfide | 134,935 | 1.73 | 1.56 | 0.534 | 14,502.16 |
L41422 | 1/1/2009 | sulfide | 28,496 | 0.37 | 2.600 | 681.34 | |
L40149 | 1/9/2009 | sulfide | 870,969 | 2.43 | 2.05 | 1.006 | 40,534.90 |
L40099 | 1/9/2009 | sulfide | 138,255 | 2.44 | 3.23 | 1.280 | 6,995.70 |
L40218 | 1/13/2009 | sulfide | 381,569 | 2.32 | 5.70 | 0.799 | 15,762.62 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 78 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
L40219 | 1/13/2009 | sulfide | 88,177 | 2.60 | 5.49 | 0.692 | 4,044.69 |
L40246 | 1/14/2009 | sulfide | 75,225 | 2.48 | 2.95 | 1.103 | 4,053.28 |
L40407 | 1/15/2009 | sulfide | 118,033 | 1.69 | 4.55 | 0.619 | 3,001.58 |
L40409 | 1/15/2009 | sulfide | 54,470 | 2.57 | 3.98 | 1.065 | 2,751.28 |
L40406 | 1/16/2009 | sulfide | 524,610 | 2.53 | 4.18 | 1.113 | 26,324.93 |
L40408 | 1/16/2009 | sulfide | 235,485 | 1.93 | 8.48 | 0.696 | 7,495.49 |
L40479 | 1/22/2009 | sulfide | 252,592 | 1.83 | 5.32 | 0.701 | 7,514.61 |
L40528 | 1/27/2009 | sulfide | 526,888 | 1.35 | 1.19 | 0.541 | 8,983.44 |
L40529 | 1/27/2009 | sulfide | 48,403 | 1.85 | 77.85 | 0.682 | 2,098.27 |
L40623 | 2/6/2009 | sulfide | 365,149 | 1.64 | 1.47 | 0.611 | 8,876.77 |
L40622 | 2/7/2009 | sulfide | 59,602 | 2.45 | 2.00 | 0.906 | 2,716.66 |
L40710 | 2/10/2009 | sulfide | 191,731 | 1.39 | 1.28 | 0.542 | 3,431.98 |
L40795 | 2/11/2009 | sulfide | 82,809 | 1.31 | 5.34 | 0.700 | 1,537.76 |
L40794 | 2/13/2009 | sulfide | 298,032 | 1.62 | 1.62 | 0.527 | 6,723.60 |
L40870 | 2/20/2009 | sulfide | 138,609 | 1.79 | 1.40 | 0.707 | 4,011.34 |
L40872 | 2/20/2009 | sulfide | 196,242 | 2.25 | 2.63 | 0.876 | 8,850.51 |
L40950 | 2/21/2009 | sulfide | 76,199 | 2.51 | 2.56 | 0.827 | 3,823.67 |
L41915 | 3/6/2009 | sulfide | 24,989 | 2.09 | 1.00 | 0.900 | 960.58 |
L41016 | 3/6/2009 | sulfide | 169,173 | 1.99 | 1.19 | 0.834 | 6,509.78 |
L41054 | 3/10/2009 | sulfide | 396,747 | 1.97 | 1.98 | 0.678 | 14,064.68 |
L41150 | 3/13/2009 | sulfide | 161,047 | 1.87 | 1.21 | 0.757 | 5,464.43 |
L41149 | 3/13/2009 | sulfide | 288,507 | 1.88 | 1.50 | 0.627 | 9,411.10 |
L41180 | 3/17/2009 | sulfide | 475,423 | 2.16 | 1.53 | 0.766 | 19,506.34 |
L41284 | 3/20/2009 | sulfide | 541,216 | 2.47 | 1.28 | 1.079 | 30,697.77 |
L41423 | 3/25/2009 | sulfide | 375,177 | 2.43 | 2.89 | 0.989 | 20,264.62 |
L41421 | 3/25/2009 | sulfide | 247,254 | 2.00 | 2.06 | 0.829 | 9,432.15 |
L41619 | 3/31/2009 | sulfide | 30,200 | 2.39 | 2.00 | 0.500 | 1,166.02 |
L41618 | 3/31/2009 | sulfide | 103,239 | 2.76 | 1.77 | 1.124 | 6,673.37 |
L41620 | 3/31/2009 | sulfide | 53,308 | 2.84 | 1.50 | 1.444 | 3,833.38 |
L41687 | 4/7/2009 | sulfide | 180,845 | 2.26 | 2.00 | 0.813 | 8,548.54 |
L41778 | 4/9/2009 | sulfide | 184,667 | 2.22 | 1.71 | 0.110 | 9,501.12 |
L41952 | 4/17/2009 | sulfide | 181,911 | 2.18 | 1.74 | 1.017 | 10,328.91 |
L41953 | 4/17/2009 | sulfide | 100,096 | 2.40 | 1.72 | 0.949 | 5,546.85 |
L41954 | 4/17/2009 | sulfide | 28,289 | 0.15 | 2.00 | 3.400 | 1,069.89 |
L42181 | 4/24/2009 | sulfide | 111,887 | 2.17 | 1.27 | 0.965 | 6,214.20 |
L42180 | 4/24/2009 | sulfide | 185,672 | 1.99 | 1.13 | 0.727 | 8,667.17 |
L42226 | 4/28/2009 | sulfide | 152,105 | 2.20 | 8.01 | 0.500 | 18,138.52 |
L42267 | 4/30/2009 | sulfide | 278,518 | 2.04 | 1.00 | 1.027 | 14,831.08 |
L42375 | 5/8/2009 | sulfide | 381,292 | 1.99 | 1.55 | 0.860 | 18,648.99 |
L42565 | 5/15/2009 | sulfide | 482,129 | 2.24 | 1.35 | 0.931 | 29,488.20 |
L42658 | 5/22/2009 | sulfide | 88,235 | 2.84 | 3.75 | 0.996 | 8,005.78 |
L42651 | 5/22/2009 | sulfide | 189,318 | 2.42 | 3.29 | 0.877 | 14,123.12 |
L42816 | 6/5/2009 | sulfide | 105,886 | 2.08 | 1.72 | 0.755 | 6,475.99 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 79 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
L43041 | 6/18/2009 | sulfide | 351,595 | 2.35 | 2.22 | 0.848 | 25,738.16 |
L43042 | 6/18/2009 | sulfide | 295,757 | 1.17 | 28.65 | 0.291 | 9,165.51 |
L43044 | 6/19/2009 | sulfide | 355,527 | 2.27 | 3.05 | 0.759 | 24,790.07 |
L43167 | 6/26/2009 | sulfide | 251,748 | 2.14 | 1.56 | 0.759 | 16,608.16 |
Tota lkg | 15,109,638 | ||||||
Weighte davg grade, insol Cu% | 2.05 | ||||||
Weighted avg grade, Ag gpt | 3.33 | ||||||
Weighted avg grade, Au gpt | 0.79 |
Oxide Ores
Liquidation No. | Date | Mineral Type | Dry Weight Kg | % T Cu | Value paid, USD |
L24299 | 5/24/1997 | oxide | 414,220 | 1.24 | 20,790 |
15848 | 2/17/2006 | oxide | 244,984 | 1.89 | 9,711 |
15931 | 2/28/2006 | oxide | 295,626 | 1.62 | 9,484 |
L16162 | 3/4/2006 | oxide | 400,359 | 1.81 | 15,343 |
R16015 | 3/7/2006 | oxide | 227,767 | 1.70 | 8,471 |
R16154 | 3/10/2006 | oxide | 157,392 | 1.75 | 6,123 |
L16215 | 3/17/2006 | oxide | 195,650 | 1.71 | 7,427 |
L16289 | 3/24/2006 | oxide | 404,910 | 1.78 | 16,002 |
L16356 | 3/31/2006 | oxide | 308,442 | 1.77 | 12,378 |
L16401 | 4/7/2006 | oxide | 466,308 | 1.64 | 16,927 |
4/13/2006 | oxide | 284,035 | 1.56 | 9,629 | |
L16559 | 4/21/2006 | oxide | 310,508 | 1.79 | 13,178 |
L16669 | 4/28/2006 | oxide | 511,831 | 1.58 | 17,935 |
L16767 | 5/5/2006 | oxide | 98,339 | 1.54 | 3,350 |
L16849 | 5/12/2006 | oxide | 576,685 | 1.52 | 24,840 |
L17007 | 5/19/2006 | oxide | 166,083 | 1.60 | 8,410 |
L17026 | 5/24/2006 | oxide | 865,290 | 1.54 | 40,842 |
L17092 | 5/31/2006 | oxide | 141,213 | 1.48 | 6,133 |
L17122 | 6/6/2006 | oxide | 284,473 | 1.52 | 18,249 |
L17277 | 6/16/2006 | oxide | 390,058 | 1.39 | 22,194 |
L17358 | 6/23/2006 | oxide | 294,590 | 1.35 | 16,359 |
L17562 | 7/7/2006 | oxide | 90,870 | 1.49 | 4,841 |
L17669 | 7/13/2006 | oxide | 239,319 | 1.32 | 12,447 |
L17728 | 7/14/2006 | oxide | 102,927 | 1.39 | 5,758 |
L17738 | 7/18/2006 | oxide | 321,757 | 1.42 | 16,863 |
L17796 | 7/21/2006 | oxide | 617,030 | 1.32 | 28,180 |
L17840 | 7/25/2006 | oxide | 565,279 | 1.34 | 26,630 |
L17899 | 7/28/2006 | oxide | 584,882 | 1.47 | 30,870 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 80 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
L17981 | 8/4/2006 | oxide | 1,323,211 | 1.47 | 74,802 |
L18142 | 8/11/2006 | oxide | 301,324 | 1.43 | 16,856 |
L18356 | 8/18/2006 | oxide | 488,145 | 1.36 | 25,932 |
L18356 | 8/25/2006 | oxide | 583,585 | 1.77 | 42,732 |
L18502 | 9/6/2006 | oxide | 693,726 | 2.08 | 61,619 |
L18612 | 9/8/2006 | oxide | 573,801 | 1.78 | 42,239 |
L18788 | 9/15/2006 | oxide | 711,177 | 1.67 | 49,021 |
L18846 | 9/22/2006 | oxide | 545,295 | 1.61 | 36,044 |
L19047 | 9/29/2006 | oxide | 301,098 | 1.39 | 16,642 |
L19114 | 10/6/2006 | oxide | 98,852 | 1.65 | 6,677 |
L19116 | 10/6/2006 | oxide | 679,738 | 2.15 | 61,598 |
L19359 | 10/18/2006 | oxide | 292,554 | 1.76 | 21,210 |
L19360 | 10/18/2006 | oxide | 94,683 | 1.39 | 5,199 |
L19616 | 10/31/2006 | oxide | 464,204 | 1.40 | 25,257 |
L19617 | 10/31/2006 | oxide | 405,663 | 1.70 | 28,185 |
L19660 | 11/7/2006 | oxide | 300,496 | 1.67 | 20,461 |
R19663 | 11/7/2006 | oxide | 608,745 | 1.76 | 43,470 |
L19866 | 11/14/2006 | oxide | 917,741 | 1.85 | 69,901 |
L19964 | 11/21/2006 | oxide | 317,703 | 1.96 | 25,801 |
L19962 | 11/21/2006 | oxide | 157,063 | 2.10 | 13,682 |
T19963 | 11/21/2006 | oxide | 205,707 | 1.60 | 9,956 |
L20206 | 12/6/2006 | oxide | 733,049 | 1.54 | 43,142 |
L20205 | 12/6/2006 | oxide | 316,581 | 1.46 | 17,150 |
R20229 | 12/6/2006 | oxide | 205,707 | 1.60 | 12,235 |
L20380 | 12/13/2006 | oxide | 747,132 | 1.47 | 39,538 |
L20381 | 12/13/2006 | oxide | 156,005 | 1.65 | 9,367 |
L20586 | 12/21/2006 | oxide | 904,739 | 1.35 | 43,355 |
T20815 | 12/29/2006 | oxide | 147,741 | 1.41 | 5,471 |
R20850 | 1/9/2007 | oxide | 147,741 | 1.41 | 6,942 |
L20854 | 1/9/2007 | oxide | 1,053,083 | 1.30 | 45,218 |
L20852 | 1/9/2007 | oxide | 265,848 | 1.21 | 11,022 |
L21133 | 1/18/2007 | oxide | 102,296 | 1.87 | 6,696 |
L21134 | 1/18/2007 | oxide | 1,057,690 | 1.37 | 47,522 |
T21321 | 1/24/2007 | oxide | 316,376 | 1.31 | 9,637 |
L21323 | 1/24/2007 | oxide | 396,829 | 1.26 | 16,381 |
T21319 | 1/24/2007 | oxide | 935,614 | 1.41 | 31,418 |
L21322 | 1/24/2007 | oxide | 550,903 | 1.43 | 26,284 |
L21629 | 1/25/2007 | oxide | 408,669 | 1.34 | 14,218 |
R21645 | 2/6/2007 | oxide | 316,376 | 1.31 | 10,520 |
R21644 | 2/6/2007 | oxide | 935,614 | 1.41 | 34,215 |
T21814 | 2/7/2007 | oxide | 103,984 | 1.34 | 2,419 |
T21813 | 2/7/2007 | oxide | 212,586 | 1.47 | 5,731 |
T21815 | 2/7/2007 | oxide | 105,681 | 1.71 | 3,582 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 81 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
L21806 | 2/13/2007 | oxide | 608,124 | 1.42 | 22,926 |
L21807 | 2/13/2007 | oxide | 304,813 | 1.30 | 955 |
L21808 | 2/13/2007 | oxide | 206,261 | 1.45 | 8,009 |
L23008 | 2/14/2007 | oxide | 210,025 | 1.26 | 6,502 |
L23007 | 2/14/2007 | oxide | 205,988 | 1.30 | 657 |
L23006 | 2/14/2007 | oxide | 266,644 | 1.33 | 9,109 |
T22010 | 2/23/2007 | oxide | 207,736 | 1.35 | 4,510 |
T22011 | 2/23/2007 | oxide | 214,390 | 1.49 | 5,834 |
L22194 | 3/6/2007 | oxide | 273,899 | 1.25 | 8,697 |
L22193 | 3/6/2007 | oxide | 162,001 | 1.28 | 5,122 |
R22214 | 3/6/2007 | oxide | 214,390 | 1.49 | 8,561 |
R22215 | 3/6/2007 | oxide | 207,736 | 1.35 | 6,895 |
R22216 | 3/6/2007 | oxide | 105,681 | 1.71 | 5,119 |
R22217 | 3/6/2007 | oxide | 103,984 | 1.34 | 3,604 |
R22218 | 3/6/2007 | oxide | 212,586 | 1.47 | 8,389 |
L22470 | 3/15/2007 | oxide | 103,704 | 1.27 | 3,130 |
L22471 | 3/15/2007 | oxide | 217,338 | 1.24 | 6,198 |
L22624 | 3/22/2007 | oxide | 105,390 | 1.27 | 3,316 |
L22625 | 3/22/2007 | oxide | 824,027 | 1.24 | 24,941 |
L23158 | 4/10/2007 | oxide | 366,040 | 1.32 | 13,599 |
L23156 | 4/10/2007 | oxide | 100,977 | 1.35 | 4,190 |
L23157 | 4/10/2007 | oxide | 111,521 | 1.37 | 4,693 |
L23159 | 4/10/2007 | oxide | 861,788 | 1.33 | 34,455 |
L23425 | 4/19/2007 | oxide | 95,467 | 1.24 | 3,539 |
L23424 | 4/19/2007 | oxide | 309,936 | 1.19 | 10,745 |
L23426 | 4/19/2007 | oxide | 211,887 | 1.24 | 7,861 |
L23593 | 4/24/2007 | oxide | 104,702 | 1.29 | 4,044 |
L23594 | 4/24/2007 | oxide | 25,996 | 1.20 | 1,165 |
T23595 | 4/24/2007 | oxide | 199,985 | 1.23 | 5,108 |
L23596 | 4/24/2007 | oxide | 197,229 | 1.20 | 7,098 |
L23598 | 4/24/2007 | oxide | 517,748 | 1.22 | 18,509 |
L23602 | 4/24/2007 | oxide | 396,828 | 1.21 | 14,107 |
R23962 | 5/8/2007 | oxide | 199,985 | 1.23 | 9,873 |
L24137 | 5/15/2007 | oxide | 338,443 | 1.20 | 13,691 |
L24138 | 5/15/2007 | oxide | 102,898 | 1.24 | 3,859 |
L24267 | 5/18/2007 | oxide | 97,961 | 1.20 | 4,674 |
L22717 | 5/23/2007 | oxide | 99,658 | 1.32 | 3,285 |
L22718 | 5/23/2007 | oxide | 108,116 | 1.27 | 3,433 |
T24412 | 5/31/2007 | oxide | 305,473 | 1.21 | 10,591 |
T24411 | 5/31/2007 | oxide | 90,948 | 1.20 | 3,100 |
R24697 | 6/8/2007 | oxide | 90,948 | 1.20 | 3,100 |
L24751 | 6/8/2007 | oxide | 117,895 | 1.25 | 6,037 |
L24750 | 6/8/2007 | oxide | 583,471 | 1.20 | 27,757 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 82 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
R24699 | 6/8/2007 | oxide | 305,473 | 1.21 | 14,638 |
L24797 | 6/12/2007 | oxide | 396,886 | 1.22 | 18,991 |
L24792 | 6/12/2007 | oxide | 106,128 | 1.22 | 3,068 |
T24830 | 6/14/2007 | oxide | 215,369 | 1.23 | 7,609 |
T24831 | 6/14/2007 | oxide | 68,783 | 1.46 | 3,055 |
T24885 | 6/19/2007 | oxide | 223,363 | 1.70 | 11,738 |
T24937 | 6/22/2007 | oxide | 130,678 | 1.43 | 5,648 |
L24992 | 6/28/2007 | oxide | 507,903 | 1.21 | 24,278 |
T24995 | 6/28/2007 | oxide | 195,775 | 1.20 | 6,660 |
T25018 | 6/29/2007 | oxide | 555,732 | 1.47 | 24,441 |
R250070 | 7/6/2007 | oxide | 215,369 | 1.23 | 10,232 |
R25072 | 7/6/2007 | oxide | 68,783 | 1.46 | 4,049 |
R25074 | 7/6/2007 | oxide | 223,363 | 1.70 | 15,499 |
R25076 | 7/6/2007 | oxide | 130,678 | 1.43 | 7,502 |
R25081 | 7/6/2007 | oxide | 195,775 | 1.20 | 892 |
R25084 | 7/6/2007 | oxide | 555,732 | 1.47 | 32,533 |
L25242 | 7/6/2007 | oxide | 206,321 | 1.33 | 8,131 |
L25243 | 7/6/2007 | oxide | 543,296 | 1.20 | 25,707 |
L25244 | 7/6/2007 | oxide | 1,147,795 | 1.36 | 57,490 |
L25459 | 7/13/2007 | oxide | 314,708 | 2.13 | 27,480 |
T25507 | 7/13/2007 | oxide | 132,823 | 2.12 | 8,546 |
T25604 | 7/20/2007 | oxide | 258,255 | 1.74 | 12,975 |
L25605 | 7/20/2007 | oxide | 180,818 | 1.85 | 13,513 |
T25645 | 7/25/2007 | oxide | 400,456 | 1.65 | 18,938 |
L25669 | 7/27/2007 | oxide | 125,189 | 1.39 | 7,069 |
T25670 | 7/27/2007 | oxide | 235,342 | 1.55 | 10,367 |
R25909 | 8/7/2007 | oxide | 132,823 | 2.12 | 12,740 |
R25910 | 8/7/2007 | oxide | 258,255 | 1.74 | 19,666 |
R25911 | 8/7/2007 | oxide | 400,456 | 1.65 | 28,749 |
L25864 | 8/7/2007 | oxide | 239,715 | 1.82 | 19,074 |
L25862 | 8/7/2007 | oxide | 249,873 | 1.67 | 18,388 |
R25916 | 8/8/2007 | oxide | 235,342 | 1.55 | 15,777 |
L26028 | 8/10/2007 | oxide | 102,345 | 1.44 | 6,328 |
L26124 | 8/16/2007 | oxide | 571,865 | 1.46 | 34,537 |
L26234 | 8/17/2007 | oxide | 48,180 | 1.52 | 3,162 |
L26203 | 8/17/2007 | oxide | 25,812 | 1.65 | 1,860 |
T26390 | 8/28/2007 | oxide | 499,104 | 1.96 | 32,207 |
T26449 | 8/30/2007 | oxide | 441,517 | 1.52 | 20,628 |
T26462 | 8/31/2007 | oxide | 49,460 | 1.85 | 2,915 |
R26712 | 9/7/2007 | oxide | 441,517 | 1.52 | 26,297 |
R26693 | 9/7/2007 | oxide | 499,104 | 1.96 | 40,467 |
L26750 | 9/7/2007 | oxide | 107,029 | 1.24 | 5,057 |
R26807 | 9/11/2007 | oxide | 49,460 | 1.85 | 3,690 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 83 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
R26808 | 9/11/2007 | oxide | 210,520 | 1.92 | 16,221 |
L26770 | 9/11/2007 | oxide | 28,877 | 1.77 | 2,068 |
L26781 | 9/11/2007 | oxide | 107,030 | 1.26 | 3,457 |
L26769 | 9/11/2007 | oxide | 405,575 | 1.48 | 23,584 |
L26885 | 9/13/2007 | oxide | 183,254 | 1.35 | 8,347 |
T27078 | 9/26/2007 | oxide | 42,981 | 1.98 | 2,532 |
L27077 | 9/26/2007 | oxide | 171,536 | 1.25 | 8,222 |
T27154 | 9/28/2007 | oxide | 102,907 | 2.16 | 6,452 |
T27152 | 9/28/2007 | oxide | 284,842 | 2.20 | 18,133 |
R27347 | 10/5/2007 | oxide | 42,981 | 1.98 | 3,569 |
R27350 | 10/5/2007 | oxide | 102,907 | 2.16 | 9,168 |
L27360 | 10/5/2007 | oxide | 148,935 | 2.10 | 12,887 |
L27361 | 10/5/2007 | oxide | 252,201 | 1.86 | 18,434 |
R27349 | 10/5/2007 | oxide | 284,842 | 2.20 | 25,798 |
L27421 | 10/9/2007 | oxide | 74,128 | 2.29 | 7,179 |
L27424 | 10/9/2007 | oxide | 24,696 | 2.1 | 2,094 |
L27428 | 10/9/2007 | oxide | 26,840 | 2.06 | 2,242 |
L27484 | 10/10/2007 | oxide | 318,967 | 1.49 | 18,855 |
L27662 | 10/17/2007 | oxide | 172,885 | 1.99 | 13,905 |
L27663 | 10/17/2007 | oxide | 102,374 | 2.07 | 8,733 |
L27642 | 10/20/2007 | oxide | 266,692 | 1.94 | 20,815 |
L32092 | 4/4/2008 | oxide | 286,121 | 1.83 | 20,174 |
L32091 | 4/4/2008 | oxide | 469,897 | 1.64 | 27,426 |
L32096 | 4/4/2008 | oxide | 288,585 | 1.63 | 16,700 |
L32090 | 4/4/2008 | oxide | 287,607 | 1.82 | 19,974 |
L32458 | 4/9/2008 | oxide | 251,521 | 1.44 | 12,508 |
L32512 | 4/11/2008 | oxide | 48,063 | 1.64 | 2,889 |
L32511 | 4/11/2008 | oxide | 183,699 | 1.71 | 10,750 |
L32688 | 4/18/2008 | oxide | 24,997 | 2.00 | 1,749 |
L32822 | 4/29/2008 | oxide | 24,366 | 1.96 | 1,953 |
L32820 | 4/29/2008 | oxide | 74,351 | 1.92 | 5,334 |
L32821 | 4/29/2008 | oxide | 47,666 | 1.40 | 2,639 |
L33054 | 5/8/2008 | oxide | 155,723 | 1.44 | 7,448 |
L33060 | 5/8/2008 | oxide | 125,431 | 1.75 | 8,063 |
L33825 | 5/30/2008 | oxide | 50,644 | 1.72 | 3,193 |
L33827 | 5/30/2008 | oxide | 47,927 | 1.91 | 3,563 |
L33835 | 5/30/2008 | oxide | 107,340 | 1.25 | 3,534 |
L40247 | 1/14/2009 | oxide | 26,442 | 2.27 | 2,217 |
L42268 | 4/30/2009 | oxide | 24,454 | 1.90 | 435 |
L42376 | 5/8/2009 | oxide | 22,650 | 1.85 | 380 |
L42562 | 5/15/2009 | oxide | 56,017 | 1.84 | 1,136 |
L42652 | 5/22/2009 | oxide | 48,606 | 2.11 | 1,581 |
L42817 | 6/5/2009 | oxide | 24,046 | 2.17 | 734 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 84 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
L 43043 | 6/18/2009 | oxide | 28,799 | 1.70 | 516 |
T 19369 | 18/0/06 | oxide | 608,745 | 1.76 | 33,256 |
L 17206 | 9&/06 | oxide | 529,446 | 1.48 | 32,572 |
Total kg | 59,327,962 | ||||
Weighted avg grade, total Cu% | 1.52 |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 85 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Appendix C. Listing of waypoints referred to in text and figures, locations where geologic data was collected during M Gray reconnaissance evaluation.
Name | Description | UTM Zone No WGS84 | UTM Zone Ltr WGS84 | UTME | UTMN | Altitude | Symbol |
4 | 03-OCT-099:28:41AM | 19 | J | 385075 | 6937946 | 1365m | Mine |
5 | 03-OCT-099:55:56AM | 19 | J | 384896 | 6938058 | 1441m | |
6 | 03-OCT-099:59:57AM | 19 | J | 384883 | 6938063 | 1447m | |
7 | 03-OCT-0910:26:06AM | 19 | J | 384807 | 6938166 | 1455m | |
8 | 03-OCT-0910:43:19AM | 19 | J | 384923 | 6938327 | 1402m | Mine |
9 | 03-OCT-0911:22:21AM | 19 | J | 385160 | 6938196 | 1333m | |
10 | 03-OCT-0911:25:17AM | 19 | J | 385100 | 6938244 | 1326m | Mine |
11 | 03-OCT-0911:30:28AM | 19 | J | 385160 | 6938130 | 1325m | |
12 | 03-OCT-0911:34:31AM | 19 | J | 385164 | 6938103 | 1321m | |
13 | 03-OCT-0912:46:16PM | 19 | J | 382721 | 6938918 | 1250m | Mine |
14 | 03-OCT-0912:57:01PM | 19 | J | 382731 | 6938915 | 1252m | |
15 | 03-OCT-0912:58:25PM | 19 | J | 382721 | 6938912 | 1251m | |
16 | 03-OCT-091:13:14PM | 19 | J | 382761 | 6938862 | 1258m | Mine |
17 | 03-OCT-091:17:52PM | 19 | J | 382754 | 6938866 | 1257m | Mine |
18 | 03-OCT-091:24:49PM | 19 | J | 382725 | 6938875 | 1253m | Mine |
19 | 03-OCT-091:38:45PM | 19 | J | 382573 | 6938788 | 1246m | Mine |
20 | 03-OCT-091:49:34PM | 19 | J | 382577 | 6938772 | 1253m | Mine |
21 | 03-OCT-092:11:51PM | 19 | J | 382646 | 6938751 | 1251m | Mine |
22 | 03-OCT-092:14:37PM | 19 | J | 382654 | 6938736 | 1253m | Mine |
23 | 03-OCT-092:22:35PM | 19 | J | 382646 | 6938661 | 1261m | |
24 | 03-OCT-092:23:34PM | 19 | J | 382637 | 6938655 | 1262m | |
25 | 03-OCT-092:47:18PM | 19 | J | 383106 | 6938319 | 1169m | Mine |
26 | 03-OCT-093:16:12PM | 19 | J | 382889 | 6938084 | 1208m | Mine |
27 | 03-OCT-093:37:14PM | 19 | J | 383039 | 6938479 | 1201m | Mine |
28 | 03-OCT-093:48:44PM | 19 | J | 383046 | 6938482 | 1204m | Mine |
29 | 03-OCT-093:58:47PM | 19 | J | 383497 | 6938500 | 1169m | Mine |
30 | 04-OCT-098:18:51AM | 19 | J | 384810 | 6937628 | 1307m | |
31 | 04-OCT-098:33:57AM | 19 | J | 384878 | 6937904 | 1355m | Mine |
32 | 04-OCT-0911:49:51AM | 19 | J | 384575 | 6937826 | 1325m | Mine |
33 | 04-OCT-0912:15:15PM | 19 | J | 384683 | 6938001 | 1382m | Mine |
34 | 04-OCT-092:17:43PM | 19 | J | 383715 | 6938309 | 1174m | Mine |
35 | 04-OCT-092:28:06PM | 19 | J | 383889 | 6938276 | 1199m | |
36 | 05-OCT-098:07:41AM | 19 | J | 385698 | 6937916 | 1206m | |
37 | 05-OCT-098:27:58AM | 19 | J | 385471 | 6938095 | 1242m | |
38 | 05-OCT-098:42:16AM | 19 | J | 385435 | 6938095 | 1247m | |
39 | 05-OCT-098:49:29AM | 19 | J | 385414 | 6938100 | 1250m | |
40 | 05-OCT-098:55:58AM | 19 | J | 385389 | 6938097 | 1257m | |
41 | 05-OCT-099:02:35AM | 19 | J | 385375 | 6938094 | 1258m |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 86 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
42 | 05-OCT-099:15:12AM | 19 | J | 385363 | 6938083 | 1261m | |
43 | 05-OCT-099:23:08AM | 19 | J | 385342 | 6938083 | 1263m | |
44 | 05-OCT-099:27:01AM | 19 | J | 385335 | 6938083 | 1264m | |
45 | 05-OCT-099:35:24AM | 19 | J | 385322 | 6938089 | 1265m | |
46 | 05-OCT-099:39:55AM | 19 | J | 385290 | 6938084 | 1271m | |
47 | 05-OCT-099:44:09AM | 19 | J | 385280 | 6938079 | 1274m | |
48 | 05-OCT-099:46:19AM | 19 | J | 385274 | 6938053 | 1279m | |
49 | 05-OCT-099:48:55AM | 19 | J | 385265 | 6938031 | 1285m | |
50 | 05-OCT-099:52:27AM | 19 | J | 385257 | 6938025 | 1285m | |
51 | 05-OCT-099:55:39AM | 19 | J | 385251 | 6938019 | 1287m | |
52 | 05-OCT-099:59:13AM | 19 | J | 385241 | 6938014 | 1290m | |
53 | 05-OCT-0910:03:05AM | 19 | J | 385240 | 6938027 | 1289m | |
54 | 05-OCT-0910:05:53AM | 19 | J | 385238 | 6938043 | 1288m | |
55 | 05-OCT-0910:28:34AM | 19 | J | 385459 | 6937672 | 1269m | |
56 | 05-OCT-0910:31:43AM | 19 | J | 385489 | 6937643 | 1277m | |
57 | 05-OCT-0910:40:23AM | 19 | J | 385387 | 6937720 | 1264m | |
58 | 05-OCT-0910:52:02AM | 19 | J | 384770 | 6937671 | 1290m | |
59 | 05-OCT-0911:01:48AM | 19 | J | 384802 | 6937698 | 1299m | |
60 | 05-OCT-0911:13:28AM | 19 | J | 384839 | 6937735 | 1314m | |
61 | 05-OCT-0911:24:14AM | 19 | J | 384850 | 6937738 | 1322m | |
62 | 05-OCT-0911:32:22AM | 19 | J | 384850 | 6937731 | 1322m | |
63 | 05-OCT-0911:37:06AM | 19 | J | 384849 | 6937716 | 1322m | |
64 | 05-OCT-091:13:07PM | 19 | J | 384389 | 6937595 | 1251m | Mine |
65 | 05-OCT-091:22:03PM | 19 | J | 384374 | 6937575 | 1245m | Mine |
66 | 05-OCT-092:01:14PM | 19 | J | 384444 | 6937652 | 1252m | Mine |
67 | 05-OCT-092:22:09PM | 19 | J | 384533 | 6937640 | 1263m | |
68 | 05-OCT-092:29:47PM | 19 | J | 384591 | 6937572 | 1258m | Mine |
69 | 05-OCT-092:44:07PM | 19 | J | 384576 | 6937535 | 1261m | |
70 | 05-OCT-092:47:56PM | 19 | J | 384565 | 6937529 | 1259m | |
71 | 05-OCT-092:53:20PM | 19 | J | 384528 | 6937523 | 1262m | Mine |
72 | 05-OCT-093:30:19PM | 19 | J | 384706 | 6937756 | 1299m | |
73 | 05-OCT-093:40:28PM | 19 | J | 384687 | 6937806 | 1300m | Mine |
74 | 05-OCT-093:46:45PM | 19 | J | 384692 | 6937762 | 1300m | |
75 | 07-OCT-096:04:37AM | 19 | J | 385319 | 6937704 | 1239m | |
76 | 07-OCT-097:37:09AM | 19 | J | 384861 | 6937898 | 1371m | |
77 | 07-OCT-097:56:18AM | 19 | J | 384884 | 6937878 | 1370m | |
78 | 07-OCT-098:10:18AM | 19 | J | 384764 | 6937982 | 1389m | |
79 | 07-OCT-098:16:03AM | 19 | J | 384799 | 6937967 | 1392m | Mine |
80 | 07-OCT-098:56:03AM | 19 | J | 384747 | 6937931 | 1369m | |
81 | 07-OCT-099:04:20AM | 19 | J | 384726 | 6937969 | 1371m | |
82 | 07-OCT-099:18:13AM | 19 | J | 384692 | 6937984 | 1372m | Mine |
83 | 07-OCT-099:38:34AM | 19 | J | 384674 | 6937953 | 1365m | |
84 | 07-OCT-099:41:01AM | 19 | J | 384654 | 6937935 | 1360m |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 87 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
85 | 07-OCT-099:43:41AM | 19 | J | 384631 | 6937919 | 1360m | Mine |
86 | 07-OCT-099:53:09AM | 19 | J | 384604 | 6937877 | 1351m | Mine |
87 | 07-OCT-0910:07:54AM | 19 | J | 384564 | 6937838 | 1325m | Mine |
88 | 07-OCT-0910:20:29AM | 19 | J | 384542 | 6937861 | 1339m | |
89 | 07-OCT-0911:48:12AM | 19 | J | 384311 | 6937677 | 1279m | Mine |
90 | 07-OCT-0912:00:49PM | 19 | J | 384221 | 6937705 | 1290m | Mine |
91 | 07-OCT-0912:12:44PM | 19 | J | 384021 | 6937690 | 1272m | Mine |
92 | 07-OCT-0912:22:03PM | 19 | J | 384038 | 6937708 | 1272m | Mine |
93 | 07-OCT-0912:25:50PM | 19 | J | 384082 | 6937727 | 1269m | Mine |
94 | 07-OCT-0912:33:34PM | 19 | J | 384120 | 6937760 | 1260m | Mine |
95 | 07-OCT-0912:55:12PM | 19 | J | 384194 | 6937748 | 1276m | Mine |
96 | 07-OCT-091:05:34PM | 19 | J | 384302 | 6937743 | 1281m | Mine |
97 | 08-OCT-095:59:01AM | 19 | J | 386274 | 6942230 | 1217m | |
98 | 08-OCT-096:01:40AM | 19 | J | 386124 | 6941033 | 1295m | |
99 | 08-OCT-096:02:18AM | 19 | J | 386198 | 6940593 | 1313m | |
100 | 08-OCT-097:45:03AM | 19 | J | 384475 | 6937655 | 1256m | |
101 | 08-OCT-091:35:38PM | 19 | J | 383083 | 6938395 | 1193m | Mine |
102 | 08-OCT-091:36:07PM | 19 | J | 383140 | 6938377 | 1190m | Mine |
103 | 08-OCT-091:44:23PM | 19 | J | 383173 | 6938285 | 1168m | Mine |
104 | 08-OCT-091:59:37PM | 19 | J | 383113 | 6938307 | 1173m | |
105 | 08-OCT-092:18:34PM | 19 | J | 383137 | 6938338 | 1187m | |
106 | 08-OCT-092:22:21PM | 19 | J | 383164 | 6938315 | 1184m | Mine |
107 | 08-OCT-092:33:27PM | 19 | J | 383065 | 6938588 | 1244m | Mine |
108 | 08-OCT-092:43:36PM | 19 | J | 383055 | 6938647 | 1264m | Mine |
109 | 08-OCT-092:50:01PM | 19 | J | 383075 | 6938671 | 1263m | Mine |
110 | 08-OCT-092:53:10PM | 19 | J | 382888 | 6938657 | 1257m | |
111 | 08-OCT-093:06:00PM | 19 | J | 382976 | 6938286 | 1213m | |
112 | 08-OCT-093:15:14PM | 19 | J | 384199 | 6938457 | 1252m | Mine |
113 | 08-OCT-093:25:43PM | 19 | J | 384413 | 6938083 | 1302m | Mine |
114 | 08-OCT-093:28:24PM | 19 | J | 384478 | 6938128 | 1293m | Mine |
115 | 08-OCT-093:33:06PM | 19 | J | 384215 | 6937939 | 1287m | Mine |
116 | 08-OCT-094:02:30PM | 19 | J | 384626 | 6936948 | 1125m | Mine |
Cntct | 03-OCT-099:51:01AM | 19 | J | 384921 | 6938056 | 1432m | |
Cu8 | 03-OCT-0910:31:25AM | 19 | J | 384843 | 6938238 | 1436m | |
Cu9 | 03-OCT-0910:37:19AM | 19 | J | 384910 | 6938320 | 1404m | |
Dh10 | 03-OCT-092:17:43PM | 19 | J | 382617 | 6938643 | 1264m | |
Dh2 | 03-OCT-091:26:55PM | 19 | J | 382702 | 6938852 | 1261m | |
Dh5 | 03-OCT-091:30:36PM | 19 | J | 382637 | 6938828 | 1255m | |
Dh6 | 03-OCT-0912:44:19PM | 19 | J | 382732 | 6938908 | 1251m | |
Dh7 | 03-OCT-091:03:47PM | 19 | J | 382735 | 6938904 | 1251m | |
Dh9 | 03-OCT-092:04:54PM | 19 | J | 382661 | 6938739 | 1253m | Mine |
Dha | 03-OCT-099:05:31AM | 19 | J | 385181 | 6937996 | 1320m | |
Hilltop | 03-OCT-0910:08:02AM | 19 | J | 384812 | 6938105 | 1470m |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 88 of 89 |
Resource Geosciences de Mexico SA de CV | |
43-101 Technical Report on the Rosario Gold Prospect, Region III, Atacama, Chile |
Juan Valdivia | 04-OCT-0912:42:52PM | 19 | J | 384183 | 6938313 | 1244m | |
Mon | 03-OCT-099:33:25AM | 19 | J | 385067 | 6937969 | 1376m | |
Monb | 05-OCT-098:00:46AM | 19 | J | 385667 | 6937870 | 1209m | |
Monc | 05-OCT-0910:34:32AM | 19 | J | 385512 | 6937651 | 1277m | |
Mond | 05-OCT-0911:05:00AM | 19 | J | 384819 | 6937715 | 1304m | |
Mone | 05-OCT-0912:49:58PM | 19 | J | 384637 | 6937659 | 1278m | |
Monf | 05-OCT-092:20:16PM | 19 | J | 384514 | 6937617 | 1260m | |
Mong | 05-OCT-092:57:43PM | 19 | J | 384514 | 6937517 | 1267m | |
Monh | 05-OCT-092:59:49PM | 19 | J | 384506 | 6937573 | 1250m | |
Moni | 05-OCT-093:07:36PM | 19 | J | 384633 | 6937550 | 1273m | |
Simoneta | 03-OCT-098:40:29AM | 19 | J | 385176 | 6937999 | 1313m | |
Triador | 04-OCT-091:52:58PM | 19 | J | 383675 | 6938023 | 1163m | Mine |
Tunel Carmen | 04-OCT-091:27:49PM | 19 | J | 384118 | 6938404 | 1228m | Mine |
Matthew D. Gray C.P.G. #1068827 November 2009 revised 4 December 2009 Amended 7 December 2010 | Page 89 of 89 |