Exhibit 99.22
Notice to ASX
Rio Tinto Exploration Update – copper-gold mineralisation discovered in the Paterson Province in the far east Pilbara region of Western Australia
27 February 2019
Rio Tinto has discovered copper-gold mineralisation at the Winu project in the Yeneena Basin of the Paterson Province in Western Australia. The Winu project is located approximately 130 km north of the Telfer mine and 350 km southeast of Port Hedland.
The discovery was made by Rio Tinto Exploration (RTX) who are conducting a program targeted at finding copper mineralisation in the Paterson Province. The exploration program consisted of eight reverse circulation (RC) and twenty diamond holes drilled on exploration licence E45/4833 between December 2017 and the end of 2018, totalling 13,286 metres (1,473 m RC and 11,813 m diamond). Assays for all RC holes and fourteen diamond holes were received and validated at the time of preparing this release. Assays are pending for the remaining six diamond holes (partially or totally); partial results are included for two holes. Diamond drilling recommenced in mid-January 2019. Four holes have been completed for 1,409 metres during 2019 and are pending assay results.
Assay results to date indicate relatively wide intersections of copper mineralisation associated with gold and silver. Vein style copper, gold and silver mineralisation beneath relatively shallow cover which ranges from 50 to 100 m. The mineralisation remains open at depth and to the east, north and south.
While results are encouraging, the exploration project is still at an early stage and drilling to date does not allow sufficient understanding of the mineralised body to assess the potential size or quality of the mineralisation nor to enable estimation of a Mineral Resource. The assessment and interpretation of existing data is ongoing and will be used to help guide the drilling in 2019. Significant mineralised drill hole intercepts above 0.4% Cu or 0.4 g/t Au are shown in Table 1 below. More detailed mineralised intercepts are provided in Table 2.
Table 1:Significant mineralised drill hole intercepts >0.4% Cu or >0.4 g/t Au
Drill hole | Down hole (m) | Down hole length (m) | Copper (Cu %) | Gold (Au g/t) | Silver (Ag g/t) | |
From | To | |||||
RC17PAW0001 | 70 | 174 | 104 | 0.80 | 0.28 | 4.35 |
RC17PAW0002 | 193 | 204 | 11 | 0.47 | 0.21 | 2.60 |
RC18WIN0002 | 105 | 123 | 18 | 0.45 | 0.31 | 2.80 |
RC18WIN0002 | 158 | 219 | 61 | 0.57 | 0.52 | 4.23 |
RC18WIN0003 | 77 | 148 | 71 | 1.02 | 0.49 | 5.14 |
WIDI0007 | 60 | 120 | 60 | 1.03 | 1.22 | 4.30 |
WINU0001 | 135 | 156 | 21 | 1.00 | 0.72 | 7.58 |
WINU0001 | 163 | 174 | 11 | 0.80 | 0.39 | 4.81 |
WINU0003 | 140 | 579 | 439 | 0.42 | 0.32 | 2.45 |
WINU0003 | 656 | 664 | 8 | 0.50 | 0.38 | 2.23 |
WINU0003 | 710 | 719 | 9 | 0.48 | 0.67 | 2.19 |
Page 1 of 15
Down hole (m) | Down hole length (m) | Copper (Cu %) | Gold (Au g/t) | Silver (Ag g/t) | ||
From | To | |||||
WINU0004 | 88 | 233 | 145 | 0.43 | 0.48 | 3.09 |
WINU0006 | 68 | 809 | 741 | 0.45 | 0.52 | 2.94 |
WINU0007 | 244 | 274 | 30 | 0.40 | 0.21 | 2.40 |
WINU0007 | 318 | 663 | 345 | 0.41 | 0.31 | 2.68 |
WINU0008 | 197 | 214 | 17 | 0.77 | 0.76 | 4.56 |
WINU0009 | 179 | 191 | 12 | 0.54 | 0.36 | 3.75 |
WINU0009 | 604 | 619 | 15 | 0.76 | 0.25 | 4.71 |
WINU0010 | 122 | 135 | 13 | 0.71 | 0.54 | 3.66 |
WINU0010 | 222 | 257 | 35 | 0.97 | 0.46 | 6.50 |
WINU0011 | 276 | 775 | 499 | 0.40 | 0.20 | 2.33 |
WINU0012 | 95 | 241 | 146 | 0.43 | 0.39 | 2.81 |
WINU0013 | 91 | 160 | 69 | 0.51 | 0.26 | 3.94 |
WINU0013 | 215 | 687 | 472 | 0.43 | 0.35 | 2.69 |
WINU0014 | 78 | 99 | 21 | 0.41 | 0.11 | 2.30 |
WINU0014 | 110 | 121 | 11 | 0.45 | 0.19 | 1.91 |
WINU0014 | 185 | 377 | 192 | 0.40 | 0.37 | 2.69 |
WINU0014 | 450 | 465 | 15 | 1.08 | 0.49 | 5.10 |
WINU0015 | 100 | 211 | 111 | 0.41 | 0.22 | 2.53 |
WINU0015 | 226 | 263 | 37 | 0.69 | 0.23 | 2.41 |
WINU0017 | 326 | 522 | 196 | 0.46 | 0.23 | 2.60 |
WINU0018 | 213 | 456 | 243 | 0.36 | 0.21 | 2.25 |
WINU0019 | 100 | 204 | 104 | 0.57 | 0.56 | 3.37 |
WINU0024 | 97 | 258 | 161 | 0.57 | 0.46 | 3.25 |
The Winu exploration camp is located approximately 200 km by gravel and sand track from the Great Northern Highway. The camp is a seven hour drive from Port Hedland, which poses a significant safety risk. A gravel airstrip is being constructed at Winu for emergency response purposes. In addition, the sand section of the track will be upgraded for logistics supply purposes.
In conjunction with the ongoing work at Winu, RTX will continue to explore its adjacent wholly owned licences and joint venture licences within the Paterson Province.
Information on the criteria listed in the JORC Table 1 checklist in The Australasian Code for the Reporting of Exploration Results, Mineral Resources and Ore Reserves (the JORC Code, 2012 Edition) relating to these exploration results is attached to this release.
Project History
The Winu project is located within the Exploration Licence E45/4833 which lies within both the Nyangumarta and Martu Native Title Determination areas. It is approximately 130 km north of the Telfer deposit in the Paterson Province of WA (Figure 1). Target generation began in 2016 with regional interpretation, area selection,
tenement application followed by additional geophysical surveys in 2017. The ground target testing began in late 2017 with the completion of two RC drill holes.
An 80-person temporary exploration camp was constructed in stages throughout 2018.
Competent Persons Statement
The information in this report that relates to Exploration Results is based on information compiled by Dr Jacques Batumike Mwandulo who is a Member of the Australasian Institute of Mining and Metallurgy (MAusIMM) and has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity to which he is undertaking to qualify as a competent person as defined in the 2012 edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Dr Jacques Batumike Mwandulo is a full-time employee of Rio Tinto Exploration and consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Table 2: Detailed intercepts above >0.2% Cu or 0.2 g.t Au
Drill hole | Down hole (m) | Down hole length (m) | Copper (Cu %) | Gold (Au g/t) | Silver (Ag g/t) | |
From | To | |||||
RC17PAW0001 | 70 | 174 | 104 | 0.80 | 0.28 | 4.35 |
RC17PAW0001 incl | 72 | 83 | 11 | 2.23 | 0.24 | 8.44 |
RC17PAW0001 incl | 143 | 174 | 31 | 1.13 | 0.35 | 7.02 |
RC17PAW0002 | 71 | 79 | 8 | 0.74 | 0.31 | 3.23 |
RC17PAW0002 | 98 | 144 | 46 | 0.44 | 0.29 | 2.21 |
RC17PAW0002 incl | 98 | 120 | 24 | 0.50 | 0.32 | 2.14 |
RC17PAW0002 | 173 | 182 | 9 | 0.44 | 0.53 | 1.80 |
RC17PAW0002 | 193 | 204 | 11 | 0.47 | 0.21 | 2.60 |
RC18WIN0001 | 118 | 133 | 15 | 0.24 | 0.18 | 0.76 |
RC18WIN0001 | 190 | 204 | 14 | 0.24 | 0.23 | 1.08 |
RC18WIN0002 | 105 | 123 | 18 | 0.45 | 0.31 | 2.80 |
RC18WIN0002 | 158 | 219 | 61 | 0.57 | 0.52 | 4.23 |
RC18WIN0003 | 77 | 148 | 71 | 1.02 | 0.49 | 5.14 |
RC18WIN0003 incl | 77 | 90 | 13 | 2.07 | 0.52 | 5.52 |
RC18WIN0003 incl | 104 | 136 | 32 | 1.15 | 0.53 | 6.59 |
WB18WIN0002 | 98 | 111 | 13 | 0.20 | 0.12 | 1.40 |
WB18WIN0002 | 130 | 142 | 12 | 0.27 | 0.20 | 1.76 |
WIDI0007 | 60 | 120 | 60 | 1.03 | 1.22 | 4.30 |
WIDI0007 incl | 82 | 102 | 20 | 1.05 | 1.96 | 5.33 |
WIDI0007 incl | 105 | 120 | 15 | 1.94 | 0.85 | 4.63 |
WINU0001 | 75 | 481 | 406 | 0.29 | 0.24 | 1.90 |
WINU0001 incl | 135 | 156 | 21 | 1.00 | 0.72 | 7.58 |
WINU0001 incl | 163 | 174 | 11 | 0.80 | 0.39 | 4.81 |
WINU0003 | 140 | 579 | 439 | 0.42 | 0.32 | 2.45 |
WINU0003 incl | 157 | 174 | 17 | 0.81 | 0.36 | 5.01 |
WINU0003 incl | 194 | 206 | 12 | 0.57 | 0.59 | 3.44 |
WINU0003 incl | 299 | 306 | 7 | 0.98 | 0.54 | 4.40 |
WINU0003 incl | 315 | 321 | 6 | 2.78 | 0.78 | 17.31 |
WINU0003 incl | 452 | 481 | 29 | 0.76 | 0.40 | 3.84 |
WINU0003 | 656 | 664 | 8 | 0.50 | 0.38 | 2.23 |
Drill hole | Down hole (m) | Down hole length (m) | Copper (Cu %) | Gold (Au g/t) | Silver (Ag g/t) | |
From | To | |||||
710 | 719 | 9 | 0.48 | 0.67 | 2.19 | |
WINU0004 | 88 | 233 | 145 | 0.43 | 0.48 | 3.09 |
WINU0004 incl | 88 | 94 | 6 | 4.69 | 2.52 | 26.41 |
WINU0006 | 46 | 809 | 763 | 0.44 | 0.65 | 2.88 |
WINU0006 incl | 46 | 100 | 54 | 0.25 | 5.43 | 1.75 |
WINU0006 incl | 111 | 304 | 193 | 0.83 | 0.47 | 5.49 |
WINU0006 incl | 339 | 350 | 11 | 1.60 | 1.06 | 11.36 |
WINU0006 incl | 478 | 491 | 13 | 0.79 | 0.40 | 5.42 |
WINU0006 incl | 520 | 528 | 8 | 0.87 | 0.57 | 5.84 |
WINU0006 incl | 625 | 635 | 10 | 0.77 | 0.34 | 5.83 |
WINU0006 incl | 729 | 735 | 6 | 0.99 | 0.64 | 3.27 |
WINU0007 | 211 | 218 | 7 | 0.43 | 0.12 | 3.13 |
WINU0007 | 244 | 274 | 30 | 0.40 | 0.21 | 2.40 |
WINU0007 | 278 | 283 | 5 | 0.42 | 0.17 | 3.13 |
WINU0007 | 285 | 292 | 7 | 0.61 | 0.20 | 3.15 |
WINU0007 | 318 | 663 | 345 | 0.41 | 0.31 | 2.68 |
WINU0007 incl | 338 | 348 | 10 | 1.66 | 0.27 | 11.34 |
WINU0007 incl | 417 | 430 | 13 | 0.99 | 0.19 | 6.80 |
WINU0007 incl | 529 | 546 | 17 | 0.37 | 1.43 | 2.26 |
WINU0007 incl | 576 | 590 | 14 | 0.65 | 0.19 | 3.13 |
WINU0008 | 96 | 358 | 262 | 0.27 | 0.30 | 1.61 |
WINU0008 incl | 197 | 214 | 17 | 0.77 | 0.76 | 4.56 |
WINU0009 | 73 | 83 | 10 | 0.24 | 0.04 | 0.76 |
WINU0009 | 104 | 326 | 222 | 0.20 | 0.18 | 1.40 |
WINU0009 incl | 113 | 120 | 7 | 1.06 | 0.37 | 3.22 |
WINU0009 incl | 165 | 172 | 7 | 0.53 | 0.59 | 3.44 |
WINU0009 incl | 179 | 191 | 12 | 0.54 | 0.36 | 3.75 |
WINU0009 | 338 | 662 | 324 | 0.25 | 0.16 | 1.48 |
WINU0009 incl | 344 | 349 | 5 | 0.86 | 0.27 | 3.79 |
WINU0009 incl | 604 | 619 | 15 | 0.76 | 0.25 | 4.71 |
WINU0010 | 109 | 474 | 365 | 0.27 | 0.24 | 1.64 |
WINU0010 incl | 122 | 135 | 13 | 0.71 | 0.54 | 3.66 |
WINU0010 incl | 222 | 257 | 35 | 0.97 | 0.46 | 6.50 |
WINU0011 | 112 | 130 | 18 | 0.22 | 0.74 | 0.81 |
WINU0011 | 276 | 775 | 499 | 0.40 | 0.20 | 2.33 |
WINU0011 incl | 556 | 570 | 14 | 1.25 | 0.52 | 8.66 |
WINU0011 incl | 627 | 648 | 21 | 0.98 | 0.28 | 5.88 |
WINU0011 incl | 696 | 719 | 23 | 1.03 | 0.24 | 4.37 |
WINU0012 | 94 | 396 | 302 | 0.25 | 0.27 | 1.55 |
WINU0012 | 95 | 241 | 146 | 0.43 | 0.39 | 2.81 |
WINU0013 | 91 | 160 | 69 | 0.51 | 0.26 | 3.94 |
WINU0013 | 215 | 687 | 472 | 0.43 | 0.35 | 2.69 |
WINU0014 | 78 | 99 | 21 | 0.41 | 0.11 | 2.30 |
WINU0014 | 110 | 121 | 11 | 0.45 | 0.19 | 1.91 |
Drill hole | Down hole (m) | Down hole length (m) | Copper (Cu %) | Gold (Au g/t) | Silver (Ag g/t) | |
From | To | |||||
161 | 170 | 9 | 0.46 | 0.29 | 2.73 | |
WINU0014 | 185 | 377 | 192 | 0.40 | 0.37 | 2.69 |
WINU0014 | 399 | 408 | 9 | 0.51 | 0.29 | 2.49 |
WINU0014 | 450 | 465 | 15 | 1.08 | 0.49 | 5.10 |
WINU0015 | 94 | 496 | 402 | 0.24 | 0.18 | 1.18 |
WINU0015 | 100 | 211 | 111 | 0.41 | 0.22 | 2.53 |
WINU0015 | 226 | 263 | 37 | 0.69 | 0.23 | 2.41 |
WINU0017 | 326 | 522 | 196 | 0.46 | 0.23 | 2.6 |
WINU0018 | 213 | 456 | 243 | 0.36 | 0.21 | 2.25 |
WINU0019 | 100 | 204 | 104 | 0.57 | 0.56 | 3.37 |
WINU0024 | 97 | 258 | 161 | 0.57 | 0.46 | 3.25 |
WINU0024 incl | 97 | 117 | 20 | 1.01 | 1.10 | 3.78 |
WINU0024 incl | 191 | 226 | 35 | 0.74 | 0.39 | 4.64 |
Figure 1: Location map of the Winu project
Figure 2: Drill collar location plan for Winu with section line locations
Figure 3: Cross sections through Winu mineralisation
The following table provides a summary of important assessment and reporting criteria used at the Winu project ifor the reporting of Exploration Results in accordance with the Table 1 checklist in The Australasian Code for the Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code, 2012 Edition). Criteria in each section apply to all preceding and succeeding sections.
SECTION 1 SAMPLING TECHNIQUES AND DATA
SECTION 2 REPORTING OF EXPLORATION RESULTS
Criteria | Commentary |
Mineral tenement and land tenure status | •All Rio Tinto Exploration tenements are kept with respect to the legislation in terms of obligations including minimum expenditure. This project is located within Exploration Licence E45/4833, which is 100 % owned by RTX and expires on the 12th of October 2022. |
Exploration done by other parties | •No exploration has been carried out in the Winu area prior to RTX work in 2016. |
Geology | •The prospect is located on the Anketell Shelf of the Yeneena Basin, a Neoproterozoic sequence of metasedimentary rocks and granitoids that is entirely covered by Phanerozoic sediments, up to 100 m thick in the Winu area. •The main lithologies intercepted by the current drilling at Winu include metasedimentary rocks (quartzites, metasandstones, metasiltstones and metapelites), unmetamorphosed sedimentary cover rocks (conglomerates, arkoses, psammites and mudstones), granite and dolerite. Host rocks to copper-gold mineralisation are fine to medium-grained subarkosic metasandstones and biotite-rich metasiltstones. •The mineralisation is predominantly vein controlled. Sulphides include chalcopyrite, chalcocite, pyrite, pyrrothite, molybdenite, bornite, scheelite, bismuthite and wulframite. At least six generations of veins are identified and characterised each by different mineralogical assemblages and textures. The main mineralisation event is associated with quartz-sulphide (K-feldspar) and sulphide-carbonate veins with dominantly K-feldspar, muscovite, biotite and/or chlorite wallrock alteration. •Primary sulphide mineralisation is overlain by a supergene blanket containing secondary copper minerals as well as native copper in places.
|
Drill hole Information | •Appendix 1 provides details of drill hole coordinates, orientations and length for all drill holes, including those pending validated results. |
Data aggregation methods | •The average grades presented in this report are all length-weighted averages above a 0.2% Cu, 0.2 g/t Au, 0.4% Cu or 0.4 g/t Au cut-off as noted. |
Relationship between mineralisation widths and intercept lengths | •Insufficient data is available to confirm the geological model and as such all results are reported in apparent width; the true width is still unknown.
|
•Plans are included in the release as below: •Location Map (Figure 1), Drillhole collar plan (Figure 2) and Winu Cross sections (Figure 3 and Figure 4) | |
Balanced reporting | •This is the first release of available exploration results for this deposit. •Results for all available holes are reported. |
Other substantive exploration data | •Specific gravity measurements were taken on 20 cm of solid core for every 20 m, representing different lithologies and mineralised intervals. The measurement used the hydrostatic/gravimetric method (Archimeds Principle of buoyancy). •Magnetic susceptibility was measured for each sample using KT-10 (kappameter) instrument. •Geophysical surveys were carried out over the deposit area including airborne electromagnetics, ground gravity, induced polarisation/resistivity, passive seismic, and downhole density, gamma, conductivity, resistivity, induced polarisation, magnetic susceptibility and acoustic televiewer. •Geometallurgical characterisation was conducted on the first RC holes, which indicated satisfactory results however further tests are required to confirm potential recovery. •WorldView2 images were acquired for help in better planning and reporting of the exploration program. |
Further work | •RTX is still evaluating and interpreting the results from the 2018 work program which will help guide further work in 2019. •The results presented here indicate the mineralisation is not closed off by the 2018 drilling. •Preliminary metallurigical test work is planned for 2019. •In addition to the ongoing work at Winu, RTX will conduct exploration within the broader Paterson Province on its wholly owned licences and joint venture licences during 2019. |
Appendix 1Drill hole coordinates, orientations and depths
The data for the collars are provided in the Geocentric Datum of Australia (GDA94 zone 51)
Drill hole | Easting (mE) | Northing (mN) | Elevation (mRL) | Down hole depth (m) | Dip | Azimuth | Hole type | Hole Status |
RC17PAW0001 | 369093.00 | 7708170.00 | 246.00 | 174 | 60 | 260 | RC | Assays Received |
RC17PAW0002 | 369020.00 | 7708163.00 | 245.00 | 216 | 60 | 260 | RC | Assays Received |
RC18WIN0001 | 369390.00 | 7708180.00 | 248.00 | 213 | 70 | 260 | RC | Assays Received |
RC18WIN0002 | 368936.00 | 7708477.00 | 249.00 | 246 | 70 | 80 | RC | Assays Received |
RC18WIN0003 | 369104.00 | 7707867.00 | 245.00 | 150 | 70 | 260 | RC | Assays Received |
WB18WIN0001 | 370866.00 | 7707009.00 | 248.00 | 141 | 90 | 0 | RC | Abandoned |
WB18WIN0002 | 368808.00 | 7708143.00 | 246.00 | 150 | 90 | 0 | RC | Assays Received |
WIDI0007 | 369110.00 | 7707564.00 | 248.00 | 120 | 90 | 0 | RC | Assays Received |
WINU0001 | 369088.00 | 7708169.00 | 245.00 | 600.8 | 60 | 260 | DD | Assays Received |
WINU0002 | 369242.00 | 7708179.00 | 248.00 | 56.2 | 60 | 260 | DD | Abandoned |
WINU0003 | 369241.00 | 7708178.00 | 246.00 | 770.4 | 60 | 260 | DD | Assays Received |
WINU0004 | 369102.00 | 7707867.00 | 245.00 | 520.1 | 60 | 260 | DD | Assays Received |
WINU0005 | 368944.00 | 7708166.00 | 245.00 | 147.9 | 60 | 80 | DD | Abandoned |
WINU0006 | 368939.00 | 7708158.00 | 245.00 | 809.8 | 60 | 80 | DD | Assays Received |
WINU0007 | 369402.00 | 7707881.00 | 245.00 | 723.6 | 60 | 260 | DD | Assays Received |
WINU0008 | 368945.00 | 7708167.00 | 253.00 | 555.8 | 60 | 260 | DD | Assays Received |
WINU0009 | 368933.00 | 7708471.00 | 248.00 | 685.3 | 60 | 80 | DD | Assays Received |
WINU0010 | 369279.00 | 7707575.00 | 247.00 | 513.3 | 60 | 260 | DD | Assays Received |
WINU0011 | 369392.00 | 7708183.00 | 253.00 | 807.4 | 70 | 260 | DD | Assays Received |
WINU0012 | 369192.00 | 7707566.00 | 267.00 | 473.8 | 70 | 260 | DD | Assays Received |
WINU0013 | 368934.00 | 7708477.00 | 254.00 | 686.6 | 70 | 80 | DD | Assays Received |
WINU0014 | 369258.00 | 7707869.00 | 263.00 | 492.9 | 60 | 260 | DD | Assays Received |
WINU0015 | 369314.00 | 7707284.00 | 268.00 | 534.8 | 60 | 260 | DD | Assays Received |
WINU0016 | 368951.00 | 7707856.00 | 250.00 | 56.2 | 60 | 80 | DD | Abandoned |
WINU0017 | 368954.00 | 7707861.00 | 254.00 | 531.8 | 60 | 80 | DD | Partial Assays Received |
WINU0018 | 369471.00 | 7707294.00 | 244.00 | 501.8 | 60 | 260 | DD | Partial Assays Received |
WINU0019 | 369275.00 | 7707574.00 | 268.00 | 204 | 60 | 260 | RC | Assays Received |
WINU0020 | 369419.00 | 7707579.00 | 255.00 | 1000 | 60 | 260 | DD | Assays Pending |
WINU0021 | 368988.00 | 7707559.00 | 247.00 | 61.6 | 60 | 260 | DD | Abandoned |
WINU0022 | 368988.00 | 7707556.00 | 248.00 | 90 | 60 | 260 | DD | Abandoned |
WINU0023 | 369276.00 | 7707573.00 | 254.00 | 38.4 | 60 | 260 | DD | Abandoned |
WINU0024 | 369280.00 | 7707578.00 | 268.00 | 269.9 | 60 | 260 | DD | Assays Received |
WINU0025 | 368988.00 | 7707554.00 | 247.00 | 90.6 | 60 | 260 | DD | Abandoned |
WINU0026 | 369330.00 | 7707131.00 | 248.00 | 429.6 | 60 | 260 | DD | Assays Pending |
WINU0027 | 369171.00 | 7707269.00 | 245.00 | 32.2 | 60 | 260 | DD | Abandoned |
WINU0028 | 369483.00 | 7707146.00 | 246.00 | 546.8 | 60 | 260 | DD | Assays Pending |
WINU0029 | 368801.00 | 7707863.00 | 248.00 | 358.6 | 60 | 260 | DD | Assays Pending |
WINU0030 | 368783.00 | 7708460.00 | 245.00 | 60.4 | 60 | 260 | DD | Abandoned |
WINU0031 | 369612.00 | 7707311.00 | 252.00 | 476.7 | 60 | 260 | DD | Assays Pending |
WINU0033 | 368789.00 | 7708465.00 | 252.00 | 0 | 60 | 260 | DD | Abandoned |
WINU0034 | 369547.00 | 7706865.00 | 258.00 | 395.1 | 60 | 260 | DD | Assays Pending |
Drill hole | Easting (mE) | Northing (mN) | Elevation (mRL) | Down hole depth (m) | Dip | Azimuth | Hole type | Hole Status |
369673.00 | 7706408.00 | 257.00 | 282 | 60 | 260 | DD | Assays Pending | |
WINU0036 | 369683.00 | 7706800.00 | 258.00 | 255.1 | 60 | 260 | DD | Assays Pending |
media.enquiries@riotinto.com
riotinto.com
Follow @RioTinto on Twitter
Media Relations United Kingdon Illtud Harri T +44 20 7781 1152 M +44 7920 503 600
David Outhwaite T +44 20 7781 1623 M +44 7787 597 493
Media Relations, Americas Matthew Klar T +1 514 608 4429
Media Relations, Asia Grant Donald T +65 6679 9290 M +65 9722 6028
| Media Relations, Australia Jonathan Rose T +61 3 9283 3088 M +61 447 028 913
Matt Chambers T +61 (0) 3 9283 3087 M +61 433 525 739
Jesse Riseborough T +61 8 6211 6013 M +61 436 653 412
|
Investor Relations, United Kingdom John Smelt T +44 20 7781 1654 M +44 7879 642 675
David Ovington T +44 20 7781 2051 M +44 7920 010 978
Nick Parkinson T +44 20 7781 1552 M +44 7810 657 556
|
Investor Relations, Australia Natalie Worley T +61 3 9283 3063 M +61 409 210 462
Rachel Storrs T +61 3 9283 3628 M +61 417 401 018
|
|
|
Rio Tinto plc 6 St James’s Square London SW1Y 4AD United Kingdom
T +44 20 7781 2000 No. 719885 | Rio Tinto Limited Level 7, 360 Collins Street Melbourne 3000 Australia
T +61 3 9283 3333 Registered in Australia ABN 96 004 458 404 |