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TRUE NORTH COPPER LIMITED — Capital/Financing Update 2021
Feb 24, 2021
65934_rns_2021-02-24_dfbf5188-4950-4252-af56-96df4452a06e.pdf
Capital/Financing Update
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ASX Announcement
Media Release
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EPM 27609 OVER THE WAITARA COPPER AND SILVER PORPHYRY IS GRANTED
FEBRUARY 25, 2021
Duke Exploration (ASX Code: DEX) is pleased to announce that the tenement application (EPM 27609) over the Waitara porphyry 20 km north east of the Bundarra pluton has been granted for five years. This offers additional opportunities based on historic results for resource discoveries through exploration close to the Bundarra project.
Highlights
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EPM 27609, which covers the Waitara Porphyry prospect, has been granted to Duke Exploration Limited for a term of 5 years from 18 February 2021 to 17 February 2026 over a total area of 6 sub-blocks,
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Intersections from the historic drilling drilled between 1972-1979 and not reported to date by the Company include:
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24.0 m from 46.0 m at 0.31 Cu % in W-0,
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12.0 m from 74.0 m at 0.43 Cu % in W-01,
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44.0 m from 92.0 m at 0.29 Cu % in W-01,
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18.0 m from 132.0 m at 0.23 Cu % in W-02,
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34.0 m from 44.0 m at 0.26 Cu % in W-08,
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16.0 m from 22.0 m at 2.14 Cu % in W-PDH3,
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19.0 m from 38.0 m at 0.37 Cu % in W-PDH9,
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102.0 m from 28.0 m at 0.22 Cu % in WTDH001,
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99.0 m from 11.0 m at 0.35 Cu % in WTDH002.
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The geology of the tenement is similar to the geology of the Bundarra pluton, but at a smaller scale,
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Little exploration has been conducted since the 1970s and most of the historic drillholes are shallow and vertical and are unlikely to have tested the porphyry mineralisation adequately.
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No modern geophysics has been carried out on the tenement and therefore there is the potential to identify new drill targets using these techniques. Electrical geophysical methods such as 3D IP
Duke Exploration Limited ABN 28 119 421 868 PO Box 765 Kenmore Q 4069 AUSTRALIA www.duke-exploration.com.au
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and VTEM have been shown to accurately map sulphide mineralisation at Bundarra and similar methods could be successful at Waitara.
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Based on laboratory turnaround times to date, the results from the next line to the south are expected to be finalised for announcing by early-March, the results of the line to the north by mid-March and the results from the drilling of the three holes into the VTEM anomaly by early April,
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Electrical geophysical surveys and pXRF soil sampling to follow up and test the extensions of the anomalies discovered at Quorn continued, with results expected by the end of March.
Details of the work reported in this announcement are outlined in Appendix 1 - JORC Code , 2012 Edition, Checklist of Assessment and Reporting Criteria.
Commenting on progress - Toko Kapea, Chairman:
“We are pleased to have the Waitara tenement granted as this will allow us to get on the ground to confirm the interesting historic exploration results from past explorers. Waitara is only 20 km to the east of Bundarra with the main access on sealed roads, so any discovery could easily be transported to Bundarra that would add to the potential resource base that is being developed from our exciting results to date. We look forward to adding resources from this new opportunity in the future and like Bundarra expect a few surprises along the way. ”
Q1 and Q2 Work Programmes
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Continue the phase two infill drilling at Mt Flora guided by the results from the phase one drilling,
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Complete pattern resource drilling at the Quarry Anomaly focussing on the higher grade northern strike extension (this drilling has started),
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Complete follow up geophysics surveys at Quorn to allow planning of a drilling programme to test the results from this work,
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Extend the gradient array and pXRF soil sampling to cover anomalous areas from the Quorn surveys that are open,
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Complete gradient array and pXRF soil surveys over the Isens Underground mine area, with the aim of starting drill testing by the second quarter of 2021,
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Finalise land access and drill planning at the Prairie Creek gold target,
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Source a second rig to fast-track resource and exploration drilling over Mt Flora, Quorn and the Quarry prospects.
This announcement has been authorised for release by the Board.
Toko Kapea Chairman - t.kapea@duke exploration.com.au Ph+64 27 534 2886
Eugene Iliescu Managing Director - md@duke exploration.com.au Ph +61 418 757 364
Duke Exploration Limited
www.duke-exploration.com.au
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Technical Information
Waitara Porphyry Prospect
The Waitara Porphyry prospect is covered by EPM 27609, which has been granted to Duke Exploration Limited for a term of 5 years from 18 February 2021 to 17 February 2026 over a total area of 6 sub-blocks. The tenement now forms part of the Bundarra project in eastern Central Queensland, 80 km southwest of Mackay and the tenement is 20 km northeast of Bundarra (Figure 1). Access to the area is via the Bruce Highway from Mackay to Sarina (35 km), and then via minor roads to the project area (80 km).
Figure 1: Location of Bundarra Project (EPM 26499 (Bundarra), EPM 27474 (Duania) and EMP 27609 (Waitara)) compared to historic prospects and main target areas.
EPM 27609 is located on the eastern margin of the Bowen Basin and covers similar age geology to the Bundarra tenement 20 km to the west. The east of the tenement, including the Waitara Porphyry prospect, comprises Devonian-Carboniferous felsic to intermediate volcanics (lava, ignimbrite, tuff, agglomerate, and volcanic sediments) and subordinate granite. There is poor outcrop to the west of the tenement, which is flat-lying and covered by Cainozoic alluvium and Tertiary basalt. The Devonian-Carboniferous lithologies are unconformably overlain by Lizzie Creek Volcanics that comprise west-dipping andesite and sediments, which are themselves unconformably overlain by marine Bowen Basin sediments. The Lizzie Creek Volcanics are Early Permian in age and are unconformably overlain by a Lower Permian sequence of fine-grained sediments and mafic volcanics that represent the first true succession of the Bowen Basin coal measures.
Duke Exploration Limited
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The Waitara Granite crops out 200 m north of the Waitara Porphyry prospect, and is a pinkish-grey, fine to medium-grained, porphyritic biotite-hornblende monzonite to monzogranite with plagioclase and hornblende phenocrysts and is assigned an early Cretaceous age similar to Bundarra (Figure 2). The granodiorite contains numerous roof pendants, indicating that the rocks exposed at the surface represent the top of an intrusive body. The host Permian lithologies are crosscut by post-mineral porphyritic diorite and granodiorite dykes and overlain by andesitic tuff and ignimbrite (Figure 2). The porphyry is locally covered by a silicified volcanic cap that contains abundant fracture filling and disseminated limonite, reflecting weathering of sulfides that comprised 1-5 vol% of the un-weathered rocks. Traces of copper oxide mineralisation occurs within the cap rocks and they are also variably affected by sericite and clay alteration.
There are three historic prospects located within the tenement that have been the focus for historic exploration (Figure and Figure 2). The Waitara Porphyry Prospect is the most advanced with the most work done to date. The major metallic minerals described from the exploration to date are pyrite, chalcopyrite, molybdenite and magnetite. Phyllic and propylitic alteration are common but potassic alteration is rare and supergene enrichment is weak.
Figure 2. Geology map of the Waitara prospect tenement EMP 27609.
Duke Exploration Limited
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Figure 3. State-wide magnetic imagery (TMI) over the Bundarra and Waitara tenements.
The prospects in EMP 27609 occur along the edge of a well-defined arcuate magnetic high that encloses a circular magnetic low (Figure 3), which is interpreted to be a buried intrusion like Bundarra. The signature of the magnetic high is similar to that of the Bundarra granodiorite and may represent a later, more mafic magma that intruded along the margin of an older more felsic intrusive body.
All available historic exploration data have been compiled for the Waitara tenement area and integrated into the Bundarra project databases. The data collected include 631 drillholes, 575 soil samples, 179 stream sediment samples, 85 rock chips, several geology maps and cross-sections, gridded magnetic-radiometric data, and several historic geophysical images. The data have been checked and QAQC carried out, with the data being reasonable quality.
A total of 631 drillholes have been completed in the tenement area for a total of 6,724m of drilling (Figure and Appendix 1). Most are shallow RAB holes, with only 18 holes drilled past 60m down hole (Appendix 1). Better intersections from the deeper holes that are listed in full in Appendix 2 include:
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24.0 m from 46.0 m at 0.31 Cu % in W-0,
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12.0 m from 74.0 m at 0.43 Cu % in W-01,
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44.0 m from 92.0 m at 0.29 Cu % in W-01,
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18.0 m from 132.0 m at 0.23 Cu % in W-02,
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34.0 m from 44.0 m at 0.26 Cu % in W-08,
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16.0 m from 22.0 m at 2.14 Cu % in W-PDH3,
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• 19.0 m from 38.0 m at 0.37 Cu % in W-PDH9,
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102.0 m from 28.0 m at 0.22 Cu % in WTDH001,
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99.0 m from 11.0 m at 0.35 Cu % in WTDH002.
Duke Exploration Limited
www.duke-exploration.com.au
6
Figure 4. Historic collar locations and hole types of holes drilled between 1972 and 1979 compiled over the granted Waitara tenement area listed in Appendix 1.
Figure 5. Historic drillholes drilled between 1972-1979 coloured by maximum copper assay listed in Appendix 1.
Duke Exploration Limited www.duke-exploration.com.au
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All but two of the historic drill holes were drilled between 1972 and 1979 under EPM 1091. Most holes intersected significant copper mineralisation associated with elevated molybdenum (Figure 5 and Appendix 1). Importantly most holes were only assayed for copper and molybdenum and therefore the total metal endowment of the deposit is not well understood. Only 82 samples from 12 percussion holes were assayed for gold; one sample returned 0.1 ppm Au and the rest were below the detection limit (0.1 ppm Au). A total of 582 samples were analysed for silver (only 20% of the total number of samples), with a maximum assay of 640 ppm Ag, which is similar to the mineralisation at Bundarra. The highest copper grades were returned from W-PDH3, a percussion hole drilled at the Waitara Porphyry prospect, that intersected 16 m @ 2.14% Cu, including 2 m at 6.0 % Cu from 22 m down hole. The deeper holes into the Waitara Porphyry intersected wide intervals of low-grade copper mineralisation. For example, the whole length of W-01 was mineralised, returning 305 m @ 0.2% Cu and 69 ppm Mo (Appendix 2). Some of the holes at Denison Creek intersected significant copper mineralisation as listed in Appendix 2. However, the results were generally less encouraging than Waitara. The copper intersected to date defines a 2 km[2] zone of copper mineralisation around the Waitara Porphyry Prospect and a smaller area around Denison Creek (Figure ).
The historic data confirm the initial assessment that the Waitara tenement is highly prospective for porphyry copper-molybdenum mineralisation similar to that currently being explored at Bundarra. The Waitara Porphyry Prospect is clearly the main target in the tenement, having returned several encouraging drill intersections of broad, low-grade Cu-Mo mineralisation and adds another target for development to the Bundarra project.
Little exploration has been conducted in the area since the 1970s, most of the drillholes are shallow and vertical and are therefore unlikely to have completely tested the potential of the tenement. No modern geophysics has been carried out at Waitara and therefore there is the potential to identify new drill targets using these techniques. Electrical geophysical methods such as 3D IP and VTEM have been shown to accurately map sulphide mineralisation at Bundarra and similar methods would likely be successful at Waitara.
About Duke Exploration
Duke is an Australian exploration company with majority interests in five granted exploration tenements for copper, gold and silver exploration areas located in Queensland and New South Wales, Australia.
Duke’s key assets comprise:
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EPM26499, EPM2747 and EPM 27609 – Bundarra Project (100% owned copper exploration project near Mackay, Queensland),
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EPM 26852 – Prairie Creek Project (91% owned (9% Capgold) gold exploration project near Rockhampton, Queensland), and
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EL 8568 – Red Hill Project (100% owned copper exploration project near Red Hill, New South Wales).
In addition, Duke also has an interest in four New South Wales Cu-Au porphyry tenements currently operated by Lachlan Resources Pty Ltd, a wholly owned subsidiary of ASX listed Emmerson Resources (ASX:ERM). Duke currently holds a 5% interest in two of these tenements and a 10% interest in the other two tenements that is free carried to BFS.
Duke Exploration Limited
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The highest priority target for the Company is the Mt Flora Prospect in the Bundarra Project, one of the numerous Bundarra Project’s prospects, which has resource development potential for copper, silver and gold. All historic data from the mine at the Mt Flora Prospect has been checked in the field by diamond drilling and ground geophysics, which have confirmed the tenor and scale of copper, silver and gold mineralisation mined previously. There are five other areas with similar development potential on the Bundarra Project as defined by historic mining, geology and geophysics.
Our aim in the next two years is to develop an Indicated Mineral Resource at the Mt Flora Prospect to allow feasibility studies to be undertaken and o delineate additional Inferred Mineral Resources from the current known exploration target areas. The Company also intends to drill the more conceptual exploration targets on the Prairie Creek Project and Red Hill Project (see www.duke-exploration.com.au for more project details).
Competent person statement
The information in the ASX announcement is based on information compiled by Dr Gregor Partington, who is a Member of The Australasian Institute of Mining and Metallurgy and a Member of the Australian Institute of Geoscientists. Dr Gregor Partington has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity 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’ (the JORC Code).
Dr Gregor Partington is engaged by Duke Exploration as Operations Manager and consents to the inclusion of the information in the ASX announcement in the form and context in which it appears.
Duke Exploration Limited www.duke-exploration.com.au
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Appendix 1 – Waitara historic drill hole details (MGA94 Zone 55)
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| CL-0000 | RAB | 690,442 | 7,582,873 | 3.7 | 360 | -90 | 110 |
| CL-0200 | RAB | 690,335 | 7,582,697 | 3.7 | 360 | -90 | 46 |
| CL-0400 | RAB | 690,236 | 7,582,530 | 3.7 | 360 | -90 | 100 |
| CL-0600 | RAB | 690,132 | 7,582,359 | 3.7 | 360 | -90 | 120 |
| CL-0800 | RAB | 690,031 | 7,582,194 | 3.7 | 360 | -90 | 125 |
| CL-1000 | RAB | 689,929 | 7,582,024 | 3.7 | 360 | -90 | 135 |
| CL-1200 | RAB | 689,835 | 7,581,861 | 3.7 | 360 | -90 | 125 |
| CL-1400 | RAB | 689,735 | 7,581,694 | 3.7 | 360 | -90 | 100 |
| CL-1600 | RAB | 689,630 | 7,581,520 | 3.7 | 360 | -90 | 45 |
| DC01 | RAB | 685,913 | 7,584,891 | 2.4 | 360 | -90 | 270 |
| DC02 | RAB | 685,797 | 7,584,934 | 3.7 | 360 | -90 | 170 |
| DC03 | RAB | 685,677 | 7,584,979 | 3.7 | 360 | -90 | 535 |
| DC04 | RAB | 685,565 | 7,585,018 | 3.7 | 360 | -90 | 110 |
| DC05 | RAB | 685,459 | 7,585,060 | 3.7 | 360 | -90 | 270 |
| DC06 | RAB | 685,338 | 7,585,098 | 3.7 | 360 | -90 | 265 |
| DC07 | RAB | 685,227 | 7,585,142 | 3.7 | 360 | -90 | 285 |
| DC08 | RAB | 685,111 | 7,585,189 | 3.7 | 360 | -90 | 310 |
| DC09 | RAB | 684,994 | 7,585,233 | 2.4 | 360 | -90 | 180 |
| DC10 | RAB | 684,886 | 7,585,267 | 4.3 | 360 | -90 | 50 |
| DC11 | RAB | 685,301 | 7,584,985 | 3.7 | 360 | -90 | 760 |
| DC12 | RAB | 685,258 | 7,584,874 | 3.7 | 360 | -90 | 320 |
| DC13 | RAB | 685,212 | 7,584,763 | 3.7 | 360 | -90 | 285 |
| DC14 | RAB | 685,166 | 7,584,648 | 3.7 | 360 | -90 | 205 |
| DC15 | RAB | 685,380 | 7,585,214 | 3.7 | 360 | -90 | 380 |
| DC16 | RAB | 685,426 | 7,585,313 | 3.7 | 360 | -90 | 385 |
| DC17 | RAB | 685,478 | 7,585,444 | 3.7 | 360 | -90 | 100 |
| DC18 | RAB | 685,525 | 7,585,555 | 3.7 | 360 | -90 | 85 |
| DC19 | RAB | 685,568 | 7,585,673 | 3.7 | 360 | -90 | 85 |
| DC20 | RAB | 685,607 | 7,585,780 | 3.7 | 360 | -90 | 45 |
| DC21 | RAB | 685,658 | 7,585,863 | 3.7 | 360 | -90 | 150 |
| DC22 | RAB | 685,548 | 7,585,837 | 3.7 | 360 | -90 | 35 |
| DC23 | RAB | 685,417 | 7,585,818 | 3.7 | 360 | -90 | 60 |
| DC24 | RAB | 685,300 | 7,585,790 | 3.7 | 360 | -90 | 55 |
| DC26 | RAB | 685,779 | 7,585,886 | 3.7 | 360 | -90 | 135 |
| DC27 | RAB | 685,894 | 7,585,917 | 3.7 | 360 | -90 | 135 |
| DC28 | RAB | 686,018 | 7,585,940 | 3.7 | 360 | -90 | 60 |
| DC29 | RAB | 686,124 | 7,585,961 | 3.7 | 360 | -90 | 70 |
| DC30 | RAB | 686,243 | 7,585,983 | 3.7 | 360 | -90 | 55 |
| DC1000 | RAB | 685,270 | 7,584,638 | 3.7 | 360 | -90 | 80 |
| DC1001 | RAB | 685,265 | 7,584,543 | 3.7 | 360 | -90 | 200 |
| DC1002 | RAB | 685,264 | 7,584,445 | 3.7 | 360 | -90 | 40 |
| DC1003 | RAB | 685,266 | 7,584,350 | 3.7 | 360 | -90 | 25 |
| DC1004 | RAB | 685,262 | 7,584,259 | 3.7 | 360 | -90 | 35 |
| DC1005 | RAB | 685,262 | 7,584,157 | 3.7 | 360 | -90 | 20 |
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| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| DC1006 | RAB | 685,262 | 7,584,063 | 3.7 | 360 | -90 | 25 |
| DC1007 | RAB | 685,263 | 7,583,974 | 3.7 | 360 | -90 | 35 |
| DC1008 | RAB | 685,258 | 7,583,871 | 3.7 | 360 | -90 | 200 |
| DC1009 | RAB | 686,296 | 7,585,804 | 3.7 | 360 | -90 | 95 |
| DC1010 | RAB | 686,292 | 7,585,705 | 3.7 | 360 | -90 | 120 |
| DC1011 | RAB | 686,287 | 7,585,617 | 3.7 | 360 | -90 | 85 |
| DC1012 | RAB | 686,287 | 7,585,517 | 3.7 | 360 | -90 | 135 |
| DC1013 | RAB | 686,281 | 7,585,418 | 3.7 | 360 | -90 | 250 |
| DC1014 | RAB | 686,278 | 7,585,317 | 3.7 | 360 | -90 | 380 |
| DC1015 | RAB | 686,272 | 7,585,221 | 3.7 | 360 | -90 | 250 |
| DC1016 | RAB | 686,794 | 7,585,800 | 3.7 | 360 | -90 | 105 |
| DC1017 | RAB | 686,789 | 7,585,697 | 3.7 | 360 | -90 | 250 |
| DC1018 | RAB | 686,785 | 7,585,606 | 3.7 | 360 | -90 | 180 |
| DC1019 | RAB | 686,789 | 7,585,503 | 3.7 | 360 | -90 | 0 |
| DC1020 | RAB | 686,780 | 7,585,412 | 3.7 | 360 | -90 | 200 |
| DC1021 | RAB | 686,777 | 7,585,312 | 3.7 | 360 | -90 | 300 |
| DC1022 | RAB | 686,772 | 7,585,208 | 3.7 | 360 | -90 | 75 |
| DC1023 | RAB | 686,769 | 7,585,113 | 3.7 | 360 | -90 | 180 |
| DC1024 | RAB | 686,766 | 7,585,008 | 3.7 | 360 | -90 | 300 |
| DC1025 | RAB | 686,764 | 7,584,907 | 3.7 | 360 | -90 | 140 |
| DC1026 | RAB | 686,766 | 7,584,813 | 3.7 | 360 | -90 | 135 |
| DC1027 | RAB | 686,756 | 7,584,707 | 3.7 | 360 | -90 | 200 |
| DC1028 | RAB | 686,756 | 7,584,622 | 3.7 | 360 | -90 | 130 |
| DC1029 | RAB | 686,750 | 7,584,535 | 3.7 | 360 | -90 | 150 |
| DC1030 | RAB | 686,755 | 7,584,438 | 3.7 | 360 | -90 | 120 |
| DC1031 | RAB | 686,751 | 7,584,341 | 3.7 | 360 | -90 | 70 |
| DC1032 | RAB | 686,750 | 7,584,235 | 3.7 | 360 | -90 | 25 |
| DC1033 | RAB | 687,271 | 7,585,787 | 3.7 | 360 | -90 | 660 |
| DC1034 | RAB | 687,272 | 7,585,685 | 3.7 | 360 | -90 | 450 |
| DC1035 | RAB | 687,272 | 7,585,592 | 3.7 | 360 | -90 | 380 |
| DC1036 | RAB | 687,269 | 7,585,497 | 3.7 | 360 | -90 | 300 |
| DC1037 | RAB | 687,266 | 7,585,394 | 3.7 | 360 | -90 | 280 |
| DC1038 | RAB | 687,263 | 7,585,293 | 3.7 | 360 | -90 | 400 |
| DC1039 | RAB | 687,263 | 7,585,198 | 3.7 | 360 | -90 | 60 |
| DC1040 | RAB | 687,261 | 7,585,096 | 3.7 | 360 | -90 | 160 |
| DC1041 | RAB | 687,258 | 7,584,994 | 3.7 | 360 | -90 | 240 |
| DC1042 | RAB | 687,258 | 7,584,902 | 3.7 | 360 | -90 | 195 |
| DC1045 | RAB | 687,253 | 7,584,703 | 3.7 | 360 | -90 | 120 |
| DC1046 | RAB | 687,251 | 7,584,605 | 3.7 | 360 | -90 | 220 |
| DC1047 | RAB | 687,252 | 7,584,517 | 3.7 | 360 | -90 | 105 |
| DC1048 | RAB | 687,250 | 7,584,428 | 3.7 | 360 | -90 | 25 |
| DC1049 | RAB | 687,252 | 7,584,334 | 3.7 | 360 | -90 | 35 |
| DC1050 | RAB | 687,247 | 7,584,232 | 3.7 | 360 | -90 | 20 |
| DC1063 | RAB | 687,576 | 7,584,801 | 3.7 | 360 | -90 | 100 |
| DC-101 | RAB | 685,797 | 7,585,041 | 3.7 | 360 | -90 | 130 |
| DC-102 | RAB | 685,796 | 7,584,942 | 3.7 | 360 | -90 | 270 |
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| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| DC-103 | RAB | 685,796 | 7,584,844 | 3.7 | 360 | -90 | 270 |
| DC-104 | RAB | 685,795 | 7,584,746 | 3.7 | 360 | -90 | 920 |
| DC-105 | RAB | 685,794 | 7,584,647 | 3.7 | 360 | -90 | 210 |
| DC-106 | RAB | 685,793 | 7,584,549 | 3.7 | 360 | -90 | 430 |
| DC-107 | RAB | 685,792 | 7,584,452 | 3.7 | 360 | -90 | 1,000 |
| DC-108 | RAB | 685,790 | 7,584,353 | 3.7 | 360 | -90 | 100 |
| DC-109 | RAB | 685,791 | 7,584,255 | 3.7 | 360 | -90 | 370 |
| DC-110 | RAB | 685,788 | 7,583,961 | 3.7 | 360 | -90 | 200 |
| DC-111 | RAB | 685,896 | 7,585,137 | 3.7 | 360 | -90 | 700 |
| DC-112 | RAB | 685,895 | 7,585,039 | 3.7 | 360 | -90 | 200 |
| DC-113 | RAB | 685,894 | 7,584,941 | 3.7 | 360 | -90 | 600 |
| DC-114 | RAB | 685,894 | 7,584,843 | 3.7 | 360 | -90 | 320 |
| DC-115 | RAB | 685,893 | 7,584,745 | 3.7 | 360 | -90 | 360 |
| DC-116 | RAB | 685,892 | 7,584,647 | 3.7 | 360 | -90 | 290 |
| DC-117 | RAB | 685,891 | 7,584,549 | 3.7 | 360 | -90 | 1,100 |
| DC-118 | RAB | 685,890 | 7,584,450 | 3.7 | 360 | -90 | 880 |
| DC-119 | RAB | 685,889 | 7,584,352 | 3.7 | 360 | -90 | 270 |
| DC-120 | RAB | 685,889 | 7,584,254 | 3.7 | 360 | -90 | 310 |
| DC-121 | RAB | 685,888 | 7,584,156 | 3.7 | 360 | -90 | 320 |
| DC-122 | RAB | 685,887 | 7,584,058 | 3.7 | 360 | -90 | 440 |
| DC-123 | RAB | 685,886 | 7,583,960 | 3.7 | 360 | -90 | 580 |
| DC-124 | RAB | 685,994 | 7,585,136 | 3.7 | 360 | -90 | 175 |
| DC-125 | RAB | 685,993 | 7,585,038 | 3.7 | 360 | -90 | 430 |
| DC-126 | RAB | 685,993 | 7,584,989 | 3.7 | 360 | -90 | 200 |
| DC-127 | RAB | 685,993 | 7,584,940 | 3.7 | 360 | -90 | 80 |
| DC-128 | RAB | 685,992 | 7,584,891 | 3.7 | 360 | -90 | 150 |
| DC-129 | RAB | 685,992 | 7,584,842 | 3.7 | 360 | -90 | 230 |
| DC-130 | RAB | 685,991 | 7,584,792 | 3.7 | 360 | -90 | 350 |
| DC-131 | RAB | 685,991 | 7,584,744 | 3.7 | 360 | -90 | 500 |
| DC-132 | RAB | 685,990 | 7,584,695 | 3.7 | 360 | -90 | 430 |
| DC-133 | RAB | 685,990 | 7,584,645 | 3.7 | 360 | -90 | 260 |
| DC-134 | RAB | 685,990 | 7,584,597 | 3.7 | 360 | -90 | 360 |
| DC-135 | RAB | 685,989 | 7,584,548 | 3.7 | 360 | -90 | 570 |
| DC-136 | RAB | 685,989 | 7,584,499 | 3.7 | 360 | -90 | 430 |
| DC-137 | RAB | 685,988 | 7,584,450 | 3.7 | 360 | -90 | 350 |
| DC-138 | RAB | 685,988 | 7,584,401 | 3.7 | 360 | -90 | 350 |
| DC-139 | RAB | 685,988 | 7,584,352 | 3.7 | 360 | -90 | 120 |
| DC-140 | RAB | 685,987 | 7,584,302 | 3.7 | 360 | -90 | 175 |
| DC-141 | RAB | 685,987 | 7,584,253 | 3.7 | 360 | -90 | 130 |
| DC-142 | RAB | 685,987 | 7,584,155 | 3.7 | 360 | -90 | 280 |
| DC-143 | RAB | 685,985 | 7,584,056 | 3.7 | 360 | -90 | 1,000 |
| DC-144 | RAB | 685,984 | 7,583,959 | 3.7 | 360 | -90 | 210 |
| DC-145 | RAB | 686,092 | 7,585,136 | 3.7 | 360 | -90 | 110 |
| DC-146 | RAB | 686,092 | 7,585,086 | 3.7 | 360 | -90 | 220 |
| DC-147 | RAB | 686,091 | 7,585,037 | 3.7 | 360 | -90 | 1,700 |
| DC-148 | RAB | 686,091 | 7,584,988 | 3.7 | 360 | -90 | 110 |
Duke Exploration Limited
www.duke-exploration.com.au
12
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| DC-149 | RAB | 686,092 | 7,584,939 | 3.7 | 360 | -90 | 540 |
| DC-150 | RAB | 686,090 | 7,584,890 | 3.7 | 360 | -90 | 520 |
| DC-151 | RAB | 686,090 | 7,584,841 | 3.7 | 360 | -90 | 660 |
| DC-152 | RAB | 686,089 | 7,584,792 | 3.7 | 360 | -90 | 360 |
| DC-153 | RAB | 686,089 | 7,584,743 | 3.7 | 360 | -90 | 310 |
| DC-154 | RAB | 686,089 | 7,584,694 | 3.7 | 360 | -90 | 600 |
| DC-155 | RAB | 686,088 | 7,584,645 | 3.7 | 360 | -90 | 450 |
| DC-156 | RAB | 686,088 | 7,584,596 | 3.7 | 360 | -90 | 300 |
| DC-157 | RAB | 686,087 | 7,584,547 | 3.7 | 360 | -90 | 820 |
| DC-158 | RAB | 686,087 | 7,584,498 | 3.7 | 360 | -90 | 165 |
| DC-159 | RAB | 686,086 | 7,584,449 | 3.7 | 360 | -90 | 170 |
| DC-160 | RAB | 686,086 | 7,584,400 | 3.7 | 360 | -90 | 150 |
| DC-161 | RAB | 686,086 | 7,584,351 | 3.7 | 360 | -90 | 135 |
| DC-162 | RAB | 686,085 | 7,584,302 | 3.7 | 360 | -90 | 1,000 |
| DC-163 | RAB | 686,085 | 7,584,253 | 3.7 | 360 | -90 | 220 |
| DC-164 | RAB | 686,084 | 7,584,154 | 3.7 | 360 | -90 | 420 |
| DC-165 | RAB | 686,083 | 7,584,056 | 3.7 | 360 | -90 | 340 |
| DC-166 | RAB | 686,082 | 7,583,958 | 3.7 | 360 | -90 | 200 |
| DC-167 | RAB | 686,189 | 7,585,135 | 3.7 | 360 | -90 | 120 |
| DC-168 | RAB | 686,190 | 7,585,086 | 3.7 | 360 | -90 | 240 |
| DC-169 | RAB | 686,190 | 7,585,037 | 3.7 | 360 | -90 | 260 |
| DC-170 | RAB | 686,189 | 7,584,988 | 3.7 | 360 | -90 | 290 |
| DC-171 | RAB | 686,189 | 7,584,938 | 3.7 | 360 | -90 | 640 |
| DC-172 | RAB | 686,188 | 7,584,889 | 3.7 | 360 | -90 | 340 |
| DC-173 | RAB | 686,188 | 7,584,840 | 3.7 | 360 | -90 | 260 |
| DC-174 | RAB | 686,187 | 7,584,791 | 3.7 | 360 | -90 | 1,000 |
| DC-175 | RAB | 686,187 | 7,584,742 | 3.7 | 360 | -90 | 240 |
| DC-176 | RAB | 686,187 | 7,584,693 | 3.7 | 360 | -90 | 1,600 |
| DC-177 | RAB | 686,186 | 7,584,644 | 3.7 | 360 | -90 | 640 |
| DC-178 | RAB | 686,186 | 7,584,595 | 3.7 | 360 | -90 | 660 |
| DC-179 | RAB | 686,185 | 7,584,547 | 3.7 | 360 | -90 | 490 |
| DC-180 | RAB | 686,185 | 7,584,497 | 3.7 | 360 | -90 | 240 |
| DC-181 | RAB | 686,185 | 7,584,448 | 3.7 | 360 | -90 | 150 |
| DC-182 | RAB | 686,184 | 7,584,400 | 3.7 | 360 | -90 | 55 |
| DC-183 | RAB | 686,184 | 7,584,350 | 3.7 | 360 | -90 | 220 |
| DC-184 | RAB | 686,183 | 7,584,301 | 3.7 | 360 | -90 | 120 |
| DC-185 | RAB | 686,183 | 7,584,252 | 3.7 | 360 | -90 | 100 |
| DC-186 | RAB | 686,183 | 7,584,203 | 3.7 | 360 | -90 | 240 |
| DC-187 | RAB | 686,182 | 7,584,154 | 3.7 | 360 | -90 | 860 |
| DC-188 | RAB | 686,182 | 7,584,105 | 3.7 | 360 | -90 | 70 |
| DC-189 | RAB | 686,181 | 7,584,056 | 3.7 | 360 | -90 | 380 |
| DC-190 | RAB | 686,181 | 7,584,006 | 3.7 | 360 | -90 | 115 |
| DC-191 | RAB | 686,179 | 7,583,957 | 3.7 | 360 | -90 | 50 |
| DC-192 | RAB | 686,289 | 7,585,134 | 3.7 | 360 | -90 | 200 |
| DC-193 | RAB | 686,288 | 7,585,085 | 3.7 | 360 | -90 | 320 |
| DC-194 | RAB | 686,288 | 7,585,036 | 3.7 | 360 | -90 | 600 |
Duke Exploration Limited
www.duke-exploration.com.au
13
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| DC-195 | RAB | 686,287 | 7,584,987 | 3.7 | 360 | -90 | 370 |
| DC-196 | RAB | 686,287 | 7,584,938 | 3.7 | 360 | -90 | 390 |
| DC-197 | RAB | 686,286 | 7,584,889 | 3.7 | 360 | -90 | 500 |
| DC-198 | RAB | 686,286 | 7,584,840 | 3.7 | 360 | -90 | 740 |
| DC-199 | RAB | 686,286 | 7,584,790 | 3.7 | 360 | -90 | 720 |
| DC-200 | RAB | 686,284 | 7,584,741 | 3.7 | 360 | -90 | 740 |
| DC-201 | RAB | 686,285 | 7,584,692 | 3.7 | 360 | -90 | 430 |
| DC-202 | RAB | 686,284 | 7,584,643 | 3.7 | 360 | -90 | 250 |
| DC-203 | RAB | 686,284 | 7,584,594 | 3.7 | 360 | -90 | 220 |
| DC-204 | RAB | 686,284 | 7,584,545 | 3.7 | 360 | -90 | 500 |
| DC-205 | RAB | 686,283 | 7,584,496 | 3.7 | 360 | -90 | 125 |
| DC-206 | RAB | 686,283 | 7,584,447 | 3.7 | 360 | -90 | 105 |
| DC-207 | RAB | 686,282 | 7,584,398 | 3.7 | 360 | -90 | 120 |
| DC-208 | RAB | 686,282 | 7,584,349 | 3.7 | 360 | -90 | 110 |
| DC-209 | RAB | 686,281 | 7,584,300 | 3.7 | 360 | -90 | 105 |
| DC-210 | RAB | 686,281 | 7,584,251 | 3.7 | 360 | -90 | 115 |
| DC-211 | RAB | 686,281 | 7,584,202 | 3.7 | 360 | -90 | 100 |
| DC-212 | RAB | 686,280 | 7,584,153 | 3.7 | 360 | -90 | 70 |
| DC-213 | RAB | 686,280 | 7,584,104 | 3.7 | 360 | -90 | 105 |
| DC-214 | RAB | 686,279 | 7,584,055 | 3.7 | 360 | -90 | 120 |
| DC-215 | RAB | 686,279 | 7,584,006 | 3.7 | 360 | -90 | 120 |
| DC-216 | RAB | 686,279 | 7,583,957 | 3.7 | 360 | -90 | 30 |
| DC-217 | RAB | 686,387 | 7,585,133 | 3.7 | 360 | -90 | 200 |
| DC-218 | RAB | 686,386 | 7,585,084 | 3.7 | 360 | -90 | 490 |
| DC-219 | RAB | 686,386 | 7,585,035 | 3.7 | 360 | -90 | 210 |
| DC-220 | RAB | 686,385 | 7,584,986 | 3.7 | 360 | -90 | 240 |
| DC-221 | RAB | 686,385 | 7,584,937 | 3.7 | 360 | -90 | 720 |
| DC-222 | RAB | 686,385 | 7,584,888 | 3.7 | 360 | -90 | 560 |
| DC-223 | RAB | 686,384 | 7,584,839 | 3.7 | 360 | -90 | 660 |
| DC-224 | RAB | 686,384 | 7,584,790 | 3.7 | 360 | -90 | 1,000 |
| DC-225 | RAB | 686,383 | 7,584,740 | 3.7 | 360 | -90 | 470 |
| DC-226 | RAB | 686,383 | 7,584,692 | 3.7 | 360 | -90 | 340 |
| DC-227 | RAB | 686,382 | 7,584,642 | 3.7 | 360 | -90 | 200 |
| DC-228 | RAB | 686,382 | 7,584,592 | 3.7 | 360 | -90 | 140 |
| DC-229 | RAB | 686,382 | 7,584,544 | 3.7 | 360 | -90 | 155 |
| DC-230 | RAB | 686,381 | 7,584,495 | 3.7 | 360 | -90 | 320 |
| DC-231 | RAB | 686,381 | 7,584,446 | 3.7 | 360 | -90 | 130 |
| DC-232 | RAB | 686,380 | 7,584,397 | 3.7 | 360 | -90 | 105 |
| DC-233 | RAB | 686,379 | 7,584,348 | 3.7 | 360 | -90 | 95 |
| DC-234 | RAB | 686,380 | 7,584,299 | 3.7 | 360 | -90 | 130 |
| DC-235 | RAB | 686,379 | 7,584,250 | 3.7 | 360 | -90 | 40 |
| DC-236 | RAB | 686,379 | 7,584,201 | 3.7 | 360 | -90 | 35 |
| DC-237 | RAB | 686,378 | 7,584,151 | 3.7 | 360 | -90 | 120 |
| DC-238 | RAB | 686,378 | 7,584,103 | 3.7 | 360 | -90 | 70 |
| DC-239 | RAB | 686,377 | 7,584,054 | 3.7 | 360 | -90 | 45 |
| DC-240 | RAB | 686,377 | 7,584,004 | 3.7 | 360 | -90 | 40 |
Duke Exploration Limited
www.duke-exploration.com.au
14
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| DC-241 | RAB | 686,377 | 7,583,956 | 3.7 | 360 | -90 | 30 |
| DC-242 | RAB | 686,376 | 7,583,907 | 3.7 | 360 | -90 | 45 |
| DC-243 | RAB | 686,485 | 7,585,132 | 3.7 | 360 | -90 | 100 |
| DC-244 | RAB | 686,484 | 7,585,083 | 3.7 | 360 | -90 | 210 |
| DC-245 | RAB | 686,484 | 7,585,034 | 3.7 | 360 | -90 | 600 |
| DC-246 | RAB | 686,483 | 7,584,985 | 3.7 | 360 | -90 | 270 |
| DC-247 | RAB | 686,483 | 7,584,936 | 3.7 | 360 | -90 | 500 |
| DC-248 | RAB | 686,483 | 7,584,887 | 3.7 | 360 | -90 | 760 |
| DC-249 | RAB | 686,482 | 7,584,838 | 3.7 | 360 | -90 | 540 |
| DC-250 | RAB | 686,482 | 7,584,789 | 3.7 | 360 | -90 | 335 |
| DC-251 | RAB | 686,481 | 7,584,740 | 3.7 | 360 | -90 | 350 |
| DC-252 | RAB | 686,481 | 7,584,691 | 3.7 | 360 | -90 | 165 |
| DC-253 | RAB | 686,481 | 7,584,642 | 3.7 | 360 | -90 | 185 |
| DC-254 | RAB | 686,480 | 7,584,593 | 3.7 | 360 | -90 | 170 |
| DC-255 | RAB | 686,480 | 7,584,544 | 3.7 | 360 | -90 | 180 |
| DC-256 | RAB | 686,479 | 7,584,495 | 3.7 | 360 | -90 | 175 |
| DC-257 | RAB | 686,479 | 7,584,445 | 3.7 | 360 | -90 | 175 |
| DC-258 | RAB | 686,478 | 7,584,396 | 3.7 | 360 | -90 | 120 |
| DC-259 | RAB | 686,478 | 7,584,347 | 3.7 | 360 | -90 | 170 |
| DC-260 | RAB | 686,478 | 7,584,298 | 3.7 | 360 | -90 | 100 |
| DC-261 | RAB | 686,477 | 7,584,249 | 3.7 | 360 | -90 | 70 |
| DC-262 | RAB | 686,477 | 7,584,200 | 3.7 | 360 | -90 | 170 |
| DC-263 | RAB | 686,476 | 7,584,151 | 3.7 | 360 | -90 | 55 |
| DC-264 | RAB | 686,476 | 7,584,102 | 3.7 | 360 | -90 | 40 |
| DC-265 | RAB | 686,476 | 7,584,053 | 3.7 | 360 | -90 | 30 |
| DC-266 | RAB | 686,475 | 7,584,004 | 3.7 | 360 | -90 | 15 |
| DC-267 | RAB | 686,475 | 7,583,955 | 3.7 | 360 | -90 | 50 |
| DC-268 | RAB | 686,474 | 7,583,906 | 3.7 | 360 | -90 | 60 |
| DC-269 | RAB | 686,583 | 7,585,131 | 3.7 | 360 | -90 | 260 |
| DC-270 | RAB | 686,582 | 7,585,083 | 3.7 | 360 | -90 | 380 |
| DC-271 | RAB | 686,582 | 7,585,033 | 3.7 | 360 | -90 | 165 |
| DC-272 | RAB | 686,582 | 7,584,984 | 3.7 | 360 | -90 | 165 |
| DC-273 | RAB | 686,581 | 7,584,936 | 3.7 | 360 | -90 | 280 |
| DC-274 | RAB | 686,581 | 7,584,886 | 3.7 | 360 | -90 | 260 |
| DC-275 | RAB | 686,580 | 7,584,837 | 3.7 | 360 | -90 | 410 |
| DC-276 | RAB | 686,580 | 7,584,788 | 3.7 | 360 | -90 | 560 |
| DC-277 | RAB | 686,579 | 7,584,739 | 3.7 | 360 | -90 | 780 |
| DC-278 | RAB | 686,579 | 7,584,690 | 3.7 | 360 | -90 | 210 |
| DC-279 | RAB | 686,579 | 7,584,641 | 3.7 | 360 | -90 | 270 |
| DC-280 | RAB | 686,578 | 7,584,592 | 3.7 | 360 | -90 | 400 |
| DC-281 | RAB | 686,578 | 7,584,543 | 3.7 | 360 | -90 | 120 |
| DC-282 | RAB | 686,577 | 7,584,495 | 3.7 | 360 | -90 | 200 |
| DC-283 | RAB | 686,577 | 7,584,445 | 3.7 | 360 | -90 | 155 |
| DC-284 | RAB | 686,577 | 7,584,396 | 3.7 | 360 | -90 | 65 |
| DC-285 | RAB | 686,576 | 7,584,347 | 3.7 | 360 | -90 | 75 |
| DC-286 | RAB | 686,576 | 7,584,297 | 3.7 | 360 | -90 | 70 |
Duke Exploration Limited
www.duke-exploration.com.au
15
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| DC-287 | RAB | 686,575 | 7,584,248 | 3.7 | 360 | -90 | 40 |
| DC-288 | RAB | 686,575 | 7,584,199 | 3.7 | 360 | -90 | 200 |
| DC-289 | RAB | 686,575 | 7,584,150 | 3.7 | 360 | -90 | 40 |
| DC-290 | RAB | 686,574 | 7,584,101 | 3.7 | 360 | -90 | 440 |
| DC-291 | RAB | 686,574 | 7,584,052 | 3.7 | 360 | -90 | 30 |
| DC-292 | RAB | 686,573 | 7,584,003 | 3.7 | 360 | -90 | 30 |
| DC-293 | RAB | 686,573 | 7,583,954 | 3.7 | 360 | -90 | 25 |
| DC-294 | RAB | 686,572 | 7,583,906 | 3.7 | 360 | -90 | 55 |
| DC-PDH1 | RC | 685,910 | 7,584,367 | 19.0 | 360 | -90 | 560 |
| DC-PDH2 | RC | 685,859 | 7,583,643 | 50.0 | 360 | -90 | 300 |
| DC-PDH3 | RC | 687,322 | 7,583,560 | 58.0 | 360 | -90 | 45 |
| DC-PDH4 | RC | 685,767 | 7,584,453 | 50.0 | 360 | -90 | 1,600 |
| DC-PDH5 | RC | 684,890 | 7,583,544 | 66.0 | 0 | -90 | 0 |
| DC-PDH6 | RC | 684,823 | 7,583,606 | 66.0 | 0 | -90 | 0 |
| DEN-1 | Diamond | 686,235 | 7,584,563 | 100.0 | 360 | -90 | 1,800 |
| DEN-2 | Diamond | 686,260 | 7,584,763 | 50.0 | 360 | -90 | 1,600 |
| FC-0000 | RAB | 689,418 | 7,583,867 | 3.7 | 360 | -90 | 55 |
| FC-0200 | RAB | 689,407 | 7,583,670 | 3.7 | 360 | -90 | 5 |
| FC-0400 | RAB | 689,408 | 7,583,470 | 3.7 | 360 | -90 | 80 |
| FC-0600 | RAB | 689,401 | 7,583,272 | 3.7 | 360 | -90 | 100 |
| FC-1000 | RAB | 689,389 | 7,582,880 | 3.7 | 360 | -90 | 40 |
| FC-1200 | RAB | 689,389 | 7,582,682 | 3.7 | 360 | -90 | 30 |
| PT-0000 | RAB | 691,086 | 7,582,992 | 3.7 | 360 | -90 | 240 |
| PT-0200 | RAB | 690,947 | 7,583,122 | 3.7 | 360 | -90 | 25 |
| PT-0400 | RAB | 690,808 | 7,583,264 | 3.7 | 360 | -90 | 10 |
| PT-0600 | RAB | 690,658 | 7,583,411 | 3.7 | 360 | -90 | 10 |
| PT-0800 | RAB | 690,516 | 7,583,547 | 3.7 | 360 | -90 | 10 |
| PT-1000 | RAB | 690,382 | 7,583,682 | 3.7 | 360 | -90 | 5 |
| PT-1200 | RAB | 690,240 | 7,583,821 | 3.7 | 360 | -90 | 10 |
| PT-1400 | RAB | 690,095 | 7,583,956 | 3.7 | 360 | -90 | 2 |
| TL-0000 | RAB | 686,570 | 7,584,618 | 3.7 | 360 | -90 | 55 |
| TL-0200 | RAB | 686,781 | 7,584,507 | 3.7 | 360 | -90 | 320 |
| TL-0400 | RAB | 686,986 | 7,584,397 | 3.7 | 360 | -90 | 300 |
| TL-0600 | RAB | 687,191 | 7,584,288 | 3.7 | 360 | -90 | 350 |
| TL-0800 | RAB | 687,397 | 7,584,174 | 3.7 | 360 | -90 | 30 |
| TL-1000 | RAB | 687,606 | 7,584,059 | 3.7 | 360 | -90 | 30 |
| TL-1200 | RAB | 687,797 | 7,583,956 | 3.7 | 360 | -90 | 45 |
| TL-1400 | RAB | 687,959 | 7,583,861 | 3.7 | 360 | -90 | 10 |
| TL-1600 | RAB | 688,133 | 7,583,768 | 3.7 | 360 | -90 | 25 |
| TL-1800 | RAB | 688,301 | 7,583,678 | 3.7 | 360 | -90 | 20 |
| TL-2000 | RAB | 688,445 | 7,583,600 | 3.7 | 360 | -90 | 50 |
| TL-2200 | RAB | 688,612 | 7,583,506 | 3.7 | 360 | -90 | 35 |
| TL-2400 | RAB | 688,787 | 7,583,410 | 3.7 | 360 | -90 | 40 |
| TL-2600 | RAB | 688,956 | 7,583,321 | 3.7 | 360 | -90 | 35 |
| TL-2800 | RAB | 689,092 | 7,583,254 | 3.7 | 360 | -90 | 65 |
| TL-3000 | RAB | 689,237 | 7,583,171 | 3.7 | 360 | -90 | 35 |
Duke Exploration Limited
www.duke-exploration.com.au
16
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| TL-3200 | RAB | 689,337 | 7,583,094 | 3.7 | 360 | -90 | 100 |
| TL-3400 | RAB | 689,578 | 7,582,985 | 3.7 | 360 | -90 | 80 |
| TL-3600 | RAB | 689,763 | 7,582,884 | 3.7 | 360 | -90 | 60 |
| TL-3800 | RAB | 689,954 | 7,582,782 | 3.7 | 360 | -90 | 65 |
| TL-4000 | RAB | 690,128 | 7,582,686 | 3.7 | 360 | -90 | 60 |
| TL-4200 | RAB | 690,269 | 7,582,563 | 3.7 | 360 | -90 | 130 |
| TL-4400 | RAB | 690,405 | 7,582,421 | 3.7 | 360 | -90 | 120 |
| TL-4600 | RAB | 690,543 | 7,582,277 | 3.7 | 360 | -90 | 75 |
| TL-4800 | RAB | 690,682 | 7,582,136 | 3.7 | 360 | -90 | 20 |
| TL-5000 | RAB | 690,823 | 7,581,997 | 3.7 | 360 | -90 | 20 |
| TL-5200 | RAB | 690,956 | 7,581,850 | 3.7 | 360 | -90 | 45 |
| TL-5400 | RAB | 691,095 | 7,581,717 | 3.7 | 360 | -90 | 80 |
| TL-5600 | RAB | 691,236 | 7,581,575 | 3.7 | 360 | -90 | 15 |
| TL-5800 | RAB | 691,378 | 7,581,427 | 3.7 | 360 | -90 | 20 |
| TL-6000 | RAB | 691,516 | 7,581,286 | 3.7 | 360 | -90 | 50 |
| TP01 | RAB | 690,654 | 7,583,110 | 3.7 | 360 | -90 | 30 |
| TP02 | RAB | 690,649 | 7,582,902 | 3.7 | 360 | -90 | 135 |
| TP03 | RAB | 690,639 | 7,582,693 | 3.7 | 360 | -90 | 60 |
| TP04 | RAB | 690,632 | 7,582,488 | 3.7 | 360 | -90 | 10 |
| TP05 | RAB | 690,628 | 7,582,275 | 3.7 | 360 | -90 | 22 |
| TP06 | RAB | 690,880 | 7,583,107 | 3.7 | 360 | -90 | 80 |
| TP07 | RAB | 690,869 | 7,582,898 | 3.7 | 360 | -90 | 200 |
| TP08 | RAB | 690,864 | 7,582,689 | 3.7 | 360 | -90 | 90 |
| TP09 | RAB | 690,856 | 7,582,486 | 3.7 | 360 | -90 | 75 |
| TP10 | RAB | 690,849 | 7,582,269 | 3.7 | 360 | -90 | 20 |
| TP11 | RAB | 691,091 | 7,583,101 | 3.7 | 360 | -90 | 25 |
| TP12 | RAB | 691,084 | 7,582,888 | 3.7 | 360 | -90 | 0 |
| TP13 | RAB | 691,081 | 7,582,681 | 3.7 | 360 | -90 | 180 |
| TP14 | RAB | 691,072 | 7,582,478 | 3.7 | 360 | -90 | 100 |
| TP15 | RAB | 691,068 | 7,582,266 | 3.7 | 360 | -90 | 15 |
| TP16 | RAB | 691,298 | 7,583,094 | 3.7 | 360 | -90 | 80 |
| TP17 | RAB | 691,293 | 7,582,883 | 3.7 | 360 | -90 | 180 |
| TP18 | RAB | 691,284 | 7,582,679 | 3.7 | 360 | -90 | 170 |
| TP19 | RAB | 691,278 | 7,582,474 | 3.7 | 360 | -90 | 175 |
| TP20 | RAB | 691,276 | 7,582,262 | 3.7 | 360 | -90 | 70 |
| TP21 | RAB | 691,512 | 7,583,091 | 3.7 | 360 | -90 | 30 |
| TP22 | RAB | 691,504 | 7,582,879 | 3.7 | 360 | -90 | 180 |
| TP23 | RAB | 691,500 | 7,582,677 | 3.7 | 360 | -90 | 100 |
| TP24 | RAB | 691,490 | 7,582,470 | 3.7 | 360 | -90 | 175 |
| TP25 | RAB | 691,484 | 7,582,256 | 3.7 | 360 | -90 | 100 |
| TP26 | RAB | 691,722 | 7,583,084 | 3.7 | 360 | -90 | 40 |
| TP27 | RAB | 691,715 | 7,582,876 | 3.7 | 360 | -90 | 200 |
| TP28 | RAB | 691,710 | 7,582,669 | 3.7 | 360 | -90 | 140 |
| TP29 | RAB | 691,701 | 7,582,465 | 3.7 | 360 | -90 | 100 |
| TP30 | RAB | 691,690 | 7,582,255 | 3.7 | 360 | -90 | 135 |
| TP31 | RAB | 691,900 | 7,583,077 | 3.7 | 360 | -90 | 60 |
Duke Exploration Limited
www.duke-exploration.com.au
17
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| TP32 | RAB | 691,895 | 7,582,868 | 3.7 | 360 | -90 | 10 |
| TP33 | RAB | 691,882 | 7,582,664 | 3.7 | 360 | -90 | 30 |
| TP34 | RAB | 691,884 | 7,582,252 | 3.7 | 360 | -90 | 130 |
| TP35 | RAB | 692,086 | 7,583,077 | 3.7 | 360 | -90 | 10 |
| TP36 | RAB | 692,083 | 7,582,865 | 3.7 | 360 | -90 | 35 |
| TP37 | RAB | 692,071 | 7,582,659 | 3.7 | 360 | -90 | 25 |
| TP38 | RAB | 692,070 | 7,582,449 | 3.7 | 360 | -90 | 30 |
| TP39 | RAB | 692,065 | 7,582,239 | 3.7 | 360 | -90 | 40 |
| TP40 | RAB | 692,283 | 7,582,653 | 3.7 | 360 | -90 | 5 |
| TP41 | RAB | 692,495 | 7,582,647 | 3.7 | 360 | -90 | 5 |
| TP42 | RAB | 692,692 | 7,582,639 | 3.7 | 360 | -90 | 25 |
| TP43 | RAB | 692,903 | 7,582,635 | 3.7 | 360 | -90 | 10 |
| TP-PDH1 | RC | 691,080 | 7,582,682 | 50.0 | 360 | -90 | 490 |
| TP-PDH2 | RC | 691,882 | 7,582,664 | 50.0 | 360 | -90 | 2,700 |
| TP-PDH3 | RC | 691,642 | 7,582,646 | 50.0 | 360 | -90 | 480 |
| TP-PDH4 | RC | 691,307 | 7,582,848 | 52.0 | 360 | -90 | 300 |
| TP-PDH5 | RC | 691,065 | 7,582,991 | 28.0 | 360 | -90 | 240 |
| TP-PDH5B | RC | 691,054 | 7,582,961 | 50.0 | 360 | -90 | 170 |
| TP-PDH6 | RC | 692,171 | 7,582,656 | 50.0 | 360 | -90 | 1,700 |
| W-01 | Diamond | 689,362 | 7,585,347 | 305.0 | 360 | -90 | 5,200 |
| W-02 | Diamond | 689,633 | 7,585,321 | 152.4 | 360 | -90 | 3,900 |
| W-03 | Diamond | 689,608 | 7,585,834 | 105.6 | 279 | -60 | 1,200 |
| W-04 | Diamond | 689,305 | 7,585,110 | 152.4 | 360 | -90 | 3,400 |
| W-05 | Diamond | 688,999 | 7,585,596 | 152.4 | 360 | -90 | 3,300 |
| W-06 | Diamond | 689,724 | 7,584,958 | 243.8 | 279 | -60 | 7,000 |
| W-07 | Diamond | 689,120 | 7,585,353 | 199.5 | 360 | -90 | 3,300 |
| W-08 | Diamond | 689,952 | 7,584,824 | 152.4 | 360 | -90 | 4,500 |
| W-09 | Diamond | 688,576 | 7,585,741 | 100.0 | 360 | -90 | 1,200 |
| W-10 | Diamond | 689,699 | 7,585,556 | 150.0 | 360 | -90 | 1,200 |
| W-11 | Diamond | 689,964 | 7,586,025 | 306.8 | 0 | 0 | 0 |
| W-PDH1 | RC | 689,056 | 7,584,634 | 50.0 | 360 | -90 | 1,500 |
| W-PDH2 | RC | 689,689 | 7,585,798 | 50.0 | 360 | -90 | 660 |
| W-PDH3 | RC | 690,005 | 7,586,036 | 60.0 | 0 | 0 | 60,000 |
| W-PDH4 | RC | 689,918 | 7,585,994 | 60.0 | 0 | 0 | 5,800 |
| W-PDH5 | RC | 689,595 | 7,585,626 | 50.0 | 360 | -90 | 2,600 |
| W-PDH6 | RC | 689,466 | 7,585,702 | 50.0 | 360 | -90 | 2,400 |
| W-PDH7 | RC | 689,319 | 7,585,800 | 49.0 | 0 | 0 | 640 |
| W-PDH8 | RC | 689,610 | 7,585,175 | 51.0 | 0 | 0 | 10,500 |
| W-PDH9 | RC | 689,592 | 7,585,037 | 57.0 | 0 | 0 | 8,800 |
| W-PDH10 | RC | 689,432 | 7,584,638 | 44.0 | 0 | 0 | 4,400 |
| W-PDH11 | RC | 690,457 | 7,584,627 | 54.0 | 0 | 0 | 190 |
| W-PDH12 | RC | 690,312 | 7,584,576 | 80.0 | 0 | 0 | 3,200 |
| W-PDH13 | RC | 690,127 | 7,584,809 | 30.0 | 0 | 0 | 2,800 |
| W-PDH13A | RC | 690,116 | 7,584,712 | 38.0 | 0 | 0 | 1,600 |
| W-PDH14 | RC | 689,765 | 7,584,649 | 54.0 | 0 | 0 | 1,200 |
| W-PDH15 | RC | 689,126 | 7,584,861 | 78.0 | 0 | 0 | 4,800 |
Duke Exploration Limited
www.duke-exploration.com.au
18
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| W-PDH16 | RC | 689,955 | 7,586,069 | 20.0 | 0 | 0 | 80 |
| W-PDH17 | RC | 690,008 | 7,585,969 | 20.0 | 0 | 0 | 40 |
| W-PDH18 | RC | 689,906 | 7,585,967 | 50.0 | 0 | 0 | 300 |
| W-PDH19 | RC | 689,446 | 7,586,106 | 44.0 | 0 | 0 | 960 |
| W-PDH20 | RC | 687,642 | 7,585,178 | 56.0 | 0 | -90 | 640 |
| WA-001 | RAB | 689,246 | 7,585,352 | 10.1 | 360 | -90 | 1,120 |
| WA-002 | RAB | 689,184 | 7,585,354 | 8.2 | 360 | -90 | 1,800 |
| WA-003 | RAB | 689,123 | 7,585,356 | 6.4 | 360 | -90 | 1,730 |
| WA-004 | RAB | 689,062 | 7,585,358 | 7.0 | 360 | -90 | 1,460 |
| WA-005 | RAB | 689,001 | 7,585,360 | 8.2 | 360 | -90 | 2,100 |
| WA-006 | RAB | 688,940 | 7,585,363 | 9.2 | 360 | -90 | 1,920 |
| WA-007 | RAB | 688,879 | 7,585,365 | 4.9 | 360 | -90 | 820 |
| WA-008 | RAB | 688,818 | 7,585,367 | 3.7 | 360 | -90 | 875 |
| WA-009 | RAB | 688,757 | 7,585,369 | 4.3 | 360 | -90 | 730 |
| WA-010 | RAB | 688,695 | 7,585,371 | 4.0 | 360 | -90 | 670 |
| WA-011 | RAB | 688,634 | 7,585,373 | 5.2 | 360 | -90 | 470 |
| WA-012 | RAB | 688,573 | 7,585,375 | 1.8 | 360 | -90 | 730 |
| WA-013 | RAB | 688,512 | 7,585,378 | 5.5 | 360 | -90 | 890 |
| WA-014 | RAB | 689,254 | 7,585,596 | 4.0 | 360 | -90 | 1,850 |
| WA-015 | RAB | 689,193 | 7,585,598 | 4.0 | 360 | -90 | 660 |
| WA-016 | RAB | 689,132 | 7,585,601 | 7.3 | 360 | -90 | 520 |
| WA-017 | RAB | 689,071 | 7,585,603 | 4.0 | 360 | -90 | 920 |
| WA-018 | RAB | 689,010 | 7,585,605 | 6.4 | 360 | -90 | 1,980 |
| WA-019 | RAB | 688,949 | 7,585,607 | 4.0 | 360 | -90 | 2,500 |
| WA-020 | RAB | 688,887 | 7,585,609 | 5.5 | 360 | -90 | 1,900 |
| WA-021 | RAB | 688,826 | 7,585,611 | 4.0 | 360 | -90 | 1,200 |
| WA-022 | RAB | 688,765 | 7,585,614 | 5.2 | 360 | -90 | 620 |
| WA-023 | RAB | 688,704 | 7,585,616 | 4.0 | 360 | -90 | 1,440 |
| WA-024 | RAB | 688,643 | 7,585,618 | 8.8 | 360 | -90 | 940 |
| WA-025 | RAB | 688,582 | 7,585,620 | 4.0 | 360 | -90 | 530 |
| WA-026 | RAB | 688,521 | 7,585,622 | 4.0 | 360 | -90 | 950 |
| WA-027 | RAB | 688,460 | 7,585,624 | 4.0 | 360 | -90 | 745 |
| WA-028 | RAB | 688,398 | 7,585,626 | 4.0 | 360 | -90 | 365 |
| WA-029 | RAB | 688,337 | 7,585,629 | 3.1 | 360 | -90 | 265 |
| WA-030 | RAB | 688,276 | 7,585,631 | 4.0 | 360 | -90 | 340 |
| WA-034 | RAB | 689,079 | 7,585,847 | 4.0 | 360 | -90 | 830 |
| WA-035 | RAB | 689,018 | 7,585,849 | 4.0 | 360 | -90 | 845 |
| WA-036 | RAB | 688,957 | 7,585,852 | 3.1 | 360 | -90 | 360 |
| WA-037 | RAB | 688,896 | 7,585,854 | 4.0 | 360 | -90 | 2,200 |
| WA-038 | RAB | 688,835 | 7,585,856 | 4.0 | 360 | -90 | 1,425 |
| WA-039 | RAB | 688,774 | 7,585,858 | 4.0 | 360 | -90 | 885 |
| WA-040 | RAB | 688,713 | 7,585,860 | 4.0 | 360 | -90 | 740 |
| WA-041 | RAB | 688,652 | 7,585,862 | 4.0 | 360 | -90 | 1,800 |
| WA-042 | RAB | 688,590 | 7,585,864 | 4.0 | 360 | -90 | 1,125 |
| WA-043 | RAB | 688,529 | 7,585,867 | 4.0 | 360 | -90 | 580 |
| WA-044 | RAB | 688,468 | 7,585,869 | 4.0 | 360 | -90 | 445 |
Duke Exploration Limited
www.duke-exploration.com.au
19
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| WA-045 | RAB | 688,407 | 7,585,871 | 4.0 | 360 | -90 | 315 |
| WA-046 | RAB | 688,346 | 7,585,873 | 4.0 | 360 | -90 | 70 |
| WA-047 | RAB | 688,285 | 7,585,875 | 4.0 | 360 | -90 | 500 |
| WA-048 | RAB | 688,224 | 7,585,877 | 4.0 | 360 | -90 | 150 |
| WA-049 | RAB | 688,163 | 7,585,880 | 2.7 | 360 | -90 | 120 |
| WA-052 | RAB | 689,149 | 7,586,090 | 1.5 | 360 | -90 | 580 |
| WA-053 | RAB | 689,088 | 7,586,092 | 1.5 | 360 | -90 | 445 |
| WA-054 | RAB | 689,027 | 7,586,094 | 2.4 | 360 | -90 | 610 |
| WA-055 | RAB | 688,966 | 7,586,096 | 3.1 | 360 | -90 | 245 |
| WA-056 | RAB | 688,905 | 7,586,098 | 2.7 | 360 | -90 | 500 |
| WA-057 | RAB | 688,844 | 7,586,100 | 2.4 | 360 | -90 | 1,175 |
| WA-058 | RAB | 688,782 | 7,586,103 | 4.0 | 360 | -90 | 310 |
| WA-059 | RAB | 688,721 | 7,586,105 | 4.0 | 360 | -90 | 340 |
| WA-060 | RAB | 688,660 | 7,586,107 | 4.0 | 360 | -90 | 295 |
| WA-061 | RAB | 688,599 | 7,586,109 | 3.1 | 360 | -90 | 255 |
| WA-062 | RAB | 688,538 | 7,586,111 | 2.7 | 360 | -90 | 80 |
| WA-063 | RAB | 688,477 | 7,586,113 | 2.7 | 360 | -90 | 180 |
| WA-064 | RAB | 688,416 | 7,586,115 | 4.0 | 360 | -90 | 1,950 |
| WA-065 | RAB | 688,355 | 7,586,118 | 4.0 | 360 | -90 | 15 |
| WA-066 | RAB | 688,293 | 7,586,120 | 4.0 | 360 | -90 | 25 |
| WA-067 | RAB | 688,232 | 7,586,122 | 2.4 | 360 | -90 | 40 |
| WA-068 | RAB | 688,171 | 7,586,124 | 4.0 | 360 | -90 | 80 |
| WA-069 | RAB | 689,359 | 7,585,103 | 4.0 | 360 | -90 | 1,420 |
| WA-070 | RAB | 689,298 | 7,585,105 | 4.0 | 360 | -90 | 830 |
| WA-071 | RAB | 689,237 | 7,585,107 | 4.0 | 360 | -90 | 685 |
| WA-072 | RAB | 689,176 | 7,585,109 | 4.0 | 360 | -90 | 1,520 |
| WA-073 | RAB | 689,115 | 7,585,112 | 4.0 | 360 | -90 | 1,280 |
| WA-074 | RAB | 689,054 | 7,585,114 | 4.0 | 360 | -90 | 0 |
| WA-075 | RAB | 688,993 | 7,585,116 | 4.0 | 360 | -90 | 565 |
| WA-076 | RAB | 688,931 | 7,585,118 | 4.0 | 360 | -90 | 695 |
| WA-077 | RAB | 688,870 | 7,585,120 | 2.4 | 360 | -90 | 880 |
| WA-078 | RAB | 688,809 | 7,585,122 | 4.0 | 360 | -90 | 920 |
| WA-079 | RAB | 688,748 | 7,585,125 | 4.0 | 360 | -90 | 925 |
| WA-080 | RAB | 688,687 | 7,585,127 | 2.1 | 360 | -90 | 890 |
| WA-081 | RAB | 688,626 | 7,585,129 | 4.0 | 360 | -90 | 3,200 |
| WA-082 | RAB | 688,565 | 7,585,131 | 3.1 | 360 | -90 | 155 |
| WA-083 | RAB | 688,504 | 7,585,133 | 3.1 | 360 | -90 | 65 |
| WA-084 | RAB | 688,442 | 7,585,135 | 1.8 | 360 | -90 | 295 |
| WA-085 | RAB | 689,351 | 7,584,859 | 4.0 | 360 | -90 | 935 |
| WA-086 | RAB | 689,290 | 7,584,861 | 4.0 | 360 | -90 | 560 |
| WA-101 | RAB | 689,355 | 7,584,981 | 4.0 | 360 | -90 | 1,940 |
| WA-102 | RAB | 689,294 | 7,584,983 | 4.0 | 360 | -90 | 550 |
| WA-103 | RAB | 689,233 | 7,584,985 | 4.0 | 360 | -90 | 820 |
| WA-104 | RAB | 689,172 | 7,584,987 | 4.0 | 360 | -90 | 1,750 |
| WA-105 | RAB | 689,110 | 7,584,989 | 4.0 | 360 | -90 | 1,720 |
| WA-106 | RAB | 689,049 | 7,584,992 | 3.1 | 360 | -90 | 825 |
Duke Exploration Limited
www.duke-exploration.com.au
20
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| WA-107 | RAB | 688,988 | 7,584,994 | 4.0 | 360 | -90 | 745 |
| WA-108 | RAB | 688,927 | 7,584,996 | 4.0 | 360 | -90 | 695 |
| WA-109 | RAB | 688,866 | 7,584,998 | 4.0 | 360 | -90 | 365 |
| WA-110 | RAB | 688,805 | 7,585,000 | 4.0 | 360 | -90 | 350 |
| WA-111 | RAB | 688,744 | 7,585,002 | 4.0 | 360 | -90 | 200 |
| WA-112 | RAB | 688,683 | 7,585,004 | 1.8 | 360 | -90 | 205 |
| WA-113 | RAB | 688,621 | 7,585,007 | 4.0 | 360 | -90 | 625 |
| WA-114 | RAB | 688,560 | 7,585,009 | 4.0 | 360 | -90 | 560 |
| WA-115 | RAB | 688,499 | 7,585,011 | 4.0 | 360 | -90 | 576 |
| WA-116 | RAB | 688,438 | 7,585,013 | 4.0 | 360 | -90 | 520 |
| WA-133 | RAB | 690,209 | 7,584,890 | 4.0 | 360 | -90 | 1,175 |
| WA-134 | RAB | 690,150 | 7,584,953 | 4.0 | 360 | -90 | 525 |
| WA-135 | RAB | 690,147 | 7,584,892 | 3.4 | 360 | -90 | 855 |
| WA-136 | RAB | 690,086 | 7,584,894 | 1.8 | 360 | -90 | 605 |
| WA-137 | RAB | 690,025 | 7,584,896 | 4.0 | 360 | -90 | 2,300 |
| WA-138 | RAB | 689,964 | 7,584,898 | 2.1 | 360 | -90 | 880 |
| WA-139 | RAB | 689,903 | 7,584,900 | 4.0 | 360 | -90 | 655 |
| WA-141 | RAB | 689,774 | 7,584,721 | 4.0 | 360 | -90 | 1,850 |
| WA-142 | RAB | 689,835 | 7,584,719 | 4.0 | 360 | -90 | 1,450 |
| WA-143 | RAB | 689,896 | 7,584,717 | 4.0 | 360 | -90 | 725 |
| WA-144 | RAB | 689,958 | 7,584,715 | 4.0 | 360 | -90 | 480 |
| WA-145 | RAB | 690,019 | 7,584,713 | 4.0 | 360 | -90 | 980 |
| WA-146 | RAB | 690,080 | 7,584,710 | 1.8 | 360 | -90 | 205 |
| WA-147 | RAB | 690,141 | 7,584,708 | 1.5 | 360 | -90 | 145 |
| WA-148 | RAB | 689,717 | 7,584,846 | 4.0 | 360 | -90 | 865 |
| WA-149 | RAB | 689,779 | 7,584,843 | 4.0 | 360 | -90 | 865 |
| WA-150 | RAB | 689,840 | 7,584,841 | 4.0 | 360 | -90 | 1,450 |
| WA-151 | RAB | 689,901 | 7,584,839 | 1.5 | 360 | -90 | 335 |
| WA-152 | RAB | 689,962 | 7,584,837 | 4.0 | 360 | -90 | 4,220 |
| WA-153 | RAB | 690,023 | 7,584,835 | 4.0 | 360 | -90 | 2,300 |
| WA-154 | RAB | 690,084 | 7,584,833 | 4.0 | 360 | -90 | 4,300 |
| WA-155 | RAB | 690,145 | 7,584,831 | 1.8 | 360 | -90 | 170 |
| WA-156 | RAB | 690,206 | 7,584,828 | 4.0 | 360 | -90 | 870 |
| WA-157 | RAB | 689,971 | 7,585,082 | 1.5 | 360 | -90 | 205 |
| WA-158 | RAB | 690,032 | 7,585,079 | 2.4 | 360 | -90 | 225 |
| WA-159 | RAB | 690,093 | 7,585,077 | 4.0 | 360 | -90 | 360 |
| WA-160 | RAB | 690,154 | 7,585,075 | 3.1 | 360 | -90 | 340 |
| WA-161 | RAB | 690,215 | 7,585,073 | 4.0 | 360 | -90 | 615 |
| WA-162 | RAB | 690,276 | 7,585,071 | 4.0 | 360 | -90 | 605 |
| WA-163 | RAB | 689,892 | 7,584,595 | 3.4 | 360 | -90 | 975 |
| WA-164 | RAB | 689,953 | 7,584,593 | 4.0 | 360 | -90 | 375 |
| WA-165 | RAB | 690,014 | 7,584,590 | 3.1 | 360 | -90 | 245 |
| WA-167 | RAB | 690,158 | 7,585,197 | 4.0 | 360 | -90 | 500 |
| WA-168 | RAB | 690,219 | 7,585,195 | 4.0 | 360 | -90 | 1,050 |
| WA-169 | RAB | 690,280 | 7,585,193 | 4.0 | 360 | -90 | 255 |
| WA-170 | RAB | 690,342 | 7,585,191 | 4.0 | 360 | -90 | 160 |
Duke Exploration Limited
www.duke-exploration.com.au
21
| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| WA-172 | RAB | 688,451 | 7,585,380 | 4.0 | 360 | -90 | 1,125 |
| WA-173 | RAB | 688,390 | 7,585,382 | 4.0 | 360 | -90 | 975 |
| WA-174 | RAB | 688,329 | 7,585,384 | 2.7 | 360 | -90 | 705 |
| WA-175 | RAB | 688,268 | 7,585,386 | 2.7 | 360 | -90 | 700 |
| WA-176 | RAB | 688,206 | 7,585,388 | 4.0 | 360 | -90 | 520 |
| WA-177 | RAB | 688,154 | 7,585,400 | 4.0 | 360 | -90 | 440 |
| WA-178 | RAB | 688,083 | 7,585,386 | 4.0 | 360 | -90 | 305 |
| WA-179 | RAB | 688,018 | 7,585,381 | 4.0 | 360 | -90 | 430 |
| WA-180 | RAB | 687,968 | 7,585,376 | 4.0 | 360 | -90 | 710 |
| WA-181 | RAB | 687,900 | 7,585,374 | 4.0 | 360 | -90 | 465 |
| WA-182 | RAB | 687,848 | 7,585,363 | 2.1 | 360 | -90 | 380 |
| WA-183 | RAB | 687,784 | 7,585,357 | 2.1 | 360 | -90 | 230 |
| WA-184 | RAB | 687,728 | 7,585,350 | 4.0 | 360 | -90 | 1,425 |
| WA-185 | RAB | 687,665 | 7,585,344 | 1.5 | 360 | -90 | 685 |
| WA-186 | RAB | 687,603 | 7,585,331 | 4.0 | 360 | -90 | 640 |
| WA-187 | RAB | 687,545 | 7,585,327 | 4.0 | 360 | -90 | 470 |
| WA-191 | RAB | 688,307 | 7,584,773 | 3.4 | 360 | -90 | 100 |
| WA-192 | RAB | 688,368 | 7,584,771 | 1.8 | 360 | -90 | 155 |
| WA-193 | RAB | 688,429 | 7,584,769 | 3.7 | 360 | -90 | 100 |
| WA-194 | RAB | 688,491 | 7,584,766 | 3.7 | 360 | -90 | 125 |
| WA-195 | RAB | 688,552 | 7,584,764 | 3.7 | 360 | -90 | 50 |
| WA-196 | RAB | 688,613 | 7,584,762 | 2.4 | 360 | -90 | 170 |
| WA-197 | RAB | 688,674 | 7,584,760 | 2.4 | 360 | -90 | 175 |
| WA-198 | RAB | 688,735 | 7,584,758 | 1.5 | 360 | -90 | 130 |
| WA-199 | RAB | 688,796 | 7,584,756 | 2.4 | 360 | -90 | 225 |
| WA-200 | RAB | 688,857 | 7,584,753 | 2.7 | 360 | -90 | 140 |
| WA-201 | RAB | 688,918 | 7,584,751 | 2.7 | 360 | -90 | 475 |
| WA-202 | RAB | 688,980 | 7,584,749 | 3.1 | 360 | -90 | 170 |
| WA-203 | RAB | 689,041 | 7,584,747 | 4.0 | 360 | -90 | 370 |
| WA-204 | RAB | 689,102 | 7,584,745 | 4.0 | 360 | -90 | 795 |
| WA-205 | RAB | 689,163 | 7,584,743 | 3.1 | 360 | -90 | 2,000 |
| WA-206 | RAB | 687,426 | 7,585,332 | 1.5 | 360 | -90 | 260 |
| WA-207 | RAB | 687,316 | 7,585,333 | 1.5 | 360 | -90 | 175 |
| WA-208 | RAB | 687,195 | 7,585,329 | 1.5 | 360 | -90 | 130 |
| WA-209 | RAB | 687,084 | 7,585,333 | 1.5 | 360 | -90 | 415 |
| WA-210 | RAB | 686,980 | 7,585,333 | 1.5 | 360 | -90 | 465 |
| WA-211 | RAB | 687,552 | 7,585,455 | 1.5 | 360 | -90 | 460 |
| WA-212 | RAB | 687,555 | 7,585,581 | 1.5 | 360 | -90 | 595 |
| WA-213 | RAB | 687,561 | 7,585,704 | 1.5 | 360 | -90 | 680 |
| WA-214 | RAB | 687,561 | 7,585,836 | 1.5 | 360 | -90 | 280 |
| WA-215 | RAB | 687,562 | 7,585,947 | 1.5 | 360 | -90 | 120 |
| WA-216 | RAB | 687,554 | 7,585,221 | 1.5 | 360 | -90 | 190 |
| WA-217 | RAB | 687,554 | 7,585,101 | 1.5 | 360 | -90 | 195 |
| WA-218 | RAB | 687,560 | 7,584,987 | 1.5 | 360 | -90 | 190 |
| WA-219 | RAB | 687,559 | 7,584,884 | 1.5 | 360 | -90 | 165 |
| WA-220 | RAB | 687,559 | 7,584,751 | 1.5 | 360 | -90 | 125 |
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| Hole | Type | Easting | Northing | Depth | Azimuth | Dip | Max Cu ppm |
|---|---|---|---|---|---|---|---|
| WA-221 | RAB | 689,224 | 7,584,741 | 4.0 | 360 | -90 | 1,070 |
| WA-222 | RAB | 689,285 | 7,584,738 | 4.0 | 360 | -90 | 1,240 |
| WA-223 | RAB | 689,376 | 7,585,592 | 1.5 | 360 | -90 | 245 |
| WA-224 | RAB | 689,368 | 7,585,531 | 1.2 | 360 | -90 | 295 |
| WA-225 | RAB | 689,342 | 7,585,471 | 3.1 | 360 | -90 | 3,600 |
| WA-226 | RAB | 689,321 | 7,585,410 | 3.7 | 360 | -90 | 3,500 |
| WA-227 | RAB | 689,319 | 7,585,349 | 1.5 | 360 | -90 | 2,300 |
| WA-228 | RAB | 689,347 | 7,585,287 | 2.4 | 360 | -90 | 2,360 |
| WA-229 | RAB | 689,364 | 7,585,225 | 4.0 | 360 | -90 | 3,200 |
| WA-230 | RAB | 689,368 | 7,585,348 | 3.7 | 360 | -90 | 1,800 |
| WA-231 | RAB | 689,630 | 7,585,828 | 3.1 | 360 | -90 | 465 |
| WA-232 | RAB | 690,272 | 7,584,949 | 1.5 | 360 | -90 | 195 |
| WA-233 | RAB | 690,333 | 7,584,946 | 4.0 | 360 | -90 | 215 |
| WA-234 | RAB | 690,394 | 7,584,944 | 4.0 | 360 | -90 | 165 |
| WA-235 | RAB | 690,455 | 7,584,942 | 4.0 | 360 | -90 | 185 |
| WA-236 | RAB | 689,671 | 7,585,796 | 2.1 | 360 | -90 | 320 |
| WA-237 | RAB | 689,701 | 7,585,764 | 2.1 | 360 | -90 | 540 |
| WA-238 | RAB | 689,686 | 7,585,704 | 2.7 | 360 | -90 | 290 |
| WA-239 | RAB | 689,666 | 7,585,643 | 0.9 | 360 | -90 | 490 |
| WA-240 | RAB | 689,694 | 7,585,581 | 1.5 | 360 | -90 | 175 |
| WA-241 | RAB | 689,759 | 7,585,517 | 1.5 | 360 | -90 | 135 |
| WA-242 | RAB | 689,739 | 7,585,457 | 4.0 | 360 | -90 | 330 |
| WA-243 | RAB | 689,688 | 7,585,397 | 1.2 | 360 | -90 | 70 |
| WA-244 | RAB | 689,612 | 7,585,339 | 4.0 | 360 | -90 | 615 |
| WA-245 | RAB | 689,549 | 7,585,280 | 4.0 | 360 | -90 | 3,700 |
| WA-246 | RAB | 689,487 | 7,585,252 | 3.7 | 360 | -90 | 2,100 |
| WA-247 | RAB | 689,424 | 7,585,205 | 3.7 | 360 | -90 | 1,350 |
| WA-248 | RAB | 689,767 | 7,585,034 | 3.7 | 360 | -90 | 750 |
| WA-249 | RAB | 689,763 | 7,585,089 | 3.7 | 360 | -90 | 1,480 |
| WA-250 | RAB | 689,753 | 7,585,150 | 3.7 | 360 | -90 | 1,925 |
| WA-251 | RAB | 689,715 | 7,585,201 | 4.0 | 360 | -90 | 680 |
| WA-252 | RAB | 689,671 | 7,585,257 | 3.7 | 360 | -90 | 465 |
| WA-253 | RAB | 689,704 | 7,585,336 | 4.0 | 360 | -90 | 580 |
| WTDH001 | Diamond | 689,286 | 7,585,100 | 345.0 | 0 | -60 | 2,488 |
| WTDH002 | Diamond | 689,444 | 7,585,397 | 432.0 | 0 | -60 | 12,077 |
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Appendix 2 – Waitara historic drill intersections using a 0.2% Cu cut off, with a minimum width of 1 metre and including 3 metres of internal waste (MGA94 Zone 55)
| Hole | East | North | From | To | Width | Cu % |
|---|---|---|---|---|---|---|
| W-01 | 689,362 | 7,585,347 | 8.0 | 10.0 | 2.0 | 0.37 |
| W-01 | 689,362 | 7,585,347 | 24.0 | 40.0 | 16.0 | 0.25 |
| W-01 | 689,362 | 7,585,347 | 46.0 | 70.0 | 24.0 | 0.31 |
| W-01 | 689,362 | 7,585,347 | 74.0 | 86.0 | 12.0 | 0.43 |
| W-01 | 689,362 | 7,585,347 | 92.0 | 136.0 | 44.0 | 0.29 |
| W-01 | 689,362 | 7,585,347 | 144.0 | 158.0 | 14.0 | 0.26 |
| W-01 | 689,362 | 7,585,347 | 166.0 | 168.0 | 2.0 | 0.20 |
| W-01 | 689,362 | 7,585,347 | 174.0 | 182.0 | 8.0 | 0.24 |
| W-01 | 689,362 | 7,585,347 | 192.0 | 194.0 | 2.0 | 0.23 |
| W-01 | 689,362 | 7,585,347 | 200.0 | 214.0 | 14.0 | 0.26 |
| W-01 | 689,362 | 7,585,347 | 220.0 | 222.0 | 2.0 | 0.28 |
| W-01 | 689,362 | 7,585,347 | 226.0 | 228.0 | 2.0 | 0.27 |
| W-01 | 689,362 | 7,585,347 | 240.0 | 242.0 | 2.0 | 0.20 |
| W-01 | 689,362 | 7,585,347 | 246.0 | 248.0 | 2.0 | 0.24 |
| W-01 | 689,362 | 7,585,347 | 260.0 | 270.0 | 10.0 | 0.33 |
| W-01 | 689,362 | 7,585,347 | 274.0 | 276.0 | 2.0 | 0.29 |
| W-01 | 689,362 | 7,585,347 | 280.0 | 282.0 | 2.0 | 0.20 |
| W-02 | 689,633 | 7,585,321 | 41.0 | 43.0 | 2.0 | 0.30 |
| W-02 | 689,633 | 7,585,321 | 47.0 | 49.0 | 2.0 | 0.20 |
| W-02 | 689,633 | 7,585,321 | 61.0 | 63.0 | 2.0 | 0.22 |
| W-02 | 689,633 | 7,585,321 | 75.0 | 92.0 | 17.0 | 0.23 |
| W-02 | 689,633 | 7,585,321 | 112.0 | 114.0 | 2.0 | 0.21 |
| W-02 | 689,633 | 7,585,321 | 116.0 | 118.0 | 2.0 | 0.22 |
| W-02 | 689,633 | 7,585,321 | 132.0 | 150.0 | 18.0 | 0.23 |
| W-04 | 689,305 | 7,585,110 | 10.0 | 12.0 | 2.0 | 0.24 |
| W-04 | 689,305 | 7,585,110 | 18.0 | 24.0 | 6.0 | 0.25 |
| W-04 | 689,305 | 7,585,110 | 28.0 | 32.0 | 4.0 | 0.27 |
| W-04 | 689,305 | 7,585,110 | 50.0 | 54.0 | 4.0 | 0.28 |
| W-04 | 689,305 | 7,585,110 | 58.0 | 60.0 | 2.0 | 0.26 |
| W-04 | 689,305 | 7,585,110 | 64.0 | 68.0 | 4.0 | 0.22 |
| W-04 | 689,305 | 7,585,110 | 78.0 | 80.0 | 2.0 | 0.20 |
| W-04 | 689,305 | 7,585,110 | 94.0 | 96.0 | 2.0 | 0.20 |
| W-04 | 689,305 | 7,585,110 | 102.0 | 108.0 | 6.0 | 0.21 |
| W-04 | 689,305 | 7,585,110 | 116.0 | 118.0 | 2.0 | 0.21 |
| W-04 | 689,305 | 7,585,110 | 128.0 | 130.0 | 2.0 | 0.27 |
| W-04 | 689,305 | 7,585,110 | 146.0 | 148.0 | 2.0 | 0.20 |
| W-05 | 688,999 | 7,585,596 | 32.1 | 38.7 | 6.6 | 0.27 |
| W-05 | 688,999 | 7,585,596 | 44.0 | 46.7 | 2.7 | 0.22 |
| W-05 | 688,999 | 7,585,596 | 53.0 | 55.0 | 2.0 | 0.22 |
| W-05 | 688,999 | 7,585,596 | 58.4 | 60.5 | 2.1 | 0.20 |
| W-05 | 688,999 | 7,585,596 | 71.0 | 73.0 | 2.0 | 0.21 |
| W-05 | 688,999 | 7,585,596 | 75.0 | 79.0 | 4.0 | 0.20 |
| W-06 | 689,712 | 7,584,960 | 21.0 | 29.0 | 8.0 | 0.45 |
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| Hole | East | North | From | To | Width | Cu % |
|---|---|---|---|---|---|---|
| W-06 | 689,703 | 7,584,961 | 35.0 | 49.0 | 14.0 | 0.28 |
| W-06 | 689,649 | 7,584,970 | 151.0 | 153.0 | 2.0 | 0.21 |
| W-07 | 689,120 | 7,585,353 | 18.0 | 22.0 | 4.0 | 0.27 |
| W-07 | 689,120 | 7,585,353 | 26.0 | 34.0 | 8.0 | 0.23 |
| W-07 | 689,120 | 7,585,353 | 38.0 | 42.0 | 4.0 | 0.23 |
| W-07 | 689,120 | 7,585,353 | 48.0 | 50.0 | 2.0 | 0.20 |
| W-07 | 689,120 | 7,585,353 | 52.0 | 54.0 | 2.0 | 0.26 |
| W-07 | 689,120 | 7,585,353 | 76.0 | 88.0 | 12.0 | 0.25 |
| W-07 | 689,120 | 7,585,353 | 92.0 | 102.0 | 10.0 | 0.25 |
| W-08 | 689,952 | 7,584,824 | 9.0 | 18.0 | 9.0 | 0.23 |
| W-08 | 689,952 | 7,584,824 | 34.0 | 36.0 | 2.0 | 0.23 |
| W-08 | 689,952 | 7,584,824 | 44.0 | 78.0 | 34.0 | 0.26 |
| W-08 | 689,952 | 7,584,824 | 90.0 | 94.0 | 4.0 | 0.21 |
| W-08 | 689,952 | 7,584,824 | 98.0 | 106.0 | 8.0 | 0.30 |
| W-08 | 689,952 | 7,584,824 | 122.0 | 124.0 | 2.0 | 0.23 |
| W-08 | 689,952 | 7,584,824 | 144.0 | 146.0 | 2.0 | 0.26 |
| W-PDH3 | 690,005 | 7,586,036 | 22.0 | 38.0 | 16.0 | 2.14 |
| W-PDH3 | 690,005 | 7,586,036 | 54.0 | 56.0 | 2.0 | 0.25 |
| W-PDH4 | 689,918 | 7,585,994 | 22.0 | 26.0 | 4.0 | 0.40 |
| W-PDH4 | 689,918 | 7,585,994 | 30.0 | 32.0 | 2.0 | 0.35 |
| W-PDH5 | 689,595 | 7,585,626 | 30.0 | 32.0 | 2.0 | 0.26 |
| W-PDH6 | 689,466 | 7,585,702 | 36.0 | 38.0 | 2.0 | 0.24 |
| W-PDH8 | 689,610 | 7,585,175 | 36.0 | 42.0 | 6.0 | 0.65 |
| W-PDH9 | 689,592 | 7,585,037 | 30.0 | 34.0 | 4.0 | 0.21 |
| W-PDH9 | 689,592 | 7,585,037 | 38.0 | 57.0 | 19.0 | 0.37 |
| W-PDH10 | 689,432 | 7,584,638 | 32.0 | 36.0 | 4.0 | 0.41 |
| W-PDH12 | 690,312 | 7,584,576 | 44.0 | 58.0 | 14.0 | 0.26 |
| W-PDH13 | 690,127 | 7,584,809 | 8.0 | 12.0 | 4.0 | 0.25 |
| W-PDH15 | 689,126 | 7,584,861 | 4.0 | 16.0 | 12.0 | 0.29 |
| WA-019 | 688,949 | 7,585,607 | 1.2 | 4.0 | 2.7 | 0.24 |
| WA-081 | 688,626 | 7,585,129 | 0.6 | 4.0 | 3.4 | 0.30 |
| WA-137 | 690,025 | 7,584,896 | 2.7 | 4.0 | 1.2 | 0.23 |
| WA-152 | 689,962 | 7,584,837 | 0.6 | 4.0 | 3.4 | 0.32 |
| WA-153 | 690,023 | 7,584,835 | 2.7 | 4.0 | 1.2 | 0.23 |
| WA-154 | 690,084 | 7,584,833 | 0.3 | 4.0 | 3.7 | 0.37 |
| WA-205 | 689,163 | 7,584,743 | 1.5 | 3.0 | 1.5 | 0.20 |
| WA-225 | 689,342 | 7,585,471 | 1.2 | 3.0 | 1.8 | 0.36 |
| WA-226 | 689,321 | 7,585,410 | 1.5 | 3.7 | 2.1 | 0.35 |
| WA-228 | 689,347 | 7,585,287 | 1.2 | 2.4 | 1.2 | 0.24 |
| WA-229 | 689,364 | 7,585,225 | 1.5 | 4.0 | 2.4 | 0.32 |
| WA-245 | 689,549 | 7,585,280 | 0.6 | 4.0 | 3.4 | 0.36 |
| WA-246 | 689,487 | 7,585,252 | 0.6 | 3.7 | 3.0 | 0.21 |
| WTDH001 | 689,286 | 7,585,109 | 15.0 | 21.0 | 6.0 | 0.25 |
| WTDH001 | 689,286 | 7,585,140 | 28.0 | 130.0 | 102.0 | 0.22 |
| WTDH001 | 689,286 | 7,585,232 | 255.0 | 273.0 | 18.0 | 0.24 |
| WTDH002 | 689,444 | 7,585,398 | 1.0 | 4.0 | 3.0 | 0.20 |
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| Hole | East | North | From | To | Width | Cu % |
|---|---|---|---|---|---|---|
| WTDH002 | 689,444 | 7,585,427 | 11.0 | 110.0 | 99.0 | 0.35 |
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26
Appendix 2 - JORC Code, 2012 Edition, Checklist of Assessment and Reporting Criteria
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Sampling | • | Nature and quality of sampling (e.g., cut channels, | • | One-metre primary samples were collected using a |
| techniques | random chips, or specific specialised industry standard | reverse circulation drill rig, which when split is | ||
| measurement tools appropriate to the minerals under | approximately 10% of the total meter sample. The quality | |||
| investigation, such as down hole gamma sondes, or | of the sample has been being actively measured using | |||
| handheld XRF instruments, etc). These examples should | various quality control techniques, focusing on keeping | |||
| not be taken as limiting the broad meaning of sampling. | holes dry, reducing dust loss and optimising sample | |||
| • | Include reference to measures taken to ensure sample | delimitation. The quality of the sampling has been | ||
| representivity and the appropriate calibration of any | independently reviewed and is deemed to be high, and | |||
| measurement tools or systems used. | fit-for-purpose to be used in mineral resource | |||
| • | Aspects of the determination of mineralisation that are | estimations. Various quality control metrics are actively | ||
| Material to the Public Report. | monitored to ensure the quality of samples collected. | |||
| • | In cases where ‘industry standard’ work has been done | Such measures include: | ||
| this would be relatively simple (e.g., ‘reverse circulation | • Every effort is made to ensure all samples are drilled |
|||
| drilling was used to obtain 1 m samples from which 3 kg | dry and when this is not possible samples are logged | |||
| was pulverised to produce a 30 g charge for fire assay’). In | as wet, and the quality designation ranking lowered | |||
| other cases, more explanation may be required, such as | and considered in the resource estimation. | |||
| where there is coarse gold that has inherent sampling | • The measuring and monitoring of total RC sample |
|||
| problems. Unusual commodities or mineralisation types | weights to measure total recovery and metre | |||
| (e.g., submarine nodules) may warrant disclosure of | delineation of the drilling (after correcting for | |||
| detailed information. | density based on lithology averages and volume | |||
| differences based on bit size) | ||||
| • | pXRF analysis for some alteration and common rock- | |||
| forming elements was carried out on every metre by | ||||
| taking a small ~25g sample from the bulk RC sample and | ||||
| analysing using an Olympus Vanta M series XRF Analyser | ||||
| with all three beams enabled with each beam set to 10 | ||||
| seconds each. | ||||
| • | Calibration checks were performed by the handheld XRF | |||
| analysers at least once fortnightly to ensure that the | ||||
| analyser was operating within factory specifications | ||||
| Drilling | • | Drill type (e.g., core, reverse circulation, open-hole | • | Reverse circulation drilling equipment with face |
| techniques | hammer, rotary air blast, auger, Bangka, sonic, etc) and | sampling hammers were used to collect samples. The | ||
| details (e.g., core diameter, triple or standard tube, depth | drilling was conducted by a McCulloch DR 800 drill rig | |||
| of diamond tails, face-sampling bit or other type, whether | with Sullair 350/1100 compressor, a Mercedes powered | |||
| core is oriented and if so, by what method, etc). | 350/1100 Sullair compressor. Boosters is a Detroit 8V92 | |||
| type 650 psi to a maximum of 900psi. All drill bits used | ||||
| were face sampling Schramm 650 series 143 mm, had a | ||||
| shroud size of 141 mm, and they were sized to suit as | ||||
| they wore. Teeth are 8 PCD outer and 9 tungsten inner | ||||
| teeth. All rods wereManutech Rods which are 6 metres | ||||
| long 4 inch outside diameter. All sample hoses are 3 inch | ||||
| Inside diameter. | ||||
| Drill sample | • | Method of recording and assessing core and chip sample | • | All sample recovery information was digitally recorded on |
| recovery | recoveries and results assessed. | the rig using locked auto-validating excel spreadsheets. | ||
| • | Measures taken to maximise sample recovery and ensure | Samples were weighed using digital scales and recoveries | ||
| representative nature of the samples. | were estimated based on average density of logged | |||
| • | Whether a relationship exists between sample recovery | lithology, bit diameter (indicating volume of sample) and | ||
| and grade and whether sample bias may have occurred | total sample weight. The recovery was constantly | |||
| due to preferential loss/gain of fine/coarse material. | monitored using live-updating graphs indicating when | |||
| recoveries were out of control or showing unfavourable | ||||
| trends. | ||||
| • | An auxiliary booster was used to maximise air pressure to | |||
| improve sample recovery, which allowed holes to be | ||||
| drilled dry. Where samples were drilled wet they have | ||||
| been logged as such. Furthermore, constant monitoring | ||||
| of recoveries via measurement and evaluation of total | ||||
| sample weights on the rig enable recoveries to be | ||||
| maximised. |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| • | There is no relationship between sample recovery and | |||
| grade and no correction or weighting factors were | ||||
| required. | ||||
| Logging | • | Whether core and chip samples have been geologically | • | Chip samples have been geologically and geotechnically |
| and geotechnically logged to a level of detail to support | logged to a level of detail to support mineral resource | |||
| appropriate Mineral Resource estimation, mining studies | estimation, mining studies and metallurgical studies. All | |||
| and metallurgical studies. | chip samples have been geologically logged to 1m | |||
| • | Whether logging is qualitative or quantitative in nature. | resolution on the rig recording information on rock type, | ||
| Core (or costean, channel, etc) photography. | mineralogy, mineralisation, fabrics, and textures. This | |||
| • | The total length and percentage of the relevant | logging is paired with logging conducted using the | ||
| intersections logged. | downhole Televiewer information which can log to at | |||
| least 10cm resolution and records structural information | ||||
| for contacts, foliation, banding, veining etc. in the form | ||||
| of dip and dip direction measurements., resistivity, | ||||
| natural gamma and density measurements are also used | ||||
| to assist this logging. | ||||
| • | The logging for the RC drilling was qualitative for the | |||
| geological data collection and quantitative for structural, | ||||
| geotechnical and geochemical data. A handheld XRF was | ||||
| used to collect continuous geochemical data and | ||||
| Televiewer optical and acoustic data collection allows | ||||
| the measurement of structural and geotechnical data. | ||||
| • | All one metre samples from the drilling have been | |||
| geologically logged and the geological data recorded in | ||||
| the drill database. Subsamples were also collected and | ||||
| stored in chip trays for future reference. | ||||
| Sub- | • | If core, whether cut or sawn and whether quarter, half or | • | All other samples were split using a cone splitter fixed to |
| sampling | all core taken. | the side of the drill rig, a device aimed at reducing | ||
| techniques and sample |
• • |
If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry. For all sample types, the nature, quality and |
splitting variance. Holes were kept dry wherever possible using an auxiliary booster. The cone Splitter is able to deal with wet samples without introducing bias. |
|
| preparation | appropriateness of the sample preparation technique. | This has been independently reviewed and is considered | ||
| • | Quality control procedures adopted for all sub-sampling | an appropriate technique to collect large-volume | ||
| stages to maximise representivity of samples. | samples when extractor, delimitation and preparation | |||
| • | Measures taken to ensure that the sampling is | errors are well managed. | ||
| representative of the in situ material collected, including | • | For this project, the quality assurance and quality | ||
| for instance results for field duplicate/second-half | control on the primary calico sample were excellent, | |||
| sampling. | resulting in good metre delineation, minimal sample loss | |||
| • | Whether sample sizes are appropriate to the grain size of | and good water management. | ||
| the material being sampled. | • | RC drill chips were delivered to a cone splitter, then | ||
| weighed on receipt at the laboratory and dried in an LPG | ||||
| oven for 24hrs @ 95° C. Samples to 3kg are full | ||||
| pulverised to 85% passing 75µm in a FLSmidth LM5 mill. | ||||
| Samples >3kg are spilt 50:50 using a 25mm aperture | ||||
| riffle splitter prior to pulverising. Samples were then | ||||
| scooped from the LM5 bowl and put into brown paper | ||||
| bags, after which the final charge weight was prepared | ||||
| by scooping from the bag using a spoon. | ||||
| • | The quality of the sampling preparation has been | |||
| discussed in the announcement text and is considered of | ||||
| very good quality, supported by sufficient quality control | ||||
| data (duplicates). The techniques have all been | ||||
| independently reviewed and are all considered | ||||
| appropriate and fit for purpose. | ||||
| • | The sample size is considered appropriate for the | |||
| mineralisation style. | ||||
| Quality of | • | The nature, quality and appropriateness of the assaying | • | The nature of the laboratory processes has been |
| assay data | and laboratory procedures used and whether the | discussed in the announcement text in more detail. The | ||
| and laboratory |
• | technique is considered partial or total. For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the |
total 50g fire assay technique with aqua regia digest and AAS finish is considered appropriate for Au analysis. ME- ICP was used to analyse a total of 33 elements, including |
|
| tests | analysis including instrument make and model, reading | Cu and Ag. When a sample returned a value exceeding | ||
| times, calibrations factors applied and their derivation, | the analysis limit of Cu or Ag, the sample was re- | |||
| etc. | analysed using an ore grade analysis method to | |||
| • | Nature of quality control procedures adopted (e.g., | accurately define the final analysis grade. The quality | ||
| standards, blanks, duplicates, external laboratory checks) | was carefully controlled by both Duke and ALS. | |||
| and whether acceptable levels of accuracy (i.e., lack of | • | A pXRF Vanta m-series analysed each sample using 3 | ||
| bias) andprecision have been established. | beams ingeochemistrymode. Each beam was set to 10 |
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| seconds for a total of 30 seconds and targeting 39 | ||||
| elements, specifically anomalous copper. The pXRF | ||||
| Vanta m-series was calibrated once a week and the | ||||
| prolene pXRF windows were changed upon noticing any | ||||
| imperfection on the surface. A blank standard was | ||||
| analysed once a week or following the prolene window | ||||
| change. | ||||
| • | QC samples were inserted in the form of Certified | |||
| Reference Materials, blanks, crush duplicates and pulp | ||||
| duplicates. The results showed the laboratory delivered | ||||
| consistent results throughout the campaign. Bias and | ||||
| variance acceptance testing showed positive results, | ||||
| with the only issue noted the elevated variability in | ||||
| pulps. | ||||
| Verification | • | The verification of significant intersections by either | • | All significant intersections were inspected and verified |
| of sampling | independent or alternative company personnel. | by the Competent Person. | ||
| and | • | The use of twinned holes. | • | The data is collected via Duke Exploration Ltd's auto- |
| assaying | • | Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) |
validating, controlled spreadsheets with drop down menu entry. These sheets are loaded into an Access |
|
| protocols. | database using automatic scripting and are then | |||
| • | Discuss any adjustment to assay data. | subjected to a range of further tests for errors. Any | ||
| issues were communicated to site within 24 hours and | ||||
| resolved before the data was accepted. The data is then | ||||
| validated within the database and brought into | ||||
| Micromine and further visual checks conducted. One | ||||
| database administrator conducts all data merging and | ||||
| storage into the database to ensure the integrity of the | ||||
| data. | ||||
| • | No data has been adjusted. | |||
| Location of | • | Accuracy and quality of surveys used to locate drill holes | • | The drill holes have been accurately surveyed using a |
| data points | (collar and down-hole surveys), trenches, mine workings | mmGPS in MGA 94/Zone 54. | ||
| and other locations used in Mineral Resource estimation. | • | Downhole survey data was collected using a North | ||
| • | Specification of the grid system used. | seeking solid state gyro during the downhole data | ||
| • | Quality and adequacy of topographic control. | acquisition. The gyro results were checked by the down | ||
| hole surveyor by comparing them with the deviation | ||||
| data obtained with other down hole tools (OPTV and | ||||
| ATV) and by duplicating a total of three surveys. The | ||||
| location accuracy of sample data points is considered by | ||||
| the Competent person to be highly accurate and | ||||
| properly quality controlled. | ||||
| • | Topographic control has been adopted from a recent | |||
| aerial geophysical programme and has been corrected | ||||
| to height values from the DGPS survey. The topographic | ||||
| control is considered to be highly accurate. | ||||
| Data | • | Data spacing for reporting of Exploration Results. | • | The drilling reported has been carried out on a |
| spacing and | • | Whether the data spacing and distribution is sufficient to | 60mx60m grid. The holes are drilled to an average depth | |
| distribution | establish the degree of geological and grade continuity | of around180m. | ||
| appropriate for the Mineral Resource and Ore Reserve | • | Geological and grade continuity has been confirmed | ||
| estimation procedure(s) and classifications applied. | across the 60m drill spacing. | |||
| • | Whether sample compositing has been applied. | • | No physical compositing of samples has occurred in this | |
| drilling. | ||||
| Orientation | • | Whether the orientation of sampling achieves unbiased | • | The drilling orientation has been determined via |
| of data in | sampling of possible structures and the extent to which | Televiewer structural interpretation and hole are | ||
| relation to geological |
• | this is known, considering the deposit type. If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to |
oriented perpendicular to the main banding and foliation surface. Where the terrain is challenging the drill pads were moved along the line and the drill dip |
|
| structure | have introduced a sampling bias, this should be assessed | was steepened to intersect the drill target at depth. In | ||
| and reported if material. | these circumstances the drill intersection is not | |||
| perpendicular to the geological structures or | ||||
| mineralisation. | ||||
| • | There is no apparent bias in any of the drilling | |||
| orientations used. | ||||
| Sample | • | The measures taken to ensure sample security. | • | All samples were removed from site on the day of drilling |
| security | and stored inside a secure warehouse facility. The | |||
| samples were transported by a certified freight company | ||||
| to ALS Laboratories. The samples are not left unattended |
Duke Exploration Limited
www.duke-exploration.com.au
29
| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| and a chain of custody is maintained throughout the | ||||
| shipping process. | ||||
| Audits or | • | The results of any audits or reviews of sampling | • | No audits have been conducted by external parties at this |
| reviews | techniques and data. | stage. Internal review by various company personnel has | ||
| occurred. |
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| Mineral | • | Type, reference name/number, location and | • | EPM 26499 ‘Bundarra’ is located south of Nebo, QLD, |
| tenement and | ownership including agreements or material issues | and is held 100% by Duke Exploration Ltd. Parts of | ||
| land tenure | with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical |
the tenement have native title interests with the Barada Barna people. |
||
| status | sites, wilderness or national park and environmental | • | No known impediments. | |
| settings. | ||||
| • | The security of the tenure held at the time of reporting | |||
| along with any known impediments to obtaining a | ||||
| licence to operate in the area. | ||||
| Exploration | • | Acknowledgment and appraisal of exploration by | • | Production at Mt Flora began in the 1880s. Numerous |
| done by other | other parties. | shafts, to a maximum depth of 38 m, adits and | ||
| parties | surface workings were developed. Mining continued during the 1970s. Exploration since the 1960s |
|||
| included geological mapping (Endeavour Oil 1974-75) | ||||
| soil surveys (CRA Exploration 1962, Endeavour Oil | ||||
| 1974-75, Regency Resources 2005), rock chip | ||||
| sampling (Endeavour Oil 1974-75, Chesterfield | ||||
| Mining and Exploration 1983, Elliot Exploration 1987, | ||||
| Dominion Gold Operations 1991, Queensland Metals | ||||
| Corporation 1994), Geophysics (magnetics by Planet | ||||
| Metals in 1967 and Elliot Exploration 1987, gravity by | ||||
| Carpentaria Gold in 1984, IP by Endeavour Oil in | ||||
| 1975, and VTEM by Regency in 2014). Endeavour Oil | ||||
| drilled six diamond drillholes in 1975, and | ||||
| Queensland Metals Corporation drilled two | ||||
| percussion holes in 1994. Endeavour Oil 1974-75 | ||||
| carried out trial underground mining, metallurgical | ||||
| test work and resource estimation. Endeavour Oil did | ||||
| extensive work at Mt Flora from 1974-76, including | ||||
| detailed 1:500 scale mapping, rock chip sampling, | ||||
| geophysics, drilling and extending adits and shaft | ||||
| sinking. Petrology was done on ore material taken | ||||
| from the base of a shaft sunk on the Flora lode in | ||||
| 1972 (Endeavour Oil, 1974). Near surface narrow lode | ||||
| mineralisation was detected in the Mt Flora area | ||||
| using IP geophysics, and Endeavour Oil considered IP | ||||
| to be a useful reconnaissance tool. Six diamond holes | ||||
| were drilled to successfully test IP anomalies at | ||||
| depth. In 1974-75 Endeavour Oil undertook a mining | ||||
| exploration programme and used this work to | ||||
| complete a resource estimate for the Mt Flora lodes. | ||||
| • | Elliot Exploration re-assayed the Endeavour Oil core | |||
| for gold in 1987. In 1994 Normandy drilled two holes: | ||||
| MFP 01 and MFP 02 near the top of Mt Flora, and | ||||
| Regency Mines 2001-2013 did mapping and soil | ||||
| sampling, and apparently drilled RC holes in 2001, | ||||
| although no data were reported. | ||||
| Geology | • | Deposit type, geological setting and style of | • | Copper, gold, silver and molybdenum mineralisation |
| mineralisation. | at Mt Flora is located within 300 m of the contact | |||
| zone between the Bundarra Granodiorite and Back | ||||
| Creek Groupsediments. In the Mt Flora area,shale, |
Duke Exploration Limited www.duke-exploration.com.au
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| siltstone and sandstone has been contact | ||||
| metamorphosed to an andalusite hornfels. | ||||
| Mineralisation at Mt Flora occurs in structurally | ||||
| controlled lodes, which crosscut the granodiorite- | ||||
| sediment contact, with mineralisation occurring on | ||||
| both sides of the contact. Mineralisation is hosted by | ||||
| faults and fractures, associated with sheeted quartz | ||||
| veins, hematite, limonite and pyrite. The lodes have | ||||
| massive sulphides with high copper percentages | ||||
| (>10%). Silver and zinc are present, as well as | ||||
| molybdenum and gold. | ||||
| Drill hole | • | A summary of all information material to the | • | See Table 1 in the main text. |
| Information | understanding of the exploration results including a | |||
| tabulation of the following information for all | ||||
| Material drill holes: | ||||
oeasting and northing of the drill hole collar |
||||
oelevation or RL (Reduced Level – elevation above |
||||
| sea level in metres) of the drill hole collar | ||||
odip and azimuth of the hole |
||||
odown hole length and interception depth |
||||
ohole length. |
||||
| • | If the exclusion of this information is justified on the | |||
| basis that the information is not Material and this | ||||
| exclusion does not detract from the understanding of | ||||
| the report, the Competent Person should clearly | ||||
| explain why this is the case. | ||||
| Data | • | In reporting Exploration Results, weighting averaging | • | No data aggregation methods have been used in this |
| aggregation | techniques, maximum and/or minimum grade | announcement. | ||
| methods | truncations (e.g., cutting of high grades) and cut-off grades are usually Material and should be stated. |
|||
| • | Where aggregate intercepts incorporate short lengths | |||
| of high grade results and longer lengths of low grade | ||||
| results, the procedure used for such aggregation | ||||
| should be stated and some typical examples of such | ||||
| aggregations should be shown in detail. | ||||
| • | The assumptions used for any reporting of metal | |||
| equivalent values should be clearly stated. | ||||
| Relationship | • | These relationships are particularly important in the | • | The mean copper-mineralised vein direction is |
| between | reporting of Exploration Results. | 40/099, while the drillholes were 55/270. This means | ||
| mineralisation widths and |
• | If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported. |
the drillholes are close to perpendicular to the mean vein direction, and true widths are close to intercept lengths. This will vary on an individual basis. Where |
|
| intercept | • | If it is not known and only the down hole lengths are | the terrain is challenging the drill pads where moved | |
| lengths | reported, there should be a clear statement to this | along the line and the drill dip was steepened to | ||
| effect (e.g., ‘down hole length, true width not | intersect the drill target at depth. In these | |||
| known’). | circumstances the drill intersection is not | |||
| perpendicular to the geological structures or | ||||
| mineralisation. | ||||
| Diagrams | • | Appropriate maps and sections (with scales) and | • | See Table 1 and Figure 1 and Figure 2 in the main |
| tabulations of intercepts should be included for any | text. | |||
| significant discovery being reported These should | ||||
| include, but not be limited to a plan view of drill hole | ||||
| collar locations and | ||||
| • | appropriate sectional views. | |||
| Balanced | • | Where comprehensive reporting of all Exploration | • | All drill holes assays returned to date from the |
| reporting | Results is not practicable, representative reporting of | current drill programme have been reported. | ||
| both low and high grades and/or widths should be | ||||
| practiced to avoid misleading reporting of Exploration | ||||
| Results. | ||||
| Other | • | Other exploration data, if meaningful and material, | • | A desktop study was completed by Core Metallurgy |
| substantive | should be reported including (but not limited to): | Pty Ltd, using the most recent drill data and | ||
| exploration data | geological observations; geophysical survey results; geochemical survey results; bulk samples – size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock |
flotation test work results to perform an order-of magnitude assessment of processing and operating options for a mine at Mt Flora. The goal of the study |
||
| characteristics; potential deleterious or contaminating | was to produce indicative flowsheets and the | |||
| substances. | associated capital and operating costs to | |||
| subsequently evaluate the feasibility and economic |
Duke Exploration Limited
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| Criteria | JORC Code explanation | JORC Code explanation | Commentary | Commentary |
|---|---|---|---|---|
| viability of producing a copper concentrate via | ||||
| conventional open pit mining and processing | ||||
| methods from deposits in the Bundarra project | ||||
| area. | ||||
| • | The cost estimates provided within the review are of | |||
| a preliminary nature and should have an expected | ||||
| accuracy range of 25% to 45%. Scoping test work to | ||||
| assess metallurgical processing options was | ||||
| conducted by Core in May and June 2019 and these | ||||
| data were used to constrain the review. | ||||
| • | Key assumptions include all mining will be from an | |||
| open-pit, throughput rate will be 500,000 tonnes | ||||
| per annum of sulphide ore, a concentrate grade for | ||||
| copper of 24% and silver of 398 g/t Ag, concentrate | ||||
| filter cake delivered to Mt Isa by road transport and | ||||
| a locally based drive in/out workforce is available at | ||||
| Mackay or in the surrounding area. | ||||
| • | The study considered twelve processing options | |||
| with the Base Case capital cost estimate for the | ||||
| supply and construction of a concentrator with a | ||||
| nominal capacity of 500,000 dry tonnes per annum | ||||
| to produce a saleable rougher copper concentrate is | ||||
| estimated at approximately A$56.3 million. | ||||
| • | Order of magnitude operating costs for a greenfield | |||
| EPCM and second-hand process plant, at A$31-34 | ||||
| per tonne, were significantly lower compared to | ||||
| Builder Owner Operator (A$47-51 per tonne) and | ||||
| Contract Crushing / Direct Shipped Ore (A$65-89 per | ||||
| tonne) options. | ||||
| • | A copper cut-off grade of 0.2% Cu represents the | |||
| economic cut-off grade for the project using the | ||||
| current copper price and cost estimates above. | ||||
| Further work | • | The nature and scale of planned further work (e.g., | • | Further work will include drilling other prospects |
| tests for lateral extensions or depth extensions or | (Quorn) around the Bundarra Pluton to test results | |||
| large-scale step-out drilling). | returned from GAIP, MLEM and 3D IP geophysical | |||
| • | Diagrams clearly highlighting the areas of possible | surveys and pXRF soil surveys. | ||
| extensions, including the main geological | ||||
| interpretations and future drilling areas, provided this | ||||
| information is not commercially sensitive. |
Duke Exploration Limited
www.duke-exploration.com.au