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AUKING MINING LIMITED — Capital/Financing Update 2010
Aug 18, 2010
64355_rns_2010-08-18_bd7ea152-1830-494a-938b-fcf5be65116d.pdf
Capital/Financing Update
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ASX/Media Announcement
19[th ] August 2010
SIGNIFICANT COPPER-COBALT SULPHIDE MINERALISATION INTERSECTED AT THE MOUNT DOROTHY PROSPECT
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Significant copper-cobalt sulphide mineralisation assays returned from the recently completed Mount Dorothy RC drill program, include: MDR002: 35m @ 1.52% copper, 397ppm cobalt from 17m inc. 22m @ 2.03% copper, 591ppm cobalt from 17m
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High grade intersection in MDR002 forms part of a lower grade mixed oxide-sulphide mineralised zone of:
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89m @ 0.74% copper, 190ppm cobalt from 17m
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Additional significant cobalt mineralisation intersected include: MDR002: 7m @ 1,449ppm cobalt, 2.55% copper from 18m MDR003: 10m @ 411ppm cobalt, 0.04% copper from 81m MDR004: 28m @ 385ppm cobalt, 0.12% copper from 35m
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8m @ 315ppm cobalt, 0.02% copper from 122m (OPEN)
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Mineralisation remains open at depth and along strike.
China Yunnan Copper Australia Limited ( ASX: CYU ) today announces the results from its recently completed 586 metre RC drill programme in four holes ( Table 1 ) testing a >500 metre zone of surfical copper mineralisation between the Wee Wyeems and Three Threes prospects (collectively referred to as “ Mount Dorothy ”), part of the Mary Kathleen Joint Venture with Goldsearch Limited ( ASX: GSE ), in the Mt Isa district, Northwest Queensland (Figure 1 and 2).
Traditionally, the Mount Dorothy prospect has been referred to by the names of its two outcropping lodes: 'Three Threes' and ‘Wee Wyeems'. The copper mineralisation occurs in these two outcrops as
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malachite staining on gossans in fault quartz breccias and as disseminations in adjacent sheared porphyry. The mineralisation appears to be controlled by a northwest striking fault.
| Hole ID | *East ** | North* | RL | Azi** | Dip | **Depth ** |
|---|---|---|---|---|---|---|
| **MDR001 ** | 380,720 | 7,694,999 | 449 | 278 | -60 | 193 |
| **MDR002 ** | 380,623 | 7,695,016 | 449 | 119 | -60 | 163 |
| MDR003 | 380,621 | 7,695,021 | 447 | 224 | -60 | 100 |
| **MDR004 ** | 380,293 | 7,695,296 | 429 | 160 | -60 | 130 |
- Datum GDA94 zone 54 ** UTM Grid Azimuth
Table 1: Mount Dorothy Prospect drill collar locations
The mineralised zone, as defined by a >200ppm copper soil geochemical anomaly, was partially tested, concentrating on the Wee Wyeems area by five drill holes in the 1990’s returning a best intercept of 110m @ 0.57% Cu from 22m in drill hole WW201 including 26m @ 1.05% Cu from 106m ( Open at Depth ).
3D interpretation undertaken by CYU suggested that WW201 may have been drilled down dip within a northeast trending mineralised zone. Potential still exists for significant mineralisation to be intersected at depth associated with brecciation extending from Wee Wyeems to Three Threes.
MDR001 and MDR002 were drilled as a pair of scissor holes testing for the potential northeast trending mineralised zone. MDR001 intersected patchy zones of oxide copper mineralisation ( “oxide” ), predominately as native copper and minor malachite, with the best intersections returned of 32m @ 0.18% copper, 44ppm cobalt from 122m and 12m @ 0.19% copper, 301ppm cobalt from 181m ( Open at Depth ). MDR002 intersected a broad zone of oxide and primary sulphide mineralisation ( “primary” ), as pyrite+chalcopyrite+/-chalcocite, of 89m @ 0.74% copper, 190ppm cobalt from 17m. Within this zone two shallow high grade primary sulphide intersections of 22m @ 2.03% copper, 591ppm cobalt from 17m and 6m @ 1.27% copper, 81ppm cobalt from 46m were returned. All mineralisation from 52m to the end of the hole is predominately oxide ( Figure 3 ). MDR003 was drilled on the same drill pad as MDR002 but on an orientation to test the prominent mineralised northwest trending gossanous quartz breccia structure. MDR003 intersected patchy oxide and primary mineralisation with the best intersection of 11m @ 0.30% copper, 116ppm cobalt from 59m (oxide) returned.
MDR004 was drilled to test under the historic shallow underground workings at the Three Threes area. Historically this outcrop has only been tested by a single shallow diamond core hole (DDH1) drilled in the mid 1950’s. MDR004 also intersected patchy primary mineralisation with minor oxide mineralisation. Best intersection returned was 7m @ 0.28% copper, 509ppm cobalt from 56m (primary).
A summary of all significant intersection from this drill program can be found below in Table 2 .
| HOLE ID | FROM(m) | TO(m) | WIDTH(m) | Cu(%) | Co(ppm) | Comment |
|---|---|---|---|---|---|---|
| **MDR001 ** | 35 | 36 | 1.00 | 0.14 | 63 | |
| **MDR001 ** | 43 | 50 | 7.00 | 0.16 | 23 | |
| **MDR001 ** | 54 | 55 | 1.00 | 0.13 | 62 | |
| **MDR001 ** | 61 | 73 | 12.00 | 0.19 | 32 | |
| **MDR001 ** | 79 | 81 | 2.00 | 0.12 | 36 | |
| **MDR001 ** | 87 | 88 | 1.00 | 0.10 | 39 | |
| **MDR001 ** | 107 | 110 | 3.00 | 0.22 | 60 | |
| **MDR001 ** | 114 | 115 | 1.00 | 0.13 | 40 | |
| MDR001 | 122 | 154 | 32.00 | 0.18 | 44 | |
| Including | **137 ** | 138 | 1.00 | **0.87 ** | 35 | 0.50% Coppercutoff |
| **MDR001 ** | 158 | 164 | 6.00 | 0.12 | 57 | |
| **MDR001 ** | **181 ** | 193 | 12.00 | 0.19 | **301 ** | OPEN AT DEPTH |
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| HOLE ID | FROM(m) | TO(m) | WIDTH(m) | Cu(%) | Co(ppm) | Comment |
|---|---|---|---|---|---|---|
| MDR002 | 17 | 106 | 89.00 | 0.74 | 190 | |
| including | 17 | 39 | 35.00 | 1.52 | 397 | |
| including | 17 | 39 | 22.00 | 2.03 | 591 | main sulphide zone |
| Including | 46 | 52 | 6.00 | 1.27 | 81 | 0.50% Copper cutoff |
| **MDR002 ** | 119 | 120 | 1.00 | 0.10 | 16 | |
| **MDR002 ** | 123 | 124 | 1.00 | 0.10 | 9 | |
| **MDR002 ** | 126 | 128 | 2.00 | 0.11 | 26 | |
| **MDR002 ** | 130 | 131 | 1.00 | 0.11 | 21 | |
| **MDR002 ** | 134 | 135 | 1.00 | 0.15 | 24 | |
| MDR002 | 139 | 154 | 15.00 | 0.28 | 32 | |
| Including | 142 | 144 | 2.00 | 0.79 | 77 | 0.50% Copper cutoff |
| MDR003 | 45 | 47 | 2.00 | 0.32 | 232 | |
| MDR003 | 59 | 70 | 11.00 | 0.30 | 116 | |
| MDR003 | 83 | 84 | 1.00 | 0.18 | 1,390 | |
| **MDR004 ** | 44 | 45 | 1.00 | 0.10 | 526 | |
| **MDR004 ** | 48 | 49 | 1.00 | 0.36 | 562 | |
| **MDR004 ** | 52 | 53 | 1.00 | 0.28 | 334 | |
| **MDR004 ** | 56 | 63 | 7.00 | 0.28 | 509 | |
| **MDR004 ** | 69 | 70 | 1.00 | 0.12 | 293 | |
| **MDR004 ** | 79 | 80 | 1.00 | 0.15 | 294 | |
| **MDR004 ** | 83 | 84 | 1.00 | 0.12 | 67 | |
| **MDR004 ** | 96 | 97 | 1.00 | 0.24 | 46 | |
| MDR004 | 111 | 112 | 1.00 | 0.18 | 37 |
Table 2: Summary of significant intersections for Mount Dorothy RC drill program - July 2010, using a nominal 0.10% copper cutoff w/- max 3m internal dilution. All depths are reported in downhole depths.
Significant broad anomalous cobalt intersections were also returned from assays in all four holes with a peak value of 2,100ppm cobalt. MDR002 returned the best intersection of 19m @ 674ppm cobalt, 2.31% copper from 17m including 7m @ 1,449ppm cobalt, and 2.55% copper from 18m, at a 500ppm cobalt cut-off. MDR003 and MDR004 returned the two broadest intersections of 34m @ 214ppm cobalt, 0.09% copper from 62m and 52m @ 278ppm cobalt, 0.08% copper from 28m respectively. MDR004 remains open with 8m @ 315ppm cobalt, 0.02% copper from 122m ( Open at depth ) with the last sample returning 857ppm cobalt and 0.03% copper.
A summary of all significant intersection from this drill program can be found below in Table 3 .
| FROM (m) |
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|---|---|---|---|---|---|---|
| HOLE ID | TO (m) | WIDTH (m) | Co (ppm) | Cu (%) | Comment | |
| **MDR001 ** | 56 | 57 | 1.00 | 106 | 0.09 | |
| **MDR001 ** | 83 | 84 | 1.00 | 103 | 0.09 | |
| **MDR001 ** | 90 | 91 | 1.00 | 128 | 0.08 | |
| **MDR001 ** | 109 | 112 | 3.00 | 101 | 0.11 | |
| **MDR001 ** | 153 | 155 | 2.00 | 105 | 0.10 | |
| **MDR001 ** | 157 | 158 | 1.00 | 113 | 0.07 | |
| MDR001 | 166 | 193 | 27.00 | 223 | 0.09 | OPEN AT DEPTH |
| Including | 187 | 188 | 1.00 | 1,600 | 0.93 | |
| MDR002 | 17 | 36 | 19.00 | 674 | 2.31 | |
| including | 18 | 25 | 7.00 | 1,449 | 2.55 | 500ppmCo cutoff |
| **MDR002 ** | 55 | 56 | 1.00 | 110 | 0.28 | |
| **MDR002 ** | 71 | 72 | 1.00 | 110 | 0.09 | |
| MDR002 | 111 | 113 | 2.00 | 113 | 0.08 | |
| MDR003 | 6 | 7 | 1.00 | 106 | 0.05 | |
| MDR003 | 15 | 22 | 7.00 | 136 | 0.02 | |
| MDR003 | 27 | 56 | 29.00 | 185 | 0.05 | |
| including | **32 ** | 48 | 16.00 | **262 ** | 0.06 | 200ppmCo cutoff |
| MDR003 | 62 | 96 | 34.00 | 214 | 0.09 | |
| including | 81 | 91 | 10.00 | 411 | 0.04 | 200ppm Co cutoff |
| including | 82 | 84 | 2.00 | 1,166 | 0.13 | 500ppm Co cutoff |
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| HOLE ID | FROM (m) | TO (m) | WIDTH(m) | Co (ppm) | Cu (%) | Comment |
|---|---|---|---|---|---|---|
| **MDR004 ** | 1 | 4 | 3.00 | 110 | 0.01 | |
| MDR004 | 28 | 80 | 52.00 | 278 | 0.08 | |
| including | 35 | 63 | 28.00 | 385 | 0.12 | 200ppmCo cutoff |
| MDR004 | 122 | 130 | 8.00 | 315 | 0.02 | OPEN AT DEPTH |
| including | 126 | 130 | 4.00 | 512 | 0.02 | 200ppm Co cutoff |
| including | 129 | 130 | 1.00 | 857 | 0.03 | 500ppm Co cutoff |
Table 3: Summary of significant cobalt intersections for the Mount Dorothy RC drill program - July 2010, using a nominal 100ppm cobalt cutoff w/- max 3m internal dilution. All depths are reported in downhole depths.
CYU is currently compiling all the new drill data into the existing 3D model for re-interpretation and planning of a second phase of drilling, targeting depth and strike potential along the Mount Dorothy northwest and northeast structures. A number of untested Sirotem anomalies identified during a 1990’s ground geophysical survey will also be re-evaluated for drill targeting.
Competent Person’s Statement
The information in this report that relates to the Mount Dorothy prospect (EPM 14019) is based on information compiled by Richard Hatcher, who is a Member of the Australian Institute of Geologists and is Exploration Manager of China Yunnan Copper Australia Ltd. Mr Hatcher has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking to qualify as a Competent Person as defined in the 2004 Edition of the "Australasian Code for Reporting of Exploration Results and Mineral Resources". Mr Hatcher consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
About CYU
CYU is an Australian company formed to explore for and develop minerals in Australia and overseas. Cornerstone investor, Yunnan Copper Industry (Group) Co Ltd (YCI), is one of China’s largest copper producers. YCI’s largest shareholder is Chinalco.
CYU has goals of resource definition and development for its three target commodities copper, gold and uranium and to achieve this is targeting high quality copper, gold and uranium projects in the Cordillera Porphyry Belt of Chile, Mt Isa Inlier, and Pentland Province in Queensland.
Other current CYU activities include;
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Data compilation and drillhole targeting from recently completed ground geophysical, geochemical and mapping programs at the Humito Copper Porphyry project in Chile.
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Data compilation and three dimensional model of recently completed diamond drilling at Stanley’s Hope Gold, Pentland.
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Compilation of follow up mapping and Niton XRF sampling on the Rare Earth Element Uranium project at Elaine Dorothy.
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Project review under a Memorandum of Understanding with CYU’s cornerstone investor Yunnan Copper Industries (YCI) to undertake regional exploration and project generation work in Yunnan Province and Laos, China.
For further information please contact;
Mr Jason Beckton Managing Director CYU 0438 888 612
Richard Hatcher Exploration Manager CYU 0400 720 792
or visit the website, www.cycal.com.au
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Figure 1: Mt Dorothy is located 50 kilometres southeast of Mount Isa.
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Figure 2: Mary Kathleen JV: EPM 14019 – Drillhole Location Map with interpreted > 500m surfical mineralised zones.
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Figure 3: Mary Kathleen JV: EPM 14019 – Section A-A’ looking north-northeast highlighting the broad copper mineralisation intersected in MDR001 and MDR002.
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Plate 1: Mary Kathleen JV: EPM 14019 –RC Drill Rig drilling MRD001, looking south. Outcrop in the
background is the surface expression of gossanous quartz breccia outcrop extending for >500m strike length.
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Plate 2: Mary Kathleen JV: EPM 14019 – MDR002 shallow visible primary sulphide mineralisation in RC drill chips. The interval 20m – 25m returned assays of 5m @ 3.15% copper, 1,473ppm cobalt .
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Plate 3: Mary Kathleen JV: EPM 14019 –Three Threes Outcrop. Massive malachite staining on gossanous quartz breccia outcrop. Reconnaissance Niton XRF readings at this outcrop in Sept 2009 returned readings up to 6.44% copper and 12,398ppm cobalt .
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