el 29029 second annual report - geoscience.nt.gov.au · 3 summary. exploration title el29029 was...
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Darwin Mining & Exploration Pty Ltd A.C.N. 151 529 145
38 Turnmill St, Macgregor, QLD 4109, Australia Tel: +61 2 91917587 Fax: +61 2 49575502 Email: [email protected]
EL 29029
SECOND ANNUAL REPORT
FOR THE PERIOD
6 June 2013 to 5 June 2014
By Company Geologists
Dr Zhiyu Jiang
June 26 2014
Copyright
Darwin Mining & Exploration Pty Ltd owns the copyright of all the annual report. The document has been written for submission to the Northern Territory Department of Mines and Energy in accordance with the Mineral Titles Act (NT). Darwin Mining & Exploration Pty Ltd authorise the department to copy and distribute the report and associated data.
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TABLE OF CONTENT Summary…………………………………………………………………………..…3
Introduction……………………………………………………………………….….4
Tenure Details……………………………………………………………………….4
Geological Setting ..……………………………………………………………...…5
Reconnaissance and Mineralisation in the Tenement of EL29029 ................................……….……………............………5
Work Planned ………………………………………………………………..….…8
References........................................................................................................9
Appendix I Handheld XRF analysis results of the samples from Mt Irene expecting area.
Appendix II Re-analysed XRF analysis results of the samples from Mt Irene expecting area.
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Summary Exploration title EL29029 was granted to Darwin Mining & Exploration PTY LTD on 6 June 2012. During the last twelve months, geological reconnaissance has been carried out in October and early November. Two local people had been organised to join us for the geochemical sampling using their vehicals or motorcycles because our hired vehicle was not suitable to drive into the bush. Unfortunately, the local people were not available when we first arrived in the field in October 2013. For this reason, we had to change our schedule. Three weeks later when we returned, the locals had had an accident and could not go with us. A short geological reconnaissance was undertaken by us. We failed to access Clark Cu1-3 old mining area with our hired vehicle and did not find the old Ringer mine. Twelve rock chip samples were taken from the Mt Irene old pit area by us on foot. It was slow and ineffective. We had to give it up and plan the sampling for next year.
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Introduction
Exploration Licence EL29029 was granted to DARWIN MINING & EXPLORATION PTY LTD by NT State DEPARTMENT OF MINES AND ENERGY on 6 June 2012 for a period of six years. This report summarises work carried out on EL29029 during the period 6 June 2013 to 5 June 2014.
Tenure details
EL29029, total of 127 units (Table 1), is located northwest of Alice Springs in distance of approximately 328km, accessing by Tanami Road and local 4WD tracks (Fig. 1).
-2 1 o5 5
-2 2 o0 0
SF5 2 17 17 H, J, K, N, O , P, R, S, T, U, W, X, Y, Z SF5 2 17 18 F, L , Q, V SF5 2 17 89 B, C, D, E, G , H, J , K, M , N, O , P, R, S, T, U SF5 2 17 90 A, B , C, D, E, F, G, H, J, K, L, M, N, O, P, Q , R, S, T, U SF5 2 17 91 AL L SF5 2 17 92 A, F, G, H, J, L , M , N, O , Q, R, S, T, U, V, W, X, Y, Z SF5 2 17 93 Q , V SF5 2 18 63 A, B , C, D, E, F, G, H, J, L, M , N, O , Q, R, S, T SF5 2 18 64 A, B , C, D, E, G , H, J SF5 2 18 65 A, F
-2 2 o0 5
EL29029 487 1
-2 2 o1 0 1 3 1o 00
1 3 1o 05
1 3 1o 10
1 3 1o 15
1 3 1o 20
13 1o 25
Figure 1 EL29029 Location Diagram
Table 1 EL29029 unite BLOCK NO UNITS SF52 1717 H, J, K, N, O, P, R, S, T, U, W, X, Y, Z SF52 1718 F, L, Q, V SF52 1789 B, C, D, E, G, H, J, K, M, N, O, P, R, S, T, U SF52 1790 A, B, C, D, E, F, G, H, J, K, L, M, N, O, P, Q, R, S, T, U SF52 1791 ALL SF52 1792 A, F, G, H, J, L, M, N, O, Q, R, S, T, U, V, W, X, Y, Z SF52 1793 Q, V SF52 1863 A, B, C, D, E, F, G, H, J, L, M, N, O, Q, R, S, T SF52 1864 A, B, C, D, E, G, H, J SF52 1865 A, F
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Geological Setting Geologically EL29029 sets at Mount Doreen Mineral Field in the Arunta Region of the Aileron Province. The major rock types include Mesoproterozoic-Paleoproterozoic variably metamorphosed clastic sediments, meta volcanic rock, calc-silicate rocks, dolerite, mafic rock and intrusion granite. Minerals hosted by the rocks include metamorphosed VMS and carbonate replacement Pb-Zn-Cu, iron- oxide Cu-Au, orogenic Au, W(-Mo), Sn, mafic-hosted Ni-Cu, vermiculite, hydropthermal U, and apatite- and pegmatite-hosted REE-U(-P). Major explorations in the region target for base metals, Ni-Cu, uranium, mafic-hosted vanadiferous magnetite, REE and orogenic gold. Unfortunately, still large areas remain significantly under-explored.
Reconnaissance and Mineralisation in the tenement of EL29029
Mineralisation occurring in the tenement of EL29029 and adjacent area includes tungsten at Mount Doreen mine, base metal (Cu-Pb-Zn-Ag) at Silver King mine, Tungsten at Ringer mine, base metal (Cu-Pb-Zn-Ag) at Mount Irene mine and Clark Cu No’s 1,2 &3 mines (Fig. 2).
Cl a rk Cu 1, 2 , 3
Mo u nt Ir e ne Ri n g er
Mo u n t Do re e n
Si l ve r K i ng
Fig. 2 Mineralisation in the tenement of EL29029 and adjacent area. It had been planned to take geochemical samples systematically at the eastern Silver King mine area along the northern wing of the big fault where there is an uranium anomaly (Fig. 3) and high contents of uranium in the rock chip samples taken by Rio Tinto Ltd in 1998 (Fig. 4).
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UU
SSSiillvvveee rr KKKiinnn ggg
UUU mmmiinnneee
UU aannoommaall yy
Fig. 3 Relationship of Silver King Mine, major W-E fault and uranium anomaly.
EL29029
Silver King
330p p m
4 6 0p p m 2550p pm
EL29 980
Fig. 4 Uranium contents of the rock chips samples taken by Rio Tinto Ltd in 1998 near the Silver King Mine and the major fault.
Unfortunately the local’s we organised had to travel away for a funeral when we arrived to the field in October 2013. When we returned three weeks later, the local’s had an accident and were not able to do the sampling for us.
In this case we carried out the geological reconnaissance ourselves on the western mineral occurrences; Ringer W mine, Mount Irene and Clark Cu 1,2 &3 base metal mines which we failed to access by our hire vehicle previously. Due to the local’s not being available, we had to use the hire vehicle again. Like before, the vehicle could not be driven in the bush and we had to walk several kilometers to the sites each day. We failed to access Clark Cu No’s 1, 2, & 3 mines and the Ringer W mine. The Ringer W mine area is all flat and the old mine pit could have been refilled as the mine has been closed for decades. Only the Mount Irene old mining area was visited during the reconnaissance. A shallow old open pit can be seen (Fig. 5).
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Fig. 5 old open pit at Mt Irene.
Some abandoned ore had been found several metres away. Most of the ore are iron rich, like gossan sample, with some malachite (Fig. 6).
Fig. 6 Ore samples from Mt Irene
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Fig. 7 Locations of the samples from Mt Irene mine.
Generally the ore bodies are present in small size stockwork or small veins which are controlled by a shear zone. Twelve samples have been taken from the old open pit and near the area. The results are listed in the Table 2.
Table 2 XRF Analysis results of the samples from Mt Irene mine area (please see Appendix I for detail)
ID Easting Northing Au P S Mn Fe Co Cu Zn As Ag Sn Pb Bi U
1
718221 7562497 <LOD
<LOD
<LOD
339
1178114
1019
8476
349
280
<LOD
313
<LOD
101
93
2
718220 7562498 <LOD
<LOD
<LOD
304
1632491
1937
11306
421
481
<LOD
994
<LOD
362
110
3
718219 7562499 <LOD
<LOD
<LOD
817
1252256
1203
5943
347
320
<LOD
440
<LOD
<LOD
104
4
718218 7562500 <LOD
<LOD
<LOD
202
1483284
1617
8662
429
366
<LOD
638
<LOD
144
163
5
718217 7562501 <LOD
<LOD
<LOD
138
1836294
2258
10266
390
561
<LOD
444
<LOD
163
127
6
718104 7562515 76
15298
4954
277
51016
<LOD
504174
3770
<LOD
<LOD
158
655
195
<LOD
7
718104 7562515 79
26010
10675
572
55576
25
721937
3754
150
<LOD
224
1067
<LOD
<LOD
8
718104 7562515 18
6424
3693
141
72063
15
157849
1457
<LOD
<LOD
87
269
131
<LOD
9
718104 7562515 84
33614
13275
593
22325
24
840048
4051
<LOD
<LOD
<LOD
1216
246
<LOD
10
718106 7562517 <LOD
6760
2791
319
93211
13
111345
1393
<LOD
<LOD
116
767
102
<LOD
11
718106 7562517 <LOD
6193
2703
109
114027
22
209255
2139
<LOD
20
102
505
215
<LOD
12 718106 7562517
29
10226
5654
183
108819
35
300979
1600
<LOD
23 69
592
<LOD
<LOD
Two of the twelve samples have been re-analysed by XRF and the results are listed in Table 3. It has been confirmed that these samples contain gold with copper, but not significant lead and zinc.
Table 3 Analysis results of two samples from the twelve samples from Mt Irene area (please see Appendix II for details)
Sample ID Easting Northing Cu(%) Pb(%) Zn(%) W(ppm) Sn(ppm) V(ppm) Nb(ppm) Ta(ppm) Th(ppm) U(ppm) REO(ppm) Au(ppm)
AJ-29029-1 718220 7562498 21.02 0.14 0.23 2.1 300 5.5 0.29 0.91 0.20 12.1 8.65 0.22
AJ-29029-2 718217 7562501 1.39 0.0017 0.062 2.4 126 10.2 0.81 2.40 0.47 156 73.66 0.20
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During the field investigation, geologists had to walk on foot for several kilometres to the mining sites without the help of the local people. It took so long for the field investigation and the program was ineffective on foot. Eventually, Darwin Mining and Exploration P/L geologists run out of time in the NT and had to give up the further investigation and leave all the work for next year with help from the local people.
Work Planned
1. Geological survey and sampling in the Ringer tungsten mine and Clark Cu 1,
2 & 3 base metal mines which we failed to find and access; 2. Geochemical and geophysical methods will be used to target subsurface
structures, unexposed granite and associated mineralisation if the initial reconnaissances in the area returns interesting results;
3. Ground investigation of the major E-W fault and its secondary shears at south of the Silver King Mine. Rock chip and soil geochemical sampling will be carried out.
4. Testing the anomalies targeted by geological, geophysical and geochemical surveys by drilling.
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References Claoué-Long, J., 2003. Event chronology in the Arunta region. In Annual Geoscience Exploration Seminar (AGES) 2003. Record of Abstracts. Munson, T.J., and Scrimgeour, I. (editors). Northern Territory Geological Survey, Record 2003- 0001.
Claoué-Long, J., Fraser, G., Huston, D., Neumann, N., and Worden, K., 2005, Towards a correlation of the earliest Proterozoic evolution in central Australia. In Annual Geoscience Exploration Seminar (AGES) 2005. Record of Abstracts. Munson, T.J., and Scrimgeour, I. (editors). Northern Territory Geological Survey, Record 2005-001.
Cross, A.J., Fletcher, Crispe, A.J., Huston, D.L., and Williams, N., 2005. New constraints on the timing of deposition and mineralisation in the Tanami Group. In Annual Geoscience Exploration Seminar (AGES) 2005. Record of Abstracts. Munson, T.J., and Scrimgeour, I. (editors). Northern Territory Geological Survey, Record 2005-001, 44-45.
Cutovinos, A., Kruse, P.D., Abbott, S.T., Beier, P.R., and Dunster, J.N., 2002. Limbunya, Northern Territory, sheet SE 52-07. Northern Territory Geological Survey 1:250 000 Geological Series.
Etheridge, M.A., Rutland, R.W.R., and Wyborn, L.A.I., 1987. Orogenesis and tectonic process in early to middle Proterozoic of Northern Australia. Geodynamic Series, 17, 131-147.
Fraser, G., 2002. Geochronology of Tanami ores and host rocks. In Annual Geoscience Exploration Seminar (AGES) 2002. Record of Abstracts. Munson, T.J., and Scrimgeour, I. (editors). Northern Territory Geological Survey Record 2002/0003.
Hussey, K.J., Huston, D.L., and Claoué-Long JC, 2005. Geology and origin of some Cu-Pb- Zn (Au-Ag) deposits in the Strangways Metamorphic Complex, Arunta region Northern Territory. Northern Territory Geological Survey, Report 17.
Huston, D.L., Hussey, K.J., Clauoe-Long, J., and Wygralak, A.S., 2003. Lead isotope constaints on the ages and metal sources of lode gold and base metal deposits from the Tanami Warumpi and southeast Arunta Provinces. In Annual Geoscience Exploration Seminar (AGES) 2003. Record of Abstracts. Munson, T.J., and Scrimgeour, I. (editors). Northern Territory Geological Survey, Record 2003- 001.10
Marshall, T., and Dunster, J., 2004. New advances in the Amadeus Basin. In Annual Geoscience Exploration Seminar (AGES) 2004. Record of Abstracts. Munson, T.J., and Scrimgeour, I. (editors). Northern Territory Geological Survey, Record 2004- 0001.
Page, R., Sun, S.-S., Blake, D., 1995. Geochronology of an exposed late Archæ an basement terrane in The Granites-Tanami region. AGSO Research Newsletter, 22, 19-20.
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Scrimgeouer, I., 2003. Developing a revised framework for the Arunta region. In Annual Geoscience Exploration Seminar (AGES) 2003. Record of abstracts. Munson, T.J., and Scrimgeour, I. (editors). Northern Territory Geological Survey, Record 2003-001.
Scrimgeour, I.R., Kinny, P.D., Close, D.F., and Edgoose, C.J., 2005. High-T granulites and polymetamorphism in the southern Arunta region, central Australia: evidence for a 1.64 Ga accretional event. Precambrian Research, 142, 1-27.
Shaw, R.D., Wellman, P., Gunn, P., Whitaker, A.J., Tarloski, C., and Morse, M., 1995. 'Australian crustal elements' map. AGSO Research Newsletter, 23, 1-3.
Vandenberg, L.C., Hendrickx, M.H., and Crispe, A.J., 2001. Structural geology of the Tanami region. Northern Territory Geological Survey Record 2001-004. Warren, R.G., and Shaw, R.D., 1985. Volcanogenic Cu-Pb-Zn bodies in granulites of the central Arunta Block, central Australia. Journal of Metamorphic Geology, 3, 481-499.
Wyborn, L., Hazell, M., Page, R., Idnurm, M., and Sun, S., 1998. A newly discovered major Proterozoic granite-alteration system in the Mount Webb region, central Australia, and implications for Cu-Au mineralisation. AGSO Research Newsletter, 28, 1-6.11