Golden Cross Resources Ltd, through its wholly owned subsidiaries Golden Cross Operations Pty Ltd (GCO) and Challenger Gold Li
ASX Announcement
11 December 2014
GOLDEN CROSS RESOURCES LTD
ABN 65 063 075 178
22 Edgeworth David Ave
Hornsby NSW 2077
Phone (02) 9472 3500
Fax (02) 9482 8488
Copper Hill Drilling Update - GCHD474 & Program Summary
GCHD474: Assays have been returned delivering encouraging results over a substantial interval of 178 metres at 0.48% copper and 0.93g/t gold with a best, higher grade zone of 40 metres grading 0.81% copper and 2.04g/t gold.
Highlights of the Central Copper Hill core drilling program now include:
o GCHD470: 55 metres at 1.8% copper and 5.7g/t gold
with a bonanza zone of 12 metres at 3.1% copper and 12.0g/t gold
o GCHD471: 65 metres at 0.58% copper and 0.44 g/t gold including 9 metres at 1.2% copper and 1.13 g/t Au
o GCHD472: well-mineralised intervals, best of 50 metres at 0.56% copper and 0.83g/t gold within a broad zone of 426 metres grading 0.39% copper and 0.39g/t gold
o GCHD473: 58 metres at 0.64% copper and 0.68g/t gold
GCHD474 PQ and HQ core sample assays have been returned from the ALS laboratory in Orange. Intervals, using a range of copper cut-off grades, are set out below. Assay results and sample details are tabulated in full further in this report.
GCHD474 using 0.4% copper cut-off grade:
Containing maximum 4 consecutive metres at
|
From (m)
|
To (m)
|
Interval (m)
|
Copper %
|
Gold g/t (ppm)
|
|
114
|
136
|
22
|
0.49
|
0.50
|
|
142
|
182
|
40
|
0.81
|
2.04
|
|
198
|
208
|
10
|
0.47
|
1.40
|
|
218
|
246
|
28
|
0.71
|
1.45
|
|
254
|
258
|
4
|
0.42
|
0.29
|
|
334
|
351.6
|
17.6
|
0.45
|
0.27
|
GCHD474 using 0.2% copper cut-off grade:
Containing maximum 8 consecutive metres at
|
From (m)
|
To (m)
|
Interval (m)
|
Copper %
|
Gold g/t (ppm)
|
|
20
|
36
|
16
|
0.21
|
0.59
|
|
92
|
270
|
178
|
0.48
|
0.93
|
|
314
|
351.6
|
37.6
|
0.38
|
0.19
|
1
Structural observations of veins in the high grade central zone support the interpretation that GCHD474 has cut across a north plunging zone of higher grade mineralisation that was intersected in previous drill holes with north-south orientations. Holes drilled to the north drilled down the plunge of the zone, and those drilled to the south drilled through the zone, close to perpendicular. This 'north plunging interpretation' provides a potential vector to deeper, high grade targets and possible mineralisation sources. If this orientation is supported elsewhere at Copper Hill there are implications for refining the resource model, and for further drilling. An example is the target zone defined beneath GCHR109 between Central Copper Hill and Buckley's Hill to the north.
Cross-section 5300N
showing previous drill hole traces with mineralised intervals and GCHD474 showing intervals and grades on a background of geology and 0.4% and 0.2% copper cut-off grade resource blocks
from the 2011 Copper Hill Resource Estimate.
2
Central Copper Hill drilling program showing drill hole traces and schematic structural elements including an interpreted dilational zone hosting higher grade mineralisation.
The current program has further tested mineralised zones defined by historic drill-holes and has refined the Copper Hill geology model. The updated geology model will provide more precisely defined constraints for the planned mineral resource estimation and has supported compliance with the JORC Code, 2012 Edition.
Tenders have been called for the preparation of an updated resource estimate for Copper Hill. Preliminary financial modelling will then be run using various mine and mill throughput rates to determine potential viability.
Photo of GCHD474 core at 155 metres down-hole.
Quartz and chalcopyrite + pyrite veining in crowded tonalite porphyry.
3
GCHD474 Assay Results
Showing sample weights, QA/QC samples and intercepts, using a range of Cu cut-off grades
GCHD474 Au-AA26 ME-MS61
Cu% Cutoff INTERCEPT
0.2 0.3 0.4
-MS61 -MS61 E-MS61 -MS61
Hole ID From
(m)
To
(m) Lgth
Sample
ID
Wt
(kg)
Bit
Size
Sample
type
QA
QC Comment
4m
Comp
Au QA
ppm QC
Cu
ppm
QA % % %
QC
Metres @ Cu% Au g/t
Ag
ppm
Mo
ppm
Re
ppm S%
GCHD474 0 1 1 A34746 0.6 PQ HCORERUB U GCHD474 1 2 1 A34747 4.7 PQ HCORERUB U GCHD474 2 3 1 A34748 5.6 PQ HCORERUB U GCHD474 3 4 1 A34749 4.2 PQ HCORERUB U
C32564
8m 4m 4m
GCHD474 4 5 1 A34750 4 PQ HCORERUB U 0.02 687 1.3 5 0.004 0.07
GCHD474 5 6 1 A34751 4.6 PQ HCORERUB U GCHD474 6 7 1 A34752 4.4 PQ HCORERUB U GCHD474 7 8 1 A34753 4.6 PQ HCORERUB U
C32565
GCHD474 8 9 1 A34754 4.2 PQ HCORERUB U 0.14 491 1.4 5 0.004 0.07
GCHD474 9 10 1 A34755 4.6 PQ HCORERUB U GCHD474 10 11 1 A34756 4.8 PQ HCORERUB U GCHD474 11 12 1 A34757 5 PQ HCORERUB U
C32566
GCHD474 12 13 1 A34758 3.9 PQ HCORERUB U 0.35 886 1.1 8 0.005 0.08
GCHD474 13 14 1 A34759 4.3 PQ HCORERUB U GCHD474 14 15 1 A34760 4.1 PQ HCORERUB U GCHD474 15 16 1 A34761 4.3 PQ HCORERUB U
C32567
GCHD474 16 17 1 A34762 4.8 PQ HCORERUB U 0.7 11 0.011 0.05
GCHD474 17 18 1 A34763 5.1 PQ HCORERUB U GCHD474 18 19 1 A34764 5.1 PQ HCORERUB U
C32568
0.86 1320
GCHD474 19 20 1 A34765 5.5 PQ HCORERUB U Coppe r l e a che d out of uppe r oxi di s e d zone
GCHD474 PULP STD CHMG_01 C32569
GCHD474 20 21 1 A34766 5.3 PQ HCORERUB U 3.0 3 0.004 0.02
GCHD474 21 22 1 A34767 6.4 PQ HCORERUB U GCHD474 22 23 1 A34768 6 PQ HCORERUB U GCHD474 23 24 1 A34769 6.8 PQ HCORERUB U
C32570
1.32 2680
GCHD474 24 25 1 A34770 7.4 PQ HCORERUB U 1.8 4 0.005 0.16
GCHD474 25 26 1 A34771 6.8 PQ HCORERUB U GCHD474 26 27 1 A34772 7.5 PQ HCORERUB U GCHD474 27 28 1 A34773 6.6 PQ HCORERUB U
C32571
0.56
1515
GCHD474 28 29 1 A34774 6.8 PQ HCORERUB U 0.5 4 0.007 0.11
GCHD474 29 30 1 A34775 6.6 PQ HCORERUB U GCHD474 30 31 1 A34776 6.8 PQ HCORERUB U GCHD474 31 32 1 A34777 6 PQ HCORERUB U
C32572
0.07
1115
GCHD474 32 33 1 A34778 7.2 PQ HCORERUB U 1.7 5 0.015 0.36
GCHD474 33 34 1 A34779 7.2 PQ HCORERUB U GCHD474 34 35 1 A34780 5.5 PQ HCORERUB U GCHD474 35 36 1 A34781 7.2 PQ HCORERUB U GCHD474 36 38 2 A34782 8.2 HQ HCORE U GCHD474 38 40 2 A34783 6.9 HQ HCORE U
C32573
C32574
0.40
2950
GCHD474 36 40 4 CRUSH DUP C32574R
GCHD474 40 42 2 A34784 7.2 HQ HCORE U GCHD474 42 44 2 A34785 7.4 HQ HCORE U GCHD474 44 46 2 A34786 7.6 HQ HCORE U GCHD474 46 48 2 A34787 7.6 HQ HCORE U GCHD474 48 50 2 A34788 7.2 HQ HCORE U GCHD474 50 52 2 A34789 7.9 HQ HCORE U GCHD474 52 54 2 A34790 8 HQ HCORE U GCHD474 54 56 2 A34791 8.3 HQ HCORE U GCHD474 56 58 2 A34792 7.3 HQ HCORE U GCHD474 58 60 2 A34793 7 HQ HCORE U GCHD474 60 62 2 A34794 7.5 HQ HCORE U GCHD474 62 64 2 A34795 8.3 HQ HCORE U GCHD474 64 66 2 A34796 7.5 HQ HCORE U GCHD474 66 68 2 A34797 7.2 HQ HCORE U GCHD474 68 70 2 A34798 7.2 HQ HCORE U GCHD474 70 72 2 A34799 7.3 HQ HCORE U GCHD474 72 74 2 A34800 7 HQ HCORE U GCHD474 74 76 2 A34801 7.1 HQ HCORE U GCHD474 76 78 2 A34802 7.2 HQ HCORE U GCHD474 78 80 2 A34803 7.3 HQ HCORE U GCHD474 80 82 2 A34804 7.7 HQ HCORE U GCHD474 82 84 2 A34805 7.9 HQ HCORE U GCHD474 84 86 2 A34806 7 HQ HCORE U GCHD474 86 88 2 A34807 6.8 HQ HCORE U GCHD474 88 90 2 A34808 7.1 HQ HCORE U GCHD474 90 92 2 A34809 6.9 HQ HCORE U GCHD474 92 94 2 A34810 7.6 HQ HCORE U GCHD474 94 96 2 A34811 7.5 HQ HCORE U GCHD474 96 98 2 A34812 7.1 HQ HCORE U
GCHD474 98 100 2 A34813 8.3 HQ HCORE U End B1
GCHD474 100 102 2 A34814 8 HQ HCORE U Sta rt B2
GCHD474 102 104 2 A34815 6.5 HQ HCORE U GCHD474 104 106 2 A34816 7.2 HQ HCORE U GCHD474 106 108 2 A34817 7.8 HQ HCORE U GCHD474 108 110 2 A34818 6.4 HQ HCORE U
C32575
C32576
C32577
C32578
C32579
C32580
C32581
C32582
C32583
C32584
C32585
C32586
C32587
C32588
C32589
4
GCHD474 Au -AA26 ME-MS61
Cu % Cu toff INTERCEPT
0.2 0.3 0.4
-MS61 -MS61 E-MS61
Hole ID
From To
Lgth
Sample Wt
Bit
Sample
QA 4m
Comments
Au QA
Cu
QA % % %
Au
Metres @ Cu%
Ag Mo Re
(m)
(m)
ID (kg)
Size
type QC
Comp
ppm QC
ppm
QC 8m 4m 4m
g/t
ppm
ppm
ppm
GCHD474 110 112 2 A34819 7 HQ HCORE U 0.16 2250 0.9 1 0.003 1.60
GCHD474 112 114 2 A34820 7.8 HQ HCORE U 0.11 1530 0.7 1 0.004 0.81
GCHD474 114 116 2 A34821 6.8 HQ HCORE U 0.28 4990 2.4 2 0.005 2.39
GCHD474 A34822 PULP STD CHMG_01 0.31 2590 1.5 8 0.058 2.57
GCHD474 116 118 2 A34823 7 HQ HCORE U 0.20 2280 1.1 1 0.006 1.87
GCHD474 118 120 2 A34824 7 HQ HCORE U 0.28 5110 1.7 1 0.003 1.70
GCHD474 120 122 2 A34825 7.2 HQ HCORE U 0.38 3630 1.5 2 0.004 1.85
GCHD474 122 124 2 A34826 7.5 HQ HCORE U 0.28 3770 1.3 1 0.005 1.52
GCHD474 124 126 2 A34827 7 HQ HCORE U 0.42 6680 3.3 2 0.004 2.20
GCHD474 126 128 2 A34828 7.2 HQ HCORE U 0.74 6780 3.9 4 0.004 2.98
GCHD474 128 130 2 A34829 7.3 HQ HCORE U 0.55 5580 2.5 4 0.010 3.21
GCHD474 130 132 2 A34830 7.6 HQ HCORE U 0.43 3380 2.0 2 0.004 3.09
GCHD474 132 134 2 A34831 6.6 HQ HCORE U 0.35 3810 3.0 5 0.012 5.12
GCHD474 134 136 2 A34832 6.8 HQ HCORE U 1.54 8030 22m @ 0.49% 0.50 4.2 6 0.015 2.04
GCHD474 134 136 A34832R CRUSH DUP 1.56 8040 3.6 7 0.015 2.09
GCHD474 136 138 2 A34833 7.1 HQ HCORE U 0.49 3470 1.6 1 0.006 1.00
GCHD474 138 140 2 A34834 7.8 HQ HCORE U 0.18 1860 0.7 1 0.006 0.76
GCHD474 140 142 2 A34835 8 HQ HCORE U 0.21 1890 0.6 1 0.007 0.81
GCHD474 142 144 2 A34836 7.1 HQ HCORE U 1.01118504.4 2 0.003 2.46
GCHD474 144 146 2 A34837 7.1 HQ HCORE U 1.80123003.7 2 0.002 2.18
GCHD474 A34838 PULP STD CHHG_01 2.42 9160 3.6 2 0.008 1.47
GCHD474 146 148 2 A34839 7.6 HQ HCORE U 0.58 4080 1.4 1 0.004 0.80
GCHD474 148 150 2 A34840 7.4 HQ HCORE U 1.41 7770 2.5 2 0.005 1.13
GCHD474 150 152 2 A34841 7 HQ HCORE U 0.90 3610 1.6 2 0.004 0.38
GCHD474 152 154 2 A34842 7.1 HQ HCORE U 1.41 6360 1.9 2 0.004 0.74
GCHD474 154 156 2 A34843 6.8 HQ HCORE U 1.19 5410 2.4 2 0.003 0.54
GCHD474 156 158 2 A34844 6.1 HQ HCORE U 0.86 4080 1.0 1 0.003 0.43
GCHD474 158 160 2 A34845 7.4 HQ HCORE U 3.49136003.5 1 0.002 1.43
GCHD474 160 162 2 A34846 6.6 HQ HCORE U 3.09109502.4 1 0.002 1.12
GCHD474 162 164 2 A34847 8.1 HQ HCORE U 4.38141005.4 2 0.002 1.43
GCHD474 164 166 2 A34848 7.1 HQ HCORE U 1.91 7770
Hi gh Gra d e Zon e
2.2 1
GCHD474 166 168 2 A34849 7 HQ HCORE U 4.58127505.2 2 0.002 1.18
GCHD474 168 170 2 A34850 7.2 HQ HCORE U 2.66105003.8 2 0.002 1.15
GCHD474 170 172 2 A34851 8.4 HQ HCORE U 2.82 9050 3.1 1 1.04
GCHD474 172 174 2 A34852 7.1 HQ HCORE U 4.33 12550 16m @ 1.14% 3.41 4.9 2 0.002 2.03
GCHD474 172 174 A34852R CRUSH DUP 4.09 12550 5.4 2 0.002 2.02
GCHD474 174 176 2 A34853 7 HQ HCORE U 0.62 2530 1.1 2 0.002 1.26
GCHD474 176 178 2 A34854 6.7 HQ HCORE U 1.02 4320 1.5 1 0.003 0.87
GCHD474 178 180 2 A34855 6.1 HQ HCORE U 1.40 4220 1.8 1 0.002 0.82
GCHD474 180 182 2 A34856 6.1 HQ HCORE U 1.39 4710 40m @ 0.81% 2.04 2.1 1 0.002 0.93
GCHD474 182 184 2 A34857 7.5 HQ HCORE U 0.46 1890 68m @ 0.65% 1.39 0.8 1 0.002 0.39
GCHD474 184 186 2 A34858 6.4 HQ HCORE U 0.23 1280 0.8 1 1.68
GCHD474 186 188 2 A34859 7 HQ HCORE U 0.36 2470 1.1 1 0.002 1.45
GCHD474 188 190 2 A34860 7 HQ HCORE U 0.54 1890 0.6 1
GCHD474 A34861 PULP STD CHHG_01 2.46 9030 3.6 2 0.008 1.44
GCHD474 190 192 2 A34862 7.9 HQ HCORE U Cu t 1.134370 1.7 1 0.002 0.60
GCHD474 192 194 2 A34863 7.4 HQ HCORE U 0.68 2150 0.9 1 0.002 0.49
GCHD474 194 196 2 A34864 6.8 HQ HCORE U 0.72 2820 1.4 2 0.003 0.99
GCHD474 196 198 2 A34865 8 HQ HCORE U 0.89 3310 1.6 1 0.004 0.81
GCHD474 198 200 2 A34866 7.4 HQ HCORE U 1.60 4300 2.3 1 0.002 1.26
GCHD474 200 202 2 A34867 6.6 HQ HCORE U 1.55 3900 1.7 1
GCHD474 202 204 2 A34868 6.8 HQ HCORE U 1.72 6580 3.0 7 0.003 2.41
GCHD474 204 206 2 A34869 6.4 HQ HCORE U 1.14 4090 2.6 7 0.006 2.90
GCHD474 206 208 2 A34870 7.2 HQ HCORE U 1.00 4790 10m @ 0.47% 1.40 2.0 1 0.003 2.26
GCHD474 208 210 2 A34871 8 HQ HCORE U 0.83 3000 1.3 2 0.002 2.65
GCHD474 210 212 2 A34872 6.3 HQ HCORE U 0.44 1930 1.1 2 0.003 2.73
GCHD474 210 212 A34872R CRUSH DUP 0.42 1870 1.1 2 0.002 2.70
GCHD474 212 214 2 A34873 7.1 HQ HCORE U 0.49 1760 1.3 1 2.60
GCHD474 214 216 2 A34874 6.2 HQ HCORE U 0.48 3030 1.4 1 1.67
GCHD474 216 218 2 A34875 7.1 HQ HCORE U 0.03 92 0.2 1
GCHD474 218 220 2 A34876 7.9 HQ HCORE U 2.13 9630 4.7 1 8.10
GCHD474 220 222 2 A34877 6.4 HQ HCORE U En d B2 3.07 9160 3.5 2 1.04
GCHD474 222 224 2 A34878 7.2 HQ HCORE U Sta rt B3 2.788070 2.89 2
GCHD474 224 226 2 A34879 7.2 HQ HCORE U 1.94 5180 1.95 2
GCHD474 226 228 2 A34880 6.6 HQ HCORE U 0.16 1130 0.62 1 0.002 1.43
GCHD474 228 230 2 A34881 7.5 HQ HCORE U 0.25 1210 0.79 1 0.003 1.91
GCHD474 230 232 2 A34882 7.6 HQ HCORE U 2.02 8720 3.38 3 0.005 3.67
GCHD474 232 234 2 A34883 7.4 HQ HCORE U 1.79102503.83 2 0.005 2.74
GCHD474 234 236 2 A34884 7.1 HQ HCORE U 1.88120503.51 2 0.005 2.02
GCHD474 236 238 2 A34885 8.1 HQ HCORE U 1.39 7660 2.68 5 0.010 1.80
GCHD474 238 240 2 A34886 6.8 HQ HCORE U 0.67 4180 2.07 7 0.005 2.19
GCHD474 A34887 3.2 CB BLANK 43 0.11 2
GCHD474 240 242 2 A34888 7.6 HQ HCORE U 0.75 14450 6.09 12 0.012 2.54
GCHD474 242 244 2 A34889 6.9 HQ HCORE U 0.55 4830 3.26 3 0.005 2.64
GCHD474 244 246 2 A34890 6.3 HQ HCORE U 0.88 4220 28m @ 0.71 1.45 2.79 17 0.006 5.43
GCHD474 246 248 2 A34891 7.4 HQ HCORE U 0.46 2820 1.40 9 0.019 1.23
GCHD474 248 250 2 A34892 7.6 HQ HCORE U 0.33 3730 1.54 6 0.018 1.98
GCHD474 250 252 2 A34893 8 HQ HCORE U 0.30 1780 0.90 6 0.015 0.68
GCHD474 252 254 2 A34894 7.4 HQ HCORE U 0.27 2450 1.19 5 0.016 2.46
GCHD474 254 256 2 A34895 8.2 HQ HCORE U 0.34 4240 1.79 6 0.017 5.85
GCHD474 256 258 2 A34896 7 HQ HCORE U 0.23 4180 4m @ 0.42% 0.29 1.76 4 0.015 4.95
GCHD474 258 260 2 A34897 7.4 HQ HCORE U 0.18 2750 68m @ 0.48% 1.03 1.50 6 0.017 5.39
GCHD474 258 260 A34897R CRUSH DUP 0.18 2870 1.60 6 0.018 5.56
GCHD474 260 262 2 A34898 7.5 HQ HCORE U 0.21 2140 1.35 6 0.015 3.87
GCHD474 262 264 2 A34899 7.8 HQ HCORE U 0.24 2580 1.30 6 0.017 1.31
GCHD474 A34900 PULP STD CHMG_01 0.32 2370 1.41 8 0.056 2.47
GCHD474 264 266 2 A34901 7.3 HQ HCORE U 0.15 2230 1.08 6 0.029 1.65
GCHD474 266 268 2 A34902 7.3 HQ HCORE U
50.13 2210 1.22 20 0.030 2.47
GCHD474 268 270 2 A34903 6.4 HQ HCORE U 0.17 2540 178m @ 0.48% 0.93 1.41 7 0.027 1.67
GCHD474 270 272 2 A34904 8.1 HQ HCORE U 0.07 1210 0.76 9 0.031 1.09
GCHD474 Au -AA26 ME-MS61
Cu % Cu toff INTERCEPT
0.2 0.3 0.4
-MS61 -MS61 E-MS61 -MS61
|
Hole ID
|
From
(m)
|
To
(m)
|
Lgth
|
Sample
ID
|
Wt
(kg)
|
Bit
Size
|
Sample
type
|
QA
QC
|
Comment
|
4m Au
Comp ppm
|
QA
QC
|
Cu
ppm
|
QA
QC
|
% % %
8m 4m 4m
|
Metres @ Cu%
|
Au
g/t
|
Ag
ppm
|
Mo
ppm
|
Re
ppm
|
S%
|
|
GCHD474
|
272
|
274
|
2
|
A34905
|
7.4
|
HQ
|
HCORE
|
U
|
0.07
|
1150
|
0.69
|
10
|
0.032
|
1.19
|
|
GCHD474
|
274
|
276
|
2
|
A34906
|
7
|
HQ
|
HCORE
|
U
|
0.06
|
1150
|
0.61
|
11
|
0.029
|
0.23
|
|
GCHD474
|
276
|
278
|
2
|
A34907
|
7.1
|
HQ
|
HCORE
|
U
|
0.07
|
871
|
0.53
|
10
|
0.026
|
0.68
|
|
GCHD474
|
278
|
280
|
2
|
A34908
|
7.8
|
HQ
|
HCORE
|
U
|
0.14
|
1925
|
0.90
|
13
|
0.036
|
2.20
|
|
GCHD474
|
280
|
282
|
2
|
A34909
|
7.2
|
HQ
|
HCORE
|
U
|
0.15
|
1935
|
1.07
|
16
|
0.035
|
1.60
|
|
GCHD474
|
282
|
284
|
2
|
A34910
|
7.1
|
HQ
|
HCORE
|
U
|
0.09
|
1435
|
0.78
|
13
|
0.031
|
0.66
|
|
GCHD474
|
284
|
286
|
2
|
A34911
|
8
|
HQ
|
HCORE
|
U
|
0.02
|
635
|
0.35
|
8
|
0.030
|
0.24
|
|
GCHD474
|
286
|
288
|
2
|
A34912
|
7.3
|
HQ
|
HCORE
|
U
|
0.09
|
1860
|
1.07
|
10
|
0.056
|
1.24
|
|
GCHD474
|
288
|
290
|
2
|
A34913
|
7.8
|
HQ
|
HCORE
|
U
|
0.06
|
1420
|
0.75
|
11
|
0.034
|
0.91
|
|
GCHD474
|
290
|
292
|
2
|
A34914
|
7.5
|
HQ
|
HCORE
|
U
|
0.04
|
840
|
0.57
|
13
|
0.038
|
0.46
|
|
GCHD474
|
292
|
294
|
2
|
A34915
|
7.8
|
HQ
|
HCORE
|
U
|
0.08
|
2080
|
1.33
|
14
|
0.034
|
1.14
|
|
GCHD474
|
294
|
296
|
2
|
A34916
|
6.2
|
HQ
|
HCORE
|
U
|
0.02
|
718
|
0.59
|
11
|
0.046
|
0.46
|
|
GCHD474
|
296
|
298
|
2
|
A34917
|
8.3
|
HQ
|
HCORE
|
U
|
0.02
|
750
|
0.58
|
11
|
0.038
|
0.56
|
|
GCHD474
|
296
|
298
|
A34917R
|
CRUSH
|
DUP
|
0.02
|
804
|
0.59
|
12
|
0.038
|
0.61
|
|
GCHD474
|
298
|
300
|
2
|
A34918
|
7.2
|
HQ
|
HCORE
|
U
|
0.02
|
350
|
0.25
|
12
|
0.026
|
0.23
|
|
GCHD474
|
300
|
302
|
2
|
A34919
|
7.1
|
HQ
|
HCORE
|
U
|
0.30
|
2950
|
2.23
|
26
|
0.098
|
1.32
|
|
GCHD474
|
302
|
304
|
2
|
A34920
|
7.4
|
HQ
|
HCORE
|
U
|
0.05
|
1280
|
0.88
|
85
|
0.129
|
1.18
|
|
GCHD474
|
304
|
306
|
2
|
A34921
|
7.2
|
HQ
|
HCORE
|
U
|
0.03
|
379
|
0.32
|
8
|
0.025
|
1.18
|
|
GCHD474
|
306
|
308
|
2
|
A34922
|
7.8
|
HQ
|
HCORE
|
U
|
0.03
|
641
|
0.42
|
10
|
0.031
|
1.25
|
|
GCHD474
|
308
|
310
|
2
|
A34923
|
8.2
|
HQ
|
HCORE
|
U
|
0.04
|
851
|
0.50
|
8
|
0.015
|
0.54
|
|
GCHD474
|
310
|
312
|
2
|
A34924
|
7.4
|
HQ
|
HCORE
|
U
|
0.03
|
881
|
0.59
|
9
|
0.022
|
0.50
|
|
GCHD474
|
312
|
314
|
2
|
A34925
|
8.6
|
HQ
|
HCORE
|
U
|
0.02
|
556
|
0.42
|
10
|
0.026
|
0.54
|
|
GCHD474
|
314
|
316
|
2
|
A34926
|
7.3
|
HQ
|
HCORE
|
U
|
0.14
|
3710
|
1.31
|
96
|
0.369
|
1.46
|
|
GCHD474
|
316
|
318
|
2
|
A34927
|
7.4
|
HQ
|
HCORE
|
U
|
0.11
|
3200
|
1.00
|
30
|
0.141
|
1.06
|
|
GCHD474
|
318
|
320
|
2
|
A34928
|
7.4
|
HQ
|
HCORE
|
U
|
0.12
|
3690
|
1.35
|
28
|
0.124
|
1.21
|
|
GCHD474
|
320
|
322
|
2
|
A34929
|
7.2
|
HQ
|
HCORE
|
U
|
0.07
|
2810
|
0.76
|
12
|
0.057
|
1.28
|
|
GCHD474
|
322
|
324
|
2
|
A34930
|
7.3
|
HQ
|
HCORE
|
U
|
0.08
|
2870
|
0.96
|
7
|
0.037
|
1.09
|
|
GCHD474
|
324
|
326
|
2
|
A34931
|
7.8
|
HQ
|
HCORE
|
U
|
0.09
|
3620
|
1.17
|
14
|
0.071
|
0.95
|
|
GCHD474
|
326
|
328
|
2
|
A34932
|
8.4
|
HQ
|
HCORE
|
U
|
0.12
|
3010
|
1.24
|
15
|
0.071
|
1.25
|
|
GCHD474
|
A34933
|
PULP
|
STD
|
CHMG_01
|
0.30
|
2440
|
1.49
|
8
|
0.058
|
2.58
|
|
GCHD474
|
328
|
330
|
2
|
A34934
|
7
|
HQ
|
HCORE
|
U
|
0.12
|
3240
|
1.37
|
19
|
0.085
|
0.78
|
|
GCHD474
|
330
|
332
|
2
|
A34935
|
7.8
|
HQ
|
HCORE
|
U
|
0.12
|
3050
|
0.92
|
9
|
0.032
|
0.49
|
|
GCHD474
|
332
|
334
|
2
|
A34936
|
7
|
HQ
|
HCORE
|
U
|
0.19
|
3310
|
7.56
|
18
|
0.054
|
0.97
|
|
GCHD474
|
334
|
336
|
2
|
A34937
|
7.7
|
HQ
|
HCORE
|
U
|
0.19
|
4270
|
2.13
|
4
|
0.021
|
1.03
|
|
GCHD474
|
334
|
336
|
A34937R
|
CRUSH
|
DUP
|
0.18
|
4120
|
2.16
|
4
|
0.024
|
1.02
|
|
GCHD474
|
336
|
338
|
2
|
A34938
|
7
|
HQ
|
HCORE
|
U
|
0.35
|
5750
|
1.98
|
8
|
0.024
|
1.18
|
|
GCHD474
|
338
|
340
|
2
|
A34939
|
7.6
|
HQ
|
HCORE
|
U
|
0.22
|
4950
|
1.85
|
14
|
0.026
|
2.37
|
|
GCHD474
|
340
|
342
|
2
|
A34940
|
6.8
|
HQ
|
HCORE
|
U
|
0.42
|
6120
|
1.84
|
13
|
0.039
|
0.92
|
|
GCHD474
|
342
|
344
|
2
|
A34941
|
8.2
|
HQ
|
HCORE
|
U
|
0.25
|
4190
|
1.43
|
15
|
0.063
|
0.50
|
|
GCHD474
|
344
|
346
|
2
|
A34942
|
7.6
|
HQ
|
HCORE
|
U
|
0.23
|
4470
|
1.75
|
6
|
0.030
|
0.86
|
|
GCHD474
|
346
|
348
|
2
|
A34943
|
7.5
|
HQ
|
HCORE
|
U
|
0.36
|
3810
|
1.68
|
4
|
0.014
|
1.01
|
|
GCHD474
|
348
|
350
|
2
|
A34944
|
7.2
|
HQ
|
HCORE
|
U
|
0.18
|
2900
|
1.28
|
12
|
0.048
|
1.07
|
|
GCHD474
|
350
|
352
|
1.6
|
A34945
|
7
|
HQ
|
HCORE
|
U
|
0.17
|
4090
|
17.6m @ 0.45%
|
0.26
|
1.32
|
25
|
0.095
|
0.58
|
|
37.6m @ 0.38%
|
0.18
|
|
37.6m @ 0.38%
|
0.18
|
GCHD474 Drill Site, Central Copper Hill
6
JORC Compliance Statement
Set out below are Sections 1 and 2 of Table 1, JORC Code, 2012 Edition for GCHD474.
JORC Table 1
Section 1: Sampling Techniques and Data
|
Criteria
|
JORC Code explanation
|
Commentary
|
|
Sampling techniques
|
Nature and quality of sampling (eg cut channels, random chips, or specific specialised industry standard measurement tools
appropriate to the minerals under investigation, such as down hole gamma sondes, or handheld XRF instruments, etc). These examples should not be taken as limiting the broad meaning of sampling.
Include reference to measures taken to ensure sample representivity and the appropriate calibration of any measurement tools or systems used.
|
Core drilling samples using PQ and HQ -sized core were cut using a Diamond saw and half core sent for assay. Broken sections (0 to 36
metres) were sampled using best efforts to maintain representative samples. Core losses were recorded and lost core zones given zero grade.
|
|
Drilling techniques
|
Drill type (eg core, reverse circulation, open-hole hammer, rotary air blast, auger, Bangka, sonic, etc) and details (eg core diameter,
triple or standard tube, depth of Diamond tails, face-sampling bit or other type, whether core is oriented and if so, by what method, etc).
|
Core drilling (PQ & HQ triple tube.)
Core orientation using Reflex ACE System
|
|
Drill sample recovery
|
Method of recording and assessing core and chip sample recoveries and results assessed.
Measures taken to maximise sample recovery and ensure representative nature of the samples.
Whether a relationship exists between sample recovery and grade and whether sample bias may have occurred due to preferential
loss/gain of fine/coarse material.
|
Core recoveries at Copper Hill are generally excellent. Interval 0 to 36 metres: rubble then core/rubble combined. Is regarded as being
representative of the interval sampled.
All samples are weighed - see assay table for details
|
|
Logging
|
Whether core and chip samples have been geologically and geotechnically logged to a level of detail to support appropriate
Mineral Resource estimation, mining studies and metallurgical studies.
Whether logging is qualitative or quantitative in nature. Core (or
costean, channel, etc) photography.
The total length and percentage of the relevant intersections logged.
|
Logging was carried out at a level commensurate with an advanced exploration/development program with lithologies, mineralisation,
alteration, faults, fractures and other geotechnical aspects noted sufficient for mining studies
Logging was both qualitative and quantitative. Half core was retained
and all core photographed wet and dry.
Hole GCHD474 was logged in detail over its full length.
|
|
Sub-
sampling techniques and sample preparation
|
If core, whether cut or sawn and whether quarter, half or all core
taken.
If non-core, whether riffled, tube sampled, rotary split, etc and whether sampled wet or dry.
For all sample types, the nature, quality and appropriateness of the sample preparation technique.
Quality control procedures adopted for all sub-sampling stages to maximise representivity of samples.
Measures taken to ensure that the sampling is representative of the in situ material collected, including for instance results for field duplicate/second-half sampling.
Whether sample sizes are appropriate to the grain size of the material being sampled.
|
Core - sawn, half core sent for assay, half core retained
All necessary steps taken to avoid contamination between samples.
Seven duplicate, six standards and one blank were inserted (see table above).
Pulps retained at lab.
|
|
Quality of assay data
and laboratory
tests
|
The nature, quality and appropriateness of the assaying and laboratory procedures used and whether the technique is
considered partial or total.
For geophysical tools, spectrometers, handheld XRF instruments, etc, the parameters used in determining the analysis including instrument make and model, reading times, calibrations factors
applied and their derivation, etc.
Nature of quality control procedures adopted (eg standards, blanks, duplicates, external laboratory checks) and whether acceptable levels of accuracy (ie lack of bias) and precision have been established.
|
All base metal assays tested after crushing to -80#, multiple acid digest and testing by ALS method ME-MS61 (48 elements, low detection
levels). All gold assays by 50g Fire Assay, ALS method Au-AA26
Standard samples prepared by a qualified/registered laboratory (ALS)
All samples tested by ALS Orange with internal checks, matching checks with other ALS labs and annual 'round robin' comparisons with competitor labs.
Acceptable levels of accuracy and precision have been established
|
|
Verification
of sampling and assaying
|
The verification of significant intersections by either independent or alternative company personnel.
The use of twinned holes.
Documentation of primary data, data entry procedures, data verification, data storage (physical and electronic) protocols.
Discuss any adjustment to assay data.
|
No independent verification was carried out
No twinned holes were drilled
Drill logs are hard copy, assays stored as spreadsheets as reported by
ALS then matched to drill hole interval and stored digitally
Weighted adjustments to assay data in lost core/rubble zones.
|
|
Location of
|
Accuracy and quality of surveys used to locate drill holes (collar and down-hole surveys), trenches, mine workings and other
|
Drill hole collar locations by GPS and DGPS, down-hole Reflex Gyro
MGA (GDA) grid system
|
7
|
Criteria
|
JORC Code explanation
|
Commentary
|
|
data points
|
locations used in Mineral Resource estimation.
Specification of the grid system used.
Quality and adequacy of topographic control.
|
Topographic control adequate for exploration and Inferred, Indicated and Measured Resource calculations
|
|
Data spacing and
distribution
|
Data spacing for reporting of Exploration Results.
Whether the data spacing and distribution is sufficient to establish the degree of geological and grade continuity appropriate for the Mineral Resource and Ore Reserve estimation procedure(s) and classifications applied.
Whether sample compositing has been applied.
|
Sampled at 2 metre intervals.
4 metre composites to 100 metres, then 2 metre intervals to EOH.
|
|
Orientation
of data in relation to geological structure
|
Whether the orientation of sampling achieves unbiased sampling of possible structures and the extent to which this is known,
considering the deposit type.
If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.
|
Copper Hill shows typical 'porphyry-style' mineralisation with
mineralisation disseminated and veined within porphyry intrusions and in veins and breccias within the adjacent country rock.
GCHD474 was drilled to test zones between previous core and reverse circulation drill holes adjacent to a higher grade dilation zone within the overall Copper Hill igneous complex. The orientation of the mineralised zone is based on the previous drilling results and on structural mapping (Cyprus Minerals) and recent detailed core structural measurements.
|
|
Sample
security
|
The measures taken to ensure sample security.
|
No specific security measures were taken. The ALS Laboratory is 40
kilometres from Copper Hill and GCR's trained staff prepared and transported all samples.
|
|
Audits or
reviews
|
The results of any audits or reviews of sampling techniques and data.
|
No audits have been carried out specifically on the sampling techniques and data in this report but procedures followed the
techniques set out in a report to GCR by Dr Colin Brooks. Internal QA/QC reviews are made for each new drill hole to consider potential problems and an in-house procedure manual sets out all requirements.
|
Section 2: Reporting of Exploration Results
|
Criteria
|
JORC Code explanation
|
Commentary
|
|
Mineral tenement
and land tenure
status
|
Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint
ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental 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.
|
The Copper Hill - Molong Project is held 100% by GCR under EL6391 (33 units, 95 square kilometres).
NSW Trade & Investment's Mineral Exploration Assessment
Department has granted renewal of 33 units (100%) to 10th March
2016.
|
|
Exploration
done by other parties
|
Acknowledgment and appraisal of exploration by other parties.
|
Since 1960's Anaconda, Amax Australia, Le Nickel, Homestake, Cyprus
Minerals, Newcrest and MIM Ltd.
|
|
Geology
|
Deposit type, geological setting and style of mineralisation.
|
Porphyry-style; tonalite-dacite intrusions into andesitic island-arc volcanics with copper-gold in disseminations, sheeted veins, stockworks and breccias
|
|
Drill hole
Information
|
A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:
o easting and northing of the drill hole collar
o elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collar
o dip and azimuth of the hole
o down hole length and interception depth
o hole 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.
|
Hole ID Easting Northing mRL Dip Azi(mag) Depth
GCHD474 674743 6341335 1,586 -60° 220° 351.6m
|
|
Data aggregation
methods
|
In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg 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
|
0.2% copper cut-off grade with maximum
8m.
0.4% copper cut-off grade with maximum
reflect differing sample lengths where they occur.
|
8
|
Criteria
|
JORC Code explanation
|
Commentary
|
|
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
between mineralisatio n widths and intercept lengths
|
These relationships are particularly important in the reporting of
Exploration Results.
If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.
If it is not known and only the down hole lengths are reported,
there should be a clear statement to this effect (eg 'down hole length, true width not known').
|
Higher grade mineralised zones are sub-vertical to steeply east dipping in orientation within a broad envelope of weakly mineralised
intrusions with some barren dykes. In this situation discussion of the geometry does not have the same relevance as drilling veins or layers as in VMS deposits but with a 65 degree hole inclination the zone has been intersected at 60 degrees and the 'true width' will be approximately 65% of the reported width.
|
|
Diagrams
|
Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being
reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.
|
Drill sections, plans and figures are included in the report
|
|
Balanced
reporting
|
Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting
of Exploration Results.
|
All assay results are set out in the table in the report
|
|
Other substantive
exploration data
|
Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations;
geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock
characteristics; potential deleterious or contaminating substances.
|
Previously reported
|
|
Further work
|
The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).
Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.
|
This hole is the sixth in a planned program of 5000 metres of core drilling at Copper Hill. The program has been suspended to assess the
data. And recalculate the resource to comply with 2012-JORC
requirements.
|
Compliance Statement. The information in this report that relates to Exploration Results is based on information compiled by Mr. Kim Stanton-Cook, who is a member of the Australian Institute of Geoscientists, is a full-time employee of GCR, and 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, Mineral Resources and Ore Reserves". Mr. Stanton-Cook consents to the inclusion in the report of the matters based on this information in the form and context in which it appears.
9