An anonymous director reports
SILVERCORP INTERCEPTS 1.42 METRE INTERVAL GRADING 263 G/T GOLD AND 335 G/T SILVER AT THE HPG MINE, YING MINING DISTRICT, CHINA
Silvercorp Metals Inc. is releasing the highlights of its recently completed 2013 step-out drilling program at the HPG and TLP mines in the Ying mining district, Henan province, China. The 2013 downdip drilling exploration tested high-grade zone extensions of the current major veins, targeting the downdip extensions, approximately 200 to 250 metres below the limits of existing resources.
The 2013 drilling program included both underground and surface diamond drilling, and totalled 3,459 metres of core drilling in 14 holes at the HPG mine and 10,289 metres of drilling in 16 holes at the TLP mine. Twelve of 16 holes at TLP and eight of 14 holes at HPG intercepted significant high-grade mineralization. The results from this drilling program have further extended the downdip potential of the major mineralized veins at both the HPG and TLP mines, and this mineralization remains open to depth.
Highlights of selected intercepts of drill holes include the following.
HPG mine:
-
Surface drill hole ZK-H17-0012 intercepted a 1.42-metre interval
from 784.85 metres to 786.27 metres downhole, with a 0.65-metre true width of vein H13,
grading 263 grams per tonne gold (Au), 335 g/t silver (Ag)
0.73 per cent lead (Pb) and 1.74 per cent zinc (Zn) at the minus 82-metre elevation. The
same hole also hit a 1.24-metre interval (0.57-metre true width), of vein H11,
grading 9.65 g/t Au, 286 g/t Ag, 4.30 per cent Pb and 2.19 per cent Zn at the minus 34-metre
elevation;
- Hole ZK0416 intercepted a 1.90-metre interval from 167.85 metres to 169.75 metres,
(1.54-metre true width), of vein H17, grading 1.43 g/t Au, 239 g/t Ag, 9.43 per cent Pb
and 1.69 per cent Zn at the plus-327-metre elevation;
- Hole ZK0111 intercepted a 1.90-metre interval from 76.37 metres to 78.86 metres (1.71-metre
true width), of vein H17, grading 1.94 g/t Au, 150 g/t Ag, 5.53 per cent Pb and
2.98 per cent Zn at the plus-316-metre elevation.
TLP mine
-
Surface hole ZK-III-3120 intercepted a 1.20-metre interval from 926.33 metres to
927.53 metres (0.80-metre true width), of vein T3, grading 2.54 g/t Au, 220 g/t Ag,
0.35 per cent Pb and 0.27 per cent Zn, at the plus-two-metre elevation;
- Surface hole ZK-III-2728 intercepted a 1.38-metre interval from 563.14 metres to
564.52 metres (0.65-metre true width), of vein T3E, grading 2.21 g/t Au, 338 g/t Ag,
0.95 per cent Pb and 1.30 per cent Zn, at the plus-225-metre elevation;
- Surface hole ZK-III-2510 intercepted a 1.81-metre interval from 428.29 metres to
430.10 metres (1.48-metre true width), of vein T33, grading 1.07 g/t Au, 140 g/t
Ag, 0.69 per cent Pb and 0.69 per cent Zn, at the plus-404-metre elevation.
The significant gold mineralization intercepted at depth at the HPG mine (especially the deepest surface drill hole ZK-H17-0012 that intersected vein H13 grading 263 g/t Au and 335 g/t Ag) is encouraging as it indicates the presence of a high-grade gold-silver-lead-zinc system about 300 metres below where the lowest mining tunnels are located. This may represent a change in the style of mineralization from silver-lead-zinc dominated at shallows to a gold dominated style at depth, providing potential for metal resource expansion at depth.
SELECTED DRILLING RESULTS FROM THE HPG MINE
From To Interval True width
Hole ID (m) (m) (m) (m)
ZK0416 167.85 169.75 1.90 1.54
ZK00+2508 53.49 55.20 1.71 1.46
140.98 142.58 1.60 1.57
ZK00+2509 104.65 105.70 1.05 0.95
152.42 153.40 0.98 0.85
ZK0111 76.37 78.86 2.49 1.52
163.80 165.70 1.90 1.71
ZK0215 154.08 155.82 1.74 1.48
ZK03+2501 73.08 74.01 0.93 0.79
ZK01+2502 129.61 131.41 1.80 1.57
ZK-H17-0012 320.02 323.62 3.60 1.29
725.28 726.52 1.24 0.57
784.85 786.27 1.42 0.65
914.05 914.35 0.30 0.14
Mineralized
Hole ID Ag (g/t) Au (g/t) Pb (%) Zn (%) vein
ZK0416 239 1.43 9.43 1.69 H17
ZK00+2508 58 0.03 8.39 0.16 H13
141 0.24 9.19 0.05 H17
ZK00+2509 20 0.08 1.18 1.77 New zone
45 0.20 2.61 1.67 H17
ZK0111 59 3.10 1.20 1.78 H13
150 1.94 5.53 2.98 H17
ZK0215 41 0.81 0.96 0.17 H17
ZK03+2501 240 0.38 1.48 1.42 H13
ZK01+2502 90 0.13 4.08 4.50 H15
ZK-H17-0012 86 0.26 2.43 7.85 H5
286 9.65 4.30 2.19 H11
335 263.26 0.73 1.74 H13
25 3.31 0.84 0.55 H17
SELECTED DRILLING RESULTS FROM THE TLP MINE
From To Interval True width
Hole (m) (m) (m) (m)
ZK-III-3514 387.50 389.50 2.00 1.30
ZK-III-1526 820.71 821.65 0.94 0.63
ZK-III-3120 926.33 927.53 1.20 0.80
ZK-III-3515 535.1 537.04 1.94 1.33
ZK-III-2318 214.70 216.13 1.43 0.73
545.55 546.47 0.92 0.59
ZK-III-1928 214.89 215.73 0.84 0.38
ZK-III-2728 553.24 556.47 3.23 1.56
563.14 564.52 1.38 0.65
ZK-III-2729 639.15 640.40 1.25 0.50
ZK-III-0726 246.86 248.31 1.45 0.89
ZK-III-1820 532.03 532.83 0.80 0.47
652.46 653.57 1.11 0.64
ZK-III-2510 428.29 430.10 1.81 1.48
Mineralized
Hole Ag (g/t) Au (g/t) Pb (%) Zn (%) vein
ZK-III-3514 12 0.03 3.10 0.03 T3
ZK-III-1526 7 0.00 2.97 0.14 T3E
ZK-III-3120 220 2.54 0.35 0.27 T3
ZK-III-3515 168 0.00 0.30 0.08 T3
ZK-III-2318 115 0.44 1.03 1.47 New zone
111 0.00 0.36 0.33 T3
ZK-III-1928 80 0.00 1.15 0.04 T1
ZK-III-2728 117 0.51 2.51 0.20 T3
338 2.21 0.95 1.30 T3E
ZK-III-2729 9 0.00 5.54 0.50 T3
ZK-III-0726 141 0.00 0.25 0.15 T1W1
ZK-III-1820 less than
22 0.05 3.95 0.06 New zone
less than
140 0.05 0.71 0.02 New zone
ZK-III-2510 145 1.07 4.53 0.69 T33
The planned 2014 exploration drilling program at the HPG and TLP mines will include two drill rigs at underground drilling stations and one drill rig at the surface to further test the extension of the deep mineralization as demonstrated by the drill holes.
Quality control
Drill cores are NQ size. Drill core samples, limited by apparent mineralization contact or shear/alteration contact, were split into halves by saw cutting. One-half samples of the cores are stored in the company's core shacks for future reference and checking, and the other half-core samples are shipped in security sealed bags to the Chengde Huakan 514 Geology and Minerals Testing and Research Institute in Chengde, Hebei province, and the Analytical Lab of the Inner Mongolia Geological Exploration Bureau in Hohhot, Inner Mongolia. Both analytical labs are ISO9000 certified. For analysis, the sample is dried and crushed to minus one millimetre and then split to a 200-gram to 300-gram subsample which is further pulverized to minus 200 mesh. Two subsamples are prepared from the pulverized sample. One is digested with aqua regia for gold analysis with AAS, and the other is digested with two-acids for analysis of silver, lead and zinc.
A routine quality assurance/quality control procedure is adopted at each lab to monitor the analytical quality of the lab. Certified reference materials (CRM), pulp duplicates and blanks are inserted into each lab batch of samples. QA/QC data at the lab are attached to the assay certificates for each batch of samples.
The company maintains its own comprehensive quality assurance and quality control program to ensure best practice in sample preparation and analysis of the drill core samples. Project geologists regularly insert CRM, field duplicates and blanks, to each batch of core samples, to monitor the sample preparation and analysis procedures at the labs. The analytical quality of the labs is further evaluated with external checks by sending about 3 per cent of the pulp samples to higher level labs to check for lab bias.
Data from both the company and the commercial labs' QA/QC programs are reviewed on a timely basis by project geologists.
Rujin Jiang, PGeo, is the qualified person on the project as defined under National Instrument 43-101. He has verified the information and has reviewed and approved the contents of this news release.
We seek Safe Harbor.
© 2024 Canjex Publishing Ltd. All rights reserved.