The Prospector News

Silvercorp Expands Mineralized Zones at the GC Mine

You have opened a direct link to the current edition PDF

Open PDF Close
Uncategorized

Share this news article

Silvercorp Expands Mineralized Zones at the GC Mine

 

 

 

 

 

 

Silvercorp Metals Inc. (TSX:SVM) (NYSE American: SVM) is pleased to report results of its exploration programs at the GC silver-lead-zinc mine, Guangdong Province, China. Exploration drilling is ongoing at the GC mine.

 

From October 1, 2018 to September 30, 2019, Silvercorp continued the extensive exploration programs at the GC mine and completed 25,877 metres of diamond drilling with three underground rigs from current production levels, and 14,243m of exploration tunneling between elevation levels -300m and 150m. The drilling program was successful in extending the major mineralized vein structures along strike and downdip, and exploration tunneling exposed high grade mineralized zones within major production vein structures. During this period, over 40 parallel and splay structures were discovered near the major mineralized zones at the GC mine and the discovery of west-east striking mineralized vein V58 expanded the mineralized zones approximately 100m to the south from the existing resources.

 

Highlights of selected drill hole intersections:

 

Hole 19CK26A03 intersected a 0.82m interval from 36.73m to 37.55m, 0.46m true width, of vein V7 grading 300 grams per tonne silver, 16.54% lead and 4.14% zinc at the -210m elevation;
 

 

Hole 19CK40A01 intersected a 1.01m interval from 70.79m to 71.80m, 0.73m true width, of newly discovered vein V52 grading 365 g/t Ag, 2.46% Pb and 12.96% Zn at the 146m elevation;
 

 

Hole 19CK2404 intersected a 2.52m interval from 73.35m to 75.87m, 2.47m true width, of newly discovered vein V2W-13 grading 319 g/t Ag, 3.75% Pb and 6.70% Zn at the -232m elevation; and
 

 

Hole 19CK4001 intersected a 1.21m interval from 93.33m to 94.54m, 1.03m true width, of vein V13 grading 566 g/t Ag, 2.23% Pb and 2.58% Zn at the 143m elevation.         

 

The drilling program is mainly conducted from the current production levels to delineate the downdip and along-strike extensions of known mineralized vein structures in the production area and test for new vein structures in the previously less-explored areas.

 

The program is summarized in the following table:

 

 

Major Target Veins Target
Elevation
 (m)
Metres
Drilled
Holes
Completed
Samples
Collected
Holes
Intercepted
Vein Structure
Holes
Intercepted
Ore [1,2]
VH1-1, VH1-4, V2E, V2-4E, V2W, V2W-3,  V6-1, V6E3, V6M, V6M-3, V6M06, V7, V8-1, V9W-2E, V10-1, V10-4, NV10, V13, V16, V17, V18, V18-1,V19, V19-1, V25, V27, V31, V32, V33, V37, V52, V53, V54 -254 to 156 25,877 235 5210 88 147

[1] Mineralization is defined by silver equivalent value (AgEq) greater than or equal to 100 g/t at the GC mine
[2] Formula used for AgEq calculation: 44.6*Pb% + 43.5 * Zn% + Ag g/t

 

Highlights of selected mineralized zones exposed in the drift tunnels:

 

Drift Tunnel V5-9-(-50)-30NEYM exposed mineralization 60m long and 1.09m wide (true width) grading 357 g/t Ag, 4.72% Pb and 10.08% Zn within vein structure V5-9 on the -50m level;
 

 

Drift Tunnel V19-(-75)-42WYM exposed mineralization 28m long and 0.91m wide (true width) grading 234 g/t Ag, 13.56% Pb and 6.42% Zn within vein structure V19 on the -100m level;
 

 

Drift Tunnel V52-150-119NEYM exposed mineralization 50m long and 0.86m wide (true width) grading 454 g/t Ag, 3.88% Pb and 7.39% Zn within newly discovered vein structure V52 on the 150m level; and
 

 

Drift Tunnel V32-0-50ANEYM exposed mineralization 73m long and 0.40m wide (true width) grading 635 g/t Ag, 4.57% Pb and 3.54% Zn within vein structure V32 on the 0m level.

 

The exploration tunneling, comprising drifting, crosscutting and raising, was driven along and across major mineralized vein structures to upgrade the drill-defined mineral resources and test for new parallel and splay structures, and summarized in the following table:

 

 

Major Target Veins Target
Levels
(m)
Total
Tunneling
(m)
Channel
Samples Collected
Drift
Tunneling Included
(m)
Total Ore Exposed by Drift Tunneling
Length
(m)
Average
True Width
(m)
Ag
(g/t)
Pb
(%)
Zn
(%)
V1, V1-2, V2-1, V2-2, V2-3, V2E, V2E1, V2E-4E, V2W, V2W-4, V5, V5-9, V5-12, V6M, V6E3, V6-8, V9-5, V9W-2, V10, V10-1, V13, V16, V17, V17-1, V18, V19, V32, V37, V52, V59 -300 to150 14,243 7,531 11,483 7,482 0.84 148 2.14 5.61

Tables 1 and 2 below list the assay results of selected mineralized drill hole intersections and certain mineralized zones exposed in drift tunnels from the exploration programs.

 

Table 1: Selected results from the drill programs at the GC mine

 

 

Hole ID  From
(m) 
To
(m)
Elevation
(m)
Interval
(m) 
True
Thickness
 (m) 
 Ag
(g/t) 
 Pb
(%) 
 Zn
(%) 
Vein  
 
18CK10604 43.68 45.02 -124.60 1.34 1.30 134 0.89 7.86 V19  
18CK10607 54.60 55.82 -149.18 1.22 0.98 197 1.10 3.47 V19  
18CK2208 16.18 16.67 144.25 0.49 0.46 465 0.82 0.08 V18-1  
18CK2810 119.42 120.37 19.93 0.95 0.55 430 1.69 0.94 V53 [1]  
18CK3213 36.54 37.14 -23.85 0.60 0.51 43 0.51 7.75 V6E3  
18CK32A013 104.42 104.82 141.39 0.40 0.35 596 0.28 1.31 V18  
18CK32A09 94.59 95.02 -143.75 0.43 0.23 263 1.15 5.27 V17  
18CK40A02 58.41 61.30 -120.42 2.89 1.80 94 2.42 9.29 NV10  
  81.01 81.47 -128.75 0.46 0.29 57 0.01 8.98 V10-4  
19CK10301 43.00 43.33 4.07 0.33 0.26 337 2.62 6.17 V32  
19CK10404 48.11 49.02 -206.03 0.91 0.68 71 6.59 4.01 V6-1  
19CK10507 0.00 1.00 -200.37 1.00 0.84 164 6.02 4.83 V2W  
  42.07 42.70 -206.20 0.63 0.48 40 2.59 3.36 V25  
19CK10805 130.55 130.87 86.67 0.32 0.23 116 4.59 7.16 V33  
19CK10903 78.01 78.76 -158.91 0.75 0.52 344 2.66 8.78 V10-1  
19CK11005 15.54 15.88 102.67 0.34 0.28 728 0.91 0.47 V31  
19CK11105 52.29 52.52 -155.34 0.23 0.20 162 8.63 0.80 V19-1  
19CK11106 27.87 28.81 -160.49 0.94 0.82 255 0.95 7.98 V27  
19CK11203 75.55 76.50 146.03 0.95 0.49 752 1.25 1.29 V9W-2E  
19CK11502 71.61 72.51 25.98 0.90 0.46 397 0.04 2.09 V10-5 [1]  
  82.67 83.65 21.64 0.98 0.50 225 2.78 8.34 V10-1  
19CK11504 6.48 7.27 -39.18 0.79 0.68 34 0.00 12.90 V10-1  
  138.57 139.37 -57.56 0.80 0.68 133 0.45 7.32 V13  
19CK11604 34.44 35.10 42.24 0.66 0.48 222 0.23 13.68 V17  
19CK11704 146.13 147.45 -11.41 1.32 1.14 283 0.54 4.59 V13  
19CK1601 58.20 58.40 -11.62 0.20 0.20 178 10.44 1.65 V6M-3  
19CK18A01 122.90 123.61 -216.70 0.71 0.67 63 4.45 6.19 V6M-6 [1]  
19CK18A04 59.55 59.85 -52.84 0.30 0.28 318 3.36 3.74 V2W-3  
19CK20A08 23.24 23.62 -202.80 0.38 0.37 141 3.50 4.88 V1-2  
  109.28 110.33 -214.82 1.05 1.03 83 5.43 5.56 V6M  
  121.33 122.63 -216.52 1.30 1.27 70 3.55 6.77 V6M-3  
19CK22A02 12.45 12.94 -152.19 0.49 0.42 195 5.25 3.73 V54 [1]  
  144.85 145.08 -170.60 0.23 0.20 165 4.49 5.87 V8-1  
19CK2401 0.00 1.62 -200.64 1.62 1.24 60 1.43 6.35 V2W  
  41.57 42.91 -218.15 1.34 1.22 275 1.14 4.17 V1-2  
  112.50 114.43 -248.25 1.93 0.65 109 4.82 8.49 V6M-3  
19CK2404 73.35 75.87 -231.76 2.52 2.47 319 3.75 6.70 V2W-13 [1]  
19CK26A03 36.73 37.55 -210.43 0.82 0.46 300 16.54 4.14 V7  
19CK28A05 107.34 107.71 -215.35 0.37 0.37 325 2.12 6.17 V16  
19CK3805 149.00 149.38 -19.83 0.38 0.30 42 4.84 8.04 NV4  
19CK38A02 107.30 107.72 -8.34 0.42 0.35 131 2.09 7.30 V37  
19CK4001 93.33 94.54 143.23 1.21 1.03 566 2.23 2.58 V13  
19CK40A01 70.79 71.80 146.45 1.01 0.73 365 2.46 12.96 V52 [1]  
19CK8801 9.34 11.47 56.03 2.13 1.03 68 6.08 5.28 V37  
19CK3201 0.00 0.44 -49.45 0.44 0.36 128 1.08 0.80 V18  
  150.70 154.17 -70.62 3.47 2.96 48 0.78 6.39 V58 [1]  

[1] Veins discovered between October 1, 2018 and September 30, 2019

 

Table 2: Selected mineralized zones exposed by drift tunneling at the GC mine

 

 

Tunnel Vein Level
(m)
Length
(m)
True Width
(m)
Ag
(g/t)
Pb
(%)
Zn
(%)
V10-(-150)-44NEYM V10 -150 196.0 1.25 71 1.79 4.19
V10-1-135-40SWYM V10-1 150 37.0 0.71 203 0.86 15.03
V10-1-150-38ANEYM V10-1 150 135.0 0.60 288 0.77 12.61
V10-1-100-38ANEYM V10-1 100 26.0 0.34 155 0.05 14.90
V14-50-46SWYM V13 50 131.0 0.71 92 0.79 9.35
V14-(-50)-116SWYM V13 -50 20.0 0.95 148 1.16 13.57
V16-135-32EYM V16 150 53.0 0.66 456 1.48 4.50
V16-135-32WYM V16 150 131.0 0.39 358 1.43 4.15
V17-0-34WYM V17 0 39.0 0.32 273 0.34 22.88
V17-0-34EYM V17 0 69.0 0.36 517 0.71 12.46
V17-1-0-34WYM V17-1 0 19.0 1.75 596 1.37 2.91
V17-1-0-34EYM V17-1 0 27.5 0.41 304 0.88 4.67
V8-(-50)-30AEYM V18 -50 72.0 1.11 315 2.16 2.90
V18-(-100)-30AEYM V18 -100 46.0 1.37 163 3.16 8.10
V19-(-50)-48ANEYM V19 -50 65.0 1.20 161 2.28 12.18
V19-(-75)-42WYM V19 -100 28.0 0.91 234 13.56 6.42
V19-(-75)-42EYM V19 -100 31.0 1.04 70 5.89 4.17
V2E-4E-(-50)-44ANEYM V2E-4E -50 48.0 0.46 104 2.36 6.95
V2W-(-200)-22NEYM V2W -200 94.0 2.07 90 2.47 4.11
V2W-(-200)-22SWYM V2W -200 91.0 1.78 102 2.84 4.61
V2W-(-250)-24NEYM V2W -250 54.0 2.48 137 2.58 3.55
V32-0-50ANEYM V32 0 73.0 0.40 635 4.57 3.54
V32-20-50SWYM V32 0 38.0 0.44 132 3.10 6.18
V33-0-52SWYM V33 0 60.0 0.92 201 5.77 5.15
V37-50-44ANEYM V37 50 27.0 0.74 86 6.79 7.70
V46-150-26ANWYM V46 150 14.0 0.22 257 17.35 2.82
V46-150-26ASEYM V46 150 12.0 0.18 147 9.32 1.97
V5-50-30AEYM V5 50 25.0 0.89 274 0.17 10.13
V5-12-(-50)-30ANEYM V5-12 -50 21.0 0.28 101 0.10 10.36
V5-12-(-50)-30ASWYM V5-12 -50 21.0 0.31 134 0.09 12.92
V52-150-119NEYM V52 [1] 150 50.0 0.86 454 3.88 7.39
V52-150-38WYM V52 [1] 150 11.5 0.45 307 0.93 20.84
V19-2-150-40ASEYM V59 [1] 150 22.0 0.50 226 4.22 3.65
V5-9-(-50)-30NEYM V5-9 -50 60.0 1.09 357 4.72 10.08
V6E3-0-32EYM V6E3 0 50.0 0.42 142 12.08 10.16
V7-3-100-30WYM V7-3 100 27.0 0.30 102 0.03 14.94
V9-2N-150-24AWYM V9-2N 150 19.0 0.24 804 1.87 3.27
V9-5-100-28AEYM V9-5 100 50.0 0.37 186 0.35 11.68

[1] Veins discovered between October 1, 2018 and September 30, 2019

 

Quality Control

 

Drill cores are NQ size. Drill core samples, limited by apparent mineralization contacts or shear/alteration contacts, were split into halves by saw cutting. The half cores are stored in the Company’s core shacks for future reference and checks, and the other half core samples are shipped in securely sealed bags to the on-site laboratory.

 

Channel samples are collected along sample lines perpendicular to the mineralized vein structure in exploration tunnels. Spacing between sampling lines is typically 5m along strike. Both the mineralized vein and the altered wall rocks are cut by continuous chisel chipping. Sample length ranges from 0.2m to more than 1m, depending on the width of the mineralized vein and the mineralization type. Channel samples are shipped in securely sealed bags to the on-site laboratory.

 

For analysis, the sample is dried and crushed to minus 1mm and then split to a 200-300g subsample which is further pulverized to minus 200 mesh. Two subsamples are prepared from the pulverized sample. One is digested with two-acids for analysis of silver, lead, zinc and copper with atomic absorption spectroscopy (AAS), and the other is retained as pulp reject at the lab for future reference.

 

A routine quality assurance/quality control (QA/QC) procedure is adopted to monitor the analytical quality at each lab. Certified reference materials (CRMs), 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 QA/QC program to ensure best practices in sample preparation and analysis of the exploration samples. Project geologists regularly insert CRM, field duplicates, reject duplicates and blanks to each batch of 30 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 approximately 3-5% of the pulp samples to higher level labs to check for lab bias.

 

Data from both the Company’s and the labs’ QA/QC programs are reviewed on a timely basis by project geologists.

 

Guoliang Ma, P. Geo., Manager of Exploration and Resource of the Company, is the Qualified Person for Silvercorp under NI 43-101 and has reviewed and given consent to the technical information contained in this news release.

 

About Silvercorp

 

Silvercorp is a profitable Canadian mining company producing silver, lead and zinc metals in concentrates from mines in China. The Company’s goal is to continuously create healthy returns to shareholders through efficient management, organic growth and the acquisition of profitable projects. Silvercorp balances profitability, social and environmental relationships, employees’ wellbeing, and sustainable development. 

 

Posted November 13, 2019

Share this news article

MORE or "UNCATEGORIZED"


GoGold Announces Annual Net Income of $8.1M USD for September 30, 2019

GoGold Resources Inc. (TSX: GGD) (OTCQX: GLGDF) is pleased to ann... READ MORE

December 13, 2019

Lundin Gold Announces First Export of Gold Concentrate and Doré

Lundin Gold Inc. (TSX: LUG) (Nasdaq Stockholm: LUG) reports the fi... READ MORE

December 13, 2019

O3 Mining Intersects 9.3 g/t Au Over 6.0 m, Including 25.7 g/t Au Over 1.9 m at Epsilon

O3 Mining Inc. (TSX-V: OIII) is pleased to provide new results fr... READ MORE

December 13, 2019

GT Gold Closes C$8.3 Million Investment by Newmont Goldcorp Corporation

GT Gold Corp. (TSX-V: GTT) is pleased to report that it has close... READ MORE

December 13, 2019

Canada Cobalt Intersects Massive Silver as Castle East Discovery Builds Out

Canada Cobalt Works Inc. (TSX-V: CCW) (OTC: CCWOF) (Frankfurt: 4T... READ MORE

December 13, 2019

Copyright 2019 The Prospector News - Site design by Spyderbaby Productions