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Silvercorp Reports High-Grade Mineralization Zones Revealed by its 2016 Exploration Tunneling at the SGX Mine, Ying Mining District, China

23.01.2017  |  CNW

Trading Symbol: TSX: SVM

VANCOUVER, Jan. 23, 2017 /CNW/ - Silvercorp Metals Inc. ("Silvercorp" or the "Company") (TSX:SVM) is pleased to report the results of its 2016 exploration program at the SGX mine, Ying Mining District, Henan Province, China.

The Company completed 21,358 meters ("m") underground diamond drilling and 21,886m exploration tunneling in 2016 at the SGX mine. Results of the underground drilling continuously extended the major mineralized vein structures along strike and downdip, and the 8,296m drift tunneling exposed a total of 3,348m of high-grade mineralized zones.

Highlights of selected mineralization zones exposed in exploration drift tunnels:

  • Drift Tunnel CM105-S2W2-180-12ANYM exposed mineralization of 155m long and 1.09m wide (true width) grading 851 grams per tonne ("g/t") silver ("Ag"), 14.59% lead ("Pb") and 1.98% zinc ("Zn") within vein structure S2W2 on the 180m level;

  • Drift Tunnel CM105-S2W2-180-12ASYM exposed mineralization of 125m long and 0.80m wide (true width) grading 1,035g/t Ag, 17.60% Pb and 2.78% Zn within vein structure S2W2 on the 180m level; and

  • Drift Tunnel PD700-S19-400-9ANYM exposed mineralization of 55m long and 0.81m wide (true width) grading 1,059g/t Ag, 7.21% Pb and 6.74% Zn within vein structure S19 on the 400m level.

Highlights of selected intersections of drill holes:

  • Hole ZK05S1905 intersected a 2.85m interval from 168.94m to 171.79m, 1.48m true width, of vein S19 grading 571 g/t Ag, 19.16% Pb and 1.04% Zn at the 130m elevation; and

  • Hole ZK14AS2W204 intersected an 1.08m interval from 91.98m to 93.06m, 0.64m true width, of vein S2 grading 959g/t Ag, 6.7% Pb and 1.38% Zn at the 236m elevation.

Underground diamond holes in the 2016 drilling program were mainly designed to delineate the downdip and along-strike extensions of known mineralized vein structures in the production area and test for new veins in the adjacent less-explored areas.

The 2016 drilling program at SGX is briefly summarized in the following table:








Major Target Veins

Target
Elevation (m)

Meters
Drilled

Holes
Completed

Holes with
Assay
Received

Holes
Intercepted
Vein
Structures

Holes
Intercepted
Mineralization

S2, S2W2, S7, S7-1, S8,
S14, S16W, S16W1,
S18, S19, S21, S22

-100 to 600

21,538

77

74

77

23

 

Exploration tunneling, comprising drifting, crosscutting and raising, was driven along and across major mineralized vein structures to upgrade drill defined mineral resources and test for parallel and splay structures.

The 2016 tunneling program at SGX is briefly summarized in the following table:







Major Target Veins

Target
Levels
(m)

Total
Tunneling
(m)

Channel
Samples
Collected

Drift
Tunneling
Included
(m)

Total Mineralization Exposed by Drift
Tunneling

Length
(m)

Average
True Width
(m)

Ag
(g/t)

Pb
(%)

Zn
(%)

S1, S2, S2W2, S7, S7-1,
S8, S14, S16W, S19,
S21, S29, S31, S32

160-710

21,886

5,244

8,296

3,348

0.81

368

6.69

3.16

 

Tables 1 and 2 below list the assay results of some selected mineralized zones exposed in drift tunnels and mineralized intersections in drill holes in the 2016 exploration program.

Table 1: Selected mineralized zones exposed by exploration tunneling at the SGX Mine in 2016










Tunnel ID

Target
Vein

Level (m)

Length
(m)

Horizontal
Width (m)

Average
True
Width
(m)

 Ag
(g/t)

Pb
(%)

Zn
(%)

CM105-S2-180-12ASYM

S2

180

50

1.01

1.00

381

12.89

1.04

CM105-S2SJ-S2-180-12ASYM

S2

180

105

1.07

1.03

409

8.55

1.66

CM105-S2-220-12SYM

S2

220

60

1.25

1.18

214

4.80

1.33

CM105-S2W2-220-12ASYM

S2W2

220

35

0.55

0.53

697

9.84

2.66

Combined CM105-S2W2-220-12ANYM

S2W2

220

45

0.90

0.80

164

4.59

0.46

CM105-S2W2-220-12ANYM

S2W2

220

95

0.72

0.60

731

7.49

4.24

CM105-S2W2-180-12ANYM

S2W2

180

155

1.17

1.09

851

14.59

1.98

CM105-S2W2-180-12ASYM

S2W2

180

125

0.85

0.80

1,035

17.60

2.78

CM105-S2SJ-S2W2-260-12ANYM

S2W2

260

75

1.18

1.08

306

5.59

1.24

PD16-S6-300-10ANYM

S6

300

40

0.69

0.68

229

3.04

3.26

CM105-S7-260-8ANYM

S7

260

70

1.66

1.60

409

6.54

1.02

CM105-S7-260-14NYM

S7

260

80

1.03

1.00

400

4.09

1.21

CM105-S7-branch-300-12SYM

S7-branch

300

45

0.97

0.93

317

8.69

0.33

CM102-S7E2-400-SYM

S7-1

400

55

0.76

0.75

249

8.45

2.58

XPD-S7-1-260-7SYM

S7-1

260

35

0.49

0.39

150

4.83

1.83

CM101-S7-1-350-7SYM

S7-1

350

53

0.93

0.89

216

3.68

6.18

PD700-S7-1-400-13ASYM

S7-1

400

55

0.83

0.81

212

4.62

5.52

CM101-S7-1-400-NYM

S7-1

400

82

0.56

0.55

310

4.45

6.77

CM101-S7-1-400-SYM

S7-1

400

45

0.44

0.27

65

1.34

5.69

PD700-S7-1-450-15ASYM

S7-1

450

40

0.40

0.38

286

13.18

1.49

CM108-S8-680-0SYM

S8

680

75

1.00

0.96

220

3.50

3.66

CM102-S8E-480-2ASYM

S8E

480

90

0.95

0.93

235

4.57

5.33

CM102-S8E-520-2SYM

S8E

520

70

0.80

0.79

209

7.44

7.77

XPD-S8W-branch-260-13SYM

S8W-branch

260

65

0.47

0.46

245

4.63

1.64

PD16-S14-210-4ANYM

S14

210

100

0.84

0.83

498

6.83

1.29

CM101-S16W-380-N1-Sublevel

S16E

380

90

0.69

0.68

241

8.45

1.74

XPD-S19-260-7NYM

S19

260

53

0.99

0.97

315

6.57

1.46

PD700-S19-400-9ASYM

S19

400

85

0.93

0.89

323

8.78

2.31

PD700-S19-400-9ANYM

S19

400

55

0.82

0.81

1,059

7.21

6.74

PD700-S19-450-13NYM

S19

450

140

0.87

0.86

415

5.1

2.8

PD700-S19-490-9NYM

S19

490

105

0.59

0.59

244

3.27

3.74

PD700-S19-530-13ANYM

S19

530

100

0.68

0.67

219

3.57

3.91

CM102-S19-534-2ANYM

S19

534

60

0.72

0.72

335

3.79

3.24

PD700-S19-570-9ANYM

S19

570

60

0.71

0.71

245

2.30

5.23

PD700-S19-570-9NYM

S19

570

45

0.67

0.66

253

1.26

3.51

PD700-S19-610-13NYM

S19

610

45

0.70

0.69

106

3.38

4.83

XPD-S19W-300-5ASYM

S19W

300

50

0.70

0.70

200

7.19

0.48

CM105-S21W-300-10NYM

S21W

300

65

0.67

0.65

297

6.57

0.61

PD16-S29-400-51SYM

S29

400

50

0.89

0.78

180

2.04

4.78

CM102-S32-520-65SYM

S32

520

110

0.86

0.84

141

5.72

8.29

 

Table 2: Selected drilling results from the 2016 drilling program at the SGX Mine












Hole ID

From
(m)

To
(m)

Elevation
(m)

Interval
(m)

True
Width
(m)

Ag
(g/t)

Pb
(%)

Zn
(%)

Vein

Remarks

ZK127503

12.25

12.86

254

0.61

0.39

31

1.52

1.41

S21W

Test*

ZK14AS2W204

91.98

93.06

236

1.08

0.64

959

6.7

1.38

S2

Test


297.03

298.38

89

1.35

0.66

222

0.19

0.26

S2W2

Stepout**

ZK16S2W201

63.79

65.4

270

1.61

1.45

363

0.37

0.28

S2

Stepout


157.77

159.02

223

1.25

1.01

281

5.08

17.8

S2W2

Stepout


166.24

166.99

219

0.75

0.6

29

5.33

1.05

S2W2-Branch

Test

ZK16AS2W202

67.8

69.39

259

1.59

1.11

84

0.04

0.26

S2

Stepout

ZK05S1905

168.94

171.79

130

2.85

1.48

571

19.16

1.04

S19

Stepout


174.25

175.37

125

1.12

0.58

42

3.14

0.82

S19E1

Test


184.81

185.62

117

0.81

0.47

183

3.94

2.14

S19E

Test

ZK13S19009

136.65

137.39

359

0.74

0.5

450

4.96

0.75

S19

Test

ZK7AS3002

65.83

66.84

232

1.01

0.67

71

0.92

1.75

S18

Test

ZK13AS19008

29.99

31.67

440

1.68

0.83

354

0.66

0.82

S7-4

Test

ZK11S3002

93.67

94.71

234

1.04

0.63

270

8.12

0.48

S18

Stepout

ZK09S3004

82.44

83.08

212

0.64

0.47

262

3.86

1.06

S18

Stepout

ZK58S16W002

221.25

221.84

82

0.59

0.43

60

12.66

15.52

S19

Test

ZK54S16W001

3.63

4.49

262

0.86

0.39

277

4.63

3.91

S22

Test

ZK09S18005

231.53

232.57

110

1.04

0.66

197

14.9

0.1

S18

Test

ZK15S8004

273.55

274.64

315

1.09

0.81

156

0.99

0.34

S8E

Test

ZK17S8002

201.76

202.44

374

0.68

0.53

86

0.85

0.99

S8-Branch

Test

ZK18S8003

238.47

239.45

137

0.98

0.59

94

0.12

0.13

S8-Branch

Test

ZK10S19002

153

153.82

168

0.82

0.69

407

5.82

5.27

S16W1

Test

ZK0131

233.32

233.97

150

0.65

0.61

120

0.32

7.74

S7-2

Stepout

ZK8AS19002

4.95

6.03

259

1.08

0.31

54

0.83

0.5

S22

Test


136.14

137.37

149

1.23

0.37

51

1.91

0.74

S16W

Test

ZK15S8006

251.68

252.3

173

0.62

0.53

510

2.19

1.2

S8

Test

ZK10S19004

7.5

8.12

257

0.62

0.18

204

0.71

1.85

S22

Test


128.09

129.12

147

1.03

0.84

17

1.31

3.9

S16E

Test


292.22

295.03

-2

2.81

1.52

149

1.83

0.05

S19

Test

ZK15AS18003

43.64

45.46

617

1.82

1.14

193

2.36

1.09

S19

Test

ZK11AS18001

139.19

140.48

647

1.29

1.09

415

0.48

0.44

S19W1

Test

*Stepout: intersections adjacent to existing resource blocks for resource expansion;

**Test: intersections in open areas without known mineralized intersections nearby.

 

The exploration results ending June 30, 2016 will be incorporated in a NI43-101 resource update report expected to be announced in the first quarter of 2017.

The Company has proposed a comprehensive exploration program comprising 23,722m tunneling and 22,819m underground drilling for SGX in 2017 to further trace the striking and downdip extensions of known vein structures and expand and upgrade the previously defined mineral resources. The 2017 exploration at the SGX mine will be mainly focused in the current production area and its adjacent less- or non-explored potential areas. 

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. The half 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, China, 226 km northeast of Beijing, and the Zhenzhou Nonferrous Exploration Institute Lab in Zhengzhou, Henan Province, China, and both labs are ISO9000 certified analytical lab. 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 aqua regia for gold analysis with AAS, and the other is digested with two-acids for analysis of silver, lead, zinc and copper with AAS.

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 with 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 prepared and assayed with AAS at Silvercorp's mine laboratory (Ying Lab) located at the mill complex in Luoning County, Henan Province, China. The Ying lab is officially accredited by the Quality and Technology Monitoring Bureau of Henan Province and is qualified to provide analytical service. The channel samples are dried, crushed and pulverized. A 200g sample of minus 160 mesh is prepared for assay. A duplicate sample of minus 1mm is made and kept at the laboratory archives. Gold is analysed by fire assay with AAS finish, and silver, lead, zinc and copper are assayed by two-acid digestion with AAS finish.

A routine quality assurance/quality control (QA/QC) procedure is adopted to monitor the analytical quality at the 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 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 3-5% 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.

Ruijin Jiang, P. Geo, reviewed the exploration data and prepared the scientific and technical information regarding exploration results contained herein. Alex Zhang, P. Geo, VP exploration of the Company, is the Qualified Person on the project as defined under National Instrument 43-101 and he has verified and approved the contents of this news release.

About Silvercorp

Silvercorp is a low-cost silver-producing Canadian mining company with multiple mines in China. The Company's vision is to deliver shareholder value by focusing on the acquisition of under developed projects with resource potential and the ability to grow organically.  For more information, please visit our website at www.silvercorp.ca.

CAUTIONARY DISCLAIMER - FORWARD LOOKING STATEMENTS

Certain of the statements and information in this press release constitute "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and "forward-looking information" within the meaning of applicable Canadian provincial securities laws. Any statements or information that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases such as "expects", "is expected", "anticipates", "believes", "plans", "projects", "estimates", "assumes", "intends", "strategies", "targets", "goals", "forecasts", "objectives", "budgets", "schedules", "potential" or variations thereof or stating that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved, or the negative of any of these terms and similar expressions) are not statements of historical fact and may be forward-looking statements or information.  Forward-looking statements or information relate to, among other things: the price of silver and other metals; the accuracy of mineral resource and mineral reserve estimates at the Company's material properties; the sufficiency of the Company's capital to finance the Company's operations; estimates of the Company's revenues and capital expenditures; estimated production from the Company's mines in the Ying Mining District; timing of receipt of permits and regulatory approvals; availability of funds from production to finance the Company's operations; and access to and availability of funding for future construction, use of proceeds from any financing and development of the Company's properties.

Forward-looking statements or information are subject to a variety of known and unknown risks, uncertainties and other factors that could cause actual events or results to differ from those reflected in the forward-looking statements or information, including, without limitation, risks relating to: fluctuating commodity prices; calculation of resources, reserves and mineralization and precious and base metal recovery; interpretations and assumptions of mineral resource and mineral reserve estimates; exploration and development programs; feasibility and engineering reports; permits and licenses; title to properties; property interests;  joint venture partners; acquisition of commercially mineable mineral rights; financing; recent market events and conditions; economic factors affecting the Company; timing, estimated amount, capital and operating expenditures and economic returns of future production; integration of future acquisitions into the Company's existing operations;  competition;  operations and political conditions; regulatory environment in China and Canada;  environmental risks; foreign exchange rate fluctuations; insurance; risks and hazards of mining operations; key personnel; conflicts of interest; dependence on management; internal control over financial reporting as per the requirements of the Sarbanes-Oxley Act; and bringing actions and enforcing judgments under U.S. securities laws.

This list is not exhaustive of the factors that may affect any of the Company's forward-looking statements or information. Forward-looking statements or information are statements about the future and are inherently uncertain, and actual achievements of the Company or other future events or conditions may differ materially from those reflected in the forward-looking statements or information due to a variety of risks, uncertainties and other factors, including, without limitation, those referred to in the Company's Annual Information Form for the year ended March 31, 2016 under the heading "Risk Factors".  Although the Company has attempted to identify important factors that could cause actual results to differ materially, there may be other factors that cause results not to be as anticipated, estimated, described or intended.  Accordingly, readers should not place undue reliance on forward-looking statements or information.  

The Company's forward-looking statements and information are based on the assumptions, beliefs, expectations and opinions of management as of the date of this press release, and other than as required by applicable securities laws, the Company does not assume any obligation to update forward-looking statements and information if circumstances or management's assumptions, beliefs, expectations or opinions should change, or changes in any other events affecting such statements or information. For the reasons set forth above, investors should not place undue reliance on forward-looking statements and information.

SOURCE Silvercorp Metals Inc.



Contact
Gordon Neal, Vice President, Corporate Development, Silvercorp Metals Inc., Phone: (604) 669-9397, Toll Free: 1(888) 224-1881, Email: investor@silvercorp.ca, Website: www.silvercorpmetals.com
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