Attached files

file filename
8-K - 8-K - McEwen Mining Inc.a11-10944_18k.htm

Exhibit 99.1

 

GRAPHIC

April 26, 2011

 

NEWS RELEASE

 

ENCOURAGING DRILL RESULTS CONTINUE

FROM EL GALLO & SURROUNDING DISCOVERIES

15 DRILLS NOW OPERATING

 

TORONTO, ONTARIO (April 26, 2011) US GOLD CORPORATION (NYSE: UXG) (TSX: UXG) is pleased to provide an exploration update on the El Gallo Project and two nearby discoveries, Palmarito and Haciendita, all located in Sinaloa State, Mexico. A total of 15 drills are now operating at the project, with $30 million budgeted for exploration in Mexico during 2011-2012.

 

Drill Assay Highlights

 

1)             El Gallo

 

·                  Infill drilling continues to meet its objective of upgrading inferred mineralization to the measured and indicated categories: 149.0 gpt silver over 7.2 m, 118.8 gpt silver over 12.6 m and 410.3 gpt silver over 3.0 m.

 

·                  Exploration drilling 300 m (985 ft) southeast of the El Gallo resource, has returned the deepest intersection of silver mineralization to date. Starting 240 m (790 ft) below surface, the hole returned: 131.2 gpt silver over 8.1 m, including 484.0 gpt silver over 1.0 m. This mineralization is believed to be the down-dip extension of the El Gallo deposit and opens up the possibility of additional resources at depth.

 

2)             Palmarito

 

·                  Drilling to expand and infill large gaps in the resource, where no inferred mineralization exists, has returned encouraging intersections: 184.6 gpt silver, 0.3 gpt gold over 25.9 m and 123.7 gpt silver, 0.6 gpt gold over 11.5 m. Mineralization from both holes starts less than 30 m (100 ft) below surface.

 

3)             Haciendita

 

·                  New lower grade, near surface discovery shows additional growth: 1.1 gpt gold, 30.3 gpt silver over 28.3 m,  1.8 gpt gold, 33.9 gpt silver over 17.9 m and 1.1 gpt gold, 13.5 gpt silver over 21.8 m. The discovery has now been traced over an area 125 m (410 ft) x 175 m (575 ft).

 

El Gallo Continuing Exploration Success

(Fig. 1, 2 and 3)

 

Recent drilling at El Gallo focused on upgrading inferred mineralization to the measured and indicated categories for the feasibility study due at year-end. Hole GAX-296, which intersected two encouraging

 

1



 

zones, was completed in the east area of the deposit, where all the mineralization is classified as inferred. Since the last resource update (November 2010), exploration has been very successful at increasing the level of confidence associated with this mineralization. Results from the ongoing infill program will be incorporated into a new resource estimate. Additional expansion holes will be released in the coming weeks. Drill highlights are shown below:

 

Hole #

 

Silver

 

Length

 

From

 

Silver

 

Length

 

From

 

 

 

(gpt)

 

(meters)

 

(meters)

 

(opt)

 

(feet)

 

(feet)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-291

 

90.3

 

7.2

 

14.1

 

2.6

 

23.6

 

46.3

 

And

 

271.3

 

2.9

 

41.5

 

7.9

 

9.5

 

136.2

 

Including

 

1,410.0

 

0.5

 

43.9

 

41.1

 

1.6

 

144.0

 

And

 

410.3

 

3.0

 

65.6

 

12.0

 

9.8

 

215.2

 

Including

 

692.0

 

1.7

 

65.6

 

20.2

 

5.6

 

215.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-292

 

106.2

 

5.8

 

27.5

 

3.1

 

19.0

 

90.2

 

And

 

507.0

 

0.9

 

43.9

 

14.8

 

3.0

 

144.0

 

And

 

83.8

 

4.4

 

76.3

 

2.4

 

14.4

 

250.3

 

Including

 

453.0

 

0.5

 

77.1

 

13.2

 

1.6

 

253.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-296

 

149.0

 

7.2

 

27.3

 

4.3

 

23.6

 

89.6

 

Including

 

297.0

 

3.1

 

30.5

 

8.7

 

10.2

 

100.1

 

And

 

118.8

 

12.6

 

100.0

 

3.5

 

41.3

 

328.1

 

Including

 

441.8

 

2.3

 

101.8

 

12.9

 

7.5

 

334.0

 

 

Drilling Returns Deep Mineralization at El Gallo

(Fig. 1, 2 and 3)

 

Drilling 300 m (985 ft) southeast of the El Gallo resource has intersected the deepest occurrence of silver mineralization to date. Starting 240 m (790 ft) below surface, this mineralization is believed to be the continuation of the El Gallo deposit. This result is encouraging because it demonstrates the host rock is thickening to the east and southeast and that there is good potential to find additional resources below the currently planned pit design.

 

Hole #

 

Silver

 

Length

 

From

 

Silver

 

Length

 

From

 

 

 

(gpt)

 

(meters)

 

(meters)

 

(opt)

 

(feet)

 

(feet)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GZX-007

 

131.2

 

8.1

 

237.9

 

3.8

 

26.6

 

780.5

 

Including

 

484.0

 

1.0

 

244.0

 

14.1

 

3.3

 

800.5

 

 

Exploration Builds on Palmarito Resource

(Fig. 1, 4, 5 and 6)

 

US Gold is currently carrying out an extensive drill program at Palmarito, consisting of 70 core holes. The purpose is to 1) expand the known mineralization, including the new Southwest Zone and, 2) infill large gaps in the resource, where no inferred mineralization exists.  All of the current drilling is focused on near surface, open pit mineralization.

 

2



 

Holes PMX-064, PMX-066, PMX-067 and PMX-070 focused on growing the size of the new Southwest Zone. These holes were successful, extending the mineralization to the south by 30 m (100 ft) and at depth by 30 m (100 ft). Holes PMX-069 and PMX-071 were drilled to infill gaps in the resource, with both encountering good intersections of mineralization. These holes should help grow the size of the resource and further reduce the low strip ratio (1:1.2) that was outlined in the Preliminary Economic Assessment. US Gold’s geologists believe there are promising extensional targets at Palmarito where additional near surface mineralization can be discovered.

 

Hole #

 

Silver

 

Gold

 

Length

 

From

 

Silver

 

Gold

 

Length

 

From

 

 

 

(gpt)

 

(gpt)

 

(meters)

 

(meters)

 

(opt)

 

(opt)

 

(feet)

 

(feet)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-063

 

171.2

 

0.3

 

3.0

 

27.1

 

5.0

 

0.01

 

9.8

 

88.9

 

Including

 

587.0

 

0.7

 

0.5

 

29.0

 

17.1

 

0.02

 

1.6

 

95.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-064

 

75.9

 

 

5.4

 

61.8

 

2.2

 

 

17.7

 

202.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-066

 

91.4

 

0.1

 

5.2

 

63.3

 

2.7

 

0.003

 

17.1

 

207.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-067

 

283.0

 

0.5

 

4.4

 

59.9

 

8.3

 

0.01

 

14.4

 

196.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-069

 

123.7

 

0.6

 

11.5

 

30.0

 

3.6

 

0.02

 

37.7

 

98.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-070

 

328.0

 

 

1.3

 

44.4

 

9.6

 

 

4.3

 

145.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-071*

 

184.6

 

0.3

 

25.9

 

0.0

 

5.4

 

0.01

 

85.0

 

0.0

 

Including

 

959.0

 

0.4

 

1.8

 

0.0

 

28.0

 

0.01

 

5.9

 

0.0

 

Including

 

948.0

 

1.6

 

1.2

 

16.6

 

27.7

 

0.05

 

3.9

 

54.5

 

 


*Sample 0.0 m-1.8 m was collared in historical stockpiled material that is included in the resource. This sample returned grades 450% higher than was modeled, possibly increasing the grade associated with this material.

 

Haciendita - New Discovery Showing Early Potential

(Fig. 1)

 

Haciendita is a new discovery that was announced on March 8, 2011. The two best holes from the initial ten returned 2.1 gpt gold, 31.1 gpt silver over 16.4 m and 1.0 gpt gold, 16.4 gpt silver over 34.1 m.  Follow up exploration has successfully extended the discovery to the northeast by 60 m (200 ft), where drilling continues to encounter wide intersections of mineralization. The discovery has now been traced over an area 125 m (410 ft) x 175 m (575 ft). The mineralization discovered to date is shallow, starting an average 30 m (100 ft) below surface.  An additional 10 holes have been completed with assays pending.

 

3



 

Hole #

 

Gold

 

Silver

 

Length

 

From

 

Gold

 

Silver

 

Length

 

From

 

 

 

(gpt)

 

(gpt)

 

(meters)

 

(meters)

 

(opt)

 

(opt)

 

(feet)

 

(feet)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-014

 

1.1

 

13.5

 

21.8

 

70.4

 

0.03

 

0.4

 

71.5

 

231.0

 

Including

 

4.0

 

43.0

 

2.8

 

72.0

 

0.12

 

1.3

 

9.2

 

236.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-015

 

1.8

 

33.9

 

17.8

 

62.2

 

0.05

 

1.0

 

58.4

 

204.1

 

Including

 

1.6

 

109.7

 

2.7

 

66.6

 

0.05

 

3.2

 

8.9

 

218.5

 

Including

 

5.6

 

18.3

 

2.0

 

75.3

 

0.16

 

0.5

 

6.6

 

247.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-016

 

1.1

 

30.3

 

28.3

 

27.8

 

0.03

 

0.9

 

92.8

 

91.2

 

Including

 

3.4

 

24.7

 

3.1

 

27.8

 

0.10

 

0.7

 

10.2

 

91.2

 

Including

 

2.6

 

104.6

 

4.1

 

52.0

 

0.08

 

3.1

 

13.5

 

170.6

 

 

ABOUT US GOLD (www.usgold.com)

 

US Gold’s objective is to qualify for inclusion in the S&P 500 by 2015. US Gold explores for gold and silver in the Americas and is advancing its El Gallo Project in Mexico and its Gold Bar Project in Nevada towards production. US Gold has a strong treasury with approximately $115 million in cash and gold and silver bullion. The Company’s shares are listed on the New York (NYSE) and the Toronto Stock Exchange (TSX) under the symbol UXG, trading 1.6 million shares daily during the past twelve months. US Gold’s shares are included in S&P/TSX and Russell indices and Van Eck’s Junior Gold Miners ETF.

 

This news release has been viewed and approved by John Read, CPG, US Gold’s consulting geologist, who is a Qualified Person as defined by National Instrument 43-101 and is responsible for program design and quality control of exploration undertaken by the Company at its Mexican exploration properties.

 

Samples from the core drilling were split on-site at the Company’s Magistral Mine property.  One quarter of the split drill core was shipped to ALS Chemex for sample preparation and analysis by 4-acid digestion with ICP determination for silver and fire assay for gold. Samples returning greater than 1500 ppm silver or 10 ppm gold were re-analyzed using gravimetric fire assay. Standards and blanks were inserted every 20 samples.

 

All holes were drilled with HQ bits and reduced to NTW where required. Samples were taken based on lithologic and/or mineralized intervals and vary in length. The true width of the mineral zone has not been determined.

 

Certain statements contained herein and subsequent oral statements made by and on behalf of the Company may contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements may be identified by words such as “intends,” “anticipates,” “believes,” “expects” and “hopes” and include, without limitation, statements regarding the Company’s results of exploration, plan of business operations, potential contractual arrangements, receipt of working capital, anticipated revenues and related expenditures. Factors that could cause actual results to differ materially include, among others, those set forth in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2010 and other filings with the Securities and Exchange Commission, under the caption “Risk Factors”. Most of these factors are outside the control of the Company. Investors are cautioned not to put undue reliance on forward-looking statements. Except as otherwise required by applicable securities statutes or regulations, the Company disclaims any intent or obligation to update publicly these forward looking statements, whether as a result of new information, future events or otherwise.

 

For further information contact:

 

 

 

Ian J. Ball

Mailing Address

Senior Vice-President

99 George Street, 3rd Floor

Tel: (647) 258-0395

Toronto, ON M5A 2N4

Toll Free: (866) 441-0690

E-mail: info@usgold.com

Fax: (647) 258-0408

 

 

4



 

Table 1. El Gallo District Drill Results: Core Holes Assays

April 26, 2011

 

Hole #

 

Silver

 

Gold

 

Length

 

From

 

Azimuth

 

Dip

 

Easting

 

Northing

 

 

 

(gpt)

 

(gpt)

 

(meters)

 

(meters)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

El Gallo

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-291

 

90.3

 

 

7.2

 

14.1

 

350°

 

-45°

 

212023

 

2843369

 

And

 

271.3

 

 

2.9

 

41.5

 

 

 

 

 

 

 

 

 

Including

 

1410.0

 

 

0.5

 

43.9

 

 

 

 

 

 

 

 

 

And

 

410.3

 

 

3.0

 

65.6

 

 

 

 

 

 

 

 

 

Including

 

692.0

 

 

1.7

 

65.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-292

 

106.2

 

 

5.8

 

27.5

 

350°

 

-60°

 

212050

 

2843159

 

And

 

507.0

 

 

0.9

 

43.9

 

 

 

 

 

 

 

 

 

And

 

83.8

 

 

4.4

 

76.3

 

 

 

 

 

 

 

 

 

Including

 

453.0

 

 

0.5

 

77.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-293

 

 

 

 

 

170°

 

-45°

 

211840

 

2843043

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-294

 

36.5

 

 

7.2

 

0.0

 

170°

 

-60°

 

211854

 

2842982

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-295

 

37.9

 

 

6.4

 

0.0

 

350°

 

-50°

 

212094

 

2843442

 

And

 

52.5

 

 

6.4

 

35.6

 

 

 

 

 

 

 

 

 

And

 

93.5

 

 

2.3

 

96.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAX-296

 

149.0

 

 

7.2

 

27.3

 

350°

 

-60°

 

212415

 

2843249

 

Including

 

297.0

 

 

3.1

 

30.5

 

 

 

 

 

 

 

 

 

And

 

118.8

 

 

12.6

 

100.0

 

 

 

 

 

 

 

 

 

Including

 

441.8

 

 

2.3

 

101.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

El Gallo Gold Zone

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GZX-005

 

7.1

 

2.3

 

1.7

 

10.6

 

160°

 

-50°

 

212712

 

2842990

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GZX-006

 

 

 

 

 

160°

 

-50°

 

212725

 

2843034

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GZX-007

 

131.2

 

 

8.1

 

237.9

 

160°

 

-75°

 

212689

 

2842999

 

Including

 

484.0

 

 

1.0

 

244.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Haciendita

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-011

 

 

 

 

 

250°

 

-60°

 

217402

 

2852198

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-012

 

34.8

 

1.1

 

1.1

 

59.2

 

250°

 

-55°

 

217460

 

2852076

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-013

 

23.7

 

0.9

 

5.0

 

65.6

 

250°

 

-50°

 

217486

 

2852049

 

Including

 

134.0

 

5.7

 

0.6

 

70.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-014

 

13.5

 

1.1

 

21.8

 

70.4

 

250°

 

-45°

 

217512

 

2852111

 

Including

 

43.0

 

4.0

 

2.8

 

72.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-015

 

33.9

 

1.8

 

17.8

 

62.2

 

250°

 

-50°

 

217531

 

2852163

 

Including

 

109.7

 

1.6

 

2.7

 

66.6

 

 

 

 

 

 

 

 

 

Including

 

18.3

 

5.6

 

2.0

 

75.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HCX-016

 

30.3

 

1.1

 

28.3

 

27.8

 

250°

 

-50°

 

217492

 

2852180

 

Including

 

24.7

 

3.4

 

3.1

 

27.8

 

 

 

 

 

 

 

 

 

Including

 

104.6

 

2.6

 

4.1

 

52.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Palmarito

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-060

 

84.7

 

 

2.2

 

91.8

 

100°

 

-55°

 

200979

 

2830446

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-061

 

 

 

 

 

100°

 

-50°

 

200975

 

2830499

 

 

5



 

Hole #

 

Silver

 

Gold

 

Length

 

From

 

Azimuth

 

Dip

 

Easting

 

Northing

 

 

 

(gpt)

 

(gpt)

 

(meters)

 

(meters)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-062

 

 

 

 

 

100°

 

-60°

 

200977

 

2830527

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-063

 

171.2

 

0.3

 

3.0

 

27.1

 

120°

 

-60°

 

200988

 

2830568

 

Including

 

587.0

 

0.7

 

0.5

 

29.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-064

 

75.9

 

 

5.4

 

61.8

 

290°

 

-60°

 

201021

 

2830335

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-065

 

103.5

 

0.2

 

2.5

 

67.7

 

290°

 

-70°

 

201001

 

2830305

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-066

 

91.4

 

0.1

 

5.2

 

63.3

 

290°

 

-70°

 

200996

 

2830290

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-067

 

283.0

 

0.5

 

4.4

 

59.9

 

290°

 

-75°

 

200975

 

2830268

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-068

 

46.1

 

0.5

 

2.2

 

27.0

 

180°

 

-75°

 

201159

 

2830640

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-069

 

123.7

 

0.6

 

11.5

 

30.0

 

180°

 

-75°

 

201196

 

2830646

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-070

 

328.0

 

 

1.3

 

44.4

 

280°

 

-70°

 

200957

 

2830231

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PMX-071

 

184.6

 

0.3

 

25.9

 

0.0

 

180°

 

-45°

 

201220

 

2830602

 

Including

 

959.0

 

0.4

 

1.8

 

0.0

 

 

 

 

 

 

 

 

 

Including

 

948.0

 

1.6

 

1.2

 

16.6

 

 

 

 

 

 

 

 

 

 

6



 

 

7



 

 

8



 

 

9



 

 

10



 

 

11



 

 

12