MAG Silver Corporation

Published : January 08th, 2010

Extends Molybdenum-Gold Zone at Cinco De Mayo

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January 8, 2010

MAG Silver Extends Molybdenum-Gold Zone at Cinco De Mayo

0.16% molybdenum with 0.27 grams per tonne gold over 43.97 metres

VANCOUVER, BRITISH COLUMBIA--(Marketwire - Jan. 8, 2010) - MAG Silver Corp. (TSX:MAG)(NYSE Amex:MVG) ("MAG") is pleased to announce additional gold and molybdenum assay results from on-going drilling of the Pozo Seco Moly-Gold zone discovery on its 100% owned Cinco de Mayo property in northern Chihuahua State, Mexico (see press releases of September 23 and November 10, 2009).

The best of the new holes in the Molybdenum-Gold ("Moly-Gold") zone is Hole 144 which reports 0.16% molybdenum ("Moly") with 0.27 grams per tonne (g/t) gold over 43.97 metres (30.38 to 74.35 metre depth). In addition holes 141 and 142 were drilled east of the Lucia Fault and also returned strong molybdenum and gold results. These combined holes demonstrate that the Moly-Gold zone continues to the northwest and remains open towards recently acquired ground. Holes 143, 145, and 152 were drilled southwest of the Lucia Fault and returned no significant values. Hole 148 was drilled east of the eastern bounding fault to the Moly-Gold zone. This new drilling has now identified a zone approximately 1,100 metres long by almost 350 metres wide averaging almost 50 metres in thickness and it remains open to the northwest.

Recent drilling has also discovered an emerging gold dominant zone adjacent to the Pozo Seco Molybdenum-Gold zone discovery. Hole CM09-150 is the best of these new gold-dominant holes, returning 27.50 g/t gold in a 0.30 metre zone lying at surface and containing abundant visible gold within an overall 4.41 metres (4.95 to 9.36 metre depth) grading 1.99 g/t gold. Hole 150 and adjoining Holes 153 and 123 (see press release of November 10, 2009) show only trace molybdenum in contrast to neighbouring holes on the northeast side of the major northwest-trending Lucia Fault, which appears to be the controlling factor for the strong molybdenum mineralization.

Gold mineralization appears to overprint the molybdenum zone along a perpendicular northeast-trending fault zone that continues to the southwest where a recent geochemical grid sampling at Pozo Seco South has revealed a 1 kilometre diameter area with highly anomalous gold, silver, copper, zinc, lead, arsenic, antimony and mercury values. This significant surface discovery represents a proximal metals signature and the area is coincident with a significant "hot spot" in the magnetic high anomaly that underlies the entire Pozo Seco area (see details below).

The holes reported here include thirteen holes out of a 20 hole, 2,000 metre program being drilled on a 200 metre grid centered on discovery Hole CM09-130 (75.2 metres of 0.31% Moly). An additional six holes are reported on an initial reconnaissance program focused on a series of strong jasperoid outcrops that run for 3 kilometres southeast of Pozo Seco. Two of these show greater than 1.5% zinc intercepts, but the rest reported no significant values. Details are provided below in Tables 1, 2 and 3 and Map 1.

Aggressive drilling with at least five rigs will resume the third week of January to continue defining the principal Moly-Gold zone, as well as tracing the new gold zone towards high-potential geochemical and geophysical targets at Pozo Seco South generated during late 2009.

"On-going drilling at Pozo Seco has added 400 metres of strike length to our potential stand-alone moly-gold zone and has identified a new, very near surface high-grade gold zone that extends off to the southwest towards a large multi-element geochemical anomaly" said Dan MacInnis, MAG Silver President. "The gold and moly were clearly introduced at separate times across overlapping and repeatedly reactivated structural zones. The newly recognized near-by multi-element geochemical anomaly that coincides with a very strong underlying magnetic anomaly may reflect one of the major mineralization centres we have been seeking and we will be drilling it immediately."

MAG is also pleased to announce acquisition of a 150.8 hectare claim which lies directly along the north western projection of the Pozo Seco Molybdenum-Gold zone and completes control of the north western extension of Pozo Seco.

Table 1.0 Highlights from Pozo Seco Moly-Gold Zone
HoleID:                        From     To Interval Moly  Moly  Gold
                             metres metres   metres  ppm     %   g/t
CM09-141                       0.00  64.85    64.85 1006 0.101  0.18
Including                     48.98  64.85    15.87 1672 0.167  0.35
Including                     60.73  64.85     4.12 4318 0.432  0.52
CM09-142                       3.25  42.62    39.37 1163 0.116  0.15
Including                     23.78  30.46     6.68 2212 0.221  0.21
Including                     35.58  42.62     7.04 1289 0.129  0.22
CM09-143  No Significant Intercepts
CM09-144                      30.38  74.35    43.97 1590 0.159  0.27
Including                     34.08  39.34     5.26 1873 0.187  0.59
Including                     62.79  67.20     4.41 4260 0.426  0.23
Including                     64.80  74.35     9.55 1560 0.156  0.47
CM09-145  No Significant Intercepts
CM09-146                      42.75  47.77     5.02  693 0.069  0.04
CM09-147                      69.80  73.15     3.35 2100 0.210  0.02
CM09-148  No significant intercepts
CM09-149  No significant intercepts
CM09-150                       4.95   9.36     4.41   39 0.004  1.99
including                      4.95   5.25     0.30   10 0.001 27.50
CM09-152  No significant intercepts
CM09-153                      95.87 112.46    16.59   96 0.010  0.42


Additional drilling, Cinco de Mayo Project

Six additional holes have been completed recently along the 3 kilometre long band of jasperoid outcrops that extend southeast from the Pozo Seco. Holes 151, 154 and 155 to 158 were drilled between 500 and 3,500 metres from Pozo Seco. Hole 155 reported significant values: 2.19 metres (8.06 to 10.25 metre depth) ran 0.33 grams gold, with the subsequent intercept (10.25 to 11.29 metre depth) running 1.54% zinc. The remaining four holes had no significant results.

Table 2.0 Highlights from Jasperoid Zone drilling
HoleID:                        From     To Interval Moly  Moly  Gold
                             metres metres   metres  ppm     %   g/t
CM09-151  No significant intercepts
CM09-154  No significant intercepts
CM09-155                       8.06  10.25     2.19   33 0.003  0.33
CM09-155                      10.25  11.29     1.04   20 0.002  0.10
CM09-156  No significant intercepts
CM09-157                      28.33  28.79     0.46    4   0.0  0.08
CM09-158  No significant intercepts


Geochemical Sampling, Pozo Seco South:

A systematic geochemical sampling program was begun in late 2009 on several outcrop areas south and south west of the Pozo Seco moly-gold zone. Over 200 samples have been taken to date, for which assays have been received for about 150. Most of the results come from a 1 kilometre diameter alluvium-surrounded outcrop area lying about 1250 metres southwest of Hole 150 along the projection of the gold trend. This area sits directly above a high on the strong positive magnetic anomaly that underlies the entire Pozo Seco zone and is believed to reflect an underlying intrusive body. The area is laced with northwest-trending structures, many of which are silicified and some of which contain 20-50 cm thick galena and tennantite-bearing barite veins. The area shows consistently high gold, silver, copper, zinc, lead, arsenic, antimony and mercury values (Table 3.0) and drilling here will be undertaken immediately on rigs returning to the project.

Table 3.0. Summary of results from Surface Geochemical Sampling (N = greater than 150)

Gold: Maximum of 4.38 grams per tonne; 18 samples exceed 0.66 g/t
Silver: Maximum of 47.1 grams per tonne; 18 samples exceed 10 g/t
Lead: Maximum of 78,600 ppm (7.8%); 35 samples exceed 2,500 ppm (0.25%)
Copper: Maximum of 31,000 ppm (3.1%); 15 samples exceed 2,000 ppm (0.2%)
Zinc: Maximum of 94,600 ppm (9.46%); 62 samples exceed 5,000 ppm (0.5%)
Arsenic: Maximum of 1,745 ppm; 1 sample exceeds 500 ppm
Antimony: Maximum of 211 ppm; 4 samples exceed 75 ppm
Mercury(i): Maximum of 19 ppm; 51 samples exceed 1 ppm
(i)Mercury was only analyzed for the first 100 samples.


About Pozo Seco:

Pozo Seco (Dry Well) lies above a strong 2 by 3 kilometres positive magnetic-high anomaly lying 4 kilometres southwest of the Jose Manto (silver, lead, zinc). To date, sixteen vertical and two angle holes have been drilled into molybdenum-gold or gold mineralization, starting at or near the surface, in a broad, gently east-dipping, breccia developed along the strong northwest-trending Lucia Fault zone. The molybdenum mineralization gives way abruptly to gold mineralization at the southeast end of the zone, but remains open to northwest.

Hole CM-87, drilled 900 metres north of the northernmost hole (CM-144) in the Pozo Seco Moly-Gold zone was drilled just east of the projection of the Lucia Fault. CM-87 reported 19.50 metres grading 0.30 grams gold and .04% molybdenum which strongly suggests the Pozo Seco zone continues significantly farther to the northwest.

Diagrams can be found on the website

Quality Assurance and Control: The Company has in place a quality control program to ensure best practices in sampling and analysis. Samples were collected by employees of consulting firm Minera Cascabel S.A. de C.V. on behalf of MAG Silver Corp. The surface rock samples are shipped directly in security sealed bags to ALS-Chemex Laboratories preparation facilities in Hermosillo, Sonora or Chihuahua City (Certification ISO 9001). Sample pulps are shipped from there to ALS-Chemex Laboratories in North Vancouver, Canada for analysis. All samples were assayed for gold by standard fire assay-ICP finish with a 50 gram charge. Gold values in excess of 3.00 g/t were re-analyzed by fire assay with gravimetric finish for greater accuracy. Silver, zinc, copper and lead values in excess of 100 ppm, 1%, 1% and 1% respectively are also repeated by fire assay.

Qualified Person: Dr. Peter Megaw, Ph.D., C.P.G., has acted as the qualified person as defined in National Instrument 43-101 for this disclosure and supervised the preparation of the technical information in this release. Dr. Megaw has a Ph.D. in geology and more than 20 years of relevant experience focussed on silver and gold mineralization, and exploration and drilling in Mexico. He is a certified Professional Geologist (CPG 10227) by the American Institute of Professional Geologists and an Arizona registered geologist (ARG 21613). Dr. Megaw is not independent as he is a Director and Shareholder of MAG and is the vendor of this project, whereby he may receive additional shares. Dr. Megaw is satisfied that the results are verified based on an inspection of the core, a review of the sampling procedures, the credentials of the professionals completing the work and the visual nature of the silver and base metal sulphides within a district where he is familiar with the style and continuity of mineralization.

About MAG Silver Corp. ( )
MAG is focused on district scale projects located within the Mexican Silver Belt. Our mission is to become one of the premier companies in the silver mining industry. MAG and its partner Fresnillo plc are delineating a significant new silver vein discovery on the Juanicipio property in Zacatecas State, Mexico. The total contained metals at the Juanicipio property on a 100% project basis in the Indicated Resource are 83 million ounces of silver, 210,000 ounces of gold and 155 million pounds of lead and 269 million pounds of zinc. The Inferred Resources contain an additional 106 million ounces of silver, 356,000 ounces of gold and 301 million pounds of lead and 498 million pounds of zinc. MAG has also identified a silver, lead and zinc discovery at its 100% owned Cinco de Mayo property as well as a Moly-Gold discovery on the same property. MAG is based in Vancouver, British Columbia, Canada. MAG's common shares trade on the TSX under the symbol MAG and on the NYSE-A under the symbol MVG.

On behalf of the Board of MAG SILVER CORP.

Dan MacInnis, President and CEO

This release includes certain statements that may be deemed to be "forward-looking statements" within the meaning of the US Private Securities Litigation Reform Act of 1995. All statements in this release, other than statements of historical facts are forward looking statements including statements, including statements that address future mineral production, reserve potential, exploration drilling, exploitation activities and events or developments. Forward-looking statements are often, but not always, identified by the use of words such as "seek", "anticipate", "plan", "continue", "estimate", "expect", "may", "will", "project", "predict", "potential", "targeting", "intend", "could", "might", "should", "believe" and similar expressions. These statements involve known and unknown risks, uncertainties and other factors that may cause actual results or events to differ materially from those anticipated in such forward-looking statements. Although MAG believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include, but are not limited to, changes in commodities prices, changes in mineral production performance, exploitation and exploration successes, continued availability of capital and financing, and general economic, market or business conditions, political risk, currency risk and capital cost inflation. In addition, forward-looking statements are subject to various risks, including that data is incomplete and considerable additional work will be required to complete further evaluation, including but not limited to drilling, engineering and socio-economic studies and investment. The reader is referred to the Company's filings with the SEC and Canadian securities regulators for disclosure regarding these and other risk factors. There is no certainty that any forward looking statement will come to pass and investors should not place undue reliance upon forward-looking statements.

To view the maps associated with this press release, please click on the following link:

Cautionary Note to U.S. Investors: The U.S. Securities and Exchange Commission permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. We use certain terms in this press release, such as "Inferred resources," that the SEC guidelines prohibit U.S. registered companies from including in their filings with the SEC.

Please Note: Investors are urged to consider closely the disclosures in MAG's annual and quarterly reports and other public filings, accessible through the Internet at and

Neither the Toronto Stock Exchange nor the American Stock Exchange has reviewed or accepted responsibility for the accuracy or adequacy of this news release, which has been prepared by management.



MAG Silver Corp.
Gordon Neal
VP Corp. Development
(604) 630-1399 or Toll free: (866) 630-1399
Fax: (604) 681-0894

INDUSTRY: Manufacturing and Production - Mining and Metals





MAG Silver Corporation

ISIN : CA55903Q1046
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MAG Silver is a silver development stage company based in Canada.

MAG Silver holds various exploration projects in Mexico.


MAG Silver is listed in Canada, in Germany and in United States of America. Its market capitalisation is CA$ 1.1 billions as of today (US$ 909.2 millions, € 796.4 millions).

Its stock quote reached its lowest recent point on August 13, 2004 at CA$ 0.54, and its highest recent level on October 12, 2023 at CA$ 14.08.

MAG Silver has 80 760 000 shares outstanding.

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In the News and Medias of MAG Silver Corporation
4/2/2006Follow up N° 2
Annual reports of MAG Silver Corporation
2011 Annual Results
Reports 2009 Annual Results
Financings of MAG Silver Corporation
2/23/2016Announces US$65 Million Bought Deal Financing
Nominations of MAG Silver Corporation
6/20/2013Appoints George Paspalas as President and CEO
Financials of MAG Silver Corporation
5/12/2016Reports First Quarter Financial Results
8/14/2015Reports Second Quarter Financial Results
11/14/2013Reports Third Quarter Financial Results
8/15/2013Reports Second Quarter Financial Results
5/15/2013Reports First Quarter Financial Results
8/14/2012Reports Second Quarter Financial Results
5/15/2012Reports First Quarter Financial Results
8/15/2011Reports Second Quarter Financial Results
4/1/2011MAG Silver Reports 2010 Annual Results
5/17/2010Reports First Quarter Financial Results
11/16/2009Reports Third Quarter Financial Results
8/15/2009Reports Second Quarter Financial Results
5/16/2009 Reports First Quarter Financial Results
Project news of MAG Silver Corporation
2/17/2014Development & Exploration Update
5/28/2013Options Salamandra Project From Canasil
7/18/2012(Cinco De Mayo)Drills 61.6 Metre Silver, Gold, Zinc, Lead, Copper Massive S...
3/22/2012(Cinco De Mayo)Intercepts More Silver / Lead / Zinc Sulphides in "Bridge Zo...
12/19/2011(Juanicipio)Announces Additional Silver and Gold in Updated Juanicipio R...
11/28/2011(Cinco De Mayo)Announces Seven New Silver/Lead/Zinc Sulphide Intercepts at ...
9/2/2011(Juanicipio)Confirms New Structure in Drilling at Juanicipio
7/22/2011(Juanicipio)Provides Update on Juanicipio Joint Venture
3/29/2011(Cinco De Mayo)Announces Silver-Zinc-Lead Sulphide Veins Near Skarn at Cinc...
2/28/2011(Juanicipio)Announces High-Grade Juanicipio Vein Intercept
1/19/2010Discovers Veta Grande Vein Extension & Cuts High-Grade Silve...
1/8/2010(Cinco De Mayo)Extends Molybdenum-Gold Zone at Cinco De Mayo
11/10/2009(Cinco De Mayo)Expands High-Grade Molybdenum and Adds Significant Gold at C...
9/23/2009(Cinco De Mayo) Discovers High Grade Molybdenum With Gold at Cinco De Mayo
9/14/2009(Juanicipio)MAG Silver Reports on Juanicipio Scoping Study-Valdecanas "S...
7/10/2009(Juanicipio)Reports on the Juanicipio Joint Venture
2/24/2009(Juanicipio)Reports First Indicated Resource at Valdecanas, Juanicipio J...
1/8/2009(Juanicipio)Reports Discovery of New High Grade Encino Vein at Juanicipi...
9/18/2008(Cinco De Mayo)Expands Silver / Lead / Zinc Mineralization At Cinco De Mayo
7/28/2008(Juanicipio)Reports High Grade Silver on East End of Valdeca=F1as Vein
7/16/2008(Juanicipio)Reports Deep Intersection of High Grade Silveron Valdeca=F1a...
7/8/2008(Cinco De Mayo)Expands "Jose Manto" At Cinco De Mayo With New High Grade Si...
Corporate news of MAG Silver Corporation
8/19/2016Research Reports Initiated on Silver Stocks Excellon Resourc...
6/16/2016MAG Reports NYSE MKT Ticker Change and AGSM Results
5/13/2016MAG Silver Adopts New Shareholder Rights Plan to Replace Exi...
5/12/2016MAG Silver Reports First Quarter Financial Results
5/6/2016Primary Capital Retained By RMB Australia Holdings Limited
3/30/2016MAG Silver Reports 2015 Annual Results
12/24/2015MAG Silver Files Preliminary Base Shelf Prospectus
12/23/2015MAG Silver Files Preliminary Base Shelf Prospectus
12/15/2015MAG Silver Reports New Gold and Additional Zinc Mineralizati...
10/15/2015MAG Silver (MVG) in Focus: Stock Moves 6.4% Higher
8/14/2015MAG Silver Reports Second Quarter Financial Results
8/14/2015Mag Silver reports 2Q loss
4/23/2015Widest Intercepts to Date Extend High-Grade Valdecañas Vein ...
4/23/2015IIROC Trade Resumption - MAG
4/23/2015MAG Silver Corp.: Widest Intercepts to Date Extend High-Grad...
4/23/2015IIROC Trading Halt - MAG
3/30/2015MAG Silver Reports 2014 Annual Results
6/27/2014Canada Stocks to Watch: Encana, First Quantum, Descartes and...
10/28/2013(Juanicipio)Announces Start of Juanicipio Underground Development
10/15/2013Welcomes George Paspalas as President, CEO and Director
6/19/2013Reports Voting Results from Its Annual General and Special M...
4/1/2013Reports 2012 Annual Results and Personnel Changes
10/5/2012Reports Results of the Annual General and Special Meeting of...
10/3/2012(Cinco De Mayo)Reports Initial Mineral Resource Estimate at Cinco de Mayo
9/5/2012Closes C$33.1 Million Private Placement
8/24/2012Announces Meeting and Record Date and Approval of Advance No...
8/22/2012Announces Approximately C$25 Million Private Placement
6/14/2012(Juanicipio)Reports Juanicipio Updated PEA Study Prepared by AMC
2/22/2012Announces Silver/Lead/Zinc Intercepts at La Esperanza
1/23/2012(Juanicipio)Plans Increased Exploration at Juanicipio and Cinco De Mayo
9/16/2011Reports Results of the Annual General and Special Meeting of...
5/12/2011MAG Provides Update on Favourable ICC Arbitration Decision a...
5/12/2011Provides Update on Favourable ICC Arbitration Decision and C...
5/5/2011Reports on Favourable ICC Arbitration Decision
12/1/2010MAG Silver Announces Juanicipio Resource Estimation and Expl...
4/19/2010Gold & Molybdenum Assay Results From On-Going Drilling
1/25/2010Globe & MAIL - Bullish on MAG Silver
7/15/2009Options San Ramone Property, Zacatecas
6/23/2009Responds to Fresnillo Decision to Withdraw "Take-Under" Bid
6/5/2009Provides Exploration Update for Salemex and Four Other Mexic...
5/20/2009 Reports Excellent Metallurgical Recoveries
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