Minera Andes Announces Discovery of 5 Kilometres of New High-Grade Gold/Silver Veins at San Jose Mine
TORONTO, ONTARIO -- (Marketwire) -- 10/07/10 -- Minera Andes Inc. (the 'Corporation' or 'Minera Andes') (TSX: MAI)(OTCBB: MNEAF) is pleased to announce the discovery of nine new high-grade gold/silver veins plus important extensions of two other veins, which together total more than five kilometres in strike length. The discoveries represent significant exploration progress at San Jose where the total strike length of all the previously known veins totalled approximately 17 kilometres. The new veins are located primarily between the Kospi and Frea veins, and can be accessed from existing mine workings (see Exhibit 1).
Rob McEwen, Chairman and CEO of Minera Andes, said:
'We are very excited by the discovery of the new veins at the San Jose mine. The drilling results demonstrate that the area in and around the San Jose mine is extremely prospective, and we anticipate these new veins will significantly extend the mine life. Recent events such as the $3.6 billion bid for Andean's nearby Cerro Negro property highlight the world class potential of this emerging gold/silver district.'
Selected assay results for three of the most promising new veins are shown below. The complete assay results for the new veins and vein extensions are provided in Exhibit 2. All of the drilling reported in this press release was completed during 2010. The assays reported below and in Exhibit 2 were analyzed by Alex Stewart Argentina SA laboratory in Mendoza, Argentina, and received up until August 25th 2010. The widths shown below are true widths (normal to the dip of the vein). Longitudinal sections of the new veins and extensions are provided in Exhibit 3.
-- Micaela Vein - 1,380 meter strike length, cut by 36 diamond drill holes.
Hole SJD-708 - 2.45 m (meters) at 8.33 g/t (grams/tonne) Au
and 1,484 g/t Ag
Hole SJD-786 - 1.09 m at 33.50 g/t Au and 2752 g/t Ag
Hole SJD-807 - 0.53 m at 31.02 g/t Au and 629 g/t Ag
-- Sofia Vein - 600 meter strike length, cut by 20 diamond drill holes.
Hole SJD-477 - 1.52 m at 7.71 g/t Au and 885 g/t Ag
Hole SJD-486 - 10.13 m at 14.96 g/t Au and 1096 g/t Ag
Hole SJD-491 - 5.45 m at 13.54 g/t Au and 206 g/t Ag
Hole SJD-726 - 1.72 m at 10.94 g/t Au and 1255 g/t Ag
-- Antonella Vein - 870 meter strike length, cut by 13 diamond drill holes.
Hole SJD-524 - 5.30 m at 13.43 g/t Au and 199 g/t Ag
The following table provides a summary of new veins and extensions, the number of drill holes used to define the veins and the strike length of each. Complete assay data is provided in Exhibit 2.
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Vein Number of Holes Strike Length (meters)
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Micaela 36 1380
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Sofia 20 600
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Antonella 13 870
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Dos Lauras 11 400
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Ayelen Extension 12 580
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Marta 15 510
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Ramal Frea 450 Extension 17 430
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Shala 4 134
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Pacha 7 180
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Mara 5 150
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Hera 8 235
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The discoveries are a direct result of a significant increase in the exploration effort at San Jose compared to previous years. From the start of 2010 through September 25, 2010, a total of 47,431 meters have been completed in 233 diamond core holes, nearly double the drilling undertaken in 2009. The success of the current drilling is in large part a result of extensive surface geophysical surveys conducted during 2009 and 2010 that led to the development of the targets drilled this year. The geophysics consisted of 181 line-kilometres of induced polarity ('IP')/resistivity, 55 line-kilometres of magnetics and 11 line-kilometres of pole-dipole IP. An updated 43-101 Report scheduled to be completed in the near future is being prepared that will contain full details of the 2010 and 2009 drilling.
A significant portion of the property continues to be open at depth and laterally. The discovery of the Micaela-Sofia vein system, which trends approximately east-west, is especially important because its orientation is different from the typical northwest trend of all the other veins at San Jose. The discovery of this system, which does not outcrop, will be used as an exploration guide to open up new exploration opportunities on the property. In addition, exploration drilling is continuing to expand resources in the known veins, including Ayelen and Odin, and exploration is also continuing in other areas of the property, such as the Saavedra and Aguas Vivas targets.
The Mineral Reserves and Resources for the San Jose mine as at December 31, 2009 were audited by P&E Mining Consultants and reported in the Corporation's 2009 Annual Report (AIF), and are given in the following table.
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Resource Category Tonnes Ag g/t Au g/t AgEq g/t AgEq M oz
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Measured 692,000 527 9.11 1,074 23.86
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Indicated 1,953,000 463 6.78 870 54.60
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Meas. + Ind. 2,645,000 480 7.39 923 78.46
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Inferred 2,002,000 310 4.98 609 39.20
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Reserve Category Tonnes Ag g/t Au g/t AgEq g/t AgEq M oz
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Proven 618,000 457 7.66 917 18.21
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Probable 902,000 452 7.09 877 25.44
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Prov. + Prob. 1,520,000 454 7.32 893 43.67
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None of the new veins are included in the December 31, 2009 resource or reserve estimate. An updated 43-101 Technical Report to be completed in the near future will include updated resource estimates including the new veins.
About Minera Andes Minera Andes is an exploration company exploring for gold, silver and copper in Argentina with three significant assets: A 49% interest in Minera Santa Cruz SA, owner of the San Jose Mine in close proximity to Andean Resources' Cerro Negro project; 100% ownership of the Los Azules copper deposit with an inferred mineral resource of 10.3 billion pounds of copper and an indicated resource of 2.2 billion pounds of copper; and, 100% ownership of a portfolio of exploration properties bordering Andean's Cerro Negro project in Santa Cruz Province. The Corporation had $8 million USD in cash as at June 30th 2010 with no bank debt. Rob McEwen, Chairman and CEO, owns 33% of the company.
About Minera Santa Cruz Minera Santa Cruz SA is a joint venture owned 51% by Hochschild Mining Argentina, a wholly owned subsidiary of Hochschild Mining plc, and 49% by Minera Andes S.A., a wholly owned subsidiary of the Corporation. The joint venture owns and operates the San Jose property.
About Hochschild Mining plc Hochschild Mining plc is a leading precious metals company listed on the London Stock Exchange (HOCM.L / HOC LN) with a primary focus on the exploration, mining, processing and sale of silver and gold. Hochschild has over forty years of experience in the mining of precious metal epithermal vein deposits and currently operates four underground epithermal vein mines, three located in southern Peru, one in southern Argentina and one open pit mine in northern Mexico. Hochschild also has numerous long-term prospects throughout the Americas.
This news release has been submitted by Jim Duff, Chief Operating Officer of the Corporation. For further information, please contact Jim Duff or Daniela Ozersky or visit our Web site: www.minandes.com.
Technical Information
This news release has been reviewed and approved by Allen V. Ambrose, a Qualified Person as defined by National Instrument 43-101. Mr. Ambrose is a former officer and current member of the board of directors of Minera Andes. Assay results were reported to Minera Andes by MSC, which is the operating company for the San Jose joint venture. Assay results for the drilling were reviewed by Allen Ambrose. All samples were collected in accordance with industry standards. All drill core samples were submitted to Alex Stewart Argentina S.A laboratory in Mendoza, Argentina for fire assay and ICP analysis. Accuracy of results is tested through the systematic inclusion of standards, blanks and check assays. Allen Ambrose has reviewed the results of the check assays and other quality control measures.
The December 31, 2009 resource and reserve estimates were audited by P&E Mining Consultants to confirm that they are in compliance with NI 43-101 and CIM and that the employed methodologies have generated reliable estimates of tonnage and grade for the mineral assets stated in the Corporation's Annual Report (AIF) dated March 30, 2010. The audit was carried out by James L. Pearson P.Eng., Alfred Hayden P.Eng. and Fred Brown CPG PrSciNat under the direction of P&E Mining Consultants President Eugene Puritch, P.Eng. All of the named persons associated with P&E Mining Consultants are considered to be independent Qualified Persons under the NI 43-101 guidelines.
Cautionary Note to U.S. Investors:
All resource estimates reported by the Corporation are calculated in accordance with NI 43-101 and the Canadian Institute of Mining and Metallurgy Classification system. These standards differ significantly from the requirements of the U.S. Securities and Exchange Commission. Mineral resources that are not mineral reserves do not have demonstrated economic viability.
Caution Concerning Forward-Looking Statements:
This press release contains certain forward-looking statements and information. The forward-looking statements and information express, as at the date of this press release, the Corporation's plans, estimates, forecasts, projections, expectations or beliefs as to future events and results. Forward-looking statements involve a number of risks and uncertainties, and there can be no assurance that such statements will prove to be accurate. Therefore, actual results and future events could differ materially from those anticipated in such statements. Risks and uncertainties that could cause results or future events to differ materially from current expectations expressed or implied by the forward-looking statements include, but are not limited to, factors associated with fluctuations in the market price of precious metals, mining industry risks, risks associated with foreign operations, risks related to litigation, property title, the state of the capital markets, environmental risks and hazards, uncertainty as to calculation of mineral resources and reserves and other risks.
Readers should not place undue reliance on forward-looking statements or information. The Corporation undertakes no obligation to reissue or update forward-looking statements or information as a result of new information or events after the date hereof except as may be required by law. See the Corporation's Annual Information Form for additional information on risks, uncertainties and other factors relating to the forward-looking statements and information. All forward-looking statements and information made in this news release are qualified by this cautionary statement.
To view Exhibit 1 - Plan Map of San Jose Mine veins showing new veins in red, please visit the following link: http://media3.marketwire.com/docs/mai_10_07_2010_exhibit_1.pdf
Exhibit 2 - Complete Drilling Results to Date for the New Veins
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Inter- True
From To cept Width Au Ag
Drill Hole (m) (m) (m) (m)(i) (g/t) (g/t) Vein
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SJD-486 329.68 330.55 0.87 0.67 2.73 8 Micaela
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SJD-491 347.55 349.60 2.05 1.83 1.92 194 Micaela
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SJD-513 173.88 181.10 7.22 3.70 15.38 874 Micaela
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SJD-708 187.35 190.25 2.90 2.45 8.33 1484 Micaela
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SJD-709 159.42 160.85 1.43 1.21 7.27 640 Micaela
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SJD-710 144.37 145.35 0.98 0.87 3.28 161 Micaela
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SJD-726 191.00 191.95 0.95 0.81 0.81 15 Micaela
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SJD-727 232.80 234.00 1.20 0.99 0.75 26 Micaela
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SJD-728 65.10 66.80 1.70 0.99 1.00 106 Micaela
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SJD-732 154.37 154.80 0.43 0.22 26.07 1316 Micaela
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SJD-754 222.64 223.52 0.88 0.64 4.36 560 Micaela
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SJD-756 347.35 348.20 0.85 0.68 2.01 96 Micaela
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SJD-757 163.90 167.60 3.70 3.40 8.90 659 Micaela
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SJD-758 111.10 119.00 7.90 4.20 4.64 414 Micaela
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SJD-759 106.20 110.40 4.20 3.63 2.68 180 Micaela
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SJD-761 84.90 85.44 0.54 0.44 2.87 45 Micaela
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SJD-762 218.70 221.65 2.95 2.12 7.28 466 Micaela
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SJD-763 200.70 201.70 1.00 0.84 0.97 132 Micaela
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SJD-768 302.82 304.26 1.44 1.10 0.66 40 Micaela
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SJD-770 297.20 298.30 1.10 0.93 3.80 46 Micaela
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SJD-773 294.20 295.80 1.60 1.28 0.20 4 Micaela
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SJD-775 225.62 226.30 0.68 0.60 1.40 89 Micaela
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SJD-778 240.58 241.55 0.97 0.76 3.69 105 Micaela
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SJD-779 330.75 332.00 1.25 1.00 0.16 24 Micaela
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SJD-782 134.80 136.40 1.60 1.21 36.57 637 Micaela
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SJD-786 134.90 136.40 1.50 1.09 33.50 2752 Micaela
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SJD-787 259.70 261.40 1.70 1.25 21.64 824 Micaela
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SJD-792 119.80 120.15 0.35 0.24 0.01 71 Micaela
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SJD-793 57.95 58.95 1.00 0.53 0.83 19 Micaela
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SJD-797 120.45 121.50 1.05 0.76 8.33 214 Micaela
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SJD-798 147.50 148.17 0.67 0.46 4.61 172 Micaela
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SJD-800 239.38 240.17 0.79 0.58 6.56 204 Micaela
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SJD-802 227.00 227.80 0.80 0.61 1.22 70 Micaela
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SJD-805 205.73 206.75 1.02 0.78 0.04 1 Micaela
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SJD-806 208.20 209.00 0.80 0.65 0.43 18 Micaela
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SJD-807 87.98 88.58 0.60 0.53 31.02 629 Micaela
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SJD-473 253.62 254.92 1.30 1.00 1.52 218 Sofia
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SJD-477 128.90 130.83 1.93 1.52 7.71 885 Sofia
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SJD-479 253.99 255.30 1.31 1.09 0.08 1 Sofia
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SJD-484 425.88 427.37 1.49 0.98 0.09 1 Sofia
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SJD-486 246.72 262.36 15.64 10.13 14.96 1097 Sofia
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SJD-491 272.15 281.10 8.95 5.45 13.54 206 Sofia
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SJD-708 116.30 117.75 1.45 1.13 6.59 869 Sofia
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SJD-709 70.10 72.05 1.95 1.51 4.61 218 Sofia
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SJD-716 188.20 190.50 2.30 1.93 4.57 237 Sofia
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SJD-724 240.96 244.20 3.24 2.64 8.22 298 Sofia
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SJD-726 145.60 147.55 1.95 1.72 10.94 1255 Sofia
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SJD-727 191.55 192.15 0.60 0.51 4.71 510 Sofia
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SJD-768 161.53 162.80 1.27 0.81 2.00 364 Sofia
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SJD-770 134.87 137.44 2.57 1.60 1.40 136 Sofia
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SJD-778 176.30 176.87 0.57 0.40 0.01 4 Sofia
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SJD-779 253.96 255.90 1.94 1.61 13.68 70 Sofia
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SJD-781 150.87 151.80 0.93 0.67 1.46 111 Sofia
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SJD-793 228.80 229.65 0.85 0.34 0.01 5 Sofia
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SJD-803 118.30 119.20 0.90 0.64 0.01 31 Sofia
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SJD-814 257.00 257.75 0.75 0.53 1.24 10 Sofia
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HVD-42 109.01 109.85 0.84 0.71 1.93 77 Antonella
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SJD-524 172.35 178.90 6.55 5.30 13.43 199 Antonella
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SJD-729 102.30 103.00 0.70 0.60 4.50 243 Antonella
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SJD-738 87.60 88.70 1.10 0.99 0.01 1 Antonella
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SJD-739 214.07 215.00 0.93 0.78 0.01 5 Antonella
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SJD-742 113.58 115.00 1.42 1.40 0.09 6 Antonella
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SJD-752 193.30 194.75 1.45 1.22 0.01 1 Antonella
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SJD-753 222.45 223.40 0.95 0.82 0.01 1 Antonella
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SJD-755 228.43 229.55 1.12 0.95 0.01 1 Antonella
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SJD-805 114.77 115.58 0.81 0.71 4.16 548 Antonella
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SJM-112 126.95 127.25 0.30 0.26 7.74 1101 Antonella
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SJM-117 180.20 181.00 0.80 0.76 0.47 65 Antonella
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SJM-118 85.53 87.80 2.27 2.12 1.25 204 Antonella
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SJD-340 95.53 96.44 0.91 0.72 0.29 149 Dos Lauras
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SJD-386 128.20 128.75 0.55 0.42 1.86 119 Dos Lauras
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SJD-472 52.95 54.65 1.70 1.30 1.78 191 Dos Lauras
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SJD-473 222.55 225.73 3.18 2.53 1.73 170 Dos Lauras
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SJD-477 109.62 110.92 1.30 1.09 5.97 1146 Dos Lauras
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SJD-708 99.15 100.90 1.75 1.40 3.04 406 Dos Lauras
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SJD-716 160.35 163.90 3.55 3.03 3.81 135 Dos Lauras
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SJD-724 221.75 222.90 1.15 0.93 0.30 24 Dos Lauras
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SJD-726 120.48 121.45 0.97 0.82 1.49 326 Dos Lauras
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SJD-727 169.85 171.05 1.20 1.01 2.12 196 Dos Lauras
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SJD-778 94.35 97.95 3.60 2.58 4.38 619 Dos Lauras
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SJD-754 288.66 290.09 1.43 1.08 8.16 616 Hera
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SJD-758 161.95 162.80 0.85 0.58 1.48 130 Hera
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SJD-759 125.65 126.00 0.35 0.32 1.01 215 Hera
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SJD-761 88.20 89.50 1.30 1.00 1.13 49 Hera
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SJD-763 215.27 217.63 2.36 2.05 4.27 317 Hera
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SJD-770 303.62 304.92 1.30 1.15 1.01 28 Hera
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SJD-773 303.20 303.95 0.75 0.61 0.01 3 Hera
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SJD-774 98.95 99.75 0.80 0.58 0.01 5 Hera
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SJD-477 174.11 175.83 1.72 1.43 3.04 283 Mara
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SJD-708 143.12 144.25 1.13 0.94 0.04 6 Mara
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SJD-716 198.00 199.50 1.50 1.25 3.55 553 Mara
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SJD-726 163.85 164.82 0.97 0.85 6.48 330 Mara
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SJD-727 209.40 210.05 0.65 0.54 2.67 50 Mara
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SJD-486 332.76 333.70 0.94 0.78 0.08 6 Marta
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SJD-491 375.55 376.69 1.14 0.96 0.17 4 Marta
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SJD-757 168.20 171.40 3.20 2.89 4.21 136 Marta
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SJD-759 192.40 193.30 0.90 0.78 0.01 2 Marta
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SJD-761 226.10 227.00 0.90 0.82 0.01 1 Marta
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SJD-762 250.74 252.10 1.36 1.17 0.02 2 Marta
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SJD-764 80.60 82.50 1.90 1.69 2.19 216 Marta
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SJD-771 137.80 138.70 0.90 0.76 0.01 1 Marta
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SJD-773 396.45 397.45 1.00 0.90 0.39 4 Marta
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SJD-774 192.85 195.40 2.55 2.06 4.94 439 Marta
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SJD-775 232.35 233.80 1.45 1.24 3.71 10 Marta
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SJD-777 287.30 288.25 0.95 0.83 1.52 65 Marta
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SJD-782 268.55 269.95 1.40 1.19 0.01 2 Marta
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SJD-786 138.50 138.80 0.30 0.21 0.63 29 Marta
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SJD-787 275.30 276.00 0.70 0.45 6.32 108 Marta
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SJD-473 245.22 246.74 1.52 1.13 0.57 7 Pacha
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SJD-708 103.85 105.35 1.50 1.16 0.03 7 Pacha
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SJD-716 177.20 178.35 1.15 0.96 0.81 39 Pacha
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SJD-724 229.38 230.20 0.82 0.65 5.69 241 Pacha
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SJD-726 125.48 128.30 2.82 2.38 3.78 228 Pacha
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SJD-727 174.60 175.60 1.00 0.81 3.74 85 Pacha
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SJD-779 244.60 245.90 1.30 1.06 0.03 3 Pacha
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SJD-184 174.40 175.40 1.00 1.00 0.21 21 Ramal Frea 450
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SJD-335 118.94 120.30 1.36 1.30 1.30 78 Ramal Frea 450
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SJD-336 182.23 183.68 1.45 1.43 2.44 70 Ramal Frea 450
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SJD-338 139.95 140.54 0.59 0.55 0.02 3 Ramal Frea 450
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SJD-340 143.65 145.00 1.35 1.30 2.50 399 Ramal Frea 450
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SJD-470 74.65 75.45 0.80 0.75 0.90 144 Ramal Frea 450
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SJD-477 186.83 187.63 0.80 0.75 7.65 524 Ramal Frea 450
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SJD-513 100.05 103.58 3.53 1.20 1.00 57 Ramal Frea 450
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SJD-705 59.45 59.95 0.50 0.50 0.24 14 Ramal Frea 450
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SJD-706 79.90 81.35 1.45 1.45 6.25 1003 Ramal Frea 450
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SJD-708 175.80 178.20 2.40 2.00 0.74 73 Ramal Frea 450
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SJD-709 148.57 149.57 1.00 0.88 2.46 441 Ramal Frea 450
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SJD-710 134.80 135.90 1.10 0.90 0.18 18 Ramal Frea 450
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SJD-716 215.85 216.90 1.05 0.86 1.51 191 Ramal Frea 450
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SJD-726 172.20 173.15 0.95 0.83 1.78 170 Ramal Frea 450
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SJD-727 226.25 227.20 0.95 0.80 0.01 3 Ramal Frea 450
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SJD-779 310.20 311.20 1.00 0.75 0.05 3 Ramal Frea 450
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SJD-477 97.65 98.60 0.95 0.62 0.84 111 Shala
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SJD-716 131.80 132.10 0.30 0.20 0.56 75 Shala
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SJD-726 88.50 95.55 7.05 4.33 2.74 342 Shala
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SJD-727 159.30 160.40 1.10 0.67 9.60 538 Shala
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SJD-750 297.40 298.80 1.40 1.14 18.85 238 Ayelen Extension
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SJD-783 174.42 175.40 0.98 0.80 0.05 8 Ayelen Extension
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SJD-784 265.60 266.75 1.15 0.93 0.13 1 Ayelen Extension
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SJD-785 151.20 152.00 0.80 0.63 0.01 707 Ayelen Extension
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SJD-789 302.55 304.20 1.65 1.30 20.89 945 Ayelen Extension
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SJD-794 254.00 255.20 1.20 0.94 2.01 248 Ayelen Extension
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SJD-799 356.50 360.00 3.50 3.20 2.98 269 Ayelen Extension
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SJD-804 302.59 303.00 0.41 0.40 0.01 9 Ayelen Extension
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SJD-809 271.28 272.75 1.47 1.23 0.25 21 Ayelen Extension
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SJD-810 292.45 292.75 0.30 0.25 0.08 3 Ayelen Extension
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SJD-812 250.15 251.20 1.05 0.72 0.01 1 Ayelen Extension
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SJD-816 336.41 337.34 0.93 0.74 3.70 432 Ayelen Extension
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To view Exhibit 3 - Longitudinal Sections, please visit the following link: http://media3.marketwire.com/docs/mai_10_07_2010_exhibit_3.pdf
The TSX has not reviewed and does not accept responsibility for the adequacy or accuracy of the contents of this news release, which has been prepared by management.
Contacts:
Minera Andes Inc.
Daniela Ozersky
Manager, Investor Relations
647-258-0395 or Toll-Free: 1-866-441-0690
647-258-0408 (FAX)
Minera Andes Inc.
Jim Duff
Chief Operating Officer
647-258-0395 or Toll-Free: 1-866-441-0690
647-258-0408 (FAX)
Minera Andes Inc.
99 George St. 3rd Floor
Toronto, Ontario, Canada. M5A 2N4
647-258-0395 or Toll-Free: 1-866-441-0690
647-258-0408 (FAX)
info@minandes.com
www.minandes.com