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EXPLORATION PROPERTIES

San Anton Property & the Cerro del Gallo Deposit, Guanajuato, Mexico


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View of Cerro del Gallo

San Anton Resource Corporation (SNN:TSX)  is an exploration and development company that is listed on the Toronto Stock Exchange and is totally focused on the mining friendly jurisdiction of Mexico.  The Company’s principal asset is a 61% interest in the San Anton Property (Goldcorp 39%), which hosts the near-surface Cerro del Gallo copper-gold-silver deposit (photo, right)

The San Anton Property is located in a historic gold-silver mining district in the state of Guanajuato in central Mexico, approximately 270km northwest of Mexico City. It is only in the period since July 2004 that the Property has been subjected to modern exploration techniques, a process that quickly identified several exploration targets. The only target that has received extensive work to date is the Cerro del Gallo deposit, where a NI 43-101 Mineral Resource of 1.4 billion pounds of copper, 4.5 million ounces of gold, and 202 million ounces of silver has been defined in less than three years. Measured and Indicated (M&I) categories account for 81% of total contained metal. The deposit is still open in a number of directions and a number of other exploration targets on the property have yet to be drilled.

Cerro del Gallo Mineral Resources

(0.2g/t Au cut-off grade in the gold domain and 0.07% Cu cut-off grade in the copper and intrusive domains)


Category     Tonnes (M)    Au g/t    Ag g/t    Cu%    Au Moz    Ag Moz    Cu Mlbs

Measured           225             0.35         13         0.11        2.5           91           541
Indicated           236             0.19         10         0.11        1.4           72           546
   M&I                461             0.27         11         0.11        3.9          163         1,087

 Inferred            166             0.11         7          0.10        0.6            39           356

                           1.4 Billion lbs copper, 4.5Moz gold and 202 Moz silver

 
 

Next Steps

Work to advance the San Anton project is proceeding on three fronts: engineering & metallurgical studies, expansion drilling at Cerro del Gallo, and exploration of regional tragtes. The exploration budget for the year is US$10 million.

Engineering & Metallurgy

The Company has engaged lead engineering companies – Ausenco and Golder Associates – to assist with the current study being undertaken on its Cerro del Gallo deposit. Multiple flow sheets, based on producing a saleable copper concentrate and the production of gold-silver doré on-site, are being evaluated.

In 2007, Golder Associates carried out a series of pit optimization studies which indicate that potential pits already contain a significant resource and have a very low strip ratio of 0.44. Preliminary metallurgical recoveries were assumed at 80% for gold and silver, and 85% for copper.

Cerro del Gallo Deposit - Resources Contained within Optimized Pit Shell 

(Based on Au US$500/oz, Ag US$9.00/oz, Cu US$1.50/lb)


Category     Tonnes (M)    Au g/t    Ag g/t    Cu%    AuEq g/t     AuEq Moz
Measured            54              0.76         14        0.08         1.18              2.0
Indicated             67             0.29         18        0.13         0.90              2.0
 Inferred              4               0.22         17        0.12         0.78              0.1

   Total               125             0.49         16        0.11         1.02              4.1

                      2 Moz gold, 64 Moz silver and 302 Mlbs copper

Note: The gold equivalent grade was calculated as Au+(Ag/55.56)+(CuX2.19) and assumes metallurgical recoveries of 80% for gold and silver, and 85% for copper. 
 
 
Expansion Drilling and Regional Exploration
 
SNN Expansion Drilling ProgramThe Cerro del Gallo deposit remains open in several directions. Expansion drilling results continued to encounter wide intersections of mineralization which resulted in an expansion of the already significant mineral resource, primarily in the outer copper-silver domain. The Company is also planning an extensive exploration program to determine if other deposits exist within the 10km˛ alteration halo that surrounds Cerro del Gallo. Three other large zones of clay alteration similar to Cerro del Gallo have yet to be tested.

Work has also commenced on some of the several other exploration targets elsewhere on the San Anton Property. The main target is the Carmen-Providencia vein system, a northnorthwest trending low sulphidation epithermal silver-gold system located approximately two kilometers west of Cerro del Gallo and traceable on surface for three kilometers. First pass drilling designed to test the upper levels of the epithermal vein systems is now completed with encouraging results from the Dolores and Empalizada prospects including 4.6m grading 428g/t Ag and 3.52g/t Au, 1.5m grading 590g/t Ag and 3.40g/t Au, 7.6m grading 168g/t Ag and 1.51g/t Au, and 3.6m grading 359g/t Ag and 1.51g/t Au.

Ongoing regional reconnaissance exploration will continue with the assessment of the results from the soil, stream sediment and BLEG sampling programmes, combining this with the ongoing geological and structural mapping and the extensive remote sensing database already established for the project area.