Cerro del Gallo

Porphyry copper prospect in Guanajuato, Mexico

Names and other identifiers

GMRAP ID 3009
Alternate names San Antón
Tract name Tertiary Central Plateau and Rocky Mountains (003pCu3009x)
Group name Cerro del Gallo
Included sites San Antón de las Minas mining district, San Antón SGM Ag-Au mine
Site status prospect

Geographic location

Country Mexico
State or province Guanajuato
Geographic location -101.027574849, 21.075014305
Geologic map unit -101.027574849, 21.075014305
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 30Ma
Age determination method unknown
Age range 30 Ma
Age reference Stewart (2008)
Minerals arsenopyrite, azurite, baksanite, bismuthinite, bornite, bournonite, cervantite, chalcocite, chalcopyrite, cosalite, covellite, galena, hessite, malachite, marcasite, pyrite, sphalerite, tetradymite, tsumoite
Associated rocks ilmenite-bearing monzogranite
Tectonic setting postconvergence
Stratigraphic age Oligocene

Commodity and development information

Development status Occurrence
Major commodities Au, Cu, Ag
Gold-Moly ratio -9999

Reference information

Comments Evaluated by San Anton Resource Corp. as part of their San Anton property exploration (drilling, rock, soil, and stream sediment sampling, metallurgy). Total weighted average tonnage and grade data based on NI43-101 compliant resource estimate (350 drill holes. 0.07% Cu cut off grade): measured and indicated resources of 461 Mt at 0.11% Cu, 0.27 g/t Au, 11 g/t Ag; inferred resources of 166 Mt at 0.10% Cu, 0.11 g/t Au, and 7 g/t Ag (Stewart, 2008). Deposit open to SE, NW, and at depth. Reduced porphyry Cu-Au deposit associated with upright, subvolcanic granodiorite to monzogranite stock. Intrusives contain ilmenite, lack magnetite and hematite. Mineralization in vein stockworks, sulfide fracture fillings and disseminations, and massive pyrrhotite veins. Alteration: potassic, phyllic,propylitic, argillic, sideritic.
Study area name Mexico
References Stewart (2008); Rowins (2000)
Site reference Hammarstrom and others (2010)