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Porphyry copper prospect in Chihuahua, Mexico

Names and other identifiers

GMRAP ID 188
Alternate names Batopilas
Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Site status prospect

Geographic location

Country Mexico
State or province Chihuahua
Geographic location -107.719058724, 26.987777125
Geologic map unit -107.719058724, 26.987777125
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 51.6Ma
Age determination method K-Ar biotite
Age range 51.6 ±1.1 Ma
Age reference Singer and others (2008); Wilkerson and others (1988)
Minerals actinolite, chalcanthite, chalcopyrite, chlorite, galena, limonite, molybdenite, pyrite, sericite, sphalerite, tetrahedrite/tennantite, zeolite
Associated rocks andesite, basalt, granitoid, metamorphic rocks
Tectonic setting continental margin
Stratigraphic age Eocene

Commodity and development information

Development status Occurrence
Gold-Moly ratio -9999

Reference information

Comments Resources: 4 Mt at 0.4% Cu and 2 to 3 g/t Au. Lies 5 km southeast of the Tahonas prospect, probably related to the intrusive system. A large area of advanced argillic alteration resembles the nearby El Sauzal mine (Goldcorp, 2 MM oz gold). Only a small part of the area has been previously explored in detail (EXMIN Resources, Inc, 2008). Alteration: propylitization-silicification.
Study area name Mexico
References Barton and others (1995); Goodell (1995); Librado-Flores and others (1999); Wilkerson and others (1988); Singer and others (2008)
Site reference Hammarstrom and others (2010)
Barton, M.D., Staude, J.-M.G., Zürcher, L., and Megaw, P.K.M., 1995, Porphyry copper and other intrusion-related mineralization in Mexico, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest, v.20, p.487–524.
Goodell, P.C., 1995, Porphyry deposits along the Batopilas lineament, Chihuahua, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 544.
Librado-Flores, José, Salazar-Reyes, Joaquín, Pérez-De La Cruz, J.A., Miranda-Huerta, Alfonso, Maldonado-Sánchez, Guadalupe, Torreblanca, Teresita, and Prian, Jean, 1999, Carta geológico-minera, Guachochi G13-4, Chihuahua, Sinaloa and Durango [Mexico]: Pachuca, Hidalgo, Servicio Geológico Mexicano, 1 sheet, scale 1:250,000.
Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.Wilkerson, Gregg; Deng, Quingping; Llavona, Ramon; and Goodell, P.C., 1988, Batopilas mining district, Mexico: Economic Geology, v. 83, p. 1721–1736. (Also available at http://dx.doi.org/10.2113/gsecongeo.83.8.1721.)