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Porphyry copper prospect in Chiapas, Mexico

Names and other identifiers

GMRAP ID 198
Tract name Cocos (003pCu4004)
Site status prospect

Geographic location

Country Mexico
State or province Chiapas
Geographic location -92.330760879, 15.319772518
Geologic map unit -92.330760879, 15.319772518
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 5.6Ma
Age determination method Pb alpha age
Age range 5.6 Ma(?)
Age reference Barton and others (1995)
Minerals anhydrite, biotite, chalcopyrite, chlorite, epidote, ilmenite, molybdenite, pyrite, sericite
Associated rocks andesite, andesite porphyry, conglomerate, dacite, quartz diorite, granodiorite, limestone, pyroclastics, quartz diorite porphyry, sandstone, tonalite
Tectonic setting mixed
Stratigraphic age Miocene

Commodity and development information

Development status Occurrence
Major commodities Cu, Mo
Minor commodities Zn, Ag
Gold-Moly ratio -9999

Reference information

Comments Cu-Mo porphyry target explored by Southern Copper Corp. (became Santa Catalina Mining Corp. in 1994) =0.8% Cu reported. Assocaited with Central American strike-slip faulting and southern Mexico collisional arc.Stockwork and disseminated chalcopyrite-molybdenite-pyrite veinlets; alteration (biotite-kspar-sericite-quartz-pyrite; epidote-chlorite-pyrite-goethite). Cluster of prospects on Servicio Geológico Mexicano 250K map. Alteration: unknown.
Study area name Mexico
References Singer and others (2008); Barton and others (1995); Damon, Shafiqullah and Clark (1983); Sillitoe (1976); 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.
Damon, P.E., Shafiqullah, Muhammad, and Clark, K.F., 1983, Geochronology of the porphyry copper deposits and related mineralization of Mexico: Canadian Journal of Earth Sciences, v. 20 p. 1052–1071. (Also available at http://dx.doi.org/10.1139/e83-095.)
Sillitoe, R.H., 1976, A reconnaissance of the Mexican porphyry copper belt: Institutions of Mining and Metallurgy Transactions, Section B—Applied Earth Science, v. 85, p. B170–B189.
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/.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/.