Dos Hermanos

Porphyry copper prospect in Tarapacá, Chile

Names and other identifiers

GMRAP ID 274
Tract name Chile-Peru Paleocene–Eocene Toquepala (005pCu1008)
Site status prospect

Geographic location

Country Chile
State or province Tarapacá
Geographic location -69.721666667, -18.29
Geologic map unit -69.721666667, -18.29
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range Miocene(?)
Age reference Singer and others (2008)
Minerals chalcopyrite, magnetite, molybdenite, pyrite
Associated rocks granodiorite, andesite, basalt, volcanic-sedimentary rocks
Tectonic setting continental margin
Stratigraphic age Miocene(?)

Commodity and development information

Development status Past Producer
Major commodities Cu, Mo
Gold-Moly ratio -9999

Reference information

Comments Resources: 500,000 t at 0.98% Cu and 120 ppm Mo.
Study area name Andes
References Zappettini and others (2001); Singer and others (2008)
Site reference Cunningham and others (2008)
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/.
Zappettini, Eduardo; Miranda-Angles, Vitaliano; Rodriguez S., Carolina; Palacios, Oscar; Cocking,Robert; Godeas, Marta; Uribe-Zeballos, Hernán; Vivallo S., Waldo; Paz, M.M.; Seggiaro, Raúl; Heuschmidt, Bertand; Gardeweg P., Moyra; Boulangger Rondoy, Elmere; Korzeniewski, Lidia I.; Mpodozis M., Constantino; Carpio R., Mario; and Rubiolo, Daniel, 2001, Mapa metalogénico de laregión fronteriza entre Argentina, Bolivia, Chile y Perú (14ºS–28ºS): Santiago, Chile, Servicio Nacional de Geología y Minería, Publicacion Geológica Multinacional No. 2, 222 p., 1 map, scale 1:1,000,000.