Mission-Pima

Porphyry copper deposit in Arizona, United States

Names and other identifiers

GMRAP ID 83
Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Included sites Palo Verde
Site status deposit

Geographic location

Country United States
State or province Arizona
Geographic location -111.067493527, 31.988862697
Geologic map unit -111.067493527, 31.988862697
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 58Ma
Age determination method unknown
Age range 58 Ma
Age reference Singer and others (2008)
Minerals actinolite, azurite/malachite, biotite, bornite, brochantite, chalcopyrite, chlorite, chrysocolla, clay minerals, copper, cuprite, dolomite, fluorite, garnet, gypsum, hematite, jarosite, limonite, molybdenite, pyrite, scheelite, sericite, sphalerite, tetrahedrite, tremolite, wollastonite
Associated rocks quartz monzonite porphyry, skarn, basalt, rhyolite, argillite, conglomerate, dolomite, gypsum, limestone, marble, mudstone, sandstone, siltstone
Tectonic setting continental margin
Stratigraphic age Paleocene

Commodity and development information

Development status Producer
Major commodities Cu
Tonnage (Mt) 900Mt
Cu grade (%) 0.52%
Mo grade (%) 0.015%
Ag grade (g/t) 2g/t
Contained copper 4,700,000t
Gold-Moly ratio -9999

Reference information

Comments The Dynamite deposit (31.926 N, 110.769 E; 91 Mt at 0.53% Cu ) is considered as a part of the Mission-Pima deposit. Exposed.
Study area name United States
References Einaudi (1982); Jansen (1982); Kennison (1966); Titley (1982); Williamson and Poulton (1995); Singer and others (2008)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)
Einaudi, M.T., 1982, Description of skarns associated with porphyry copper plutons, southwestern North America, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 139–183.
Jansen, L.J., 1982, Stratigraphy and structure of the Mission copper deposit, Puma mining district, Arizona, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 467–474.
Kennison, J.E., 1966, The Mission copper deposit, Arizona, in Titley, S.R., and Hicks, C.L., eds., Geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 281–287.
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/.
Titley, S.R., 1982, Some features of tectonic history and ore genesis in the Pima mining district, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 387–406.
Williamson, R.L., and Poulton, M.M., 1995, The geology of the Mineral Hill area, Mission mine, Pima County, Arizona, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 442–454.