Pine Flat

Porphyry copper deposit in Arizona, United States

Names and other identifiers

Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Site status deposit

Geographic location

Country United States
State or province Arizona
Geographic location -112.351944444, 34.368888889
Geologic map unit -112.351944444, 34.368888889
Nearby data

Geologic information

Deposit type Porphyry copper
Minerals azurite/malachite, barite, biotite, bornite, carbonate, chalcocite/digenite, chalcopyrite, chlorite, cuprite/tenorite, epidote, galena, goethite/limonite, hematite/specularite, kaolinite, magnetite, molybdenite, montmorillonite, pyrite, sericite, sphalerite, zeolite
Associated rocks alaskite, andesite, aplite, breccia, dacite porphyry, quartz monzonite porphyry, gneiss, schist
Tectonic setting continental margin

Commodity and development information

Development status Occurrence
Major commodities Cu
Tonnage (Mt) 25Mt
Cu grade (%) 0.36%
Mo grade (%) 0.008%
Au grade (g/t) 0.17g/t
Ag grade (g/t) 4g/t
Contained copper 90,000t
Gold-Moly ratio 20

Reference information

Comments Exposed.
Study area name United States
References Spatz (1995); Singer and others (2008)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)
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
Spatz, D.M., 1995, Geology and zoning relationships at the Pine Flat porphyry copper deposit, Yavapai 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. 347–363.