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Porphyry copper prospect in Arizona, United States

Names and other identifiers

GMRAP ID 706
Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Site status prospect

Geographic location

Country United States
State or province Arizona
Geographic location -111.051738235, 33.292903237
Geologic map unit -111.051738235, 33.292903237
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 64Ma
Age determination method unknown
Age range 64–63 Ma
Age reference Singer and others (2008)
Minerals bornite, chalcocite/digenite, chalcopyrite, chlorite, epidote, fluorite, molybdenite, pyrite, sericite, topaz
Associated rocks breccia, felsic porphyry, skarn, carbonate rocks, schist, volcanics
Tectonic setting continental margin
Stratigraphic age Paleocene

Commodity and development information

Development status Prospect
Major commodities Cu
Gold-Moly ratio -9999

Reference information

Comments Preliminary reported ~1,500 Mt at 1.5% Cu underlying the Magma vein-type Cu deposit at depth of 1500 to 2000 m below surface.
Study area name United States
References Niemuth (2005); Schwarz (2007); Seedorff and others (2005); Singer and others (2008)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)
Niemuth, N.J., 2005, Arizona’s metallic resources—Trends and opportunities: Arizona Department of Mines and Mineral Resources Open-File Report 05-22, 22 p. (Also available at http://www.admmr.state.az.us/Publications/ofr05-22.pdf.)
Schwarz, A., 2007, Geology of the Resolution porphyry Cu-Mo system [abs.], in Arizona Geological Society, Ores and Orogenesis—Circum-Pacific Tectonics, Geologic Evolution, and Ore Deposits—A Symposium Honoring the Career of William R. Dickinson, Tucson, Ariz., September 24–30, 2007: Arizona Geological Society Program with Abstracts, p. 138.
Seedorf, Eric, Barton, M.D., Gehrels, G.E., Johnson, D.A., Maher, D.J., Stavast, W.J.A., and Flesch, Erik, 2005, Implications of new U-Pb dates from porphyry copper-related plutons in the Superior-Globe-Ray-Christmas area, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 37, no. 7, p. 83–84. (Also available at https://gsa.confex.com/gsa/2005AM/finalprogram/abstract_96972.htm.)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/.