Bear-Lagomarsino

Porphyry copper deposit in Nevada, United States

Names and other identifiers

GMRAP ID 44
Tract name Western U.S. and Sonoran Desert Jurassic Arc (003pCu9006x)
Site status deposit

Geographic location

Country United States
State or province Nevada
Geographic location -119.18, 39.03
Geologic map unit -119.18, 39.03
Nearby data

Geologic information

Deposit type Porphyry copper
Minerals actinolite, biotite, chalcopyrite, magnetite, molybdenite, pyrite
Associated rocks quartz monzonite, granite, limestone, rhyolite, sandstone, skarn, volcaniclastic rocks, andesite, quartz monzodiorite
Tectonic setting mixed

Commodity and development information

Development status Occurrence
Major commodities Cu
Tonnage (Mt) 454Mt
Cu grade (%) 0.4%
Contained copper 2,000,000t
Gold-Moly ratio -9999

Reference information

Study area name United States
References Albino (1995); Dilles and Proffett (1995); Einaudi (1982); Singer and others (2008)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)
Albino, G.V., 1995, Porphyry copper deposits of the Great Basin—Nevada, Utah, and adjacent California, in Pierce, F.W., and Bolm, J.G., eds, Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 267–296.
Dilles, J.H., and Proffett, J.M., 1995, Metallogenesis of the Yerington batholith, Nevada, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 306–315.
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.
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/.