Porphyry copper deposit in Nevada, United States

Names and other identifiers

Alternate names Banner
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 -114.766944444, 41.766944444
Geologic map unit -114.766944444, 41.766944444
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 150Ma
Age determination method unknown
Age range 150 Ma
Age reference Singer and others (2008)
Minerals actinolite, axinite, azurite/malachite, bornite, cerargyrite, chalcocite, chalcopyrite, chrysocolla, cuprite, garnet, hematite, pyrite
Associated rocks aplite, breccia, hornfels, monzonite porphyry, skarn, syenite porphyry, rhyolite flow, rhyolite tuff, chert, granodiorite, limestone, quartz monzonite, quartzite, shale, siltstone
Tectonic setting mixed
Stratigraphic age Late Jurassic

Commodity and development information

Development status Past Producer
Major commodities Cu
Tonnage (Mt) 56Mt
Cu grade (%) 0.77%
Contained copper 430,000t
Gold-Moly ratio -9999

Reference information

Comments Total production of the district: 3,751,050 lbs Cu; 1,222 oz Au; and 126,901 oz Ag.
Study area name United States
References Coats (1987); LaPointe and others (1991); Wendt and Albino (1992); Singer and others (2008)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)