Red Hills

Porphyry copper deposit in Arizona, United States

Names and other identifiers

GMRAP ID 70
Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Site status deposit

Geographic location

Country United States
State or province Arizona
Geographic location -111.216111111, 33.036111111
Geologic map unit -111.216111111, 33.036111111
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 65Ma
Age determination method unknown
Age range 70–60 Ma
Age reference Singer and others (2008)
Minerals chalcopyrite, hematite, pyrite, sericite
Associated rocks rhyodacite porphyry, diabase, granite, schist
Tectonic setting continental margin
Stratigraphic age Late Cretaceous–Paleocene

Commodity and development information

Development status Occurrence
Major commodities Cu
Tonnage (Mt) 454Mt
Cu grade (%) 0.1%
Contained copper 500,000t
Gold-Moly ratio -9999

Reference information

Study area name United States
References Keith and others (1984); Williams and Forrester (1995); Singer and others (2008)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)