Mount Tolman

Porphyry copper (Cu-Mo) deposit in Washington, United States

Names and other identifiers

GMRAP ID 3300
Tract name Cordilleran Continental Arc (003pCu2004x)
Site status deposit

Geographic location

Country United States
State or province Washington
Geographic location -118.695358157, 48.055722436
Geologic map unit -118.695358157, 48.055722436
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Mo
Age determination method Geologic inference
Age range Eocene
Tectonic setting continental margin
Stratigraphic age Eocene

Commodity and development information

Development status Occurrence
Major commodities Cu
Tonnage (Mt) 2,400Mt
Cu grade (%) 0.09%
Mo grade (%) 0.056%
Contained copper 2,160,000t
Gold-Moly ratio -9999

Reference information

Comments Mo-rich.
Study area name United States
References Lasmanis and Utterback (1995)
Site reference U.S. Geological Survey National Mineral Resource Assessment Team (2002)
Lasmanis, Raymond, and Utterback, W.C., 1995, The Mount Tolman porphyry molybdenum-copper deposit, Ferry County, Washington, in Schroeter, T.G., ed., Porphyry deposits of the northwestern Cordillera of North America: Canadian Institute of Mining, Metallurgy and Petroleum Special Volume 46, p. 718–731.