Luz del Cobre

Porphyry copper deposit in Sonora, Mexico

Names and other identifiers

GMRAP ID 684
Alternate names San Antonia de La Huerta
Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Site status deposit

Geographic location

Country Mexico
State or province Sonora
Geographic location -109.642185445, 28.627378399
Geologic map unit -109.642185445, 28.627378399
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range ~80–35 Ma(?) (Laramide orogeny(?))
Age reference Singer and others (2008)
Minerals chalcocite, chalcopyrite, Cu-carbonates, Cu-oxides, molybdenite, pyrite
Associated rocks dacite
Tectonic setting continental margin
Stratigraphic age Late Cretaceous–Paleocene–Eocene(?)

Commodity and development information

Development status Past Producer
Tonnage (Mt) 15Mt
Cu grade (%) 0.74%
Contained copper 110,000t
Gold-Moly ratio -9999

Reference information

Comments 2007 mining reserve - 4.287 Mt of mixed oxide and sulfide ore at a grade of 1% Cu; location based on 1:250K H12-12 map. Zaruma Resources permitted (July 2007) for open-pit, heap leach SX-EW project as part of their San Antonio land holdings. Described as breccia-hosted, supergene ""Manto-type"" copper mineralization in a porphyry-driven IOCG system. Note regional copper potential map on Zaruma website. Within Zaruma's San Antonio concessions. Alteration: unknown.
Study area name Mexico
References Valencia-Moreno and others (2006); Zaruma Resources (2008); Singer and others (2008); Valencia-Moreno and others (2007)
Site reference Hammarstrom and others (2010)