Los Verdes

Porphyry copper prospect in Sonora, Mexico

Names and other identifiers

GMRAP ID 3036
Alternate names Tecoripa, Yecora, San Nicolas, La Cruz, La Gloria, Las Verdes, Santa Ana
Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Site status prospect

Geographic location

Country Mexico
State or province Sonora
Geographic location -109.149571804, 28.394675443
Geologic map unit -109.149571804, 28.394675443
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 49.3Ma
Age determination method unknown
Age range 49.3 ±1.2 Ma (biotite); 58.5 ±1.3 Ma (hornblende)
Age reference unknown
Minerals chalcopyrite, molybdenite, pyrite, scheelite, wolframite
Tectonic setting continental margin
Stratigraphic age Paleocene–Eocene

Commodity and development information

Development status Occurrence
Major commodities Cu, Mo, W, Ag
Gold-Moly ratio -9999

Reference information

Comments Deposit follows faulted, brecciated zone. Location is that of Servicio Geológico Mexicano prospect on 250K map and 500K state maps. Resource: minimum estimate 10,000,000 t 0.25% Mo, 0.2% Cu, 0.2% WO3 (Perez Segura, 1985). Tourmaline breccia (Penasco Blanco Tres Piedras) nearby. Ages: 58.5 ±1.3 Ma hornblende (granodiorite), 49.3 ±1.2 Ma biotite (granodiorite). Alteration: potassic.
Study area name Mexico
References Pérez-Segura (1985);García-Cortez and others (2000); Servicio Geológico Mexicano (2007); Barnard and Sandefur (2008)
Site reference Hammarstrom and others (2010)
Barnard, Fred, and Sandefur, Robert, 2008, Technical report, Los Verdes project, Sonora, Mexico: Lakewood, Colo., Chlumsky, Armbrust and Meyer LLC National Instrument 43-101 Technical Report prepared for Virgin Metals Inc., 99 p. (Also available at http://www.virginmetals.com/properties/losverdesreports.php.)
García-Cortez, J.A., Guzmán-Espinoza, J.B., Mancillas-Gutiérrez, A.A., García-Duarte, Rodolfo, and Siqueiros-López, Christian, 2000, Carta geológico-minera, Tecoripa H12-12, Sonora and Chihuahua [Mexico]: Pachuca, Hidalgo, Servicio Geológico Mexicano, 1 sheet, scale 1:250,000.
Pérez-Segura, E., 1985, Carta Metalogenética de Sonora 1:250,000—Una interpretación de la metalogenia de Sonora: Gobierno del Estado de Sonora Publicación 7, 64 p.
Servicio Geológico Mexicano, 2007, Base de datos de mineral de cobre de la cartografìa geològico minera: Subdirección de Geociencia Digital y Documentación Tècnica, 1:250,000.