La Florida

Porphyry copper deposit in Sonora, Mexico

Names and other identifiers

GMRAP ID 180
Alternate names La Florida-Barrigon, Mina La Lilly
Tract name Western Sierra Madre Occidental and Laramide Central (003pCu3007x)
Site status deposit

Geographic location

Country Mexico
State or province Sonora
Geographic location -109.725361997, 30.379022821
Geologic map unit -109.725361997, 30.379022821
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 52.4Ma
Age determination method K-Ar sericite
Age range 52.4 ±1.1 Ma
Age reference Damon, Shafiqullah and Clark (1983)
Minerals apatite, biotite, calcite, chalcopyrite, chlorite, chrysocolla, epidote, kaolinite, magnetite, malachite, molybdenite, pyrite, sericite, sphalerite, sphene, tourmaline, zeolite
Associated rocks andesite, andesite agglomerate, basaltic andesite, conglomerate, dacite, dacite pyroclastics, limestone, quartz diorite, quartz porphyry, tonalite, tuff, tuffaceous sandstone, tuffaceous siltstone
Tectonic setting continental margin
Stratigraphic age Eocene

Commodity and development information

Development status Prospect
Tonnage (Mt) 135Mt
Cu grade (%) 0.33%
Contained copper 450,000t
Gold-Moly ratio -9999

Reference information

Comments Exposed. Location of prospect on 250K map.
Study area name Mexico
References Damon, Shafiqullah and Clark (1983); Palafox-Reyes and others (1998); Singer and others (2008); Theodore and Priego De Wit (1978); Damon, Shafiqullah, Roldán-Quintan and Cochemé (1983); Sillitoe (1976); Terán-Martínez and others (1999)
Site reference Hammarstrom and others (2010)
Damon, P.E., Shafiqullah, Muhammad, and Clark, K.F., 1983, Geochronology of the porphyry copper deposits and related mineralization of Mexico: Canadian Journal of Earth Sciences, v. 20 p. 1052–1071. (Also available at http://dx.doi.org/10.1139/e83-095.)
Damon, P.E., Shafiqullah, M., Roldán-Quintana, J., and Cochemé, J.J., 1983, El batolito Laramide (90–40 Ma) de Sonora, in Memorias de la XV Convención Nacional de la AIMMGM, Guadalajara, Jalisco, Proceedings: Asociación de Ingenieros de Minas, Metalurgistas y Geólogos de México (AIMMGM), p. 63–95.
Palafox-Reyes, J.J., Minjarez-Sosa, Ismael, Saavedra-Monreal, Rogelio, Alamazán-Vázquez, Emelio, Morales-Montaño, Mariano, Ochoa-Landin-L.H., Rodríguez-Torres, Rafael, Rivera-Enriquez, Braulio, Castro-Escarrega, J.J., and Zamora-Tovar, R.E., 1998, Carta geológico-minera, Nacozari H12-6, Sonora [Mexico]: Pachuca, Hidalgo, Servicio Geológico Mexicano, 1 sheet, scale 1:250,000.
Sillitoe, R.H., 1976, A reconnaissance of the Mexican porphyry copper belt: Institutions of Mining and Metallurgy Transactions, Section B—Applied Earth Science, v. 85, p. B170–B189.
Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.
Terán-Martínez, G.E., Cerecero-Luna, Miguel, Mendoza-Romero, Macario, Castro-Escárrega, J.J., and García-Cortez, J.A., 1999, Carta geológico-minera, Cananea H12-5, Sonora [Mexico]: Pachuca, Hidalgo, Servicio Geológico Mexicano, 1 sheet, scale 1:250,000.
Theodore, T. G., and Priego De Wit, Miguel, 1978, Porphyry type metallization and alteration at La Florida de Nacozari, Sonora, Mexico: U.S. Geological Survey Journal of Research, v. 6, p. 59–72. (Also available at http://pubs.usgs.gov/journal/1978/vol6issue1/report.pdf.)