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Bajo El Durazno

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Porphyry copper deposit in Catamarca, Argentina

Names and other identifiers

GMRAP ID 321
Tract name Argentina Miocene–Pliocene Bajo de la Alumbrera (005pCu1014c)
Site status deposit

Geographic location

Country Argentina
State or province Catamarca
Geographic location -66.566666667, -27.283333333
Geologic map unit -66.566666667, -27.283333333
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 7.9Ma
Age determination method K-Ar whole rock
Age range 7.9 ±0.1 Ma
Age reference Sillitoe (1977)
Minerals biotite, bornite, calcite, chalcopyrite, chlorite, delafossite, galena, gold, malachite, magnetite, molybdenite, pyrite, siderite, sphalerite, tetrahedrite/tennantite
Associated rocks breccia, andesite porphyry, dacite porphyry, monzonite porphyry, agglomerate, andesite, andesite breccia, basalt
Tectonic setting continental margin
Stratigraphic age Miocene

Commodity and development information

Development status Prospect
Major commodities Cu, Au
Tonnage (Mt) 200Mt
Cu grade (%) 0.32%
Au grade (g/t) 0.12g/t
Contained copper 640,000t
Gold-Moly ratio -9999

Reference information

Comments 10% of the deposit area is covered by alluvium. Farallon Negro volcanic region.
Study area name Andes
References Alderete (1999c); Long (1995); Sasso and Clark (1998); Sillitoe (1977); Singer and others (2008)
Site reference Cunningham and others (2008)
Alderete, M.C., 1999c, Bajo el Durazno, Catamarca, in Zappettini, E.O., ed., Recursos minerales de la República Argentina: Buenos Aires, Instituto de Geología y Recursos Minerales (SEGEMAR), Anales 35, p. 1463–1466.
Long, K.R., 1995, Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 35–68.
Sasso, A.M., and Clark, A.H., 1998, The Farallón Negro Group, northwest Argentina—Magmatic, hydrothermal and tectonic evolution and implications for Cu-Au metallogeny in the Andean back-arc: Society of Economic Geologists SEG Newsletter, no. 34, p. 1, 8–18. (Also available at http://www.segweb.org/pdf/publications/newsletters/1998/SEG-Newsletter-34-1998-July.pdf.)Sillitoe, R.H., 1977, Permo-Carboniferous, upper Cretaceous, and Miocene porphyry copper-type mineralization in the Argentinean Andes: Economic Geology, v. 72, p. 99–109. (Also available at http://dx.doi.org/10.2113/gsecongeo.72.1.99.)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/.