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Vizcachitas

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Porphyry copper deposit in Valparaíso, Chile

Names and other identifiers

GMRAP ID 625
Tract name Argentina-Chile Miocene–Pliocene Los Pelambres (005pCu1013b)
Site status deposit

Geographic location

Country Chile
State or province Valparaíso
Geographic location -70.233333333, -32.883333333
Geologic map unit -70.233333333, -32.883333333
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 11.2Ma
Age determination method K-Ar, mid-point
Age range 12 ±0.3 to 10.4 Ma
Age reference Singer and others (2008); Leo Hathaway (written commun., 2006 to Cunningham and others, 2008)
Minerals azurite/malachite, chalcocite, chalcopyrite, covellite, cuprite, ferrimolybdite, molybdenite, pyrite, sericite, tourmaline
Associated rocks breccia, dacite porphyry, diorite, andesite, granodiorite, tuff
Tectonic setting continental margin
Stratigraphic age Miocene

Commodity and development information

Development status Prospect
Major commodities Cu, Mo, Au
Tonnage (Mt) 1,163Mt
Cu grade (%) 0.38%
Mo grade (%) 0.012%
Contained copper 4,400,000t
Gold-Moly ratio -9999

Reference information

Comments 0.25% cut-off grade; 9 ppb Au.
Study area name Andes
References Lumina Copper Corp. (2004c); Maksaev (2001); Priesmeyer and Sim (2007); Singer and others (2008); Leo Hathaway (written commun., 2006 to Cunningham and others, 2008)
Site reference Cunningham and others (2008)
Lumina Copper Corp., 2004c, Vizcachitas property: Lumina Copper Corp., 2 p., accessed 2008, at http://www.luminacopper.com/s/VizcachitasProperty.asp. [Web page no longer available.]
Maksaev, V.J., 2001, Reseña metalogenica de Chile y de los procesos que determinan la metalogenesis Andina: 63 p, accessed 2008, at http://www.cipres.cec.uchile.cl/~vmaksaev/METALOGENESIS20DE20Chile.pdf. [Web page no longer available.]
Priesmeyer, S.T., and Sim, R.C., 2007, Technical report on the Vizcachitas property, Region V, Chile, 98 p., accessed 2008, at http://www.losandescopper.com/_resources/GHG_43_101_Report_FINAL.pdf. [Web page no longer available.]
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/.