Alto Dorado, Porphyry copper prospect

Alto Dorado

Porphyry copper prospect in La Libertad, Peru

Names and other identifiers

GMRAP ID	635
Tract name	Peru-Ecuador middle–late Miocene La Granja (005pCu1006)
Site status	prospect

Geographic location

Country	Peru
State or province	La Libertad
Geographic location	-78.183333333, -8.166666667 (click for info)
Geologic map unit	-78.183333333, -8.166666667
Nearby data	List Map

Geologic information

Deposit type	Porphyry copper
Age determination method	Geologic inference
Age range	mid-Miocene–late Miocene or younger
Age reference	geologic inference
Minerals	alunite, chalcocite, chalcopyrite, chlorite, kaolinite/dickite, epidote, jarosite, magnetite, malachite, phlogopite, pyrite, pyrophyllite, sericite, tenorite
Associated rocks	breccia, andesite, andesite porphyry, diorite, granodiorite, tuff
Tectonic setting	continental margin
Stratigraphic age	mid-Miocene–late Miocene or younger

Commodity and development information

Development status	Occurrence
Major commodities	Cu, Au
Gold-Moly ratio	-9999

Reference information

Comments	Drill core samples from stockwork at 46 to 201 m depth grade 0.1 to 1.2 g/t Au and 0.1 to 0.69% Cu. Exposed. Cu-Au subtype(?).
Study area name	Andes
References	Candente Resource Corp. (2004a); Candente Resource Corp. (2004b); Singer and others (2005); Singer and others (2008)
Site reference	Cunningham and others (2008)

Candente Resource Corp., 2004a, Candente intersects gold-copper porphyry on Alto Dorado, northern Peru: Candente Resource Corp. press release, September 16, 2004, 1 p., accessed 2008, at http://www.candente.com.Candente Resource Corp., 2004b, Candente's more advanced projects, Alto Dorado: Candente Resource Corp. press release, September 22, 2004, 1 p., accessed 2008, at http://www.candente.com/s/Projects_Peru.asp?PropertyInfoID=655&View=1.Singer, D.A., Berger, V.I., and Moring, B.C., 2005, Porphyry copper deposits of the worldDatabase, map, and grade and tonnage models: U.S. Geological Survey Open-file Report 2005-1060, [9] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2005/1060/.Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the worldDatabase 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/.