Chaso Juan

Porphyry copper prospect in Bolívar, Ecuador

Names and other identifiers

GMRAP ID 225
Tract name Colombia-Ecuador Miocene Chaucha (005pCu1005)
Site status prospect

Geographic location

Country Ecuador
State or province Bolívar
Geographic location -79.116666667, -1.383333333
Geologic map unit -79.116666667, -1.383333333
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 20Ma
Age determination method unknown
Age range 21–19 Ma
Age reference Singer and others (2008)
Minerals biotite, chalcopyrite, chlorite, epidote, magnetite, molybdenite, pyrite
Associated rocks pillow andesitic basalt, basalt, diorite, granodiorite porphyry, limestone, quartz diorite
Tectonic setting continental margin
Stratigraphic age Miocene

Commodity and development information

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

Reference information

Comments 1.46 to 9.0% Cu, 0.1 to 1.5 g/t Au, 7.6 to 161 g/t Ag.
Study area name Andes
References PRODEMINCA (2000a); PRODEMINCA (2000b); Singer and others (2008)
Site reference Cunningham and others (2008)
PRODEMINCA, 2000a, Evaluacion distritos mineros del Ecuador—Depositos porfidicos y epi-mesotermales relacionados con intrusiones de las Cordilleras Occidental y Real: Ministerio de Energia y Minas, Subsecretaria de Minas, Direccion Nacional de Geologia, Proyecto de Desarrolo Minero y Control Ambiental (PRODEMINCA), v. 5, 223 p.
PRODEMINCA, 2000b, Manual de exploracion de depositos metaliferos en el Ecuador: Ministerio de Energia y Minas, Subsecretaria de Minas, Direccion Nacional de Geologia, Proyecto de Desarrolo Minero y Control Ambiental (PRODEMINCA), 100 p.
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/.