Tumi

Porphyry copper prospect in Loja, Ecuador

Names and other identifiers

GMRAP ID 235
Alternate names Cerro Colorado, Nambija-Mina Real
Tract name Colombia-Ecuador-Peru Jurassic San Carlos (005pCu1003)
Site status prospect

Geographic location

Country Ecuador
State or province Loja
Geographic location -79.25, -4.25
Geologic map unit -79.25, -4.25
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range Jurassic
Age reference Singer and others (2008)
Minerals anhydrite, biotite/phlogopite, carbonate, chalcopyrite, chlorite, epidote, galena, halloysite, kaolinite/illite, molybdenite, montmorillonite, muscovite/sericite, paragonite, pyrite, pyrrhotite, smectite
Associated rocks andesite porphyry, breccia, rhyodacite porphyry, skarn, andesite, dacite, granodiorite, quartz monzodiorite, rhyodacite, phyllite, clastic rocks, volcaniclastics
Tectonic setting continental margin
Stratigraphic age Jurassic

Commodity and development information

Development status Occurrence
Gold-Moly ratio -9999

Reference information

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¬óDepositos 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¬óDatabase 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/.