CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
1014 Bolivia (Oruro) 16.37.31 S -- 068.36.06 W Tres Amigos Cu
 
Database name: World Sediment-Hosted Cu Deposits
Compilers: R. V. Kirkham, J. J. Carriere, A. Rafer, and P. Born
Release date: 2015-01-27
   
Deposit name(s): Tres Amigos
Political location(s): Bolivia; Province or state: Oruro; Nearest community: Virgen de Fatima Mine
Deposit clan (type): sediment-hosted copper
Deposit (sub) types: continental redbed; chalcocite, azurite and malachite replace fossil plants in sandstone
Geologic province: Altiplano
Commodities: Cu
Geological ages: Eocene - Oligocene (host rocks)
Miocene (host rocks)
Tectonic setting: continental basin-foreland; transpressive (host rocks)
Coincident features: organic matter (fossil plants)
Regional tectonic structure: anticlinorium
Host rocks: (1) sedimentary; sandstone
Host rock stratigraphy:Tiahuanacu Formation

(2) sedimentary; sandstone-conglomerate
Host rock stratigraphy:Huayllamarca Formation
Qualified comments: (Applies to: miscellaneous comments) chalcocite, azurite and malachite replace fossil plants in sandstone; small mantos 10 to 40 cm thick
References:
Cox, D. P.; Carrasco, R.; André-Tamos, O.; Hinojosa-Velasco, A.; Long, K. R., 1992
Copper Deposits in Sedimentary Rocks
Section Geology of Known Mineral Deposits, in Geology and Mineral Resources of the Altiplano and Cordillera Occidental, Bolivia, Edited by United States Geological Survey; Servicio Geologico de Bolivia, Bulletin, U.S. Geological Survey, 1975, 365 p., 8 maps, p. 95 - 108

Long, K. R., 1992
Mines, Prospects, and Mineral Occurrences, Altiplano and Cordillera Occidental, Bolivia
Appendix A, in Geology and Mineral Resources of the Altiplano and Cordillera Occidental, Bolivia, Edited by United States Geological Survey; Servicio Geologico de Bolivia, Bulletin, U.S. Geological Survey, 1975, 365 p., 8 maps, p. 244 - 272

Richter, D. H.; Luddington, S.; Soria-Escalante, E., 1992
Geological Setting
in Geology and Mineral Resources of the Altiplano and Cordillera Occidental, Bolivia, Edited by United States Geological Survey; Servicio Geologico de Bolivia, Bulletin, U.S. Geological Survey, 1975, 365 p., 8 maps, p. 14 - 24

Associated mine(s): Tres Amigos Mine (15)
Associated group(s): San Sylvestre Area (6)

Generated 2015-01-27 17:13:53 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada