CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


 
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): Esperanza (1); Esperanza
Longitude / Latitude: -68.20000 / -17.58333
Political location(s): Bolivia; Province or state: La Paz; Nearest community: Callapa (4 km S)
Deposit clan (type): sediment-hosted copper
Deposit (sub) types: continental redbed; chalcocite, malachite and azurite replace organic matter in five mantos; mineralization extends 30 km to the southeast
Geologic province: Altiplano
Commodities: Cu
Geological ages: Middle Miocene - Late Miocene (host rocks)
Tectonic setting: continental basin-foreland; transpressive (host rocks)
Coincident features: organic matter
Regional tectonic structure: diapirs (large diapir of gypsum and shale) Tectonic structure name: Chuquichambi Formation
Host rocks: (1) sedimentary; sandstone
Host rock stratigraphy:Totora Formation
Qualified comments: (Applies to: miscellaneous comments) chalcocite, malachite and azurite replace organic matter in five mantos; mineralization extends 30 km to the southeast; mantos averaging 2 m thick, strike 140 and dip 40 degrees SW
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): Esperanza Mine (55)

Generated 2015-01-27 17:26:36 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
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