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): Americas Unidas
Longitude / Latitude: -68.47111 / -17.12556
Political location(s): Bolivia; Province or state: La Paz; Nearest community: Corocoro (5 km NNW)
Deposit clan (type): sediment-hosted copper
Deposit (sub) types: continental redbed; chalcocite, covellite, cuprite, malachite and azurite are associated with organic material in sandstone and conglomerate
Geologic province: Altiplano
Geologic subprovince: Ulloma Domain
Commodities: Cu; Ag; Pb; U; Th
Mineralization styles: replacement
Geological ages: Miocene (host rocks)
Tectonic setting: continental basin-foreland; transpressive (host rocks)
Coincident features: organic matter
Regional tectonic structure: regional folding
unconformity
Host rocks: (1) sedimentary; sandstone-conglomerate
Host rock stratigraphy:Caquiaviri (Vetas) Formation
Mineralogy: (mineralization): chalcocite, covellite, cuprite, malachite, azurite
Qualified comments: (Applies to: miscellaneous comments) chalcocite, covellite, cuprite, malachite and azurite are associated with organic material in sandstone and conglomerate; 19 mantos as much as 4 m thick and 2.5 km long
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): Americas Unidas Mine (5)

Generated 2015-01-27 17:26:43 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
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