Database name: |
World Sediment-Hosted Cu Deposits |
Compilers: |
R. V. Kirkham, J. J. Carriere, A. Rafer, and P. Born |
Release date: |
2015-01-27 |
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Deposit name(s): |
Cobrizos |
Longitude / Latitude: |
-67.21000 / -20.99361 |
Political location(s): |
Bolivia; Province or state: Potosi |
Deposit clan (type): |
sediment-hosted copper |
Deposit (sub) types: |
continental redbed; veinlets and mantos of chalcocite, covellite, cuprite, malachite and azurite with veinlets of gypsum and carbonates |
Geologic province: |
Altiplano-Cordillera Occidental |
Commodities: |
Cu |
Mineralization styles: |
veinlets; stratabound replacement |
Geological ages: |
Quaternary (host rocks) Paleogene (host rocks) |
Host rocks: |
(1) sedimentary; carbonateIndividual lithologies: | limestone | Host rock stratigraphy: | Minchin Formation |
(2) sedimentary; unclassified sedimentary rocksHost rock stratigraphy: | Potoco Formation |
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Qualified comments: |
(Applies to: miscellaneous comments) veinlets and mantos of chalcocite, covellite, cuprite, malachite and azurite with veinlets of gypsum and carbonates; veinlets follow or cut stratification; in places sandstone is cemented by calcite, azurite and iron oxides |
References: |
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 |
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