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): |
Cobrizos |
Political location(s): |
Bolivia; Province or state: Potosi |
Deposit clan (type): |
sediment-hosted copper |
Deposit (sub) types: |
continental redbed; veinlets of chalcocite, covellite, cuprite, malachite and azurite follow or cut stratification; copper carbonates occur as mantos in limestone |
Geologic province: |
Altiplano |
Commodities: |
Cu |
Mineralization styles: |
fracture fillings; veinlets; stratabound replacement |
Geological ages: |
Eocene (host rocks) Quaternary (host rocks) |
Tectonic setting: |
continental basin-foreland; transpressive (host rocks) |
Host rocks: |
(1) sedimentary; unclassified sedimentary rocksHost rock stratigraphy: | Potoco Formation |
(2) sedimentary; carbonateIndividual lithologies: | limestone | Host rock stratigraphy: | Minchin Formation |
|
Mineralogy: |
(manto): copper carbonates (veinlets): chalcocite, covellite, cuprite, malachite, azurite, gypsum, carbonate |
Qualified comments: |
(Applies to: miscellaneous comments) veinlets of chalcocite, covellite, cuprite, malachite and azurite follow or cut stratification; copper carbonates occur as mantos in limestone |
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 |
|
Resource data: |
Disclaimer - Reserves/Resource Data
Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.
Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported. |
400,000 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: reserveGrade-commodity information: | Cu: 0.6 percent Ag: 0.1 grams/metric ton | Reference: 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 Percent weights allocated to deposit: 100.0% |
Associated group(s): |
Uyuni Area (13) |