CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
1003 Bolivia (Potosi) 20.59.37 S -- 067.12.36 W Cobrizos 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): 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 rocks
Host rock stratigraphy:Potoco Formation

(2) sedimentary; carbonate
Individual 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: reserve
Grade-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)

Generated 2015-01-27 17:13:57 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada