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): Avaroa; Eduardo Avoroa; El Descuido
Longitude / Latitude: -67.04528 / -21.60750
Political location(s): Bolivia; Province or state: Potosi; Nearest community: San Pablo de Lipez (44 km W)
Deposit clan (type): sediment-hosted copper
Deposit (sub) types: continental redbed; chalcocite has replaced sandstone matrix in mantos 0.5 to 3.0 m long and 10 to 20 cm thick
Geologic province: Altipano
Geologic subprovince: Uyuni Domain
Commodities: Cu; Ag; As; Pb; Zn; U
Mineralization styles: stratabound replacement; fracture fillings
Geological ages: Late Oligocene - Middle Miocene (host rocks)
Tectonic setting: continental basin-foreland (host rocks)
Coincident features: stratigraphic unconformity (beneath low-angle unconformity with tuff)
Regional tectonic structure: unconformity
regional folding (northeast-trending anticlines and synclines)
Host rocks: (1) sedimentary; sandstone; Magma series/sedimentary package/metamorphic group: red bed
Individual lithologies:sandstone
lutite (red)
Host rock stratigraphy:Lower Quehua Formation
Qualified comments: (Applies to: miscellaneous comments) chalcocite has replaced sandstone matrix in mantos 0.5 to 3.0 m long and 10 to 20 cm thick; copper deposits in redbed sandstone and minor red shale; sandstone is deformed by a series of northeast-trending anticlines and synclines
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

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.

450,000 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: reserve
Grade-commodity information:Cu: 5 percent
Reference: Bassi, H. G. L., 1980: Inspecciones Mineras en dos Yacmientos Cupriferos Estraformes del Suroeste de Bolivia; Actas del Congreso Geológico Argentino, Volume 3, p. 13 - 23
Percent weights allocated to deposit: 100.0%
Associated mine(s): Avaroa Mine (78)

Generated 2015-01-27 17:26:21 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
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