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): |
Ana Maria |
Longitude / Latitude: |
-68.88750 / -16.60833 |
Political location(s): |
Bolivia; Province or state: Oruro; Nearest community: Jankomarca |
Deposit clan (type): |
sediment-hosted copper |
Deposit (sub) types: |
continental redbed; chalcocite, malachite and azurite as replacements of fossil plants in sandstone |
Geologic province: |
Altiplano |
Geologic subprovince: |
Ulloma Domain |
Commodities: |
Cu |
Geological ages: |
Early Tertiary (host rocks) |
Tectonic setting: |
continental basin-foreland; transpressive (host rocks) |
Coincident features: |
organic matter (fossil plants) |
Host rocks: |
(1) sedimentary; sandstone-siltstoneHost rock stratigraphy: | Huayllamarca Formation |
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Qualified comments: |
(Applies to: miscellaneous comments) chalcocite, malachite and azurite as replacements of fossil plants in sandstone; lenses up to 80 cm thick; strata are folded into NW-trending anticline |
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 |
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Production data: |
Report period: from 1959 until 1967; 485 metric ton ore and conc; Provisional entry?: yes; Yearly or summary?: SGrade-commodity information: | Cu: 3 percent | Reference: Guerra, M.; Ascarrunz, K. R., 1964: Informe Sobre Orientacion Tecnica Mina Cuprifera Ana Maria; Informe, Bolivia Departamento Nacional de Geologia, Publication code DNG-M-337, 6 p. Percent weights allocated to deposit: 100.0%
Report period: from 1959 until 1967; 485 metric ton ore and conc; Provisional entry?: yesGrade-commodity information: | Cu: 10 percent | Reference: Vargas, W., 1967: Valuacion de Yacimientos de Cobre, Primera Parte, Corocoro-Guaqui; Informe, Servicio Geologico de Bolivia, Publication code LP-24, 36 p. Percent weights allocated to deposit: 100.0% |
Associated mine(s): |
Ana Maria Mine (8) |