Database name: |
World Fe-oxide+/-Cu-Au-U (IOCG) deposits |
Compilers: |
Sunil S. Gandhi |
Release date: |
2015-03-04 |
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Deposit name(s): |
Alemao; Igarape Bahia; Alemão |
Political location(s): |
Brazil; Province or state: Para |
Deposit clan (type): |
Olympic Dam-type |
Geologic province: |
Brazilian Shield |
Geologic subprovince: |
Carajas Mineral Province |
Commodities: |
Fe; Cu; Au |
Mineralization styles: |
breccia; massive |
Coincident features: |
lithological contact (between lower volcaniclastics and upper clastic metasediments); Coincident feature name: Igarape Bahia Group |
Host rocks: |
(1) volcanic; intermediate-felsic volcanic rocks (volcaniclastics)Host rock stratigraphy: | Igarape Bahia Group-lower |
(2) volcanic; unclassified volcanic rocksHost rock protoliths: | unclassified volcano-sedimentary rocks | Individual lithologies: | volcaniclastic rock | Host rock stratigraphy: | Igarape Bahia Group-upper |
(3) sedimentary; unclassified sedimentary rocks (volcaniclastic rocks)Host rock protoliths: | unclassified volcano-sedimentary rocks |
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Metallogenic signatures: |
Fe-Cu-Au-U-REE |
Alteration signatures: |
sulphide alteration: chalcopyrite > bornite Fe-rich alteration potassic alteration chloritization carbonatization |
Deposit shape: |
tabular |
References: |
Barreira, C. F.; Soares, A. D. V.; Ronze, P. C., 1999 |
Descoberta Do Deposito Cu-Au Alemao - Provincia Mineral de Carajas |
in Boletim de Resumos Expandidos: VI Symposio de Geologia da Amazonia; Manaus-Amazonas, 13 a 17 de Junho de 1999, Edited by Anonymous, Sociedade Brasileira de Geologia, Nucleo Norte, Sociedade Brasileira de Geologia, 596 p, p. 136 - 139 |
Soares, A. D. V.; Ronze, P. C.; Santos, M. G. S.; Leal, E. D., 1999 |
Geologia E Mineralizacoes Do Deposito de Cu-Au Alemao - Provincia Mineral de Carajas (PA) |
in Boletim de Resumos Expandidos: VI Symposio de Geologia da Amazonia; Manaus-Amazonas, 13 a 17 de Junho de 1999, Edited by Anonymous, Sociedade Brasileira de Geologia, Nucleo Norte, Sociedade Brasileira de Geologia, 596 p, p. 144 - 147 |
Tazava, E.; Oliveira, C. G., 2000 |
The Igarape Bahia Au-Cu-(REE-U) Deposit, Carajas Mineral Province, Northern Brazil |
in Proceedings of International Conference on Hydrothermal Iron-Oxide Copper-Gold and Related Deposits: A Global Perspective; Perth, Australia; December 4-5, 2000, Edited by Anonymous, Australian Mineral Foundation Inc., Australian Mineral Foundation Inc., 63 Conyngham Street, Glenside 5065, South Australia, p. 9 - 10 |
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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. |
Estimate date: 2000; 170 million metric tons ore; Combined with production?: no; Provisional entry?: yes; Resource category: total resourceGrade-commodity information: | Cu: 1.5 percent Au: 0.8 grams/metric ton | Reference: Ronze, P. C.; Soares, A. D. V.; Santos, M. G. S.; Barreira, C. F., 2000: Alemao Copper-Gold-(-U-REE) Deposit, Carajas, Brazil; in Proceedings of International Conference on Hydrothermal Iron-Oxide Copper-Gold and Related Deposits: A Global Perspective; Perth, Australia; December 4-5, 2000, Edited by Anonymous, Australian Mineral Foundation Inc., Australian Mineral Foundation Inc., 63 Conyngham Street, Glenside 5065, South Australia, p. 9 - 9 Percent weights allocated to deposit: 100.0% |