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Olivo, G. R., Gauthier, M., Bardoux, M. (1994) Palladian gold from the cauê iron mine, Itabira District, Minas Gerais, Brazil. Mineralogical Magazine, 58 (393) 579-587 doi:10.1180/minmag.1994.058.393.05

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Reference TypeJournal (article/letter/editorial)
TitlePalladian gold from the cauê iron mine, Itabira District, Minas Gerais, Brazil
JournalMineralogical MagazineISSN0026-461X
AuthorsOlivo, G. R.Author
Gauthier, M.Author
Bardoux, M.Author
Year1994 (December)Volume58
Issue393
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_58/58-393-579.pdf+
DOIdoi:10.1180/minmag.1994.058.393.05Search in ResearchGate
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Mindat Ref. ID2081Long-form Identifiermindat:1:5:2081:1
GUID0
Full ReferenceOlivo, G. R., Gauthier, M., Bardoux, M. (1994) Palladian gold from the cauê iron mine, Itabira District, Minas Gerais, Brazil. Mineralogical Magazine, 58 (393) 579-587 doi:10.1180/minmag.1994.058.393.05
Plain TextOlivo, G. R., Gauthier, M., Bardoux, M. (1994) Palladian gold from the cauê iron mine, Itabira District, Minas Gerais, Brazil. Mineralogical Magazine, 58 (393) 579-587 doi:10.1180/minmag.1994.058.393.05
In(1994, December) Mineralogical Magazine Vol. 58 (393) Mineralogical Society
Abstract/NotesAbstractPalladian gold from the Cauê iron mine, Itabira District, Minas Gerais, Brazil is found in horizons of hydrothermally-altered Lake Superior-type oxide-facies iron-formation locally called jacutinga. Palladium content of the gold grains varies from 1% to 20%, high palladium values being associated with palladium-copper-oxide inclusions and showing island-mainland and replacement (relict) textures in the Corpo Y and Corpo X orebodies. In the Aba Leste orebody, palladium is homogeneously distributed throughout the gold grains.Palladium and gold mineralization was synchronous with intense D1 shearing. Palladium was deposited early during the generation of S1-mylonitic foliation, and was replaced by gold during progressive deformation.At high oxygen fugacities (hematite stability field) and high temperatures (up to 600°C) Pd and Au may have been transported as chloride complexes, and their deposition may have occurred mainly as a result of changes in pH, but dilution of Cl concentrations may have also caused Pd and Au precipitation. Deposition of Pd as selenide may have taken place early during the creation of S1-fabrics.

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LocalityCitation Details
Cauê mine, Itabira, Minas Gerais, Brazil

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MineralCitation Details
Palladium-bearing Gold

Mineral Occurrences

LocalityMineral(s)
Cauê mine, Itabira, Minas Gerais, Brazilⓘ Apatite, ⓘ Carbonate, ⓘ Feldspar Group, ⓘ Goethite, ⓘ Monazite Group, ⓘ Native Gold, ⓘ Palladium-bearing Gold

See Also

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Olivo, Gema Ribeiro, Gauthier, Michel (1995) Palladium minerals from the Cauê iron mine, Itabira District, Minas Gerais, Brazil. Mineralogical Magazine, 59 (396) 455-463 doi:10.1180/minmag.1995.059.396.07
Davis, R. J., Clark, A. M., Criddle, A. J. (1977) Palladseïte, a new mineral from Itabira, Minas Gerais, Brazil. Mineralogical Magazine, 41 (317) 123 doi:10.1180/minmag.1977.041.317.18
Clark, A. M., Criddle, A. J., Fejer, E. E. (1974) Palladium arsenide-antimonides from Itabira, Minas Gerais, Brazil. Mineralogical Magazine, 39 (305). 528-543 doi:10.1180/minmag.1974.039.305.05
Raphael Cabral, A., Lehmann, B. (2003) A two-stage process of native palladium formation at low temperatures: evidence from a palladian gold nugget (Gongo Soco iron ore mine, Minas Gerais, Brazil) Mineralogical Magazine, 67 (3) 453-463 doi:10.1180/0026461036730110
Cabral, A. R., Lehmann, B., Kwitko, R., Galbiatti, H. F., Pereira, M. C. (2002) Palladseite and its oxidation: evidence from Au-Pd vein-type mineralization (jacutinga), Cauê iron-ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil. Mineralogical Magazine, 66 (2) 327-336 doi:10.1180/0026461026620033
Cabral, A. R., Lehmann, B., Galbiatti, H. F., Rocha Filho, O. G. (2006) Evidence for metre-scale variations in hematite composition within the Palaeoproterozoic Itabira Iron Formation, Minas Gerais, Brazil. Mineralogical Magazine, 70 (5) 591-602 doi:10.1180/0026461067050352
Olivo, G.R., Gauthier, M., Gariépy, C., Carignan, J. (1996) Transamazonian tectonism and Au-Pd mineralization at the Cauê Mine, Itabira District, Brazil: Pb isotopic evidence. Journal of South American Earth Sciences, 9 (3) 273-279 doi:10.1016/0895-9811(96)00013-2
Olivo, Gema Ribeiro, Gauthier, Michel, Bardoux, Marc, Leao de Sa, Euripides, Fonseca, Jose Teotonio F., Santana, Fernando Carbonari (1995) Palladium-bearing gold deposit hosted by Proterozoic lake superior-type iron-formation at the Caue iron mine, Itabira District, southern Sao Francisco Craton, Brazil; geologic and structural controls; reply. Economic Geology, 90 (8) 2372-2374 doi:10.2113/gsecongeo.90.8.2372
Olivo, Gema Ribeiro, Gauthier, Michel, Bardoux, Marc, Leao de Sa, Euripedes, Fonseca, Jose Teotonio F., Santana, Fernando Carbonari (1995) Palladium-bearing gold deposit hosted by Proterozoic lake superior-type iron-formation at the Caue iron mine, Itabira District, southern Sao Francisco Craton, Brazil; geologic and structural controls. Economic Geology, 90 (1) 118-134 doi:10.2113/gsecongeo.90.1.118
(1994) Errata. Mineralogical Magazine, 58 (393) doi:10.1180/minmag.1994.058.393.32
Alexandre Raphael Cabral, Georges Beaudoin, Bernd Lehmann, Henry Francisco Galbiatti (2005) S/Se ratios in palladiferous gold coexisting with palladseite, Cauê iron ore deposit, Itabira district, Quadrilátero Ferrífero of Minas Gerais, Brazil. GEOCHMISTRY, MINERALOGY AND PETROLOGY • 4 3 • SOFIA • 2005 pp35-40
 
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