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Palladium-oxygenated compounds of the Gongo Soco mine, Quadrilátero Ferrífero, central Minas Gerais, Brazil

Published online by Cambridge University Press:  05 July 2018

A. Raphael Cabral ,
B. Lehmann ,
R. Kwitko ,
R. D. Jones ,
F. R. M. Pires ,
O. G. Rocha Filho  and
M. D. Innocentini
A. Raphael Cabral*
Affiliation:
Institut für Mineralogie und Mineralische Rohstoffe, Technische Universität Clausthal, Adolph-Roemer-Str. 2A, D-38678 Clausthal-Zellerfeld, Germany
B. Lehmann
Affiliation:
Institut für Mineralogie und Mineralische Rohstoffe, Technische Universität Clausthal, Adolph-Roemer-Str. 2A, D-38678 Clausthal-Zellerfeld, Germany
R. Kwitko
Affiliation:
Centro de Desenvolvimento Mineral, Companhia Vale do Rio Doce, Rodovia BR 262 / km 296 – Caixa Postal 09, 33030-970 Santa Luzia-MG, Brazil
R. D. Jones
Affiliation:
1636 East Skyline Drive, Tucson, AZ 85178, USA
F. R. M. Pires
Affiliation:
Departamento de Geologia, Universidade Federal do Rio de Janeiro, Cidade Universitária, 21949-900 Rio de Janeiro-RJ, Brazil
O. G. Rocha Filho
Affiliation:
Mineração Socoimex Ltda., Fazenda Gongo Soco, Caixa Postal 42, 34800-000 Caeté-MG, Brazil
M. D. Innocentini
Affiliation:
Mineração Socoimex Ltda., Fazenda Gongo Soco, Caixa Postal 42, 34800-000 Caeté-MG, Brazil
*
*E-mail: cabral@min.tu-clausthal.de
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Abstract

New data on the Gongo Soco palladium-oxygenated compounds are presented for the first time since the work of Johnson and Lampadius (1837). A variety of PdO species is documented, always in association with Cu, Fe and Mn, and includes Pd(OH)2 or PdO.H2O, and phases with metal excess in relation to oxygen, interpreted as metastable. Their remarkable occurrence in ‘ouro preto’ (black gold) and jacutinga (auriferous itabirite/iron ore) is the result of mertieite-II alteration. It involves leaching of Sb and As, limited removal of Pd, and incorporation of Cu, Mn and Hg into PdO species. The locus of Hg-bearing PdO species in microfractures parallel to the enclosing gold-mineralized shear band suggests at least one low-temperature hydrothermal generation. The presence of a halite crystal attached to gold testifies to the involvement of Cl-saturated hydrothermal fluids in the oxidizing environment of jacutinga formation.

Keywords

PdO speciesmertieite-IIjacutinga‘ouro preto’Gongo SocoItabira Iron FormationQuadrilátero FerríferoBrazil
Type
Research Article
Information
Mineralogical Magazine , Volume 65 , Issue 2 , April 2001 , pp. 169 - 179
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2001

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References

Alkmim, F.F. and Marshak, S. (1998) Transamazonian orogeny in the Southern São Francisco craton region, Minas Gerais, Brazil: evidence for Paleoproterozoic collision and collapse in the Quadrilátero Ferrífero. Precamb. Res., 90, 29–58.CrossRefGoogle Scholar
Augé, T. and Legendre, O. (1994) Platinum-group element oxides from the Pirogues ophiolitic mineralization, New Caledonia: Origin and significance. Econ. Geol., 89, 1454–68.CrossRefGoogle Scholar
Babinski, M., Chemale, F. Jr. and Van Schmus, W.R. (1995) The Pb/Pb age of the Minas Supergrouficarbonate rocks, Quadrilátero Ferrífero, Brazil. Precamb. Res., 72, 235–45.CrossRefGoogle Scholar
Cabral, A.R. (1996) Mineralização de ouro paladiado em itabiritos: a jacuting a de Gongo Soco, Quadrilátero Ferrífero, Minas Gerais. MSc thesis, Universidade Estadual de Campinas, Campinas, Brazil.Google Scholar
Cabri, L.J., Gilles, J.H., Laflamme, J.H.G., Stewart, J.M., Rowland, J.F. and Chen, T.T. (1975) New data on some palladium arsenides and antimonides. Canad. Miner., 13, 321–35.Google Scholar
Cabri, L.J., Clark, A.M. and Chen, T.T. (1977) Arsenopalladinite from Itabira, Brazil, and from the Stillwater complex, Montana. Canad. Miner., 15, 70–3.Google Scholar
Cabri, L.J., Criddle, A.J., Laflamme, J.H.G., Bearne, G.S. and Harris, D.C. (1981) Mineralogical study of complex Pt-Fe nuggets from Ethiopia. Bull. Minéral., 104, 508–25.CrossRefGoogle Scholar
Carvalho da Silva, J., Roeser, U., Schulz-Dobrik, B. and Tobschall, H.J. (1985) Ouro Paladiado of the Mineralogical Museum, Ouro Preto, MG, revisited – new electron microprobe analyses. III Simp. Bras. Geoquímica, Boletim de Resumos. Ouro Preto, 09.Google Scholar
Chemale, F. Jr., Rosière, C.A. and Endo, I. (1994) The tectonic evolution of the Quadrilátero Ferrífero, Minas Gerais, Brazil. Precamb. Res., 65, 25–54.CrossRefGoogle Scholar
Clark, A.M., Criddle, A.J. and Fejer, E.E. (1974) Palladium arsenide-antimonides from Itabira, Minas Gerais, Brazil. Mineral. Mag., 39, 528–43.CrossRefGoogle Scholar
Desborough, G.A., Finney, J.J. and Leonard, B.J. (1973) Mertieite, a new mineral from Goodnews Bay, Alaska. Amer. Mineral., 58, 1–10.Google Scholar
Dorr, J.V.N. (1964) Supergene iron ores of Minas Gerais, Brazil. Econ. Geol., 59, 1203–40.CrossRefGoogle Scholar
Dorr, J.V.N. (1969) Physiographic, stratigraphic and structural development of the Quadrilátero Ferrífero, Minas Gerais, Brazil. USGS Prof. Paper, 641-A, 110 pp.Google Scholar
Elvy, S.B., Gray, N.D., McAndrew, J., Williams, P.A. and French, D.R. (1998) Platinum group minerals from the Broken Hill district, New South Wales. Austral. J. Mineral., 4, 33–9.Google Scholar
Galbiatti, H.F. (1999) Natureza e controle estrutural da mineralização aurífera (jacutinga) na mina do Cauê, Itabira, MG. MSc thesis, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.Google Scholar
Gardner, D. (1826) In Imperial Brazilian Mining Association – Reports of the directors addressed to the share-holders. London, 128 p.Google Scholar
Gardner, D. (1827) In Imperial Brazilian Mining Association – Second annual report of the directors addressed to the share-holders on the 2nd March, 1827 and an appendix. London, 79 p.Google Scholar
Gorceix, H. (1881) Estudo chimico e geologico do centro da provincia de Minas Geraes. Annaes da Escola de Minas de Ouro Preto, 1, 1–12.Google Scholar
Guimarães, D. (1970) Arqueogênese do ouro na região central de Minas Gerais. DNPM/DFPM, Boletim 139. Rio de Janeiro, 51 p.Google Scholar
Harder, E.C. and Chamberlin, R.T. (1915) The geology of central Minas Gerais, Brazil. J. Geol., 23, 341–78.CrossRefGoogle Scholar
Henwood, W.J. (1871) On the gold mines of Minas Geraes, Brazil. Trans. Royal Geol. Soc. Cornwall, 8, 168–370.Google Scholar
Hussak, E. (1906) O palladio e a platina no Brazil. Annaes da Escola de Minas de Ouro Preto, 8, 77–189.Google Scholar
Jedwab, J. (1995) Oxygenated platinum-group-element and transition-metal (Ti, Cr, Mn, Fe, Co, Ni) compounds in the supergene domain. Chron. Rech. Min., 520, 47–53.Google Scholar
Jedwab, J. (1997) Minéralogie des métaux du groupe du platine au Shaba, Zaire. Mém. Acad. R. Sci. Outre-Mer., 325 55.Google Scholar
Jedwab, J. and Cassedanne, J. (1998) Historical observations on oxygen-bearing compounds of platinum and palladium in Minas Gerais, Brazil. Canad. Mineral., 36, 887–93.Google Scholar
Jedwab, J., Cassedanne, J., Criddle, A.J., Ry, P. du, Ghysens, G., Meisser, N., Piret, P. and Stanley, C.J. (1993) Rediscovery of palladinite PdO from Itabira (Minas Gerais, Brazil) and from Ruwe (Shaba, Zaire). Terra Nova. Abstract Supplement., 2, 22.Google Scholar
Johnson, P.N. and Lampadius, W.A. (1837) Ueber brasilianisches Palladgold und dessen Ausbringen und Scheidung. J. Praktische Chemie, 11, 309–15.Google Scholar
Klein, C. and Ladeira, E.A. (2000) Geochemistry and petrology of some Proterozoic banded iron-formations of the Quadrilátero Ferrífero, Minas Gerais, Brazil. Econ. Geol., 95, 405–28.CrossRefGoogle Scholar
Krupp, R. (1988) Physicochemical aspects of mercury metallogenesis. Chem. Geol., 69, 345–56.CrossRefGoogle Scholar
Kumar, J. and Saxena, R. (1989) Formation of NaCl-and Cu2O-type oxides of platinum and palladium oficarbon and alumina support films. J. Less-Common Metals, 147, 59–71.CrossRefGoogle Scholar
Ladeira, E.A. (1988) Metalogenia dos depósitos de ouro do Quadrilátero Ferrífero, Minas Gerais. Pp. 301-75 in: Principais depósitos minerais do Brasil volume II. (Schobbenhaus, C. and Coelho, C.E.S., editors). DNPM/CVRD, Brasília.Google Scholar
Marshak, S. and Alkmim, F.F. (1989) Proterozoic extension/contraction tectonics of the southern São Francisco Craton region. Tectonics, 8, 555–71.CrossRefGoogle Scholar
Marshak, S., Alkmim, F.F. and Jordt-Evangelista, H. (1992) Proterozoic crustal extension and the generation of dome-and-keel structure in an Archaean granite-greenstone terrain. Nature, 357, 491–3.CrossRefGoogle Scholar
McDonald, I., Ohnenstetter, D., Ohnenstetter, M. and Vaughan, D.J. (1999 a) Palladium oxides in ultramafic complexes ne ar Lavat rafo, Western Adriamena, Madagascar. Mineral. Mag. 63, 345–52.CrossRefGoogle Scholar
McDonald, I., Ohnenstetter, D., Rowe, J.P., Tredoux, M., Pattrick, R.A.D. and Vaughan, D.J. (1999 b) Platinum precipitation in the Waterberg deposit, Naboomspruit, South Africa. S. Afr. J. Geol. 102, 184–91.Google Scholar
Moore, S.L. (1969) Geology and ore deposits of Antônio dos Santos, Gongo Soco and Conceição do Rio Acima quadrangles, Minas Gerais, Brazil. USGS Prof. Pape. 341-I, 48 p.Google Scholar
Nixon, G.T., Cabri, L.J. and Laflamme., J.H.G. (1990) Platinum-group-element mineralization in lode and placer deposits associated with the Tulameen Alaskan-type complex, British Columbia. Canad. Mineral., 28, 503–35.Google Scholar
Oliveira, E.P. (1932) Genesis of the deposits of auriferous jacutinga. Econ. Geol. 32, 744–9.CrossRefGoogle Scholar
Olivo, G.R. and Gammons, C. H. (1996) Thermodynamic and textural evidences for at least two stages of Au-Pd mineralization at the Cauê iron mine, Itabira district, Brazil. Canad. Mineral. 34, 547–57.Google Scholar
Olivo, G.R. and Gauthier, M. (1995) Palladium minerals from the Cauê iron mine, Itabira district, Minas Gerais, Brazil. Mineral. Mag., 59, 455–63.CrossRefGoogle Scholar
Olivo, G.R., Gauthier, M., Bardoux, M., Sá, E.L. de, Fonseca, J.T.F. and Santana, F.C. (1995) Palladiumbearing gold deposit hosted by Proterozoic Lake Superior-type iron-formation at the Cauê iron mine, Itabira district, southern São Francisco craton, Brazil: Geologic and structural controls. Econ. Geol., 90, 118–34.CrossRefGoogle Scholar
Paiva, G. (1933) Jazida de ouro de Gongo Soco, MG. Engenharia, Mineraçãoe Metalurgia., 37, 109–13.Google Scholar
Pires, F.R.M. (1995) Textural and mineralogical variations during metamorphism of the Proterozoic Itabira Iron Formation in the Quadrilátero Ferrífero, Minas Gerais, Brazil. An. Acad. Bras. Ciências, 67, 77–105.Google Scholar
Prichard, H.M., Ixer, R.A., Lord, R.A., Maynard, J. and Williams, N. (1994) Assemblages of platinum-group minerals and sulfides in silicate lithologies and chromite-rich rocks within the Shetland ophiolite. Canad. Mineral., 32, 271–94.Google Scholar
Renger, F.E., Noce, C.M., Romano, A.W. and Machado, N. (1994) Evolução sedimentar do Supergrupo Minas: 500 ma. de regist rogeológico no Quadrilátero Ferrífero, Minas Gerais, Brasil. Geonomos, 2, 1–11.Google Scholar
Roeser, H., Schuermann, K. and Tobschall, H.J. (1991) The black palladium gold of the Iron Quadrangle, Minas Gerais, Brazil, revisited. Pp. 411–3 in: Brazil Gold '91 (Ladeira, E.A., editor ). Balkema, Rotterdam.Google Scholar
Salpéteur, I., Martel-Jantin, B. and Rakotomanana, D. (1995) Pt and Pd mobility in ferralitic soils of the West Adriamena area (Madagascar). Evidence of a supergene origin of some Pt and Pd minerals. Chron. Rech. Min., 520, 27–45.Google Scholar
Sassani, D.C. and Shock, E.L. (1998) Solubility and transport of platinum-group elements in supercritical fluids: Summary and estimates of thermodynamic properties for ruthenium, rhodium, palladium, and platinum solids, aqueous ions, and complexes to 1000°C and 5 kbar. Geochim. Cosmochim. Acta, 62, 2643–71.CrossRefGoogle Scholar
Shikina, N.D., Zotov, A.V. and Kartashova, L.F. (1988) The behaviour of Sb in the Sb-H2O-H2 system at elevated temperatures. Geochem. Int., 25, 105–9.Google Scholar
Siegers, A. and Renger, F.E. (1985) Gold mining in Brazil. Erzmetal. 38, 351–8.Google Scholar
Varajão, C.A.C. (1994) Evolution supergène de l’or riche en palladium de la mine de Maquiné, Quadrilatère Ferrifère, Minas Gerais, Brási. PhD thesis, Faculté de Sciences et Techniques de Saint-Jerome, France.Google Scholar
Weiser, T. (1990) The quantitative proof of the existence of PGE-oxides. 6th Int. Platinum Symp. Perth, Abstracts, p. 52.Google Scholar
Wood, S.A. (1991) Experimental determinations of the hydrolysis constants of Pt2+ and Pd2+ at 25°C from the solubility of Pt and Pd in aqueous hydroxide solutions. Geochim. Cosmochim. Acta, 55, 1759–67.CrossRefGoogle Scholar
Wood, S.A. and Samson, I.M. (1998) Solubility of ore minerals and complexation of ore metals in hydrothermal solutions. Rev. Econ. Geol., 10, 33–80.Google Scholar