Supergene leaching and formation of platinum in alluvium: Evidence from Serro, Minas Gerais, Brazil

Mineralogy and Petrology

Volumn 90, Issue 1-2, 2007, Pages 141-150

  Cabral, A R ^a   Beaudoin, G ^a   Choquette, M ^a   Lehmann, B ^b   Polonia J C ^c  

^a UNIVERSITÉ LAVAL   (Canada)

^b CLAUSTHAL UNIVERSITY OF TECHNOLOGY   (Germany)

^c NONE

Author keywords

[No Author keywords available]

Indexed keywords

ALLUVIAL DEPOSIT; LEACHING; PALLADIUM; PLATINUM; SUPERGENE PROCESS; WEATHERING;

BRAZIL; MINAS GERAIS;

EID: 34247887425     PISSN: 09300708     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00710-006-0171-3     Document Type: Article

References (45)

1. Atencio D (2000) Type mineralogy of Brazil. Instituto de Geociências, Universidade de São Paulo, São Paulo, Brazil
2. AY Barkov ME Fleet GT Nixon VM Levson 2005 Platinum-group minerals from five placer deposits in British Columbia, Canada Can Mineral 43 1687-1710
3. 2O Acta Chemica Scandinavica 14 717-725
4. JFW Bowles 1986 The development of platinum-group minerals in laterites Econ Geol 81 1278-1285
5. Cabral AR (in press) Palladiferous gold mineralisation (ouro preto) in Brazil: Gongo Soco, Itabira and Serra Pelada. Sonderhefte Reihe D, Geol Jahrb, Heft 8, E. Schweizerbart'sche, Stuttgart
6. AR Cabral B Lehmann 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) Mineral Mag 67 453-463 10.1180/0026461036730110
7. AR Cabral B Lehmann D Grambole F Herrmann 2004 Hydrogen in a natural Pd-O compound from Gongo Soco, Minas Gerais, Brazil Can Mineral 42 689-694
8. AR Cabral G Beaudoin R Kwitko-Ribeiro B Lehmann JC Polônia M Choquette 2006 Platinum-palladium nuggets and mercury-rich palladiferous platinum from Serro, Minas Gerais, Brazil Can Mineral 44 385-397
9. LJ Cabri DC Harris 1975 Zoning in Os-Ir alloys and the relation of the geological and tectonic environment of the source rocks to the bulk Pt: Pt +Ir + Os ratio for placers Can Mineral 13 266-274
10. LJ Cabri DC Harris TW Weiser 1996 Mineralogy and distribution of platinum-group mineral (PGM) placer deposits of the world Explor Min Geol 5 73-167
11. JP Cassedanne JN Alves 1992 Palladium and platinum from Córrego Bom Sucesso, Minas Gerais, Brazil Mineral Rec 23 471-474
12. Cassedanne JP, Cassedanne JO (1974) As aluviões platiníferas de Serro (MG). XXVIII Congresso Brasileiro de Geologia, Anais, 6, Porto Alegre, pp 33-47
13. JP Cassedanne J Jedwab JN Alves 1996 Apport d'une prospection systématique à l'étude de l'origine de l'or et du platine alluviaux du Córrego Bom Sucesso (Serro - Minas Gerais) An Acad Bras Ci 68 569-582
14. CA Cousins ED Kinloch 1976 Some observations on textures and inclusions in alluvial platinoids Econ Geol 71 1377-1398
15. GA Desborough 1970 Silver depletion indicated by microanalysis of gold from placer occurrences, western United States Econ Geol 65 304-311
16. ME Fleet CM de Almeida N Angeli 2002 Botryoidal platinum, palladium and potarite from the Bom Sucesso stream, Minas Gerais, Brazil: compositional zoning and origin Can Mineral 40 341-355
17. Ph Freyssinet H Zeegers Y Tardy 1989 Morphology and geochemistry of gold grains in lateritic profiles of southern Mali J Geochem Explor 32 17-31 10.1016/0375-6742(89)90041-1
18. WA Fuchs AW Rose 1974 The geochemical behavior of platinum and palladium in the weathering cycle in the Stillwater Complex, Montana Econ Geol 69 332-346
19. SS Gornostayev JH Crocket AG Mochalov KVO Laajoki 1999 The platinum-group minerals of the Baimka placer deposits, Aluchin Horst, Russian Far East Can Mineral 37 1117-1129
20. JC Groen JR Craig JD Rimstidt 1990 Gold-rich rim formation on electrum grains in placers Can Mineral 28 207-228
21. Av Humboldt 1826 Ueber die Lagerung des Platins Annalen der Physik 83 515-520
22. E Hussak 1904 Über das Vorkommen von Palladium und Platin in Brasilien Sitzungsberichte der mathematisch-naturwissenschaftlichen Klasse der Kaiserlichen Akademie der Wissenschaften 113 379-466
23. E Hussak 1906 Über das Vorkommen von Palladium und Platin in Brasilien Zeitschrift für praktische Geologie 14 284-293
24. JB Knight SR Morison JK Mortensen 1999 The relationship between placer gold particle shape, rimming, and distance of fluvial transport as exemplified by gold from the Klondike district, Yukon Territory, Canada Econ Geol 94 635-648
25. KB Krauskopf DK Bird 1995 Introduction to geochemistry McGraw-Hill Boston
26. RE Krupp T Weiser 1992 On the stability of gold-silver alloys in the weathering environment Miner Deposita 27 268-275 10.1007/BF00193397
27. R Kwitko AR Cabral B Lehmann JHG Laflamme LJ Cabri AJ Criddle HF Galbiatti 2002 Hongshiite (PtCu) from itabirite-hosted Au-Pd-Pt mineralization (jacutinga), Itabira district, Minas Gerais, Brazil Can Mineral 40 711-723
28. KN Malitch OAR Thalhammer 2002 Pt-Fe nuggets derived from clinopyroxenite-dunite massifs, Russia: A structural, compositional and osmium-isotope study Can Mineral 40 395-418
29. F Melcher T Oberthür J Lodziak 2005 Modification of detrital platinum-group minerals from the eastern Bushveld complex, South Africa Can Mineral 43 1711-1734
30. Oberthür T (2002) Platinum-group element mineralization of the Great Dyke, Zimbabwe. In: Cabri LJ (ed) The geology, geochemistry, mineralogy and mineral beneficiation of platinum-group elements. CIM Spec Vol 54, pp 483-506
31. T Oberthür TW Weiser L Gast 2003 Geochemistry and mineralogy of platinum-group elements at Hartley Platinum Mine, Zimbabwe. Part 2: Supergene redistribution in the oxidized Main Sulfide Zone of the Great Dyke, and alluvial platinum-group minerals Miner Deposita 38 344-355
32. T Oberthür F Melcher L Gast C Wöhrl J Lodziak 2004 Detrital platinum-group minerals in rivers draining the eastern Bushveld complex, South Africa Can Mineral 42 563-582
33. J Ottemann SS Augustithis 1967 Geochemistry and origin of "platinum-nuggets" in lateritic covers from ultrabasic rocks and birbirites of W. Ethiopia Miner Deposita 1 269-277 10.1007/BF00205201
34. DC Sassani EL Shock 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 2643-2671 10.1016/S0016-7037(98)00049-0
35. EF Stumpfl M Tarkian 1976 Platinum genesis: New mineralogical evidence Econ Geol 71 1451-1460
36. CE Suh B Lehmann 2003 Morphology and electron-probe microanalysis of residual gold grains at Dimako, Southeast Cameroon N Jahrb Mineral Monatsh 2003 255-275 10.1127/0028-3649/2003/2003-0255
37. ND Tolstykh AP Krivenko 1998 Native high-purity platinum, its origin, and the nomenclature of Pt-Fe alloys Dokl Earth Sci 361A 775-777
38. CAC Varajão F Colin P Vieillard AJ Melfi D Nahon 2000 Early weathering of palladium gold under lateritic conditions, Maquiné Mine, Minas Gerais, Brazil Applied Geochem 15 245-263 10.1016/ S0883-2927(99)00038-4
39. D Vlassopoulos SA Wood 1990 Gold speciation in natural waters: I. Solubility and hydrolysis reactions of gold in aqueous solution Geochim Cosmochim Acta 54 3-12 10.1016/0016-7037(90)90189-R
40. 2O at 25 °C and 1 atm Geochim Cosmochim Acta 50 1837-1845 10.1016/0016-7037(86)90242-5
41. Weiser TW (2002) Platinum-group minerals (PGM) in placer deposits. In: Cabri LJ (ed) The geology, geochemistry, mineralogy and mineral beneficiation of platinum-group elements. CIM Spec Vol 54, pp 721-756
42. WH Wollaston 1809 On platina a nd native palladium from Brazil Philosophical Transactions 99 189-194
43. 2+ at 25 °C from the solubility of Pt and Pd in aqueous hydroxide solutions Geochim Cosmochim Acta 55 1759-1767 10.1016/0016-7037(91)90021-V
44. SA Wood BW Mountain BJ Fenlon 1989 Thermodynamic constraints on the solubility of platinum and palladium in hydrothermal solutions: reassessment of hydroxide, bisulfide, and ammonia complexing Econ Geol 84 2020-2028
45. SA Wood BW Mountain Y Pan 1992 The aqueous geochemistry of platinum, palladium and gold: Recent experimental constraints and a re-evaluation of theoretical predictions Can Mineral 30 955-982