| Au–Pd–Pt MINERALIZATION (JACUTINGA), ITABIRA DISTRICT, MINAS GERAIS, BRAZIL ROGERIO KWITKO§ Centro de Desenvolvimento...Doce, BR 262/ km 296, 33030-970 Santa Luzia – MG, Brazil ALEXANDRE R. CABRAL§ AND BERND LEHMANN Institut...Sul, Companhia Vale do Rio Doce, 35900-900 _Itabira_-MG, Brazil ABSTRACT Hongshiite occurs associated with...with palladian gold, and more rarely with native platinum, in the sulfide-free, hematite-rich jacutinga...mineralization of the Quadrilátero Ferrífero, central Minas Gerais, Brazil. Hongshiite occurs in grains up to about |
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Cabral, A. R., Lehmann, B., Kwitko, R., Jones, R. D. (2002) Palladian gold and palladium arsenide–antimonide minerals from Gongo Soco iron ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil. Applied Earth Science, 111 (1) 74-80 doi:10.1179/aes.2002.111.1.74 |
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| from Gongo Soco iron ore mine, Quadrilátero Ferrífero, Minas Gerais, Brazil Downloaded by [RMIT University...deposit was one of the most famous gold mines in Brazil in the nineteenth century. The iron ore mining...correlated with the platinum content in the associated palladium arsenide–antimonide. Its platinum content, up...ore deposits of the Quadrilátero Ferrífero of Minas Gerais. The soft hematite orebody comprises 66 000...was not only the first major underground gold mine in Brazil but also the most famous of the so-called jacutinga |
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Olivo, G. R., Gauthier, M., Williams-Jones, A. E., Levesque, M. (2001) The Au-Pd Mineralization at the Conceicao Iron Mine, ItabiraDistrict, Southern Sao Francisco Craton, Brazil: An Example of aJacutinga-Type Deposit. Economic Geology, 96 (1) 61-74 doi:10.2113/gsecongeo.96.1.61 |
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| the Conceição Iron Mine, Itabira District, Southern São Francisco Craton, Brazil: An Example of a Jacutinga-Type...H3C 3P8 Abstract The Conceição mine, which is located in the Itabira district, southern São Francisco...an altered Lake Superior-type iron-formation. The mine sequence consists of three metamorphosed lithostratigraphic...between the Au-Pd orebodies at the Conceição and Cauê deposits (referred to as “jacutingatype” deposits)...Examples of this deposit class include the Homestake mine in the United States (Rye and Rye, 1974; Sawkins |
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Galbiatti, H.F., Fonseca, M.A., Pereira, M.C., Polônia, J.C. (2007) Structural control of Au–Pd mineralization (Jacutinga): An example from the Cauê Mine, Quadrilátero Ferrífero, Brazil. Ore Geology Reviews, 32 (3) 614-628 doi:10.1016/j.oregeorev.2005.03.020 |
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| (Jacutinga): An example from the Cauê Mine, Quadrilátero Ferrífero, Brazil H.F. Galbiatti a,⁎, M.A. Fonseca...Rio Doce, Minas de Itabira, Serra do Esmeril S/N, Mina Cauê, 35900-900 Itabira, MG, Brazil b Departamento...Federal de Ouro Preto. 35.400-000, Ouro Preto, MG, Brazil Received 1 December 2001; accepted 31 March 2005...Jacutinga. The main orebodies are hosted within the Cauê Syncline, a SW-verging fold that involves Paleoproterozoic...Paleoproterozoic metasedimentary rocks in the Itabira District, a regional synclinorium with BIFs in the core |
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Cabral, Alexandre Raphael, Lehmann, Bernd (2007) Seleniferous minerals of palladium and platinum from ouro preto-bearing mineralisation in Brazil. Ore Geology Reviews, 32 (3) 681-688 doi:10.1016/j.oregeorev.2005.02.006 |
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| minerals of palladium and platinum from ouro preto-bearing mineralisation in Brazil Alexandre Raphael Cabral...that triggered two major gold rushes in Brazil (Minas Gerais and Serra Pelada). The auriferous mineralisations...mineralisations of Gongo Soco and Itabira, Minas Gerais, and Serra Pelada, Pará, have Pd–O-bearing, dark-coloured...number of seleniferous minerals of palladium and platinum can be found: chrisstanleyite, Ag2Pd3Se4, a phase...ideally Pd17Se15, and sudovikovite, PtSe2, at Itabira; and, exclusively to Serra Pelada, empirical Pd9PtSe2 |
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Vymazalova, A., Laufek, F., Drabek, M., Cabral, A. R., Haloda, J., Sidorinova, T., Lehmann, B., Galbiatti, H. F., Drahokoupil, J. (2012) JACUTINGAITE, Pt2HgSe3, A NEW PLATINUM-GROUP MINERAL SPECIES FROM THE CAUE IRON-ORE DEPOSIT, ITABIRA DISTRICT, MINAS GERAIS, BRAZIL. The Canadian Mineralogist, 50 (2) 431-440 doi:10.3749/canmin.50.2.431 |
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| NEW _PLATINUM_-GROUP MINERAL SPECIES FROM THE CAUÊ IRON-ORE DEPOSIT, ITABIRA DISTRICT, MINAS GERAIS, BRAZIL...Avenida de Ligação 3580, 34000-000 Nova Lima, Minas Gerais, Brazil Jan DRAHOKOUPIL Institute of Physics of...of _platinum_-group mineral discovered at the Cauê iron-ore deposit, Itabira district, Minas Gerais, Brazil...“jacutinga”, in which it occurs. Keywords: jacutingaite, _platinum_-group mineral, Pt–Hg selenide, electron-microprobe...X-ray-diffraction data, crystal structure, Cauê deposit, Minas Gerais, Brazil. § E-mail address: anna.vymazalova@geology |
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Koglin, Nikola, Cabral, Alexandre Raphael, Brunetto, Wilson José, Vymazalová, Anna (2012) Gold–tourmaline assemblage in a Witwatersrand-like gold deposit, Ouro Fino, Quadrilátero Ferrífero of Minas Gerais, Brazil: the composition of gold and metallogenic implications. Neues Jahrbuch für Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry, 189 (3) 263-273 doi:10.1127/0077-7757/2012/0223 |
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| deposit, Ouro Fino, Quadrilátero Ferrífero of Minas Gerais, Brazil: the composition of gold and metallogenic...Moeda Formation of the Minas Supergroup, Quadrilátero Ferrífero of Minas Gerais, Brazil, has visible gold...contents between about 2 and 6 wt.%. Palladium and platinum are insignificant (1 μg/g) in the gold. The...relatively more oxidised rocks of the overlying Itabira Group. Key words: gold, tourmaline, mercury, Ouro...metasedimentary Minas Supergroup of the Quadrilátero Ferrífero of Minas Gerais, Brazil, has gold compositions |
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Cabral, A. R., Lehmann, B., Tupinamba, M., Schlosser, S., Kwitko-Ribeiro, R., de Abreu, F. R. (2009) THE PLATINIFEROUS Au-Pd BELT OF MINAS GERAIS, BRAZIL, AND GENESIS OF ITS BOTRYOIDAL Pt-Pd AGGREGATES. Economic Geology, 104 (8) 1265-1276 doi:10.2113/gsecongeo.104.8.1265 |
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| COMMUNICATIONS THE PLATINIFEROUS Au-Pd BELT OF MINAS GERAIS, BRAZIL, AND GENESIS OF ITS BOTRYOIDAL Pt-Pd AGGREGATES...Xavier 524 s. A4016, 20550-050 Rio Janeiro-RJ, Brazil 4 Curt-Engelhorn-Zentrum 5 Centro Archäometrie...Luzia-MG, Brazil 6 Votorantim Metais, Praça Ramos de Azevedo 206, 01037-010 São Paulo-SP, Brazil Abstract...240-km-long, north-trending Au-Pd-Pt belt in Minas Gerais, Brazil, which hosts hydrothermal Pd-Pt−bearing...its southern part (Quadrilátero Ferrífero and Itabira district) and alluvial Pd-Pt-Au mineralization |
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Drábek, M., Vymazalová, A., Laufek, F. (2014) The system Hg-Pd-Se at 400 °C: phase relations involving tischendorfite and other ternary phases. The Canadian Mineralogist, 52 (4) 763-768 doi:10.3749/canmin.1300037 |
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| England (Paar et al. 1998) and the Musonoi Cu-Co-Mn-U mine in the Democratic Republic of Congo (Roberts et...association of selenides at Minais Gerais and Serra Pelada in Brazil (Davis et al. 1977, Olivo & Corresponding...Au-Pd mineralization, as at the Cauê iron-ore mine, Minas Gerais, Brazil. Karup-Møller et al. (2008) described...as the auriferous mineralization at Itabira, Minas Gerais in Brazil, and the gold-bearing carbonate veins...minerals of palladium and platinum from ouro preto-bearing mineralization in Brazil. Ore Geology Reviews 32 |
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Cabral, Alexandre Raphael, Tupinambá, Miguel, Zeh, Armin, Lehmann, Bernd, Wiedenbeck, Michael, Brauns, Michael, Kwitko-Ribeiro, Rogerio (2017) Platiniferous gold–tourmaline aggregates in the gold–palladium belt of Minas Gerais, Brazil: implications for regional boron metasomatism. Mineralogy and Petrology, 111 (6) 807-819 doi:10.1007/s00710-017-0496-0 |
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| aggregates in the gold–palladium belt of Minas Gerais, Brazil: implications for regional boron metasomatism...The platiniferous gold–palladium belt of Minas Gerais, Brazil, forms an approximately 240-km-long, roughly...Xavier 524 s. A4016, Rio Janeiro-RJ 20550-050, Brazil 4 Deutsches GeoForschungsZentrum GFZ, Telegrafenberg...Rodovia BR 381, km 450, Santa Luzia-MG 33040-900, Brazil tourmaline aggregates seem to be the ultimate...Metasomatism . PdPt . Gold–palladium belt . Minas Gerais . Brazil Introduction Auriferous lode deposits and |
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Oliveira, Lucilia Aparecida Ramos de, Rios, Francisco Javier, Rosière, Carlos Alberto, Wälle, Markus, Ortelli, Melissa, Kouzmanov, Kalin (2017) Nature and evolution of fluids associated with specularite-bearing Fe and Au-PGE (Jacutinga) mineralization during the Brasiliano orogeny in the eastern São Francisco Craton, Minas Gerais, Brazil. Ore Geology Reviews, 86. 130-153 doi:10.1016/j.oregeorev.2017.02.017 |
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| orogeny in the eastern São Francisco Craton, Minas Gerais, Brazil Lucilia Aparecida Ramos de Oliveira a,⇑...Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Minas Gerais 31270-901, Brazil Centro de Desenvolvimento...Tecnologia Nuclear, CDTN, 31270-901 Belo Horizonte, MG, Brazil c Institute of Geochemistry and Petrology (IGP)...aqueous-carbonic fluid from the Catas Altas and Itabira deposits. These Jacutinga-type fluids present a...Maria de Itabira. The high salinity of these brines (23.2–25.3 wt% NaCleqv) from the Itabira ore likely |
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Cabral, A. R., Zeh, A., Galbiatti, H. F., Lehmann, B. (2015) LATE CAMBRIAN Au-Pd MINERALIZATION AND Fe ENRICHMENT IN THE ITABIRA DISTRICT, MINAS GERAIS, BRAZIL, AT 496 Ma: CONSTRAINTS FROM U-Pb MONAZITE DATING OF A JACUTINGA LODE. Economic Geology, 110 (1) 263-272 doi:10.2113/econgeo.110.1.263 |
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| MINERALIZATION AND Fe ENRICHMENT IN THE ITABIRA DISTRICT, MINAS GERAIS, BRAZIL, AT 496 MA: CONSTRAINTS FROM U-Pb...Ferrosos, Vale, Miguelão, 34000-000 Nova Lima-MG, Brazil Abstract Bonanza-style mineralization of palladiferous...century in the province that became known as Minas Gerais. The timing of this itabirite-hosted vein mineralization...events recorded in the Quadrilátero Ferrífero of Minas Gerais, the ~2.0 Ga Transamazonian event and the ~0...recovered from the Conceição Fe-ore deposit within the Itabira district. The monazite analyses yield a precise |
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Drábek, M., Vymazalová, A., Cabral, A. R. (2012) The system Hg–Pt–Se at 400° C: Phase relations involving jacutingaite. The Canadian Mineralogist, 50 (2) 441-446 doi:10.3749/canmin.50.2.441 |
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| recently described from the Cauê iron-ore deposit, Minas Gerais, Brazil. At 400°C, the following assemblages...recovered at the Cauê iron-ore deposit in the Itabira iron-ore district, Minas Gerais, Brazil. This phase...phase as a new mineral species and named this platinum mercury selenide jacutingaite. This description...the Pd–Pt-bearing auriferous mineralization in Brazil (Cabral & Lehmann 2007) made the phase relations...Classification of the IMA (CNMNC 2010–078). No natural platinum amalgams have been found to date. Sudovikovite |
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Cabral, A. R., Lehmann, B., Kwitko-Ribeiro, R., Costa, C. H. C. (2002) Palladium and platinum minerals from the Serra Pelada Au-Pd-Pt deposit, Carajas mineral province, northern Brazil. The Canadian Mineralogist, 40 (5) 1451-1463 doi:10.2113/gscanmin.40.5.1451 |
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| Mineralogist Vol. 40, pp. 1451-1463 (2002) PALLADIUM AND PLATINUM MINERALS FROM THE SERRA PELADA Au–Pd–Pt DEPOSIT...DEPOSIT, CARAJÁS MINERAL PROVINCE, NORTHERN BRAZIL ALEXANDRE RAPHAEL CABRAL§ AND BERND LEHMANN Institut für...Doce, BR 262/ km 296, 33030-970 Santa Luzia – MG, Brazil CARLOS HENRIQUE CRAVO COSTA Diretoria de Metais...Serra dos Carajás, 68516-000 Parauabepas – PA, Brazil ABSTRACT The Serra Pelada garimpo (1980–1984)...Pd–O phase. The remarkable occurrence of native platinum associated with Pd-bearing gold, PGM (compositionally |
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Cabral, A. R., Lehmann, B., Grambole, D., Herrmann, F. (2004) HYDROGEN IN A NATURAL Pd O COMPOUND FROM GONGO SOCO, MINAS GERAIS, BRAZIL. The Canadian Mineralogist, 42 (2) 689-694 doi:10.2113/gscanmin.42.2.689 |
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| A NATURAL Pd–O COMPOUND FROM GONGO SOCO, MINAS GERAIS, BRAZIL ALEXANDRE RAPHAEL CABRAL§ AND BERND LEHMANN...encrustation of an ouro preto nugget of Gongo Soco, Minas Gerais, Brazil, is confirmed by elastic recoil detection...compound, ouro preto nugget, Gongo Soco, Minas Gerais, Brazil. SOMMAIRE L’existence d’hydrogène dans...pépite de ouro preto prélevée à Gongo Soco, Minas Gerais, Brazil, est confirmée par une analyse par détection...contenant Pd–O, pépite de ouro preto, Gongo Soco, Minas Gerais, Brésil. INTRODUCTION Evidence for the existence |
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Chapman, R. J., Leake, R. C., Bond, D. P. G., Stedra, V., Fairgrieve, B. (2009) Chemical and Mineralogical Signatures of Gold Formed in Oxidizing Chloride Hydrothermal Systems and their Significance within Populations of Placer Gold Grains Collected during Reconnaissance. Economic Geology, 104 (4) 563-585 doi:10.2113/gsecongeo.104.4.563 |
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| systems from several regions, including Australia, Brazil, Poland, and the United Kingdom. The distinctive...= Hope Cove, 11 = Wadham Rocks, 12 = Loddiswell mine. Localities in the Lammermuir Hills (adapted from...modification to Au-Pd alloys from the Cauê iron mine, Itabira district, Brazil, was investigated by Olivo and...precipitation of Au-Pd at the Conceição iron mine, Itabira district, Brazil, following high-temperature (600°C)...percent Ag recorded in gold grains from the Lubin mine within the Kupferscheiffer of Poland (Kucha and |
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Cabral, A. R., Kwitko-Ribeiro, R. (2004) ON THE ROSETTES OF "NATIVE PALLADIUM" FROM MINAS GERAIS, BRAZIL: EVIDENCE FROM GONGO SOCO. The Canadian Mineralogist, 42 (2) 683-687 doi:10.2113/gscanmin.42.2.683 |
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| THE ROSETTES OF “NATIVE PALLADIUM” FROM MINAS GERAIS, BRAZIL: EVIDENCE FROM GONGO SOCO ALEXANDRE RAPHAEL...Coelho Neto, 32/704, 22231–110 Rio de Janeiro, RJ, Brazil ROGERIO KWITKO-RIBEIRO Centro de Desenvolvimento...296, Caixa Postal 09, 33030–970 Santa Luzia, MG, Brazil ABSTRACT Minute rosette-like crystals (~1 m)...from Gongo Soco, an iron ore deposit in Minas Gerais, Brazil. The rosettes consist essentially of palladium...oxygen-bearing palladium, gold nugget, Gongo Soco, Minas Gerais, Brazil. SOMMAIRE De très petits cristaux (~1 m) |
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Cabral, A. R., Lehmann, B., Kwitko, R., Costa, C. H. C. (2002) The Serra Pelada Au-Pd-Pt deposit, Carajas mineral province, northern Brazil: reconnaissance mineralogy and chemistry of very high grade palladian gold mineralization. Economic Geology, 97 (5) 1127-1138 doi:10.2113/gsecongeo.97.5.1127 |
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| Au-Pd-Pt DEPOSIT, CARAJÁS MINERAL PROVINCE, NORTHERN BRAZIL: RECONNAISSANCE MINERALOGY AND CHEMISTRY OF VERY...296, Caixa Postal 09, 33030-970 Santa Luzia-MG, Brazil AND C.H. CRAVO COSTA Companhia Vale do Rio Doce—CVRD...51, Serra dos Carajás, 68516-000 Parauabepas-PA, Brazil Abstract A historic drill core from the Serra...assayed and has spectacular gold, palladium, and platinum grades over a 43-m-depth interval (4,709 g/t Au...The deep system still has gold, palladium, and platinum grades in the g/t range and displays erratically |
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Cabral, A. R., Beaudoin, G., Kwitko-Ribeiro, R., Lehmann, B., Polonia, J. C., Choquette, M. (2006) PLATINUM PALLADIUM NUGGETS AND MERCURY-RICH PALLADIFEROUS PLATINUM FROM SERRO, MINAS GERAIS, BRAZIL. The Canadian Mineralogist, 44 (2) 385-397 doi:10.2113/gscanmin.44.2.385 |
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| (2006) _PLATINUM_–PALLADIUM NUGGETS AND MERCURY-RICH PALLADIFEROUS PLATINUM FROM SERRO, MINAS GERAIS, BRAZIL...296, Caixa Postal 09, 33030-970 Santa Luzia – MG, Brazil Bernd LEHMANN Institut für Mineralogie und Mineralische...Carlos POLÔNIA Rua Paris 105, 34800-000, Caeté – MG, Brazil Marc CHOQUETTE Département de géologie et de génie...reniform grains of platinum and palladium from Córrego Bom Sucesso, Serro, Minas Gerais, Brazil, were investigated...and exhibit core-to-rim compositional zoning in platinum, palladium and mercury contents. One grain is |
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Vymazalová, A., Chareev, D. A., Kristavchuk, A. V., Laufek, F., Drábek, M. (2014) The Ag-Pd-Se system: phase relations involving minerals and potential new minerals. The Canadian Mineralogist, 52 (1) 77-89 doi:10.3749/canmin.52.1.77 |
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| Ag–Pd–Se system, phase relations, phase diagram, _platinum_-group minerals, chrisstanleyite, palladseite,...“jacutinga” type ores, in Minais Gerais and Serra Pelada in Brazil (Clark et al. 1974, Davis et al. 1977...has also been reported from the Musonoi Cu-CoMn-U mine of the Shaba province in the Democratic Republic...Australia (Nickel 2002), and from Gongo Soco in Minas Gerais, Brazil (Cabral & Lehmann 2007). Verbeekite is known...known from its type locality, the Musonoi Cu-Co-Mn-U mine in the Democratic Republic of Congo (Roberts et |
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El Ghorfi, Mustapha, Oberthür, Thomas, Melcher, Frank, Lüders, Volker, El Boukhari, Abdelmajid, Maacha, Lhou, Ziadi, Rachid, Baoutoul, Hssain (2006) Gold–palladium mineralization at Bleïda Far West, Bou Azzer–El Graara Inlier, Anti-Atlas, Morocco. Mineralium Deposita, 41 (6) 549-564 doi:10.1007/s00126-006-0077-3 |
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| intergrown with a distinct suite of mainly Pd-dominated platinum group minerals, namely mertieite-I/isomertieite...Common to all Au–Pd mineralizations worldwide (Brazil, Australia, UK), including Bleïda Far West, is...Gold–palladium mineralization . Palladian gold . Platinum group minerals . Bleïda Far West . Anti-Atlas...mineralization some 7 km NW of the former Bleïda copper mine. Managem, a subsidiary of the ONA group, intends...significant palladium contents and associated platinum group minerals. It is also this works objective |
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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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| Palladian gold from the Cau iron mine, Itabira District, Minas Gerais, Brazil G. R. OLIVO,M. GAUTHIERAND M...Palladian gold from the Cau~ iron mine, Itabira District, Minas Gerais, Brazil is found in horizons of hydrothermally-altered...of Sl-fabrics. K~VWOROS: gold, palladium, Itabira, Brazil, iron-formation, jacutinga. Introduction IT...Devon, England (Clark and Criddle, 1982); and in Brazil from the Serra Pelada deposit, in Par~ State (Meireles...1993), all in Minas Gerais State. The palladian gold occurrences in Minas Gerais, Brazil, discussed in |
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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 |
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| minerals from the Caua iron mine, Itabira District, Minas Gerais, Brazil GFMA RIBEIROOLIVOANDMICHELGAUTHIER...minerals from the Cau~ iron mine, Itabira District, Minas Gerais, Brazil, are found in goldrich jacutinga...minerals, palladseite, arsenopalladinite, CauE mine, Brazil, jacutinga. Introduction minerals, but as...palladium-bearing gold ore of the Cau~ iron mine, Itabira District, Brazil, are reported and discussed in terms...terms of their genesis. PALLADIUMminerals in the Itabira region were first described by Clark et al. (1974) |
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Morgan, Rachael, Orberger, Beate, Rosière, Carlos A., Wirth, Richard, Carvalho, Camila da Mota, Bellver-Baca, M. Teresa (2013) The origin of coexisting carbonates in banded iron formations: A micro-mineralogical study of the 2.4Ga Itabira Group, Brazil. Precambrian Research, 224. 491-511 doi:10.1016/j.precamres.2012.10.013 |
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| micro-mineralogical study of the 2.4 Ga Itabira Group, Brazil Rachael Morgan a,∗ , Beate Orberger a,b...Universidade Federal de Minas Gerais, Av. Antonio Carlos 6627, 31270-901 Belo Horizonte, MG, Brazil d Helmholtz Centre...ankerite and sideroplesite in the 2.4 Ga Itabira Group, Brazil. The Itabira Group hosts silicic and dolomitic...depositional environment for the Itabira Group at 2.4 Ga. Limestones of the Itabira Group include early diagenetic...dolomite BIF is found in the 2.4 Ga Itabira Group, Minas Gerais, Brazil (Spier et al., 2007). Here we present |
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Barkov, A. Y., Fleet, M. E., Martin, R. F., Halkoaho, T. A.A. (2005) New data on "Bonanza"-type PGE mineralization in the Kirakkajuppura PGE deposit, Penikat layered complex, Finland. The Canadian Mineralogist, 43 (5) 1663-1686 doi:10.2113/gscanmin.43.5.1663 |
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| Finland ABSTRACT Various _platinum_-group minerals (PGM), phases rich in the _platinum_-group elements (PGE)...of the Penikat complex. Keywords: _platinum_-group elements, _platinum_-group minerals, hydrothermal mineralization...fennoscandien, Finlande. INTRODUCTION The Kirakkajuppura _platinum_-group element (PGE) deposit is hosted by the Penikat...crystal chemistry of several important species of _platinum_-group minerals (PGM) from Kirakkajuppura (Barkov...paper, we provide a detailed description of the _platinum_-group mineralogy of this extraordinary PGE deposit |
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