 | 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 | Journal (article/letter/editorial) | | 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...Tektos-Geotectonic Research Group, Faculdade de Geologia, Universidade do Estado do Rio de Janeiro, Rua S. Francisco Xavier...Xavier 524 s. A4016, Rio Janeiro-RJ 20550-050, Brazil 4 Deutsches GeoForschungsZentrum GFZ, Telegrafenberg...Departamento de Tecnologia Mineral, Rodovia BR 381, km 450, Santa Luzia-MG 33040-900, Brazil tourmaline |  | Trumbull, R. B., Garda, G. M., Xavier, R. P., Cavalcanti, J. A. D., Codeço, M. S. (2019) Tourmaline in the Passagem de Mariana gold deposit (Brazil) revisited: major-element, trace-element and B-isotope constraints on metallogenesis. Mineralium Deposita, 54 (3) 395-414 doi:10.1007/s00126-018-0819-z | Journal (article/letter/editorial) | | z ARTICLE Tourmaline in the Passagem de Mariana gold deposit (Brazil) revisited: major-element, trace-element...Springer Nature 2018 Abstract Tourmaline at Passagem de Mariana forms three associations: stratiform tourmalinite...geological arguments, we favor a source in the Minas Supergroup metasedimentary units hosting the deposit...Ferrífero . Minas Gerais . Boron isotopes . Trace elements Introduction The Passagem de Mariana (PM) deposit... Instituto de Geociências, Universidade de São Paulo, São Paulo, Brazil 3 Instituto de Geociências |  | | Journal (article/letter/editorial) | | the auriferous lode of Passagem, Quadrilátero Ferrífero of Minas Gerais, Brazil Alexandre Raphael Cabral...Springer-Verlag 2011 Abstract The auriferous lode of Passagem de Mariana is characterised by abundant tourmaline,...and coexisting minerals precipitated. In Minas Gerais, Brazil, the occurrence of gold mineralisation in...carvoeira-style mineralisation in Minas Gerais is the Passagem de Mariana gold deposit, near Ouro Preto....Despite detailed investigation on the Passagem tourmaline (de Oliveira et al. 2002; Cavalcanti and Xavier |  | Vial, D.S., Duarte, B.P., Fuzikawa, K., Vieira, M.B.H. (2007) An epigenetic origin for the Passagem de Mariana gold deposit, Quadrilátero Ferrífero, Minas Gerais, Brazil. Ore Geology Reviews, 32 (3) 596-613 doi:10.1016/j.oregeorev.2005.03.017 | Journal (article/letter/editorial) | | origin for the Passagem de Mariana gold deposit, Quadrilátero Ferrífero, Minas Gerais, Brazil D.S. Vial a... Santa Luzia, MG, Brazil Faculdade de Geologia da Universidade do Estado do Rio de Janeiro, Rua São Francisco...Francisco Xavier, 524, Maracanã, Rio de Janeiro, RJ, Brazil c CDTN-Centro de Desenvolvimento da Tecnologia Nuclear...Horizonte, MG, Brazil d Companhia Vale do Rio Doce, BR262, Km 296, Santa Luzia, MG, Brazil b Received...The gold–tourmaline quartz–vein deposit of Passagem de Mariana, in the southeastern part of the Quadrilátero |  | Cabral, Alexandre Raphael, Koglin, Nikola, Strauss, Harald, Brätz, Helene, Kwitko-Ribeiro, Rogerio (2013) Regional sulfate–hematite–sulfide zoning in the auriferous Mariana anticline, Quadrilátero Ferrífero of Minas Gerais, Brazil. Mineralium Deposita, 48 (7) 805-816 doi:10.1007/s00126-013-0481-4 | Journal (article/letter/editorial) | | in the auriferous Mariana anticline, Quadrilátero Ferrífero of Minas Gerais, Brazil Alexandre Raphael...of the Mariana anticline, in the south-eastern part of the Quadrilátero Ferrífero of Minas Gerais, Brazil...deposit, respectively), and arsenopyrite (Passagem de Mariana gold deposit), suggest a new interpretation...interpretation for the hydrothermal fluid overprint in the Mariana anticline. The Antônio Pereira barite has Δ33S...barite-δ34S values are between +19.6 and +20.8‰. The Passagem arsenopyrite and tourmaline have Co/Ni ratios |  | | Journal (article/letter/editorial) | | SEBASTIÃO GOLD DEPOSIT, BRAZIL: IMPLICATIONS FOR LODE-GOLD MINERALIZATION IN MINAS GERAIS ALEXANDRE RAPHAEL...do Rio de Janeiro, Instituto de Geociências, Departamento de Geologia, Rio de Janeiro, RJ, Brazil ABSTRACT...deposit in the Pitangui greenstone belt, Minas Gerais, Brazil. Part of its hydrothermal system is characterized...economically and historically important Passagem de Mariana gold mine shows similarities that are indicative...overprint in Minas Gerais. Keywords: Bi8Te3, Bi2Te, São Sebastião gold deposit, Minas Gerais, Brazil. INTRODUCTION |  | Cabral, Alexandre Raphael, Wiedenbeck, Michael, Rios, Francisco Javier, Seabra Gomes, Antônio Augusto, Rocha Filho, Orlando Garcia, Jones, Richard David (2012) Talc mineralisation associated with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry and boron-isotope composition of tourmaline. Mineralium Deposita, 47 (4) 411-424 doi:10.1007/s00126-011-0374-3 | Journal (article/letter/editorial) | | with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry and boron-isotope...at Gongo Soco, Quadrilátero Ferrífero of Minas Gerais, Brazil. The hematite–talc schist and soft hematite...Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN), 30123-970, Belo Horizonte-MG, Brazil A. A...Gomes Jr Gerência de Exploração Mineral de Ferrosos (GAEMF), Centro Tecnológico de Ferrosos–Miguelão...Fazenda Rio do Peixe, Galpão de Testemunhos, 34000-000, Nova Lima-MG, Brazil O. G. Rocha Filho Rua Ceará |  | De Oliveira, Ester Figueiredo, Castañeda, Cristiane, Eeckhout, Sigrid Griet, Gilmar, Messias Menezes, Kwitko, Rogério Ribeiro, De Grave, Eddy, Botelho, Nilson Francisquini (2002) Infrared and Mössbauer study of Brazilian tourmalines from different geological environments. American Mineralogist, 87 (8) 1154-1163 doi:10.2138/am-2002-8-914 | Journal (article/letter/editorial) | | different geological environments ESTER FIGUEIREDO DE OLIVEIRA,1 CRISTIANE CASTAÑEDA,2,* SIGRID GRIET EECKHOUT...RIBEIRO KWITKO,5 EDDY DE GRAVE,3 AND NILSON FRANCISQUINI BOTELHO2 1 Comissão Nacional de Energia Nuclear,...30123-970, Belo Horizonte, Minas Gerais, Brazil 2 Instituto de Geociências, Universidade de Brasília, CP 3173...3173 CEP 30140-970, Brasília, Distrito Federal, Brazil 3 Department of Subatomic and Radiation Physics, Ghent...Departamento de Geologia, Universidade Federal de Ouro Preto, CEP 35400-000 Ouro Preto, Minas Gerais, Brazil |  | | Journal (article/letter/editorial) | | Gold-bismuth-telluride-sulphide assemblages at the Viceroy Mine, Harare-Bindura-Shamva greenstone belt, Zimbabwe...2008] ABSTR ACT Gold mineralization at the Viceroy Mine is hosted in extensional veins in steep shear zones...liquid/melt-collecting mechanism was probably active at Viceroy Mine, where the distinct Au-Bi-TeS assemblage either...Viceroy and Mazowe Mines, Zimbabwe, Passagem de Mariana Mine, Brazil. Introduction FOR a long time, tellurides...deposits. Well known examples are the classic mining district and type area of many telluride minerals, the |  | Albert, Capucine, Lana, Cristiano, Gerdes, Axel, Schannor, Mathias, Narduzzi, Francesco, Queiroga, Gláucia (2018) Archean magmatic-hydrothermal fluid evolution in the Quadrilátero Ferrífero (SE Brazil) documented by B isotopes (LA MC-ICPMS) in tourmaline. Chemical Geology, 481. 95-109 doi:10.1016/j.chemgeo.2018.02.002 | Journal (article/letter/editorial) | | fluid evolution in the Quadrilátero Ferrífero (SE Brazil) documented by B isotopes (LA MC-ICPMS) in tourmaline...fluid evolution in the Quadrilátero Ferrífero (SE Brazil) documented by B isotopes (LA MCICPMS) in tourmaline...fluid evolution in the Quadrilátero Ferrífero (SE Brazil) documented by B isotopes (LA MC-ICPMS) in tourmaline...Schannora, Applied Isotope Research Group, Departamento de Geologia, Universidade RI a PT Francesco Narduzzia...Queirogaa b SC Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil Institut für Geowissenschaften |  | 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 | Journal (article/letter/editorial) | | 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...metasedimentary Minas Supergroup of the Quadrilátero Ferrífero of Minas Gerais, Brazil, has gold compositions...(GUERRA 2004). This period precedes the underground mine workings in the greenstone rocks (e.g., HENWOOD...gold–palladium belt of Minas Gerais (CABRAL et al. 2009), which involves hematite-rich rocks of the Minas Supergroup |  | | Journal (article/letter/editorial) | | commonly present but minor tourmaline (schorl, dravite), scheelite and distinctive green, Cr-Va-Ba muscovite...clasts of auriferous pyrite 1422 E drift, Pamour Mine, Timmins, Ontario. 354 R.W. HUTCHINSON Fig....(right) facies ironformation (exposure south of Mine Doyon pit, Cadillac, Quebec ). Fig. 3 (d). Single...ankeritic walls and quartz core ( 12th level, Dome Mine, South Porcupine, Ontario ). contain more sediment-hosted...minerals in dump samples from a small, abandoned gold mine. Nickel ores are also coregional with the gold and |  | | Report (issue) | | the Departmento National da Produ^ao Mineral of Brazil under the auspices of the Agency for International...Ferrifero, Minas Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRIFERO, MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation with the Departmento Nacional da Produqao...Produqao Mineral of Brazil under the auspices of the Agency for International Development of the United...Ferrifero, Minas Gerais, Brazil. (Regional geology of the Quadrilatero Ferrifero, Minas Gerais, Brazil) (Geological |  | | Journal (article/letter/editorial) | | by-productgold, of which the bestknown exampleis the Horne mine at Noranda, Quebec.Their high gold content and coregionality...Proterozoic greenstone• hostedlodes 1 Bohio I/ ) •Minas Phanerozoic areenstone• Goi• LatePrecambrian- •...Kerr-Addison mine in Kirkland Lake, Ontario (Bakeret al., 1957; Kishida, 1984), at Passagemde Mariana in Minas...sourcesof gold for at least a milleniumin India, Gerais,Brazil (Fleischerand Routhier,1973), and West Africa...discoveredHemlo districtin Ontario centuriesin Brazil. And they have also been exscalefor the lastcenturyin |  | | Journal (article/letter/editorial) | | alkali group, and are classified under the schorl-dravite solid solution series. The substitutions of FeMg–1...occurs in opposite plots near the end member of Oxy-dravite, reflecting a more oxidizing environment for type...closure of the paleo-Tethyan ocean. The Xiahe-Hezuo district is located in the western portion of the WQO (Figure...the Xinpu-Lishishan anticline (Figure 1b). The district is divided into the western and eastern zones...map of of the the Xiahe-Hezuo Xiahe-Hezuo district district showing showing the the distribution distribution |  | | Journal (article/letter/editorial) | | diagenetic tourmaline are well known. Tourmaline (dravite, uvite) is common in some ancient evaporites and...principal repository on Earth for boron and the schorl-dravite solid solution series is common in numerous submarine... Y=A1), schorl (W=Na, X = F e n, Fe m, Y=A1), dravite (W=Na, X=Mg, Y=A1) and uvite (W=Ca, X=Mg, Y=A1...metamorphism commonly produce tourmaline (schorl-dravite), especially associated with metamorphic gold deposits...and ignoring LifO which is unlikely in schorl-dravite solid solutions. The structural formulae calculated |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Journal (article/letter/editorial) | | the Turmalina deposit, Quadrilátero Ferrífero, Brazil: structural evolution and the two stages of mineralization...Ferrífero (translated as BIron Quadrangle^), Minas Gerais, Brazil (Fig. 1a). The Quadrilátero Ferrífero (QF)...Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil 2 Universidade de Brasília...Brasília, Distrito Federal 70910-900, Brazil Brazilian mining district located in the southern São Francisco...geological map of the Quadrilátero Ferrífero (Minas Gerais, Brazil) showing the Rio das Velhas and other correlated |  | Su, Zhi-Kun, Zhao, Xin-Fu, Zeng, Li-Ping, Zhao, Kui-Dong, Hofstra, Albert H. (2019) Tourmaline boron and strontium isotope systematics reveal magmatic fluid pulses and external fluid influx in a giant iron oxide-apatite (IOA) deposit. Geochimica et Cosmochimica Acta, 259. 233-252 doi:10.1016/j.gca.2019.06.006 | Journal (article/letter/editorial) | | for each stage of tourmaline plot along the “oxy-dravite”–povondraite join, which is indicative of precipitation...of the giant Taocun IOA deposit in the Ningwu district, eastern China. Orebodies are hosted within the...alteration. 2. REGIONAL GEOLOGY The Ningwu IOA district is an important part of the middle and lower Yangtze...subduction (Mao et al., 2011). The Ningwu ore district is controlled by NE-striking regional faults within...best-documented IOA deposits in the central Ningwu district (Fig. 1B), having a reserve of 360 Mt with grades |  | | Report (issue) | | Mineral Resources of the Congonhas District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER...the Departamento N acional da Produfao Mineral of Brazil under the auspices of the International Cooperation...Mineral Resources of the Congonhas District Minas Gerais, Brazil By PHILIP W. GUILD GEOLOGICAL SURVEY...Departamento N acional da Produ~ao M,ineral of Brazil under the auspices of the International Cooperation...__________________ _ Iron region of central Minas Gerais _______________ _ Congonhas district_ ________________________ |  | Lawrence, D. M., Treloar, P. J., Rankin, A. H., Harbidge, P., Holliday, J. (2013) The Geology and Mineralogy of the Loulo Mining District, Mali, West Africa: Evidence for Two Distinct Styles of Orogenic Gold Mineralization. Economic Geology, 108 (2) 199-227 doi:10.2113/econgeo.108.2.199 | Journal (article/letter/editorial) | | The Geology and Mineralogy of the Loulo Mining District, Mali, West Africa: Evidence for Two Distinct...Abstract Loulo is a world-class orogenic gold mining district in the Birimian terrane of western Mali. Orebodies...mineralization largely linked to a transtensional event. The mine camp is divided into two distinct styles of gold... Burrows and Spooner, 1989; Powell et al., 1991; de Ronde et al., 2000; Pitcairn et al., 2006). New petrographic...Syndicate, a joint venture between the French Bureau de Recherches Géologiques 199 Submitted: October 22 |  | | Journal (article/letter/editorial) | | within a single orogenic gold ore district. The Loulo Mining District in Mali, 20 West Africa hosts several...hydrothermal fluids exsolved from crystallising 60 magmas (de Ronde et al., 2000; Lawrence et al., 2013a; Lawrence...sources within a single orogenic Au district. The Loulo Mining District in Mali, West 102 Africa hosts...al., 2007; Tshibubudze et al., 2009; Hein, 2010; de Kock et al., 2011). 132 The Eoeburnean consists...et 138 al., 2009). 139 3. The Loulo Mining District 140 3.1. Local Geology 7 141 The Au deposits |  | | Journal (article/letter/editorial) | | tourmalines belong to the alkali group and to the dravite-schorl solid solution. Type III tourmaline which...prospecting W-Sn-Be mineralization in the Xuebaoding district. Minerals 2020, 10, 438; doi:10.3390/min10050438...0.17 Dravite Dravite Dravite Schorl Dravite Dravite Dravite Dravite Dravite Dravite Dravite...Dravite Dravite Dravite Dravite Dravite Dravite Dravite Dravite Dravite Dravite Dravite Dravite...Dravite Dravite Sample NO. XBD 22b XBD 22c XBD 22e XBD 22f XBD 22g XBD 22h XBD 22e XBD 22f XBD 22g |  | | Report (issue) | | Meghan and Dale Funk, Karen Webber, Pam Henaghan, Jack De/brook, Alfons Hofstetter, Christian Weise, Klaus...crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil by Eberhard Equit, 1993 extraLapis...Alexander U. Falster and William B. Simmons • Dravite from Qarusulik, Ameralik Fjord in Southwestern...and Valuable: Cuprian Tourmaline from Paraiba, Brazil ....... 47 Brian C. Cook Discovery ♦ Technology...1717 gem tourmaline was being referred to as pierre de Ceylon, and in 1766 the name aschen trecker was |  | | Journal (article/letter/editorial) | | been identified as intermediate members of the dravite-schorl solid solution series with minor amounts...1976) and from the Felbertal (Mittersill) tungsten mine (HMl, pers. comm.). At Felbertal, tourmalinites...recently been discovered in the eastern part of the mine and the surrounding area (Gilg, pers. comm.). These...solutions of schorl [NaFe3A16(BO3)3Si6018(OH)4] dravite [NaMg3A16(BO3)3 Si6018(OH)4] and schorl elbaite...Na x + Aly = + Mgy + Si T = A l y MgFe_l dravite-schorl CaMgNa_l AI-I uvite substitution substitution |
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Passagem mine, Passagem de Mariana district, Mariana, Minas Gerais, Brazil