 | | Report (volume) | | workshop held December 1-10,1986, in Belo Horizonte, Brazil, was hosted by the Institute Brasileiro de Mineragao...photograph at Quintas, Mineragao Morro Velho Club, Nova Lima, Brazil December 4,1986 1. 2. 3. 4. 5. ...Kerswill 19. 20. 21. 22. Fernando L. Repetto Rafael Lima de Oliveira Eduardo Ladeira Diogenes Scipioni Vial...Sergio Maurus Ribas Paulo Roberto Amorim dos Santos Lima Marcel Fonseca 36. Vitor Hugo Silveira de Castro...Quadrilatero Ferrffero, Minas Gerais, Brazil Workshop: Belo Horizonte, Brazil, December 1-10,1986 Sponsors: |  | Vial, Diogenes Scipioni, DeWitt, Ed, Lobato, Lydia Maria, Thorman, Charles H. (2007) The geology of the Morro Velho gold deposit in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil. Ore Geology Reviews, 32 (3) 511-542 doi:10.1016/j.oregeorev.2004.12.008 | Journal (article/letter/editorial) | | elsevier.com/locate/oregeorev The geology of the Morro Velho gold deposit in the Archean Rio das Velhas greenstone...greenstone belt, Quadrilátero Ferrífero, Brazil Diogenes Scipioni Vial a,⁎, Ed DeWitt b , Lydia Maria...Doce-CVRD, BR 381, Km 459, Santa Luzia, MG, 33010-970, Brazil United States Geological Survey, Box 25046, Denver...Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil d CTGS...Abstract The Morro Velho gold deposit, Quadrilátero Ferrífero region, Minas Gerais, Brazil, is hosted by |  | Vial, D.S., Abreu, G.C., Schubert, G., Ribeiro-Rodrigues, L.C. (2007) Smaller gold deposits in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil. Ore Geology Reviews, 32 (3) 651-673 doi:10.1016/j.oregeorev.2005.01.004 | Journal (article/letter/editorial) | | Velhas greenstone belt, Quadrilátero Ferrífero, Brazil D.S. Vial a,⁎, G.C. Abreu b , G. Schubert a , L...Vale do Rio Doce, BR 381, km 450, Santa Luzia, MG, Brazil Instituto de Geociências da Universidade de São...São Paulo, Rua Major Solbiat, 226, Torrinha, SP, Brazil Fundação Educacional de Caratinga, Fazenda Experimental...BR-116, Km 526, Bairro das Graças, Caratinga, MG, Brazil b c Received 26 June 2003; accepted 2 January...Pari, as well as the world-class deposits of Morro Velho and Cuiabá. All these deposits, whether large |  | | Journal (article/letter/editorial) | | e r a l i z a t i o n in Central E a s t e r n Brazil: a review A. Bernasconi Terraconsult AG, Steinwiesstrasse24...the major Archaean terranes of central eastern Brazil is given in the first section of this paper. Integration...Jequie and Goias mobile belts of central eastern Brazil. This mineralization associated with greenstone...important Archaean gold districts of Brazil, the Iron Quadrangle of Minas Gerais (Fig. 1), was discovered. Recently...the Archaean gold metallogeny of central eastern Brazil based on the presently known major raineralized |  | | Journal (article/letter/editorial) | | the QuadrilaÂtero FerrõÂ fero region, Minas Gerais state, Brazil, one of the major gold provinces in the...intensely carbonatized rock (e.g., the giant Morro Velho mine with >450 t of contained gold). Metabasalts...Federal de Minas Gerais, Av. AntoÃnio Carlos 6627, Pampulha, Belo Horizonte, Minas Gerais, 31270-901...31270-901, Brazil E-mail: lobato@igc.ufmg.br Fax: +55-31-4995410 L.C. Ribeiro-Rodrigues FAPEMIG Bursary Recipient...Escola de Minas, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais, 35400-000 |  | | Journal (article/letter/editorial) | | pp. 775-798 GEOLOGY OF THE RAPOSOS GOLD MINE, MINAS GERAIS, BRAZ[I. GENE E. TOLBERT CONTENTS PAGE ............................................. Morro Velho zone ........................................sequence,which trends approximately east-west in the mine area, is intruded by diabase dikes that strike northeast... which is widely distributed in the Raposos-Morro Velho region and contains 0.31 percent Cr20 a. Arsenopyrite...depositsare similar to thoseat Morro Velho except that the hostrock at Morro Velho is a quartz-carbonate rock |  | | Journal (article/letter/editorial) | | Abstract Brazil has been a major but intermittent producer of gold since its discovery in 1500. Brazil led...hosted in Archean rocks produced 66% of the gold in Brazil, whereas deposits in Paleoproterozoic and Neoproterozoic...MinisteÂrio de Minas e Energia, Secretaria de Minas e Metalurgia, BrasõÂ lia, Brazil E.A. Ladeira Rua...Muzambino 355/404, Belo Horizonte, Minas Gerais 30310-280, Brazil Deposits in metamorphosed sedimentary...importance. The Archean and Paleoproterozoic terranes of Brazil largely lack base-metal-rich volcanogenic massive |  | | Report (issue) | | and Ore Deposits of the Nova Lima and Rio Acima Quadrangles Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL...the Departamento N acional da Producao Mineral of Brazil under the auspices of the International Cooperation...and Ore Deposits of the Nova Lima and Rio Acima Quadrangles Minas Gerais, Brazil By JACOB E. GAIR GEOLOGY...GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-A...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation |  | | Report (issue) | | EXCURSION FROM BELO HORIZONTE TO OURO PRETO MINAS GERAIS, BRAZIL REGIONAL STRATIGRAPHY AND TECTONICS OF THE...DAS VELHAS GREENSTONE BELT AND THE PROTEROZOIC MINAS SUPERGROUP AS BACKGROUND FOR GOLD METALLOGENESIS...Geoci&ncias Universidade Federal de Minas Gerais Belo Horizonte, Brazil 2U.S. Geological Survey Denver,...bauxite prospect pit at Morro do Cruzeiro, Ouro Preto, Minas Gerais, Brazil. 14 INTRODUCTION This...reporting on a workshop held in Belo Horizonte, Brazil, from December 1-10, 1986. The workshop was sponsored |  | | Journal (article/letter/editorial) | | "Consanguineous" Origin of a Tourmaline-Bearing Gold Deposit' Passagemde Mariana (Brazil) ROlAnD FnE•SCI•I• ... of the gold deposit--due to the presence of tourmaline !--collapses. It is difficult to prove whether...the "Quadril/ttero Ferrlfero," State of Minas Gerais, Brazil. Exploited sincethe end of the seventeenth...least60 tonsof gold,whereasthe neighboring Morro Velho deposit totaledmorethan250 tonsof gold. Severalaspectsof...mineralization,composedessentially of quartz, carbonates,tourmaline,arsenopyrite,and gold, occursin a bed which may |  | | 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 |  | Lobato, Lydia Maria, Ribeiro-Rodrigues, Luiz Cláudio, Zucchetti, Márcia, Noce, Carlos Maurício, Baltazar, Orivaldo Ferreira, da Silva, Luiz Carlos, Pinto, Claiton Piva (2001) Brazil's premier gold province. Part I: The tectonic, magmatic, and structural setting of the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero. Mineralium Deposita, 36 (3) 228-248 doi:10.1007/s001260100179 | Journal (article/letter/editorial) | | signi®cant Archean greenstone-belt successions in Brazil, in both their appreciable mineral productivity...fero (Iron Quadrangle) region, Minas Gerais state, southeastern Brazil, which occupies the southernmost...southernmost portion of the SaÄo Francisco craton. The Nova Lima Group rocks, at the base of the Rio das Velhas...Federal de Minas Gerais, Av. AntoÃnio Carlos 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901,... Brazil E-mail: lobato@dedalus.lcc.ufmg.br Fax: +55-31-4995410 L.C. Ribeiro-Rodrigues FAPEMIG Bursary |  | Chauvet, A., Faure, M., Dossin, I., Charvet, J. (1994) A three-stage structural evolution of the Quadrilátero Ferriífero: consequences for the Neoproterozoic age and the formation of gold concentrations of the Ouro Preto area, Minas Gerais, Brazil. Precambrian Research, 68 (1) 139-167 doi:10.1016/0301-9268(94)90069-8 | Journal (article/letter/editorial) | | gold concentrations of the Ouro Preto area, Minas Gerais, Brazil A. C h a u v e t , M . F a u r e , I. D...Craton (Brazil), where three major Proterozoic supracrustal units (the "Rio das Velhas", "Minas" and "Itacolomi"...Main Mineralized Contact (located between the "Minas" and "Rio das Velhas" Supergroups), is found within...recrystallized quartz, carbonate, sulphide, chlorite and tourmaline. Microscopic analysis and veins geometry allow...Introduction The Quadril~itero Ferrifero (Minas Gerais, Brazil), like most of the Archaean greenstone belts |  | 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 | Journal (article/letter/editorial) | | ion at the Cau Iron Mine, Itabira District, Southern SaoFrancisco Craton,Brazil: GeologicandStructuralControls...Rio Dote, Itabira, MinasGerais,Brazil 35900-900 Abstract The Cau• iron mine is located in the Itabira district...quartz,talc,phlogopite, with minoramounts of tourmaline,aparite, and monazite.In the Corpo Y orebody...known as a major producerof iron ore (Doff, Mariana mine), and Lake Superior-typeiron-formations Introduction...whichgoldandpalladiumoccurtogetherin a Proterozoie The Morro Velho mine alone hasproducedabout 500 t Lake Superio |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection...Fineart Print Inside cover photographs: "Parafba" tourmaline (25 x 6 mm), Sao Jose da Batalha, Parafba. Courtesy...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 |  | | Journal (article/letter/editorial) | | ORIGIN OF THE ORES OF MINAS JOHN HIGH-GRADE GERAIS, VAN No. 1 BRAZIL HEMATITE • N. DORR, II...ABSTRACT The high-gradehematite depositsof Minas Gerais, Brazil, are those averagingmore than 66% Fe and...area of some7,000 squarekilometersin central Minas Gerais. Beginningin 1946, a group of Brazilian and...resourcesof this area; HIGH-GRADE HEMATITE ORES OF BRAZIL 3 theyhaveprepared topographic andgeologic mapsona...information concerningore analyses,exploration, reserves,mine maps, as well as the many other typesof aid so necessaryto |  | Brando Soares, Mariana, Corrêa Neto, Atlas Vasconcelos, Bertolino, Luiz Carlos, Alves, Felipe Emerson André, de Almeida, Antônio Modesto, Montenegro da Silva, Pedro Henrique, Mabub, Ricardo Oliveira de Araújo, Manduca, Luedson Guimarães, Araújo, Ivan Mendes Caixeta de Pamplona (2018) Multistage mineralization at the hypozonal São Sebastião gold deposit, Pitangui greenstone belt, Minas Gerais, Brazil. Ore Geology Reviews, 102. 618-638 doi:10.1016/j.oregeorev.2018.09.028 | Journal (article/letter/editorial) | | Gold Deposit, Pitangui Greenstone Belt, Minas Gerais, Brazil Mariana Brando Soares, Atlas Vasconcelos...Gold Deposit, Pitangui Greenstone Belt, Minas Gerais, Brazil, Ore Geology Reviews (2018), doi: https://doi...Gold Deposit, Pitangui Greenstone Belt, Minas Gerais, Brazil Mariana Brando Soares1, Atlas Vasconcelos...Geociências, Universidade Federal do Rio de Janeiro, Brazil. 2 – Departamento de Geologia, Instituto de Geociências...Janeiro, Brazil. 3- Centro de Tecnologia Mineral (CETEM), Rio de Janeiro, Brazil 4 – IAMGOLD, Brazil 5- Centro |  | 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) | | Mariana gold deposit, Quadrilátero Ferrífero, Minas Gerais, Brazil D.S. Vial a,⁎, B.P. Duarte b , K. Fuzikawa...Vale do Rio Doce, BR381, Km 459, Santa Luzia, MG, Brazil Faculdade de Geologia da Universidade do Estado...Francisco Xavier, 524, Maracanã, Rio de Janeiro, RJ, Brazil c CDTN-Centro de Desenvolvimento da Tecnologia...Horizonte, MG, Brazil d Companhia Vale do Rio Doce, BR262, Km 296, Santa Luzia, MG, Brazil b Received...Available online 14 February 2007 Abstract The gold–tourmaline quartz–vein deposit of Passagem de Mariana, in |  | | 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)...Universidade 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...geological map of the Quadrilátero Ferrífero (Minas Gerais, Brazil) showing the Rio das Velhas and other correlated |  | | Journal (article/letter/editorial) | | been found at the Harding mine in Taos County, New Mexico; the Midnight Owl mine in Yavapai County, Arizona;...Arizona; and the Himalaya mine in San Diego County, California. Fluorescing apatite is also found in some...may harbor a variety of crystallized minerals-tourmaline, topaz, beryl, and other gemmy species, including...apatite crystals from Megina and Toea da Onca, Minas Gerais, Brazil. In the United States, the Harvard quarry...rare-earth activators. In some specimens from the Edison mine, crystals of apatite are included within masses |  | | Journal (issue) | | 50 to $ 1,000.00 HYDROBORACITE from the Thompson mine, Death Valley, Calif. Some spec imens w ith colemanite...Newman Minerals From the Lavra da llha Pegmatite, Brazil.................... 207 Jacques P. & Jeannine O...Richard S. Mitchell The Minerals of the Morro Velho Gold Mine, Brazil.......................................Good thumbnail of the simple SILVER. Glenn Lake Mine. San Diego Co., Calif. A group of octrahedron xl...doubly terminated xls with good RENARDITE. Ruggles Mine, Massive. Rare. 2 x 4cm $14.00 pink color. Slightly |  | 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) | | Quadrilátero Ferrífero (SE Brazil) documented by B isotopes (LA MC-ICPMS) in tourmaline Capucine Albert, Cristiano...Quadrilátero Ferrífero (SE Brazil) documented by B isotopes (LA MCICPMS) in tourmaline. The address for the...Quadrilátero Ferrífero (SE Brazil) documented by B isotopes (LA MC-ICPMS) in tourmaline Capucine Alberta*,... Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil Institut für Geowissenschaften...Archean Quadrilátero Ferrífero district (SE Brazil), tourmaline occurs as a major constituent in a leucogranitic |  | CHAUVET, A., PIANTONE, P., BARBANSON, L., NEHLIG, P., PEDROLETTI, I. (2001) Gold Deposit Formation during Collapse Tectonics:Structural, Mineralogical, Geochronological, and Fluid InclusionConstraints in the Ouro Preto Gold Mines, Quadril ateroFerrifero,Brazil. Economic Geology, 96 (1) 25-48 doi:10.2113/gsecongeo.96.1.25 | Journal (article/letter/editorial) | | Ouro Preto Gold Mines, Quadrilátero Ferrífero, Brazil A. CHAUVET,† Institut des Sciences de la Terre...The gold deposits of the Ouro Preto area (Minas Gerais, Brazil) occur along the main tectonic contact responsible...for the thrusting of the Paleoproterozoic units (Minas Supergroup) onto the gneissic and metasedimentary...elongate quartz grains associated with sulfides, tourmaline, and carbonates. Inferred hydrothermal effects...The gold deposits of the Ouro Preto area (Minas Gerais, Brazil) are currently interpreted as mesothermal |  | | Report (issue) | | Cassiterite, wolframite, topaz, fluorite, apatite, tourmaline, quartz (greisen); grossular–andradite, diopside...crystals include: from Sweden, at the Bispberg iron mine, near Säter, Dalarne. In Germany, from Altenberg...the Natas mine, about 80 km south of Windhoek, Namibia. Large crystals from the Tae wha mine, Chungju...the Cohen mine, Dragoon Mountains, Cochise Co.; commercially mined at the Pine Creek mine, near Bishop...Sonora, Mexico. In the Morro Velho gold mine, Nova Lima, Minas Gerais, Brazil. Name: Honors Karl Wilhelm |  | | Journal (article/letter/editorial) | | that Keith wandered around the neighboring gold mine dumps and developed an interest in minerals. He...found in 1967 in the Pioneira mine, Teofilo Otoni, Minas Gerais, Brazil. Downloaded by [Stockholm University...multicolored tourmaline from the Barra de Salinas mine, Aracuai-Itinga district, Minas Gerais, Brazil. Although...Although the owner did not wish to sell the tourmaline, he was willing to trade; and thus they negotiated...specializing in colored gemstones. Keith's travels in Brazil in search of gems and crystal specimens have added |
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