 | | 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 |  | Ferreira, Raianny Carolini Ramos, Pinheiro, Marco Aurélio Piacentini, Magalhães, Joana Reis, Novo, Tiago Amâncio, Schorscher, Johann Hans Daniel, Queiroga, Gláucia (2020) Physical volcanology and petrogenesis of the Archean Quebra Osso komatiite flow field, Rio das Velhas greenstone belt, Quadrilátero Ferrífero (Brazil). Lithos, 370. 105626pp. doi:10.1016/j.lithos.2020.105626 | Journal (article/letter/editorial) | | Velhas Greenstone Belt, Quadrilátero Ferrífero (Brazil) Raianny Carolini Ramos Ferreira, Marco Aurélio...Velhas Greenstone Belt, Quadrilátero Ferrífero (Brazil), LITHOS (2020), https://doi.org/ 10.1016/j.lithos...Velhas Greenstone Belt, Quadrilátero Ferrífero (Brazil) Raianny Carolini Ramos Ferreiraa,b,* raianny.ferreira@cprm...aGeological Survey of Brazil, Av. Brasil 1731, CEP 30140-002, Belo Horizonte, MG, Brazil f de Pesquisa Manoel...Geociências, Universidade oo bCentro Federal de Minas Gerais (CPMTC-IGC-UFMG), Campus Pampulha, Av. Antônio |  | | Journal (issue) | | Update on Imperial Topaz from the Capio Mine, Minas Gerais, Brazil Daniel A. Sauer, Alice S. Keller, and Shane...ABOUT THE COVER: The historic Ouro Preto region of Minas Gerais, Brazil, is world-renown for the fine...Marketed as "Imperial" topaz in the trade, the Ouro Preto topazes come in a broad range of hues, some of...respectively. Courtesy of Amsterdam Sauer Company, Brazil. Photo 0Harold o)Erica Van Pelt-Photographers,...Papers were submitted from all over the world: Brazil, France, Germany, Great Britain, Myanmar, the Netherlands |  | | 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 |  | | Report (issue) | | Development of the Quadrilatero Ferrifero Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-A...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...Development of the Quadrilatero Ferrifero Minas Gerais, Brazil By JOHN VAN N. DORR 2d REGIONAL GEOLOGY...GEOLOGY OF THE QUADRILATERO FERRIFERO, MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-A...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International |  | | Book | | Egypt 132 Argentina 132 Australia 133 Austria 135 Brazil 135 Bulgaria 155 Canada 156 Commonwealth of Independent...familiarity with Brazil and the importance of the 'Imperial' topaz deposits at Ouro Preto, Brazil, in the world...assumed importance) in the trade of deposits in Brazil and the former USSR, particularly those of pink...available for this research. Information on the Ouro Preto, Brazil, deposits would not have been as complete...Carlos Barbosa, Brazil; Professor J. Cassedanne, Brazil; Ora M.H. Falabella, Brazil; Dr T. Lee, Australia; |  | | Journal (issue) | | County, Virginia, Virginia, Minas Minas Gerais, Gerais, Brazil, Brazil, Madagascar, Madagascar, Sri...1.802(3) Taita Hills, Kenya 2 1.795-1.809 Minas Gerais, Brazil3 1.803-1.805 4 Composition Garnets...from Ouro OuroPreto, Preto, Imperial Brazil:chemical chemicalcharacter characterand and Brazil: thermal...Universidade Federal Ouro Preto, 35400, Ouro Preto, MG, Brazil Universidade Federal dede Ouro Preto, 35400, Ouro...Ouro Preto, MG, Brazil ABSTRACT: Imperial Imperialtopaz topazfrom fromtwo twomining miningfields fieldsnear |  | Teixeira, João Batista Guimarães, de Souza, Jorge André Braz, da Silva, Maria da Glória, Leite, Carlson Matos Maia, Barbosa, Johildo Salomão Figueiredo, Coelho, Carlos Eduardo Silva, Abram, Maisa Bastos, Filho, Valter Mônaco Conceição, Iyer, Sundaram S.S. (2001) Gold mineralization in the Serra de Jacobina region, Bahia Brazil: tectonic framework and metallogenesis. Mineralium Deposita, 36 (3) 332-344 doi:10.1007/s001260100174 | Journal (article/letter/editorial) | | mineralization in the Serra de Jacobina region, Bahia Brazil: tectonic framework and metallogenesis Received:...Serra de Jacobina region in Bahia, northeastern Brazil, occur in a belt of siliciclastic metasedimentary...UniversitaÂrio de Ondina, CEP 40170-290, Salvador, Bahia, Brazil E-mail: jbt@ufba.br M.B. Abram Companhia de Pesquisa...Administrativo da Bahia, CEP 41213-000, Salvador, Bahia, Brazil V.M.C. Filho Companhia Baiana de Pesquisa Mineral...Administrativo da Bahia, CEP 41750-300, Salvador, Bahia, Brazil S.S.S. Iyer Department of Physics and Astronomy |  | | Journal (article/letter/editorial) | | the QuadrilaÂtero FerrõÂ fero region, Minas Gerais state, Brazil, one of the major gold provinces in the...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...35400-000, Brazil F.W.R. Vieira MineracËaÄo Morro Velho Ltda., Fazenda Rapaunha s/ no., Nova Lima, Minas Gerais |  | | Report (issue) | | and Ore Deposits of the Alegria District, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J...the Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International...District, Minas Gerais, Brazil By CHARLES H. MAXWELL GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J Prepared in cooperation with the Departamento...Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Report (issue) | | the Nova Lima and Rio Acima Quadrangles Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-A...the Departamento N acional da Producao Mineral of Brazil under the auspices of the International Cooperation...Quadrangles Minas Gerais, Brazil By JACOB E. GAIR GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation...bodies Age relations__ __ 6 33 '58 6 Raposos mines Minas series6 33 60 Bicalho mine 6 33 Caraga group6 60 |  | 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...and Mesoproterozoic metasedimentary units of the Minas Supergroup, the Itacolomi Group and the Espinhaço |  | Brenner, T. L., Teixeira, N. A., Oliveira, J. A. L., Franke, N. D., Thompson, J. F. H. (1990) The O'Toole nickel deposit, Morro do Ferro greenstone belt, Brazil. Economic Geology, 85 (5) 904-920 doi:10.2113/gsecongeo.85.5.904 | Journal (article/letter/editorial) | | Nickel Deposit, Morro do Ferro GreenstoneBelt, Brazil T. L. BRENNER,*N. A. TEIXEIRA,J. A. L. OLIVEIRA...H. THOMPSON BP MineraqtioLtda., Bio de Janeiro,Brazil Abstract The O'Tooleorebodyis the firstsignif...foundin Brazil. It is in the ArchcanMorro do Ferro greenstonebelt in the southwestpart of Minas Gerais,Brazil...Ferro greenstonebelt in the southernedge found in Brazil. Introduction of the major ArchcanParamirimcratonin...local geologyhas been describedbriefly by part of Brazil. Since 1981, BP Minera95o Ltda. has Moraes (1935) |  | 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) | | Velhas greenstone belt, Quadrilátero Ferrífero, Brazil Diogenes Scipioni Vial a,⁎, Ed DeWitt b , Lydia...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...deposit, Quadrilátero Ferrífero region, Minas Gerais, Brazil, is hosted by rocks at the base of the Archean...Orogenic Archean gold; Quadrilátero Ferrífero; Brazil; Greenstone belt; Lapa seca 1. Introduction The |  | | Journal (article/letter/editorial) | | the green chromian variety of muscovite called fuchsite have been found at Graves Mountain, Lincoln County...from Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil. The field of view is 3 cm. Van King specimen...from Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil. Superior specimens of “startwinned” muscovite...wide, from the Xanda mine, Virgem da Lapa, Minas Gerais, Brazil. Luiz Menezes specimen, Jeff Scovil photo...albite, 8.4 cm wide, from Virgem da Lapa, Minas Gerais, Brazil. When collectors think of muscovite, examples |  | Chemale, Farid, Dussin, Ivo A., Alkmim, Fernando F., Martins, Maximiliano Sousa, Queiroga, Gláucia, Armstrong, Richard, Santos, Marcelo N. (2012) Unravelling a Proterozoic basin history through detrital zircon geochronology: The case of the Espinhaço Supergroup, Minas Gerais, Brazil. Gondwana Research, 22 (1) 200-206 doi:10.1016/j.gr.2011.08.016 | Journal (article/letter/editorial) | | geochronology: The case of the Espinhaço Supergroup, Minas Gerais, Brazil Farid Chemale Jr. a,⁎, Ivo A. Dussin b,...IG-UnB, 70904-970, Brasília-DF, Brazil CPGEO/USP, São Paulo, SP, Brazil IGC-UFMG, Campus da Pampulha, Belo...Horizonte, MG, Brazil d DEGEO/EM/UFOP, Morro do Cruzeiro, 35400–000, Ouro Preto, MG, Brazil e RSES, ANU...Canberra, Australia f PPGGEO, UFRGS, Porto Alegre-RS, Brazil b c a r t i c l e i n f o Article history: Received...Araçuaí Orogen. Located in Southern Espinhaço, Minas Gerais, the following two basins were formed in intraplate |  | | Catalog/List | | $5.00, $7. 50. EMERALD CRYSTALS Vittorio, Bahia, Brazil. Beryllium silicate. Sharp single transparent to...Mineralogy, Vol. II, #10, page 7. I FUCHSITE Ouro Preto, Minas Gerais, Brazil. Basic potassium aluminum chromium...ZIRCON Zirconium silicate. Serra de Caldas, Minas Gerais, Brazil. NEW FIND. Very large brown tetragonal single...$7.50 SPHENE Calcium titanium silicate. Minas Gerais, Brazil. NEW FIND. Very sharp single twinned xls |  | | Report (issue) | | Mineral Resources of the Congonhas District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 290...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_ ________________________ |  | | Journal (article/letter/editorial) | | Goldschmidt, Clarke and Washington. (4) In Northeastern Brazil, mostly in the State of Paraiba, intense mining...own investigation of gold-veinsin the State of Minas Gerais,and Hussakand Derby'sas well, with the purposeof...municipalityof Ouro Preto, and of Morro Velho, in Nova Lima, besidesothers in the State of Minas Gerais, where...full with findingsby the geologicsurvey of Mid Minas Gerais, where Proterozoic formations are located....or infiltratesacrossschists and turns them into fuchsite-richphyllites. Copperlies within veins in many |  | | Catalog/List | | 50, 2x3-$3.50, $4.00/lb. BRAZILIANITE - Minas Gerais, Brazil - pure yellowish green X. segments & cleavages...Carolina - colorful com pact pink masses with some fuchsite - 1"-15C, lxl25C, lx2-50c, 2x2-$1. 00, 2x3-$1...2x2-35c;, 2x3-50c;, 3x3-75c;, 3x4-$1.25, 50c;/1b . FUCHSITE - Freeport, Maine - green micaceous with some....511-lc, 5/8"-3c, 3/4 "-Sc QUARTZ - Amethyst - Brazil - geode fragments of richly colored undamaged X...$5.00, $6.00, $8.00/lb. 21 SPOD UMENE - Minas Gerais, Brazil - clean transparent pale ye llowish green |  | | Report (issue) | | Horizonte, Ibirite, and Macacos Quadrangles Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-D...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation...Quadrangles Minas Gerais, Brazil By JOEL B. POMERENE GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-D Prepared in cooperation with the Departamento...Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation Administration |  | | 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...SETTING The Rocks.bThe high-gradehematiteoresof Minas Geraisoccurin metasedimentaryrocks of unknownbut |  | | Report (issue) | | Resources of the Pico de Itabirito District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL Prepared...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...District Minas Gerais, Brazil By ROBERTS M. WALLACE GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-F Prepared in cooperation with the Departamento...Departamento Nacional da Producao Mineral of Brazil under the au-spices of the Agency for International Development |  | | Journal (issue) | | cm, from near Galileia, Rio Doce Valley, Minas Gerais, Brazil. Roberto Appiani photo. IIEMATITE with... from the Santa Rosa mine, Doce Valley, Minas Gerais, Brazil. Jeff Scovil photo. Supplement to The Mineralogical...terminated scepter from the Medina mine, Minas Gerais, Brazil. Jeff Scovil photo. (above left) ELBAITE...the Pederneira mine, Sao Jose da Safira, Minas Gerais, Brazil. Jeff Scovil photo. SCHEELITE on muscovite...twins found in 1940 at Itagua~u, Espirito Santo, Brazil. Jeff Scovil photo. Supplement to The Mineralogical |  | | Journal (article/letter/editorial) | | studies have been made on several chromium micas (fuchsite and mariposite) of the type associated with many...gold deposits. A study of available analyses of fuchsite, including a new one by Whitmore yieldd the following... representing the ideal unit cell content. In fuchsite Cr replaces Al up to 4.8lVo Cr1OB,cofie' sponding...chromium per unit cell. Optical properties of fuchsite show 30"-46", the following variation: a= 1.559to...X-ray studies confirm the structural identity of fuchsite with muscovite. The varietal name chromian muscotiteis |
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Ouro Preto, Minas Gerais, Brazil