 | | 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 |  | Coelho, Mariana Barroso, Trouw, Rudolph Allard Johannes, Ganade, Carlos E., Vinagre, Rodrigo, Mendes, Júlio Cezar, Sato, Kei (2017) Constraining timing and P-T conditions of continental collision and late overprinting in the Southern Brasília Orogen (SE-Brazil): U-Pb zircon ages and geothermobarometry of the Andrelândia Nappe System. Precambrian Research, 292. 194-215 doi:10.1016/j.precamres.2017.02.001 | Journal (article/letter/editorial) | | overprinting in the Southern Brasília Orogen (SE-Brazil): U-Pb zircon ages and geothermobarometry of the...overprinting in the Southern Brasília Orogen (SE-Brazil): U-Pb zircon ages and geothermobarometry of the...overprinting in the Southern Brasília Orogen (SE-Brazil): U-Pb zircon ages and geothermobarometry of the...Rio de Janeiro, Brazil 2. Serviço Geológico do Brasil – SBG/CPRM, Rio de Janeiro, Brazil 3. Universidade...Universidade de São Paulo – USP, São Paulo, Brazil ABSTRACT The Andrelândia Nappe System (ANS) is an important |  | | Report (volume) | | Deposits in Minas Gerais Brazil GEOLOGICAL SURVEY BULLETIN 964-C Mica Deposits in Minas Gerais Brazil...M. BARBOSA and RESK FRAYHA, DIVISSO DE FOMENTO, BRAZIL GEOLOGIC INVESTIGATIONS IN THE AMERICAN REPUBLICS...da Produgao Mineral, Ministerio da Agricultura, Brazil, under the auspices of the Interdepartmental Committee...__________-___---_____---_-________ Exports of sheet mica from Brazil, 1900-1945-___-__-_______----______ General statement...___________________ Mica-mining industry in Minas Gerais.______________________________ General stat |  | | Report (issue) | | Igneous Rocks of the Quadrilatero Ferrifero, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-B...the Departmento Nacional da Producao Mineral of Brazil under the auspices oj the Agency for International...Ferrifero, Minas Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRlFERO, MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-B Prepared in cooperation with the Departmento...Departmento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Report (volume) | | workshop held December 1-10,1986, in Belo Horizonte, Brazil, was hosted by the Institute Brasileiro de Mineragao...Quintas, Mineragao Morro Velho Club, Nova Lima, Brazil December 4,1986 1. 2. 3. 4. 5. Sergio C. Guedes...Quadrilatero Ferrffero, Minas Gerais, Brazil Workshop: Belo Horizonte, Brazil, December 1-10,1986 Sponsors:...Data Gold deposits related to greenstone belts in Brazil Deposit modeling workshop; Part A Excursions /...deposits related to greenstone belts in Brazil, Belo Horizonte, Brazil, 1986, by Charles H. Thorman and Eduardo |  | | 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) | | SIX APRIL 1993 Cover Picture The Hematita mine in Minas Gérais in 1987 - probably the richest alexandrite...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil' pp. 333-54) ISSN: 0022-1252 F.G.A. your key...to be able to deterAlthough it is very important mine if if a gem is natural or synthetic, and treated...in topaz, apatite in spinel and corundum, and biotite in quartz. Conclusion Although the inclusion in...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil JacquesCassedanne, Cassedanne, D.Sc.,* Maurice |  | | Journal (article/letter/editorial) | | Crust-Mantle Evolution of Archean Crust in Central Brazil Jessica Bogossian *, Anthony I. S. Kemp and Steffen...Abstract: The Goiás Archean Block (GAB) in central Brazil is an important gold district that hosts several...evolution; Goiás Archean Block; central Brazil Central Brazil. Minerals 2021, 11, 944. https://doi.org/10...the only Archean terrane recognized in central Brazil (Figure 1A), was amalgamated into the Neoproterozoic...deposits. These include the worldclass Serra Grande mine, in the Crixás greenstone belt (≤7 Moz Au; AngloGold |  | | Journal (issue) | | Moore Recent discoveries of hydroxylherderite in Minas Gerais ..............................................typically abraded specimens you’ve found in the old mine dumps. And you’ve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...commonality: They can be very dangerous. Each year mine rescue specialists and conventional search and rescue...Statistically, shafts are the most dangerous part of any mine; 90 percent of all accidents and entrapments in |  | | Report (chapter) | | de São Paulo, São Paulo, Rua do Lago 562, SP, Brazil (e-mail: baseimas@usp.br) 2 Department of Geological...African sources. Crustal evolution in southern Brazil involved the Neoproterozoic Brasiliano orogenic...The Precambrian –Cambrian geology of southeastern Brazil and Uruguay is marked by the presence of the Paranapanema...Distribution of the main tectonic units of the southern Brazil and Uruguay (modified from Basei et al. 1999, 2000;...metalimestone, meta-calcisiltite, calc-schist and subordinately mica schist, iron formation plus schists of |  | | 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 |  | | 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_ ________________________ |  | | Book | | Cordani Fernando F. Alkmim Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature...Cordani Fernando F. Alkmim • Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature...Janeiro Maracanã, Rio de Janeiro Brazil Fernando F. Alkmim Escola de Minas Universidade Federal de Ouro...Preto Ouro Preto Brazil Umberto G. Cordani Universidade de São Paulo São Paulo Brazil ISSN 2364-6438...Panoramic view of the interior plateau of the northern São Francisco craton known as the Chapada Diamantina |  | | Report (issue) | | and Ore Deposits of the Itabira District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL Prepared...and Ore Deposits of the Itabira District Minas Gerais, Brazil By JOHN VAN N. DORR 20 and ALUIZIO LICINIO...GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-C...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation...Quartzite and meta-arkose(?)_________ Dolomitic schist ____________________ Other rocks________________________ |  | | Book | | Basei Geosciences Institute University of São Paulo São Paulo Brazil Pedro Oyhantçabal Departamento de Geodinámica...recognized similarities in the ‘old granites’ of Brazil and southern Africa. On the other hand, du Toit...‘Brazilian system’ defined by Alcide d’Orbigny in Brazil (Beaumont 1844), arguably corresponding to the...geochronological data of the Precambrian basement of southern Brazil, Uruguay and Argentina were reported by Hart (1966)...On the other hand, the Río de la Plata and Congo-São Francisco cratons were already amalgamated by c. |  | Klein, Evandro L., Lopes, Elem C.S., Rodrigues, Joseneusa B., Souza-Gaia, Sulsiene M., Cordani, Umberto G. (2020) Rhyacian and Neoproterozoic magmatic associations of the Gurupi Belt, Brazil: Implications for the tectonic evolution, and regional correlations. Geoscience Frontiers, 11 (6) 2243-2269 doi:10.1016/j.gsf.2020.02.016 | Journal (article/letter/editorial) | | Neoproterozoic magmatic associations of the Gurupi Belt, Brazil: Implications for the tectonic evolution, and regional...Neoproterozoic magmatic associations of the Gurupi Belt, Brazil: Implications for the tectonic evolution, and regional...Neoproterozoic magmatic associations of the Gurupi Belt, Brazil: 2 Implications for the tectonic evolution, and... Norte, Brasília-DF, Brazil, CEP: 70040-904 9 b Geological Survey of Brazil - SBN, Quadra 02, Bloco...do Pará, Belém-PA, Brazil 11 c 12 d 13 Universitária, São Paulo-SP, Brazil, CEP: 05508-080 Geological |  | | 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 (issue) | | the CapelinhaMalacacheta Area (State of Minas Gerais, Brazil)................................................... 247 WULFENITE—from level 4 of the 79 mine, Gila County, Arizona. The specimen was collected...Selection of Superb Gem Minerals recently acquired in Brazil. Also the Finest Dark Blue-Green Amazonite Groups...their help, and their country, where a change in mine ownership has also response has been wonderful....Individuals who have con sometimes meant a change in mine name. How many sented to serve as members of this |  | | Journal (article/letter/editorial) | | Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for evolution...Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for evolution...Mafic-Ultramafic Complexes, western Borborema Province, Brazil: geochemical and isotope constraints for evolution...Brasilia, Brasilia, DF, Brazil ²CPRM – Geological Survey of Brazil, Recife, PE, Brazil *Corresponding author...Brígida domains, Borborema Province, Northeast Brazil. Ultramafic lithologies including metadunites, |  | Wang, Qingfei, Zhao, Hesen, Groves, David I., Deng, Jun, Zhang, Qiwei, Xue, Shengchao (2020) The Jurassic Danba hypozonal orogenic gold deposit, western China: indirect derivation from fertile mantle lithosphere metasomatized during Neoproterozoic subduction. Mineralium Deposita, 55 (2) 309-324 doi:10.1007/s00126-019-00928-x | Journal (article/letter/editorial) | | these controversies. Danba is characterized by biotite–amphibole alteration and pyrrhotite-dominant ore...fluid calculated from hydrothermal quartz and biotite ranges from 10 to 12‰. The anomalously high S and...edge of a metamorphic core complex (dome). Bt biotite, Chl chlorite, Gt-St garnet-staurolite, Ky kyanite...quartzite, sillimanite–garnet– biotite schist, amphibole–biotite schist, and amphibolite (Figs. 2 and...assemblage together with coarse-grained red-brown biotite (Fig. 4a, b). Opaque minerals in these amphibolite–facies |  | | Journal (issue) | | ............... 93 by A. Falster The Rock Candy mine, British Columbia ................................COVER: ELBAITE on albite, from the Jonas mine, Minas Gerais, Brazil. Keith Proctor specimen; photo by Harold...Rio de Janeiro, Brazil INTRODUCTION Recently, a small pegmatite body in Minas Gerais has produced magnificent...are new to Brazil and very good specimens are still recoverable from the dumps or in the mine work ings...Laranjeiras and, after a short slope, reaches the mine at the eleva tion of 250 m. The Baixio road runs |  | | 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...for this research. Information on the Ouro Preto, Brazil, deposits would not have been as complete without...Carlos Barbosa, Brazil; Professor J. Cassedanne, Brazil; Ora M.H. Falabella, Brazil; Dr T. Lee, Australia; |  | | Book | | Lefever et al. Emeralds, 307 Complex, Zerfass Schist Lechleitner Emerald-Coated Beryl, 316 Linde...Deviations 371 Bolivia, 377 332 Proportions Brazil, 378 Angles of Faceted Bulgaria, 399 333 Burma... Cajon, Schmetzer, Heidelberg, De Janeiro, Brazil; Geological ton, VA; seum, Marie and Germany;...north of Thebes. No emeralds exist the emerald mine through stones. Qift as as other mineral, ...date of 1000 of Brazil. by the aborigines 40 Kunz inch (25 Indians of Brazil. these minerals In |  | | Book | | Antarctica 184 Argentina 184 Australia 185 Austria 187 Brazil 189 Colombia 195 India 197 Malagasy Republic 198...Aquamarine; Brazil, India, Malagasy Republic, Namibia, USA, USSR. Bixbite; USA (rare) Emerald; Brazil, Colombia...Malagasy Republic, Brazil, USA (rare) Heliodor; Brazil, Malagasy Republic, Namibia Maxixe; Brazil (rare) Morganite;...Morganite; Brazil, Malagasy Republic, Namibia, USA xiii Chapter 1 Emerald and beryl in antiquity Although...as one of the first to make a serious attempt to mine the Habachtal emerald deposit. It is reported that |  | | Book | | 184 Argentina 184 Australia 185 Austria 187 179 Brazil 189 Colombia 195 India 197 Malagasy Republic Mexico...=Aquamarine; Brazil, India, Malagasy Republic, Namibia, USA, USSR. Bixbite; USA (rare) Emerald; Brazil, Colombia...Malagasy Republic, Brazil, USA (rare) Heliodor; Brazil, Malagasy Republic, Namibia Maxixe; Brazil (rare) Morganite;...Morganite; Brazil, Malagasy Republic, Namibia, USA Xill —_ = 7 - Pease iS ean, 2a al + =a? 860)...was one of the first to make a serious attempt to mine the Habachtal emerald deposit. It is reported that |
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