 | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit João Adauto Souza Neto...located in the Borborema Province in northeastern Brazil and consists of a gneiss basement (Archean to Paleo-Proterozoic)...locally gold. Recently, the discovery of gold in the Bonfim tungsten skarn has resulted in a better understanding...Recife, Brazil e-mail: adauto@ufpe.br J. M. Legrand Departamento de Geologia, Universidade Federal do Rio...Rio Grande do Norte, Campus Universitário, Lagoa Nova, CEP 59.072-970 Natal, Brazil M. Volfinger : M.-L |  | | Journal (article/letter/editorial) | | ore fluids in the Bonfim and Itajubatiba gold skarn deposits, Northeastern Brazil: a PIXE method study...Legrand Federal University of Rio Grande do Norte State, 59.072-970, Natal, Brazil CRSCM - CNRS, 45.071, Orl6ans...skarn deposits, in Northeastern Brazil: Itajubatiba (Au) and Bonfim (W-Au). The principal objective is...chalcopyrite; (4) Quartz, calcite, pyrite, arsenopyrite, hematite and gold. Gold occurs either disseminated or in...rocks. The Bonfim W-Au deposit is situated 27 km southeast of the town of Lajes in the state of Rio Grande |  | Velásquez Ruiz, Felipe, Della Giustina, Maria Emilia Schutesky, de Oliveira, Claudinei Gouveia, Dantas, Elton Luiz, Hollanda, Maria Helena Bezerra (2019) The 3.5 Ga São Tomé layered mafic-ultramafic intrusion, NE Brazil: Insights into a Paleoarchean Fe-Ti-V oxide mineralization and its reworking during West Gondwana assembly. Precambrian Research, 326. 462-478 doi:10.1016/j.precamres.2018.03.011 | Journal (article/letter/editorial) | | São Tomé layered mafic-ultramafic intrusion, NE Brazil: Insights into a Paleoarchean Fe-Ti-V oxide mineralization...São Tomé layered mafic-ultramafic intrusion, NE Brazil: Insights into a Paleoarchean Fe-Ti-V oxide mineralization...São Tomé layered mafic-ultramafic intrusion, NE Brazil: Insights into a Paleoarchean Fe-Ti-V oxide mineralization...Brasília DF, Brazil b Instituto de Geociências, Universidade de São Paulo, São Paulo 05508-080, Brazil *Corresponding...intrusion, located in the Borborema Province, NE Brazil, consists of a group of metamorphosed dismembered |  | | Journal (issue) | | INSTITUTE OF AMERICA Emeralds from Northeastern Brazil Diamantine: Coated Cubic Zirconia Precision Measurement...3 Emeralds from the Fazenda Bonfim Region, Rio Grande do Norte, Brazil J. C. (Hanco) Zwaan, Dorrit E...Polished emeralds from this deposit in northeastern Brazil, discovered in 2006, typically display a saturated...from Pakistan • Cat’s-eye emerald from Belmont, Brazil • Meteorite watches • Purple common opal from Mexico...of the publisher. About the Cover For decades, Brazil has been one of the world’s major sources of fine |  | | Book | | AV. PRESIDENTE WILSON, 231 - RIO DE JANEIRO MINES AND MINERALS IN BRAZIL --= ··--· ··- ·-·=- MINES... MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC DIVISION - MINISTRY OF FOREIGN AFFAIRS) CENTRO DE...DE ESTUDOS ECONOMICOS RIO DE JANEIRO PREFACE This book was planned by Dr. Arno Kondei· - head of the...regarding water power and industry of electr·icity in Brazil were specially prepared at the Division of Waters........ 189 SUMMARY OF THE MINERAL RESERVES OF BRAZIL..... . ... ....... . .. 199 STATISTICAL TABLES |  | | Report (issue) | | Iron Deposits of the Western Serra do Curral, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...Iron Deposits of the Western Serra do Curral, Minas Gerais, Brazil By GEORGE C. SIMMONS GEOLOGY AND MINERAL...MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-G Prepared...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International |  | 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) | | deposits in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil D.S. Vial a,⁎, G.C...c a CVRD—Companhia Vale do Rio Doce, BR 381, km 450, Santa Luzia, MG, Brazil Instituto de Geociências...Amparo à Pesquisa do Estado de São Paulo, Rua Major Solbiat, 226, Torrinha, SP, Brazil Fundação Educacional...BR-116, Km 526, Bairro das Graças, Caratinga, MG, Brazil b c Received 26 June 2003; accepted 2 January...occurrences in the Archean greenstone belt comprising the Rio das Velhas Supergroup. There are numerous small gold |  | | Journal (article/letter/editorial) | | terrain (Quadrilátero Ferrı́fero, southeastern Brazil) J. Hippertt a,*, B. Davis b a Departamento de...Federal de Ouro Preto, 35400 -000 Ouro Preto, MG, Brazil b Delta Gold NL, P.O. Box 152, Kalgoorlie, Western...which model has operated in cases where the synclines do not define continuous encircling geometries around...southeastern Brazil (Fig. 1). It comprises a supracrustal sequence of Archaean metavolcanic rocks (the Rio das...(Machado and Carneiro, 1992) indicates that the Rio das Velhas greenstone unit was deposited on an Archaean |  | | Journal (article/letter/editorial) | | ...... 7 Lag6a Grande .................................................. 7 Capitio do Mato ................ 12 13 15 15 15 19 20 20 21 ABSTRACT. Brazil has beena small but consistentsourceof manganeseore...manganesesilicatecarbonate-sulfideprotore. (b) The Lag6a Grande type, enclosedin itabirite, in which lean manganiferous...unknown sources. It is probablethat the Lag6a Grande type is closelyrelated in ultimate origin to the...reservesof export-gradeore. Many depositsof the Lag6a Grande type are known and the aggregatereservesare large |  | | Journal (article/letter/editorial) | | oval platelet phlogopite; red spot or skeletal hematite; black spot, platelet, or dendritic oxide inclusions...The Kamakanga deposit is hosted by of the local mine. The majority of the studied samples appeared as...samples were obtained from the owner of the local mine. The majority of the studied samples appeared as...green platelet of phlogopite, red spot or skeletal hematite, black spot or platelet or dendritic oxide, tremolite...Minerals 2023, 12, x FOR PEER REVIEW 7 of 18 let hematite in emerald (KAM-42); (d) Black dendritic oxide |  | | Journal (article/letter/editorial) | | ARCHAEAN TERRANES A REVIEW 107 OF CENTRAL EASTERN BRAZIL: A. BERNASCONI* BP Minerals International Llmzted...1983. The Archaean terranes of central eastern Brazil: a review Precambrian Res., 23" 107--131. This...domains appear to be present in central eastern Brazil, i.e., the S~o Francisco Craton and the Jequi~...Ltda., Rua Martins Ferreira, 75, Botafogo, Rio de Janeiro, Brazil. 0301-9268/83/$03.00 © 1983 Elsevier...Publishers B.V 108 GREENSTONE LITHOS~RATIGRAPHIC l - rio H,pICUNU Z RliCRO DOs MACHA~ 5 ] GOUVEI/I PlUll |  | Hensler, Ana-Sophie, Hagemann, Steffen G., Brown, Philip E., Rosière, Carlos A. (2014) Using oxygen isotope chemistry to track hydrothermal processes and fluid sources in itabirite-hosted iron ore deposits in the Quadrilátero Ferrífero, Minas Gerais, Brazil. Mineralium Deposita, 49 (3) 293-311 doi:10.1007/s00126-013-0486-z | Journal (article/letter/editorial) | | deposits in the Quadrilátero Ferrífero, Minas Gerais, Brazil Ana-Sophie Hensler & Steffen G. Hagemann & Philip...Heidelberg 2013 Abstract The Quadrilátero Ferrífero, Brazil, is presently the largest accumulation of single...from oldest to youngest: magnetite → martite (hematite pseudomorph after magnetite) → granoblastic (recrystallised)...<100 μm) → specular (coarse-grained, >100 μm) hematite. Laserfluorination oxygen isotope analyses of...9‰ and is up to 11‰ depleted in 18O relative to hematite of the host itabirite. During the modification |  | | Journal (article/letter/editorial) | | com/loi/tigr20 Geology and Mineral Resources of Brazil: A Review a a Inacio De Medeiros Delgado , Augusto...Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil b US. Geological Survey, Denver, CO, 80225 Version...Thorman (1994): Geology and Mineral Resources of Brazil: A Review, International Geology Review, 36:6,...rights reserved. Geology and Mineral Resources of Brazil: A Review INACIO DE MEDEIROS DELGADO, AUGUSTO J...Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil AND CHARLES H. THORMAN US. Geological Survey, Denver |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title |  | | Journal (issue) | | Articles 708 Coloured Stone Mining and Trade in Brazil: A Brief History and Current Status By Aurélien...Collection V. L. Villani photo p. 758 Cover Photo: Brazil is the source of a variety of coloured stones,...blood ruby, royal blue and cornflower sapphire, old mine/ Muzo green emerald, sunrise and sunset padparadscha...The source of much of this pyrite is the Huanzala mine in west-central Peru, which has probably yielded...emerged from another Peruvian deposit: the Quiruvilca mine in northern Peru. The as-mined specimens typically |  | | 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...Weber" within the mafic metavolcanic unit of the Rio Itapicuru belt and other small gold occurrences such...of the most important Archaean gold districts of Brazil, the Iron Quadrangle of Minas Gerais (Fig. 1), |  | | Journal (article/letter/editorial) | | as well as a host of other minerals including hematite, pyrite, pyrrhotite, zircon, molybdenite and galena...the octahedral and tetrahedral substitution, and do not substitute for Be or Al (Auriscchio et al., 1988)...of emerald occur in Colombia, Zambia, Pakistan, Brazil, Russia, Afghanistan, Zimbabwe and Madagascar....1986). Although the earlier Somerset mine and the later Cobra mine have been the main source of the emeralds...the 1960s, the Gravelotte Project was the largest mine of its type in the world, employing over 400 sorters |  | Martínez Dopico, Carmen I., Lana, Cristiano, Moreira, Hugo S., Cassino, Lucas F., Alkmim, Fernando F. (2017) U–Pb ages and Hf-isotope data of detrital zircons from the late Neoarchean-Paleoproterozoic Minas Basin, SE Brazil. Precambrian Research, 291. 143-161 doi:10.1016/j.precamres.2017.01.026 | Journal (article/letter/editorial) | | late NeoarcheanPaleoproterozoic Minas Basin, SE Brazil Carmen I. Martínez Dopico, Cristiano Lana, Hugo...late Neoarchean-Paleoproterozoic Minas Basin, SE Brazil, Precambrian Research (2017), doi: http://dx.doi...late NeoarcheanPaleoproterozoic Minas Basin, SE Brazil a1* a b Carmen I. MARTÍNEZ DOPICO , Cristiano...Federal de Ouro Preto, Ouro Preto, MG 35400-000, Brazil. b School of Earth and Environmental Sciences...Paleoproterozoic Minas Basin (Minas Supergroup, SE of Brazil) is one of the best-studied basins in South America |  | | Journal (article/letter/editorial) | | Economic Geology Vol. 99, pp. 611–624 THE ORIGIN OF HEMATITE IN HIGH-GRADE IRON ORES BASED ON INFRARED MICROSCOPY...STUDIES: THE EXAMPLE OF THE CONCEIÇÃO MINE, QUADRILÁTERO FERRÍFERO, BRAZIL CARLOS ALBERTO ROSIÈRE† Instituto...Federal de Minas Gerais, 31270-901 Belo Horizonte MG, Brazil AND FRANCISCO JAVIER RIOS Fluid Inclusion and...(CDTN-CNEN), Cx. Postal 941, 30123-970 Belo Horizonte MG, Brazil Abstract Petrographic and textural analysis combined...by infrared microscopy of highgrade (>65% Fe) hematite ore samples from the Conceição deposit, in the |  | 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) | | deposit in the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil Diogenes Scipioni Vial...a Companhia Vale do Rio Doce-CVRD, BR 381, Km 459, Santa Luzia, MG, 33010-970, Brazil United States Geological...6627, Pampulha, Belo Horizonte, MG, 31270-901, Brazil d CTGS Intl., Inc., 12464 W. 2nd Drive, Lakewood...region, Minas Gerais, Brazil, is hosted by rocks at the base of the Archean Rio das Velhas greenstone...and spatial association of the deposit with the Rio das Velhas orogeny, and location in close proximity |  | | Report (issue) | | the Departmento National da Produ^ao Mineral of Brazil under the auspices of the Agency for International...Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRIFERO, MINAS GERAIS, BRAZIL GEOLOGICAL...the Departmento Nacional da Produqao Mineral of Brazil under the auspices of the Agency for International...Minas Gerais, Brazil. (Regional geology of the Quadrilatero Ferrifero, Minas Gerais, Brazil) (Geological...Petrology Brazil Quadrilatero do Ferro. 3. Geology, Stratigraphic Pre-Cambrian. I. Brazil. Departamento |  | | Journal (volume) | | volume. TIER 1 RIO TINTO EXPLORATION Rio Tinto Exploration Pty. Ltd. Companhia Vale do Rio Doce (Vale)...of Banded Iron Formation-Hosted High-Grade Hard Hematite Deposits—A Paleomagnetic Approach M. O. de Kock...Geochemistry of Banded Iron Formation-Hosted High-Grade Hematite-Martite Iron Ores J. Gutzmer, Benny C. Chisonga...Genesis of Giant Banded Iron Formation-Hosted Hematite Ore Deposits John G. McLellan and Nicholas H....Giant Serra Norte Iron Ore Deposits in the Carajás Mineral Province, Pará State, Brazil Rosaline Figueiredo |  | | Report (issue) | | Development of the Quadrilatero Ferrifero Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-A Prepared...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 OF THE...THE QUADRILATERO FERRIFERO, MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-A Prepared...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International |  | | Book | | CONSTITUIÇÃO E EVOLUÇÃO 7 - COMPARTIMENTAÇÃO GEOLÓGICA DO BRASIL Yociteru Hasui 8 - QUADRO GERAL DA EVOLUÇÃO...BRASIL-ÁFRICA Yociteru Hasui 9 - ESTÁGIOS EVOLUTIVOS DO BRASIL NO FANEROZOICO Celso Dal Ré Carneiro, Fernando...Cratônicas 10 10a - CRÁTON AMAZÔNICO: PROVÍNCIAS RIO BRANCO E TAPAJÓS Yociteru Hasui 10b - SERRA DOS CARAJÁS...SERRA DO URUCUM Andrea Bartorelli 10d - MONTE RORAIMA E PICO DA NEBLINA, PONTOS CULMINANTES DO BRASIL...memorian) 11c - SERRA DO ESPINHAÇO E CHAPADA DIAMANTINA Fernando Flecha Alkmim 11d - BACIA DO SÃO FRANCISCO Pedro |  | 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) | | Tourmaline in the Passagem de Mariana gold deposit (Brazil) revisited: major-element, trace-element and B-isotope...Geociências, Universidade de São Paulo, São Paulo, Brazil 3 Instituto de Geociências, Universidade Estadual...Campinas, São Paulo, Brazil 4 Serviço Geológico do Brasil (CPRM), Belo Horizonte, MG, Brazil tourmaline (Fig...Gerais, Brazil) modified from Koglin et al. (2014) and Dorr (1969). The Passagem de Mariana mine is located...anorogenic granite-gneiss complexes (e.g., Bação, Bonfim, and Caeté; Dorr 1969; Teixeira Miner Deposita |
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