 | | Journal (article/letter/editorial) | | 501-507 Kyanite-staurolite ortho-amphibolite from the Chapada region, Goi s, central Brazil RAUL MINASKUYUMJIAN...Brasilia, 70910-900 Brasilia, Brazil This study deals with the kyanite-staurolite assemblage from a metabasite...metabasite (ortho-amphibolite) in the Chapada area of the Neoproterozoic Mara Rosa volcano-sedimentary sequence...sequence of Goifis state, Brazil. It is closely associated with hydrothermally altered rocks and contains...kyanite, stanrolite, plagioclase and rutile. The staurolite from the amphibolite shows lower values of SiO2 |  | | Book | | Alkmim Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature Continent Regional...Alkmim • Editors São Francisco Craton, Eastern Brazil Tectonic Genealogy of a Miniature Continent 123...Estado do Rio de Janeiro Maracanã, Rio de Janeiro Brazil Fernando F. Alkmim Escola de Minas Universidade...Preto Ouro Preto Brazil Umberto G. Cordani Universidade de São Paulo São Paulo Brazil ISSN 2364-6438...the northern São Francisco craton known as the Chapada Diamantina. The cliffs and mesas expose the Mesoproterozoic |  | | Report (chapter) | | Neoproterozoic Macaúbas Group, Araçuaı́ orogen, SE Brazil A. C. PEDROSA-SOARES1*, MARLY BABINSKI2, CARLOS...Geociências-CPMTC, Campus Pampulha, 31270-901 Belo Horizonte, MG, Brazil 2 Universidade de São Paulo, Instituto...Cidade Universitária 05508-080 São Paulo, SP, Brazil *Corresponding author (e-mail: pedrosa@pesquisador...eastern margin of the São Francisco craton (SE Brazil). The Macaúbas basin evolved from a late Tonian...Nova Aurora and Lower Chapada Acauã formations, and the post-glacial Upper Chapada Acauã and Ribeirão |  | | Journal (article/letter/editorial) | | Neoproterozoic Mara Rosa magmatic arc, central Brazil Claudinei G. de Oliveira *, Márcio M. Pimentel...Universidade de Brası́lia, Brası́lia-DF, 70910.900, Brazil Received 18 August 2003; accepted 24 April 2004...the Neoproterozoic Goiás Magmatic Arc, central Brazil, dates back to the beginning of the 1970s. The...eNd(T) values between + 3.0 and + 4.6. In the Chapada – Mara Rosa area, the supracrustal rocks form three...disseminated volcanogenic deposits, (ii) Cu – Au (e.g., Chapada) which has been interpreted either as volcanogenic |  | Peixoto, Eliza, Alkmim, Fernando F., Pedrosa-Soares, Antônio, Lana, Cristiano, Chaves, Alexandre O. (2018) Metamorphic record of collision and collapse in the Ediacaran-Cambrian Araçuaí orogen, SE-Brazil: Insights fromP-Tpseudosections and monazite dating. Journal of Metamorphic Geology, 36 (2) 147-172 doi:10.1111/jmg.12287 | Journal (article/letter/editorial) | | collapse in the Ediacaran-Cambrian Araçuaí orogen, SE-Brazil: Insights from P-T pseudosections and monazite... MG, Brazil 2 Universidade Federal de Minas Gerais, CPMTC-IGC, Campus Pampulha, Belo Horizonte 31.270...270.901, MG, Brazil * Corresponding author: einpeixoto@gmail.com # Fellow of the Brazilian Research Council...fold-thrust system (SE-thrust system), the normal-sense Chapada Acauã shear zone (CASZ), and the Salinas synclinorium...exposed across the Araçuaí orogen in southeastern Brazil (Figure 1) comprise a sequence of metamorphic assemblages |  | Bitencourt, Caroline Novais, Cruz, Simone Cerqueira Pereira, dos Anjos Cruz, Vanderlucia, Pedrosa-Soares, Antônio Carlos, Paquette, Jean Louis, Alkmim, Ana Ramalho, Barbosa, Johildo Salomão Figueiredo (2019) Rifting events in the southern sector of the Paramirim Aulacogen, NE Brazil: New geochronological data and correlations for the São Francisco – Congo paleocontinent. Precambrian Research, 326. 417-446 doi:10.1016/j.precamres.2018.12.005 | Journal (article/letter/editorial) | | southern sector of the Paramirim Aulacogen, NE Brazil: new geochronological data and correlations for...southern sector of the Paramirim Aulacogen, NE Brazil: new geochronological data and correlations for...southern sector of the Paramirim Aulacogen, NE Brazil: new geochronological data and correlations for...(IGC–CPMTC), Campus Pampulha, 31270-901, Belo Horizonte, Minas Gerais, Brasil, pedrosasoares@gmail.com...The second lithofacies association comprises staurolite-garnet-quartz-biotite aluminous 1 schist and |  | Falci, André, Caxito, Fabrício de Andrade, Seer, Hildor José, Valeriano, Cláudio de Morisson, Dias, Paulo Henrique Amorim, Pedrosa-Soares, Antônio Carlos (2018) Provenance shift from a continental margin to a syn-orogenic basin in the Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil. Precambrian Research, 306. 209-219 doi:10.1016/j.precamres.2018.01.004 | Journal (article/letter/editorial) | | Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil André Falci, Fabrício de Andrade Caxito, Hildor...Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil, Precambrian Research (2018), doi: https://doi...Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil André Falci1, Fabrício de Andrade Caxito1*, Hildor...Antônio Carlos 6627, CEP 31270-901, Belo Horizonte, MG, Brazil 2 - Centro Federal de Educação Tecnológica... Olavo Drumond, 25, CEP 38180-510, Araxá (MG), Brazil. 3 - Universidade do Estado do Rio de Janeiro, |  | | Report (chapter) | | IGC-CPMTC, Campus Pampulha, 31270-901 Belo Horizonte, MG, Brazil (e-mail: pedrosa@pesquisador.cnpq.br) 2... Campus do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil 3 Royal Museum for Central Africa, 3080 Tervuren...São Paulo, Brazil 5 Serviço Geológico do Brasil-CPRM, 70830-030 Brası́lia, DF, Brazil Abstract:...located to the SE of the São Francisco Craton in Brazil, and to the SW of the Congo Craton in Africa. From...domains located to SE of the São Francisco Craton in Brazil, and to SW of the Congo Craton in Africa (Fig. |  | Richardson, Stephen V., Kesler, Stephen E., Essene, Eric J., Jones, Lois M. (1986) Origin and geochemistry of the Chapada Cu-Au deposit, Goias, Brazil; a metamorphosed wall-rock porphyry copper deposit. Economic Geology, 81 (8) 1884-1898 doi:10.2113/gsecongeo.81.8.1884 | Journal (article/letter/editorial) | | and Geochemistryof the ChapadaCu-Au Deposit,Goias,Brazil: A MetamorphosedWall-RockPorphyryCopper Deposit...CONOCO,Inc., PoncaCity, Oklahoma74601 Abstract Chapada isa large(134 X 106metrictons),low-grade (0.44%Cu...geologicallycomplexPan-Africanmobile belt in centralGoiasstate,Brazil. Mineralizationis hostedlargelyby subhorizontal...smallsizeand Thisreport concernsthe Chapadadepositin Brazil, low grade,but some,suchasthe Mcintyre minein whichwe...1972). Chapada,whichis in west-cencatedcomparison oftheseolderporphyrydeposits to tral Goias,Brazil (S 14o15' |  | | Journal (article/letter/editorial) | | UST O195 THE GEOLOGY OF CENTRAL MINAS GERAES, BRAZIL E. C. HARDER Washington, D.C. AND R. T. CHAMBERLIN...classified as follows. SH. K. Scott, "The Iron Ores of Brazil," Jour. Iron and Steel Institute, LXI, (1902),... 248; O. A. Derby, "The Iron Ores of Brazil," Iron Ore Resources of the World, p. 313, Stockholm, 191o;... Leith and E. C. Harder, "The Hematite Ores of Brazil and a Comparison with the Hematite Ores of Lake...Ores of Brazil," Econ. Geol., IX, (1914) ioi-iI; E. C. Harder, "The Iron Industry in Brazil," Bull. Am |  | | Journal (article/letter/editorial) | | observations, in great part proposed paper made in Brazil bearing upon thus far been have unpublished, that...their present place in the gravels; others, as staurolite, disthene, etc., can with equal certainty be...of the Kimberley district. In only one Brazilian mine, so far as known, are basic eruptives a characteristic...than genetic. This is the Agua Suja (dirty water) mine in the Bagagem district of western Minas Geraes...Campos, Hussak, and Calogeras,' though from the gold mine of Antonio Pereira, near Ouro Preto, which is the |  | Kuchenbecker, Matheus, Pedrosa-Soares, Antônio Carlos, Babinski, Marly, Fanning, Mark (2015) Detrital zircon age patterns and provenance assessment for pre-glacial to post-glacial successions of the Neoproterozoic Macaúbas Group, Araçuaí orogen, Brazil. Precambrian Research, 266. 12-26 doi:10.1016/j.precamres.2015.04.016 | Journal (article/letter/editorial) | | Neoproterozoic Macaúbas Group, Araçuaı́ orogen, Brazil Author: Matheus Kuchenbecker Antônio Carlos Pedrosa-Soares...Neoproterozoic Macaúbas Group, Araçuaí orogen, Brazil, Precambrian Research (2015), http://dx.doi.org/10...Neoproterozoic Macaúbas Group, Araçuaí orogen, Brazil Matheus Kuchenbecker¹,²,*, Antônio Carlos Pedrosa-Soares¹...Antônio Carlos 6627, CEP 31270-901, Belo Horizonte, MG, Brazil. Telephone/Fax: +55 31 3409-4441, E-mails:...Mucuri, BR-367, Km 583, Alto da Jacuba, CEP 39100-000, Diamantina, MG, Brazil. M ³Centro de Pesquisas |  | | Journal (article/letter/editorial) | | formation of W-bearing rutile in the Kori Kollo mine, 421 Bond length, dependence of structure of olivines...H.J., 647 BRAZIL, a kyanite-staurolite ortho-amphibolite from Chapada, Goihs State, Brazil, 501 Brewsterite...451 Chabazite, 533 CHAKHMOURADtAN,A.R., 341,769 Chapada, Goids State, India, mineralogy and characterization... crystal structure of szenicsite from Jardinera mine, 461; Punta Nihue, zussmanite in ferruginous metasediments...with, and dehydration of, 657 Clinohumite from Chapada, Goids State, India, mineralogy and characterization |  | Caxito, Fabrício A., Uhlein, Alexandre, Dantas, Elton Luiz, Stevenson, Ross, Salgado, Silas Santos, Dussin, Ivo A., Sial, Alcides da Nóbrega (2016) A complete Wilson Cycle recorded within the Riacho do Pontal Orogen, NE Brazil: Implications for the Neoproterozoic evolution of the Borborema Province at the heart of West Gondwana. Precambrian Research, 282. 97-120 doi:10.1016/j.precamres.2016.07.001 | Journal (article/letter/editorial) | | recorded within the Riacho do Pontal Orogen, NE Brazil: Implications for the Neoproterozoic evolution...recorded within the Riacho do Pontal Orogen, NE Brazil: Implications for the Neoproterozoic evolution...recorded within the Riacho do Pontal Orogen, NE Brazil: Implications for the Neoproterozoic evolution...Antônio Carlos 6627, CEP 31270-901, Belo Horizonte, MG, Brazil 2 - Instituto de Geociências, Universidade...Universitário, Asa Norte, CEP 70910-900, Brasília, DF, Brazil 3 - GEOTOP, Université du Québec à Montréal, P |  | | Journal (article/letter/editorial) | | Contendas-Mirante Supracrustal Belt, São Francisco Craton, Brazil, as a Paleoproterozoic foreland basin Stefano Zincone...ContendasMirante Supracrustal Belt, São Francisco Craton, Brazil, as a Paleoproterozoic foreland basin, Precambrian...Contendas-Mirante Supracrustal Belt, São Francisco Craton, Brazil, as a Paleoproterozoic foreland basin Stefano Zincone1...of Campinas, P.O. Box 6152, 13083-970 Campinas, Brazil. 2 Department of Geology, School of Mines, Federal...do Cruzeiro, 35400-000 Ouro Preto, Minas Gerais, Brazil. The low-grade Contendas-Mirante meta-volcano-sedimentary |  | | Journal (article/letter/editorial) | | Relations in Iron Ores from the Iron Quadrangle, Brazil: The Correlation of Oxygen Isotope Variations with...hematite-rich ore bodies in the Iron Quadrangle, Brazil. The area studied can be divided into two different...quartz iron formations - known as itabirites in Brazil - appears to have been a dominant process in the...those found in the Iron Quadrangle, Minas Gerais, Brazil. While these ores comprise only a few per cent...source of nearly all the iron ore mined today in Brazil. The extent of enrichment is shown by the differences |  | Matteini, M., Junges, S.L., Dantas, E.L., Pimentel, M.M., Bühn, B. (2010) In situ zircon U–Pb and Lu–Hf isotope systematic on magmatic rocks: Insights on the crustal evolution of the Neoproterozoic Goiás Magmatic Arc, Brasília belt, Central Brazil. Gondwana Research, 17 (1) 1-12 doi:10.1016/j.gr.2009.05.008 | Journal (article/letter/editorial) | | evolution of the Neoproterozoic Goiás Magmatic Arc, Brasília belt, Central Brazil M. Matteini a,⁎, S.L. Junges...Universidade Federal de Ouro Preto, 35400, Ouro Preto, MG, Brazil Geochronology Laboratory, Instituto de Geociências...Universidade de Brasília, 70910 900, Brasília, DF, Brazil a r t i c l e i n f o Article history: Received...May 2009 Available online 18 May 2009 Keywords: Goiás Magmatic Arc LA-(MC) ICP-MS Hf isotopes Neoproterozoic...Rosa arc constitutes the northern portion of the Goiás Magmatic Arc, an important tectonic component of |  | | Journal (article/letter/editorial) | | DEPOSITS MINAS No. 7 1928 OF THE DIA- GERAES. BRAZIL. S. THOMPSON. CONTENTS. INTRODUCTION...........S. THOMPSON. ducers.This•pplies especially to Brazil. Here,withtheimpetusgivendiamondmining in SouthA'frica...OF MINAS GERAES, BRAZIL. 707 The oldestand most important diamondfield of Brazil, thus far discovered...Curralinho w.ith the Estrada de Ferro Central do Brazil. The total distance by rail from Rio de Janeirois...to Fro. 3. The great open cut at Sgo Jogo da Chapada,and the uplands, looking north. heightsof zoo |  | | Journal (issue) | | geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production... Svisero, James E. Shigley, and Robert Weldon Brazil, which commanded global production in the 1700s...Gerais and Mato Grosso, are presented. W hile Brazil is widely known for the production of colored gemstones...deposits. According to Kimberley Process statistics, Brazil produced 31,825 carats in 2015, although this figure...Despite its low output relative to other sources, Brazil has produced a significant number of large rough |  | | Journal (article/letter/editorial) | | of Pan-African/Brasiliano rocks, Chapada copper deposit, Goifis, Brazil By STEPHEN V. RICHARDSON,Ann Arbor...table Zusammenfassung Das Tr~igergestein der Chapada Kupferlagerst~itte in Goifis ist in metamorpher...dieser Isochronen ergibt fiir die Schiefer bei Chapada ein AusgangsMaterial im Bereich des oberen Mantels...unterkambrische Alter des Tr~igergesteins bei Chapada steht im Widerspruch zu dem bisher angenommenen...activity may have been more extensive in central Brazil than previously thought. R&um~ Les roches qui |  | | Book | | MINES AND MINERALS IN BRAZIL --= ··--· ··- ·-·=- MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC...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...practically untouched, the mineral reserves of Brazil have already been a source of wealth to many and...without the discovery of the precious metals in Brazil the existence of the modern economic man would |  | | Journal (article/letter/editorial) | | the Eastern Alps contains coexisting kyanite, staurolite, garnet and calcic amphibole. Compositional zoning...facies conditions. The formation of kyanite and staurolite was controlled by bulk rock composition, mainly...Elsevier B.V. All rights reserved. Keywords: Staurolite; Kyanite amphibolite; Reaction textures; Austroalpine...varieties of metabasite may have kyanite and staurolite (Gibson, 1979; Grapes, 1981; Spear, 1982) that...presence of mineral assemblages with kyanite, staurolite and hornblende in mafic rocks is usually known |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...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...Landmann. CDD-549 Indexes for systematic catalog: 1. Brazil: Minerals and precious stones: Mineralogy and gemology |  | | Journal (issue) | | lepidolite, from Virgem da Lapa, Minas Gerais, Brazil. (For more on the locality see the article by Cassedanne...Pennsylvania 15026. The twelve color photos show groups of mine lamps and other mining antiques from the extraordinary...March-April, 1985 Recent discoveries of Phenakite in Brazil J. P. Cassedanne Instituto de Geociencias Cidade...Universitaria Ilha do Fundao. 29910 Rio de Janeiro, Brazil INTRODUCTION Phenakite, Be2Si04, occurs in granitic...Sverdlovsk in the Urals, Soviet Union; the Morefield mine, Amelia County, Virginia; and the Anjanabonoina |  | Amaral, Leandro, Caxito, Fabrício de Andrade, Pedrosa-Soares, Antonio Carlos, Queiroga, Gláucia, Babinski, Marly, Trindade, Ricardo, Lana, Cristiano, Chemale, Farid (2020) The Ribeirão da Folha ophiolite-bearing accretionary wedge (Araçuaí orogen, SE Brazil): New data for Cryogenian plagiogranite and metasedimentary rocks. Precambrian Research, 336. 105522 doi:10.1016/j.precamres.2019.105522 | Journal (article/letter/editorial) | | ophiolite-bearing accretionary wedge (Araçuaí orogen, SE Brazil): New data for Cryogenian plagiogranite and metasedimentary...ophiolite-bearing accretionary wedge (Araçuaí orogen, SE Brazil): New data for Cryogenian plagiogranite and metasedimentary...ophiolite-bearing accretionary wedge (Araçuaí orogen, SE 2 Brazil): New data for Cryogenian plagiogranite and metasedimentary...Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil 9 b Instituto de Geociências, Universidade...Paulo, Rua do Lago, 562, 05580-080, São Paulo, SP, Brazil 10 c Departamento de Geologia, Escola de Minas |
|
