 | Cabral, Alexandre Raphael, Tupinambá, Miguel, Zeh, Armin, Lehmann, Bernd, Wiedenbeck, Michael, Brauns, Michael, Kwitko-Ribeiro, Rogerio (2017) Platiniferous gold–tourmaline aggregates in the gold–palladium belt of Minas Gerais, Brazil: implications for regional boron metasomatism. Mineralogy and Petrology, 111 (6) 807-819 doi:10.1007/s00710-017-0496-0 | Journal (article/letter/editorial) | | aggregates in the gold–palladium belt of Minas Gerais, Brazil: implications for regional boron metasomatism...The platiniferous gold–palladium belt of Minas Gerais, Brazil, forms an approximately 240-km-long, roughly...Xavier 524 s. A4016, Rio Janeiro-RJ 20550-050, Brazil 4 Deutsches GeoForschungsZentrum GFZ, Telegrafenberg...Rodovia BR 381, km 450, Santa Luzia-MG 33040-900, Brazil tourmaline aggregates seem to be the ultimate...Metasomatism . PdPt . Gold–palladium belt . Minas Gerais . Brazil Introduction Auriferous lode deposits and |  | Cabral, Alexandre Raphael, Wiedenbeck, Michael, Koglin, Nikola, Lehmann, Bernd, de Abreu, Francisco R. (2012) Boron-isotopic constraints on the petrogenesis of hematitic phyllite in the southern Serra do Espinhaço, Minas Gerais, Brazil. Lithos, 140. 224-233 doi:10.1016/j.lithos.2012.01.011 | Journal (article/letter/editorial) | | phyllite in the southern Serra do Espinhaço, Minas Gerais, Brazil Alexandre Raphael Cabral a,⁎, Michael Wiedenbeck...Praça Ramos de Azevedo 206, 01037-010 São Paulo-SP, Brazil b c a r t i c l e i n f o Article history: Received...SIMS Hematitic phylite Southern Serra do Espinhaço Brazil a b s t r a c t Metasiliciclastic rocks predominate...Supergroup, in the southern Serra do Espinhaço, Minas Gerais, Brazil. The lower units also comprise rocks with...hematítico, in the southern Serra do Espinhaço of Minas Gerais, Brazil, has been used as a palaeoclimatic indicator |  | | Journal (article/letter/editorial) | | PRECAMBRIAN IN THE SOUTHERN SERRA DO ESPINHA~O, MINAS GERAIS, BRAZIL A. HOPPE Geologisch-Paliiontologisches...Precambrian in the southern Serra do Espinha~o, Minas Gerais, Brazil. PrecambrianRes, 13: 275--296. Middle Precambrian...tectonics and metamorphism. An Archaean basement (Pre-Minas Supergroup) consists of an older granitic unit and...starts north of the Quadril~tero Ferrffero of Minas Gerais and extends N--S for 1200 km as far as Bahia...Pflug and Renger, 1973): (c) post-Minas, (b) Minas, (a) pre-Minas. Following the recommendations of the |  | 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 |  | | Book | | 1982 Jules Roger Sauer ” Foreword For years Brazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits in Brazil is almost infinite. In addition to the mineral...assemblage one might expect from pegmatite dikes, Brazil also produces a very significant output of diamonds...written in English, and beautifully illustrated. “Brazil, Paradise of Gemstones’, by Jules Roger Sauer,...Century. The book is a showcase ofthe best from Brazil and it makes a handsome evocation of what is beautiful |  | | Journal (article/letter/editorial) | | FIELD AT DIAMANTINA By Prof. Dr. Almeida Rolff Caixa Postal 4 1 , Sao Joao del Rei, Minas Gerais, Brazil...Brazil Diamonds were known in Brazil since 1720, but the official discovery Hate is 1726. At this time the...King of Portugal as that European country ruled Brazil from discovery to 1822, the independence year.... The diamond discoveries were first made at Diamantina region, a far-off land located in an old pre-cambrian...pre-cambrian country of the so called Minas Series formations. A mountainous region with plenty of wonderful |  | 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...(V. Anjos Cruz). 2 Universidade Federal de Minas Gerais (UFMG), Instituto de Geociências-Centro de Pesquisa...Campus Pampulha, 31270-901, Belo Horizonte, Minas Gerais, Brasil, pedrosasoares@gmail.com (A.C. Pedrosa |  | Cabral, A. R., Lehmann, B., Tupinamba, M., Schlosser, S., Kwitko-Ribeiro, R., de Abreu, F. R. (2009) THE PLATINIFEROUS Au-Pd BELT OF MINAS GERAIS, BRAZIL, AND GENESIS OF ITS BOTRYOIDAL Pt-Pd AGGREGATES. Economic Geology, 104 (8) 1265-1276 doi:10.2113/gsecongeo.104.8.1265 | Journal (article/letter/editorial) | | COMMUNICATIONS THE PLATINIFEROUS Au-Pd BELT OF MINAS GERAIS, BRAZIL, AND GENESIS OF ITS BOTRYOIDAL Pt-Pd AGGREGATES...Xavier 524 s. A4016, 20550-050 Rio Janeiro-RJ, Brazil 4 Curt-Engelhorn-Zentrum 5 Centro Archäometrie...Luzia-MG, Brazil 6 Votorantim Metais, Praça Ramos de Azevedo 206, 01037-010 São Paulo-SP, Brazil Abstract...240-km-long, north-trending Au-Pd-Pt belt in Minas Gerais, Brazil, which hosts hydrothermal Pd-Pt−bearing...gold mineralization reaching from Ouro Preto to Diamantina. The very high oxidation state required for efficient |  | | Journal (article/letter/editorial) | | rift model for the sedimentary diamond deposits of Brazil Received: 13 January 1997 / Accepted: 22 July...kimberlites have been discovered in the past 20 years in Brazil, the Brazilian diamond production has been derived...of the recent alluvial deposits of Brazil. In this sense, Brazil shows a sharp contrast with other large-scale...directly or because they feed the alluvials. But Brazil diers from these countries regarding the age of...Proterozoic, in Brazil they spread from the Lower/Middle Proterozoic to the Cretaceous. Brazil is thus a very |  | Cabral, A. R., Zeh, A., Galbiatti, H. F., Lehmann, B. (2015) LATE CAMBRIAN Au-Pd MINERALIZATION AND Fe ENRICHMENT IN THE ITABIRA DISTRICT, MINAS GERAIS, BRAZIL, AT 496 Ma: CONSTRAINTS FROM U-Pb MONAZITE DATING OF A JACUTINGA LODE. Economic Geology, 110 (1) 263-272 doi:10.2113/econgeo.110.1.263 | Journal (article/letter/editorial) | | AND Fe ENRICHMENT IN THE ITABIRA DISTRICT, MINAS GERAIS, BRAZIL, AT 496 MA: CONSTRAINTS FROM U-Pb MONAZITE...Ferrosos, Vale, Miguelão, 34000-000 Nova Lima-MG, Brazil Abstract Bonanza-style mineralization of palladiferous...century in the province that became known as Minas Gerais. The timing of this itabirite-hosted vein mineralization...events recorded in the Quadrilátero Ferrífero of Minas Gerais, the ~2.0 Ga Transamazonian event and the ~0...also affected surrounding Neoarchean rocks of the Minas Supergroup, as well as younger rocks of the southern |  | | Report (chapter) | | built heritage of the interior of Brazil: the use of stone in Minas Gerais A. G. COSTA Department of Geology...University of Minas Gerais, Av. Antônio Carlos 6627, 31270 – 901, Belo Horizonte (Minas Gerais), Brazil (e-mail:...costa@uol.com.br) Abstract: The cultural heritage of Brazil built with natural stone is expressive and shows...interior, especially in the current State of Minas Gerais, a large number of historic buildings can be...steatites and schists in historic buildings in Brazil, which is part of a research project in progress |  | | 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...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...northern São Francisco craton known as the Chapada Diamantina. The cliffs and mesas expose the Mesoproterozoic |  | | Journal (issue) | | geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production...deposits. 68 pg. 49 Causes of Iridescence in Natural Quartz Xiayang Lin and Peter J. Heaney Describes the occurrence...iridescence, and the role of differential etching, in quartz crystals from India’s Jalgaon District. NOTES...sapphire • Turquoise Starship Enterprise • Rutilated quartz mining community • Jewelry Industry Summit • Color-change...liddicoatite tourmaline, Japanese jadeite, iris quartz, synthetic zincite, and a short but important contribution |  | | Journal (article/letter/editorial) | | been shown to be due to irregular interlocking quartz grains surrounded by regular intergranular spaces...the texture appears to be chemical dissolution of quartz at the grain boundary. ß 2010 The Geologists’ Association.... . . . . . . . . . . . . . . . . . . . . 2.1. Brazil . . . . . . . . . . . . . . . . . . . . . . . ...Joäo d’el Rei, Säo Tomé das letras 2.1.2. Diamantina/Grao Region . . . . . . . . . . . . . . . . ...M.H. Klaproth who devoted a chapter to ‘elastic quartz’ in his book ’Analytical Essays towards promoting |  | Guadagnin, Felipe, Chemale, Farid, Magalhães, Antônio J.C., Santana, Ana, Dussin, Ivo, Takehara, Lucy (2015) Age constraints on crystal-tuff from the Espinhaço Supergroup — Insight into the Paleoproterozoic to Mesoproterozoic intracratonic basin cycles of the Congo–São Francisco Craton. Gondwana Research, 27 (1) 363-376 doi:10.1016/j.gr.2013.10.009 | Journal (article/letter/editorial) | | Bento Gonçalves 9500, 91501-970 Porto Alegre, RS, Brazil Departamento de Geologia, Universidade Federal...Espírito Santo, PO Box 16, 29500-000 Alegre, ES, Brazil c Instituto de Geociências, Universidade de Brasília...70904-970 Brasília, DF, Brazil d Petrobras E&P-RJ, Av. Chile 45, Rio de Janeiro, RJ, Brazil e Centro de Pesquisas... Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil f Serviço Geológico do Brasil...Brasil — CPRM, SGAN 603, 70830-030 Brasília, DF, Brazil b a r t i c l e i n f o Article history: Received |  | | Journal (article/letter/editorial) | | Proterozoic SedimentHosted Pb-Zn (Ag) Deposits of Brazil Aroldo Misi’, Sundaram S. Iyer2, Colombo C. G....Universidade Federal da Balzia, Salvador; BA 40210-340, Brazil, E-Mail: rnisi@ujlm.br Department of Physics arid...Universiclade de SZo Paulo, SZo Pado, Sdo Paulo, 05422-970, Brazil Department of Geological Sciences, The University...UtiiverrridadeFederal da Baftia, Salvador; Bahia, 40210-340, Brazil Curso de Po’s-Graduagdo enz Geoquiniica, Itistituto...Federal da Bahia, Salvador; Balzia, 40210-340, Brazil (Mciizuscriptrsceiwrl Deceinlzer 12, 1997; accepted |  | | Journal (article/letter/editorial) | | ORIGIN OF THE QUARTZ DEPOSIT AT FAZENDA PACU, BRAZIL Paur, F. Kpnnl RNoAr.senro I. EnrcusnN2 AssrRA.ct...ct The quartz of Fazenda Pac( occurs in veins which are formed along a fracture zone at the contact between...granite and altered the binding material of the quartz of the veins. Kaolinite has resulted. Erosion has...have occurred in Minas Geraes. INrnooucrroN Rock crystal has been mined in Brazil for many years. Early...border of the states of Minas Geraes and Goyaz. More recently the use of quartz in radio and telephone |  | | Journal (article/letter/editorial) | | northern Serra do Espinhac o (State of Bahia, Brazil) G. Morteani1 and D. Ackermand2 1 Geoexpert International...(Northern Serra do Espinhac o, State of Bahia, NE Brazil) about 10 km west of the town of Boquira. Sky blue...xenotime, monazite and zircon. Oxygen thermometry on quartz and hematite and the stability of kyanite, augelite...world-wide e.g. from the present study area in Bahia (Brazil) by Cassedanne and Franco (1966), Cassedanne et...(1989) and Visser et al. (1997), from Diamantina, Minas Gerais (Brazil) by Horn et al. (1996) and Morteani |  | Gonçalves, Guilherme O., Lana, Cristiano, Buick, Ian S., Alkmim, Fernando F., Scholz, Ricardo, Queiroga, Glaucia (2019) Twenty million years of post-orogenic fluid production and hydrothermal mineralization across the external Araçuaí orogen and adjacent São Francisco craton, SE Brazil. Lithos, 342. 557-572 doi:10.1016/j.lithos.2019.04.022 | Journal (article/letter/editorial) | | Araçuaí orogen and adjacent São Francisco craton, SE Brazil Guilherme O. Gonçalves, Cristiano Lana, Ian S...Araçuaí orogen and adjacent São Francisco craton, SE Brazil, LITHOS, https://doi.org/ 10.1016/j.lithos.2019...Araçuaí orogen and adjacent São Francisco craton, SE Brazil Guilherme O. Gonçalvesa,* goncalves.go@icloud.com... Universidade Federal de Ouro Preto, Escola de Minas, Departamento de Geologia, Campus Morro do Cruzeiro...the adjacent São Francisco craton. Titanium-in-quartz thermometry suggests that most hydrothermal systems |  | | 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 |  | Cruz, Vanderlúcia Anjos, Cruz, Simone C.P., Lobato, Lydia Maria, Javier Rios, Francisco, Santos, Josafá S., Lima, Geraldo Marcelo. P. (2018) Structural control and hydrothermal evolution model of unusual, high-grade metasandstone-hosted iron deposits, mesoproterozoic eastern chapada diamantina, Brazil. Ore Geology Reviews, 101. 221-272 doi:10.1016/j.oregeorev.2018.06.003 | Journal (article/letter/editorial) | | deposits, mesoproterozoic eastern chapada diamantina, brazil Vanderlúcia Anjos Cruz, Simone P. Cruz, Lydia...deposits, mesoproterozoic eastern chapada diamantina, brazil, Ore Geology Reviews (2018), doi: https://doi...DEPOSITS, MESOPROTEROZOIC EASTERN CHAPADA DIAMANTINA, BRAZIL Vanderlúcia Anjos Cruz, Simone P. Cruza,...Salvador, BA, Brasil b Universidade Federal de Minas Gerais, Centro de Pesquisas Prof. Manoel Teixeira da... Instituto de Geociências, Belo Horizonte, MG, Brazil c Fluid Inclusion and Metallogeny (ECL), Centro |  | Cabral, A. R., Tupinambá, M., Lehmann, B. (2013) Spessartine in compact-hematite rock, southern Serra do Espinhaço, Minas Gerais, Brazil, and genesis of compact hematite. Mineralogical Magazine, 77 (8) 3197-3215 doi:10.1180/minmag.2013.077.8.12 | Journal (article/letter/editorial) | | compact-hematite rock, southern Serra do Espinhaço, Minas Gerais, Brazil, and genesis of compact hematite A. R. CABRAL1...Xavier 524 s. A4016, 20550-050 Rio Janeiro-RJ, Brazil [Received 29 March 2013; Accepted 5 November 2013;...compact-hematite rock, spessartine, REE, Eu anomaly, Minas Gerais, Brazil. Introduction GARNET occurs in metamorphosed...hematite from the southern Serra do Espinhaço, Minas Gerais, Brazil. We provide microanalytical data, obtained...1980). The Itapanhoacanga Formation encompasses quartz-bearing phyllite and schist with intervening itabirite |  | Ribeiro, A., Teixeira, W., Dussin, I.A., Ávila, C.A., Nascimento, D. (2013) U–Pb LA-ICP-MS detrital zircon ages of the São João del Rei and Carandaí basins: New evidence of intermittent Proterozoic rifting in the São Francisco paleocontinent. Gondwana Research, 24 (2) 713-726 doi:10.1016/j.gr.2012.12.016 | Journal (article/letter/editorial) | | Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil Instituto de Geociências, departamento de Mineralogia...(05508-080), Universidade de São Paulo, São Paulo, SP, Brazil c Research Fellow of the São Paulo State Research...Geociências, Universidade de São Paulo, São Paulo, SP, Brazil d Museu Nacional, departamento de Geologia e Paleontologia...Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil b a r t i c l e i n f o Article history: Received...identified near São João del Rei (southern Minas Gerais State, Brazil), based on the sedimentary–tectonic history |  | | Journal (article/letter/editorial) | | Arizona 85011 jeffscovil@earthlink.net Figure 1. Quartz (4.8 cm) from Middleville, Herkimer County, New...faces (fig. 5), but skeletal quartz (also called fenster or window quartz) (fig. 6) is an even better...Windler specimen. Figure 6. Skeletal crystal of quartz (9.7 cm) from Treasure Mountain North, Manheim...20 December 2017 each other by a void. Skeletal quartz from North Carolina and Porretta Terme, Italy,...symmetrically different faces. Figure 9. Rutilated quartz crystal (11.3 cm tall) with a large rounded triangular |  | | Report (chapter) | | Neoproterozoic Macaúbas Group, Araçuaı́ orogen, SE Brazil A. C. PEDROSA-SOARES1*, MARLY BABINSKI2, CARLOS...FRANCISCO VILELA1 1 Universidade Federal de Minas Gerais, Instituto de Geociências-CPMTC, Campus Pampulha...Pampulha, 31270-901 Belo Horizonte, MG, Brazil 2 Universidade de São Paulo, Instituto de Geociências...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 |
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São João da Chapada, Diamantina, Minas Gerais, Brazil