 | 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) | | through detrital zircon geochronology: The case of the Espinhaço Supergroup, Minas Gerais, Brazil Farid Chemale...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...2011 Handling Editor: E. Tohver Keywords: U–Pb zircon geochronology Espinhaço Basin Stenian São Francisco |  | 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 |  | 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 |  | 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) | | southeastern Brazil) Marcelo A. Martins-Neto Departamento de Geologia, Escola de Minas, Uni6ersidade...Morro do Cruzeiro s/n, 35400 -000 Ouro Preto, MG, Brazil Received 2 June 1999; accepted 20 March 2000 Abstract...succession (Espinhaço Megasequence, southeastern Brazil) indicates deposition in a rift-sag basin. Four...Elsevier Science B.V. All rights reserved. Keywords: Brazil; Proterozoic; Tectonostratigraphic units; Basin...parts of the Serra do Espinhaço, southeastern Brazil (Fig. 1). Because of inversion during the neoproterozoic |  | Sano, Yuji, Yokochi, Reika, Terada, Kentaro, Chaves, Mario L., Ozima, Minoru (2002) Ion microprobe Pb–Pb dating of carbonado, polycrystalline diamond. Precambrian Research, 113 (1) 155-168 doi:10.1016/s0301-9268(01)00208-x | Journal (article/letter/editorial) | | Uni6ersidade Federal de Minas Gerais, Cidade Uni6ersitaria, Belo Horizonte 31270 -901, Brazil d Department of...conglomerate in diamond-bearing deposit of Minas Gerais in Brazil together with U–Pb ages of zircons also...(2|; MSWD= 0.012). Seventy six spots on seventy zircon grains derived from the same conglomerate show...2692 9 20 Ma and 2931 922 Ma with two concordant zircon outliers of 1726 9 58 Ma and 3599 9 12 Ma. The...conglomerate estimated by other workers. The 3.6 Ga zircon is the oldest record in the South American platform |  | | Report (chapter) | | Geological Survey of Brazil, Av. Ulysses Guimarães, 2862, 41213-000 Salvador, Brazil (e-mail: apedreira@sa...Espinhaço Supergroup in the states of Minas Gerais and Bahia (Brazil). These basins contain volcanic rocks...Sergipano, Rio Preto and Riacho do Pontal belts in Brazil and the West Congo, Kaoko, Damara, Lufilian, Oubanguides...Waele & Mapani 2002; De Waele 2005; Fig. 2). In Brazil these successions have been studied in detail and...The Palaeo–Mesoproterozoic sedimentary basins of Brazil, started as intra-continental rifts that opened |  | | Journal (article/letter/editorial) | | THE DIAMOND-B[SARING MINAS REGION OF NORTHERN GERAES, BRAZIL. LUCIANO J. MORAES AND DJALMA GUIMAR_•ES...Stateof Minas Geraesstretchesfrom the head-watersof the Jequitinhonha River, Southof Diamantina,northwardto...tributaries,includingthe Rio Arassuahy. South of Diamantina, the Parafina River and its tributaries are...main topographical feature of the region between Diamantina and Grao Mogol is Serra do Espinhago,a mountain...situatedthe principal mineral depositsof economicvalue to Brazil, such as iron, man- ganese,gold, and diamonds |  | 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...siliciclastic metasedimentary rocks of the diamantiferous Sopa-Brumadinho Formation (Paternoster, 1980; Hoppe, |  | 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) | | elsevier.com/locate/gr U–Pb LA-ICP-MS detrital zircon ages of the São João del Rei and Carandaí basins:...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 |  | | 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 (article/letter/editorial) | | DISTRICT, LESTER DEPOSITS MINAS No. 7 1928 OF THE DIA- GERAES. BRAZIL. S. THOMPSON. CONTENTS. ...Uplift and Erosion .............................. Diamantina Conglomerate ..................................S. THOMPSON. ducers.This•pplies especially to Brazil. Here,withtheimpetusgivendiamondmining in SouthA'frica...•.•- •7 • e ale FIG. I. Sketchmap of the Diamantina District showinglocationof principal upland deposits...DEPOSITS OF MINAS GERAES, BRAZIL. 707 The oldestand most important diamondfield of Brazil, thus far |  | 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) | | carbonado diamond. Keywords: carbonado, diamond, Brazil, cathodoluminescence, carbon isotopes, nitrogen...textural studies on four samples of carbonado from Brazil using cathodoluminescence. The internal variations...diamond-bearing carbonado mine is located in the Diamantina region within the Espinhaco range, along the...craton within the Aracuiai fold belt in east–central Brazil (Trompette et al. 1992). Four samples of carbonado...coarse-grained sandy matrix of the “Sopa conglomerate” from the Sopa–Brumadinho Formation in the lower |  | 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...(eastern border of the São Francisco craton, SE Brazil). We sampled hydrothermal minerals (monazite, rutile |  | | Journal (issue) | | Cave karst in the quartzite rocks of Diamantina, Minas Gerais, Brazil ..………….……….………………… 16 Dumitru FRUNZESCU...CAVE KARST IN THE QUARTZITE ROCKS OF DIAMANTINA, MINAS GERAIS, BRAZIL Heinrich Adolf HORN1, Essaid BILAL2...RODET5 1 IGC-UFMG, Universidade Federal de Minas Gerais, Belo Horizonte-MG UMR CNRS 5600 EVS-ENSMSE-Géosciences...district of Diamantina - MG and formed in quartzite rocks of the Espinhaço Supergroup, Sopa-Brumadinho...Noncarbonatic karst, Salitre Cave, Espinhaço Range, Diamantina-MG 1. Introduction The study of karsts in non-carbonate |  | Mesquita, Áquila Ferreira, Basilici, Giorgio, Soares, Marcus Vinícius Theodoro, Garcia, Richard Guillermo Vásconez (2021) Morphology, accumulation and preservation of draa systems in a Precambrian erg (Galho do Miguel Formation, SE Brazil). Sedimentary Geology, 412. 105807pp. doi:10.1016/j.sedgeo.2020.105807 | Journal (article/letter/editorial) | | Precambrian erg (Galho do Miguel Formation, SE Brazil) Áquila Ferreira Mesquita, Giorgio Basilici, Marcus...Precambrian erg (Galho do Miguel Formation, SE Brazil), Sedimentary Geology (2020), https://doi.org/10...Precambrian erg (Galho do Miguel Formation, SE Brazil) Áquila Ferreira Mesquita a*, Giorgio Basilici...Geosciences, State University of Campinas, Campinas, SP, Brazil. Centro Regional de Investigaciones Científicas...do Miguel Formation, located in the Minas Gerais State - SE Brazil Journal Pre-proof (Fig. 1). This |  | | Journal (article/letter/editorial) | | (Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized zircon and geodynamic...(Northern Espinhaço, Brazil): LA-ICP-MS age determinations on relict and recrystallized zircon and geodynamic...range at 643±19 Ma. - Metamorphic zircon forms from protolith-zircon in a dissolution- - ip t precipitation...metamorphic overprinting of a psammitic rock 2. Zircon crystals can be replaced completely or can be preserved...preserved ip t completely 3. Local differences in zircon and/or fluid composition decide cr 4. Age of |  | Talla, D., Beran, A., Skoda, R., Losos, Z. (2011) On the presence of OH defects in the zircon-type phosphate mineral xenotime, (Y,REE)PO4. American Mineralogist, 96 (11) 1799-1808 doi:10.2138/am.2011.3757 | Journal (article/letter/editorial) | | 1799–1808, 2011 On the presence of OH defects in the zircon-type phosphate mineral xenotime, (Y,REE)PO4 Dominik...370 wt ppm to 1.7 wt% H2O. Keywords: Xenotime, zircon-type, OH defects, rare earth elements, IR spectroscopy...Mogilevsky 2007). Xenotime is isostructural with zircon, ZrSiO4. A critical review of the phase fields...solid-solution ranges, and phase transitions of zircon- and monazite-type compounds is given by Kolitsch...the incorporation mode of the hydrous phase in zircon by discerning structural OH defects and “secondary |  | | Journal (article/letter/editorial) | | metaconglomerate and modern diamondiferous placers of Brazil and Central Africa. Carbonado is not reliably established...[10]. Carbonado occurred in Sopa metacon glomerates (MinasJerais, Brazil) 1700–1750 Ma after annealing... The Proterozoic Sopa conglomerate contains several multiage populations of zircon fragments in addition...sometimes contain round, droplike (“molten” (!)) zircon inclusions [2], which provide evidence for the |  | | Journal (article/letter/editorial) | | observations, in great part proposed paper made in Brazil bearing upon thus far been have unpublished, that...great importance to them, can in some cases, as of zircon, monazite, xenotime, etc., be referred with tolerable...water) mine in the Bagagem district of western Minas Geraes, which has been excellently studied by Messrs...(Bagagem) or of the other diamantiferous regions of Brazil. Still more peculiar and I891. E. HUSSAK: In the...of the Brazilian diamond fields, that of Diamantina in Minas Geraes, there is an apparent relation, first |  | | Journal (article/letter/editorial) | | next, 10 mile wide rivers pouring down from the Diamantina and Georgina country bear the Queensland flood...biotite. The accessories are iron oxide, apatite, and zircon. 106. Granite.—This specimen consists of quartz...1911, chap. iii. li. R. Walls—Diamond Pipes in Brazil. 447 composition, and some of the specimens here...boron. The Existence of Diamond-bearing "Pipes" in Brazil. By ROBERT R. WALLS, M.A., B.Sc. (PLATE VIII...controversy as to whether or not there exist in Brazil diam'ond-bearing " pipes " such as are found in |  | Basilici, Giorgio, Ferreira Mesquita, Áquila, Vinícius Theodoro Soares, Marcus, Janočko, Juraj, Philip Mountney, Nigel, Colombera, Luca (2021) A Mesoproterozoic hybrid dry-wet aeolian system: Galho do Miguel Formation, SE Brazil. Precambrian Research, 359. 106216pp. doi:10.1016/j.precamres.2021.106216 | Journal (article/letter/editorial) | | dry-wet aeolian system: Galho do Miguel Formation, SE Brazil Giorgio Basilici a, b, *, Áquila Ferreira Mesquita...University of Campinas, 13083-870 Campinas, SP, Brazil Centro Regional de Investigaciones Científicas...succession of the Galho do Miguel Formation, SE Brazil. The aim is to identify and discuss what controlling...University of Campinas, 13083-870 Campinas, SP, Brazil. E-mail address: giorgio@unicamp.br (G. Basilici)...orientation for 1200 km, crossing the states of Minas Gerais and Bahia (Fig. 2A) (Dussin and Dussin, 1995; |  | | Journal (article/letter/editorial) | | successfully separated from its usual associate, zircon, and that when monazite and zenotime occur together... of iron oxide, a mi�ed sample of monazite and zircon was very neatly and quickly separated without reducing...Cavallo Morto (Dead Horse) diamond mine near Diamantina, the extraordinarily abundant monazite grains...monazite grains should be equally worn with those of zircon. On the contrary, however, they have been completely...mineral, to· gether with the associated accessories (zircon, magne tite or ilmenite, or both, and occasionally |  | | 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...principally in the states of Minas Gerais and Mato Grosso, are presented. W hile Brazil is widely known for...Arraial do Tijuco (later named Diamantina) in the state of Minas Gerais (Calógeras, 1904; Leonardos, 1959;...and Bartorelli, 2010). For the next 150 years, Minas Gerais was the world’s major supplier of gem diamonds |
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