 | | Journal (article/letter/editorial) | | Washington Franca Rocha 2 Federal University of Bahia; simonecruzufba@gmail.com State University of Feira...34445511 1 2 Abstract: The large iron ore reserves of Brazil are already known, but there are still few studies...prospecting, using two deposits in the state of Bahia, Brazil, as case studies. To validate image processing...Sentinel-2; reflectance spectroscopy. 1. Introduction Brazil holds 13% of the world's iron ore reserves, placing...(BRASIL, 2016). The largest iron ore reserves in Brazil are in the Quadrilátero Ferrífero (Minas Gerais) |  | 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...Salomão Figueiredo Barbosa1 1 Universidade Federal da Bahia (UFBA), Pós-Graduação em Geologia. Rua Barão de...Geremoabo, s/n, Federação, 40170-209, Salvador, Bahia, Brasil; carolcnb@gmail.com (C.N. Bittencourt), |  | | Journal (article/letter/editorial) | | (CNEN), Avenida Santana, 680, Centro, Caetité-Bahia, 46400-000, Brazil Université Pierre et Marie Curie,...was obtained from a research watershed in Caetité (Brazil). This metasomatic albitite [5] is constituted...rock sample is: albite (75%), microcline (10%), quartz (5%), biotite (5%), calcite (3%), and accessory...output fluids were oversaturated with respect to quartz and kaolinite, while they were constantly undersaturated...Since output fluids are saturated with respect to quartz and kaolinite, silica and aluminum concentrations |  | Santos, M.S., Cruz, Simone C.P., Lobato, L.M., Mandetta, P., Burgos, C.M. (2022) Structural and hydrothermal evolution of the shear-zone-related iron-oxide enrichment in metavolcano-sedimentary rocks of the intracontinental araçuaí orogen: The case of the espírito santo iron deposit. Ore Geology Reviews, 140. 103719pp. doi:10.1016/j.oregeorev.2020.103719 | Journal (article/letter/editorial) | | memoriam), C. M. Burgos4 1. Universidade Federal da Bahia (UFBA). Programa de Pós-Graduação em Geologia. Rua...Instituto de Geociências, Ondina, Salvador - Bahia/Brazil. 2. Universidade Federal de Minas Gerais, Centro... Instituto de Geociências, Belo Horizonte, MG, Brazil. 3. Fundo de investimentos Biogold Inc. Rua Paul...n 37, Mangabeiras, Belo Horizonte Minas Gerais/Brazil. 4. Companhia de Pesquisa de Recursos Minerais...Ulysses Guimarães, n 2862 Sussuarana, Salvador - Bahia/Brazil. ABSTRACT The Rio São João metavolcano-sedimentary |  | | 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,...turquoise vein near the village of Casa Nova, in Bahia, later flooded by the waters of the Sobradinho dam |  | 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 Maria...deposits, mesoproterozoic eastern chapada diamantina, brazil, Ore Geology Reviews (2018), doi: https://doi.org/10...DEPOSITS, MESOPROTEROZOIC EASTERN CHAPADA DIAMANTINA, BRAZIL Vanderlúcia Anjos Cruz, Simone P. Cruza, Lydia...Geraldo Marcelo. P. Limaa a Universidade Federal da Bahia, Instituto de Geociências, Salvador, BA, Brasil... Instituto de Geociências, Belo Horizonte, MG, Brazil c Fluid Inclusion and Metallogeny (ECL), Centro |  | | Report (issue) | | BELIZE BENIN BOLIVIA BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI DARUSSALAM BULGARIA BURKINA FASO BURUNDI.................. 151 C. Edwards Converting the Caetité mill process to enhance uranium recovery and expand...gave a presentation on behalf of M. Franklin from Brazil, entitled “Social License and Environmental Protection:... Regulatory processes and compliance — Niger, Brazil; Case studies of social development programs...milling. L.A. Gomiero talked about “Converting the Caetité mill process to enhance uranium recovery and expand |  | Silveira, E.M., Söderlund, U., Oliveira, E.P., Ernst, R.E., Leal, A.B. Menezes (2013) First precise U–Pb baddeleyite ages of 1500Ma mafic dykes from the São Francisco Craton, Brazil, and tectonic implications. Lithos, 174. 144-156 doi:10.1016/j.lithos.2012.06.004 | Journal (article/letter/editorial) | | 1500 Ma mafic dykes from the São Francisco Craton, Brazil, and tectonic implications E.M. Silveira a,⁎, U...Campinas-UNICAMP, P.O. Box 6152, Campinas, 13083‐970, Brazil Department of Earth Sciences, Carleton University...Federal University of Bahia, Rua Barão de Jeremoabo, s/n, Salvador, 40170‐290, Brazil b c a r t i c l e...(SFC) is located in the northeastern portion of Brazil (Fig. 1) and is surrounded by Neoproterozoic mobile...most evolved dyke swarms in the Precambrian of Brazil with several geochemical characteristics similar |  | | 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,...(Figure 4b), spessartine (Figure 4c), almandine, quartz, zircon, apatite, topaz, sillimanite, fluorite...tourmaline (Figure 4d), aquamarine, spessartine, quartz, topaz, zircon and phenakite are mined. Tourmaline...Junior (BC Gemas do Brasil, Governador Valadares, Brazil), and heating to 500°C in air was successful in |  | | 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...significant contributor to the mining industry in Brazil. This book provides a state of knowledge overview |  | | Journal (issue) | | MARKETS Figure 9. Near Nova Era in Minas Gerais, Brazil, the Belmont mine operates using sophisticated...other mines in the area slowed (Weldon, 2006). Brazil witnessed a sustained slump in overall gemstone...in places like the United Arab Emirates, Russia, Brazil, India, and China—locations that would not have...discovered in Paraíba and Rio Grande do Norte states in Brazil in 1989 (Fritsch et al., 1990) and became known...plummeted, mining operations in key centers such as Brazil and Zambia curtailed or ceased production, though |  | | Book | | Staurolite 179 Steatite Pyrope WA Succinite Quartz 180 Sugilite Rhodizite 186 Rhodochrosite Rhodolite...owner's rank. Gems as Trademarks and Tokens Intaglio quartz scarab with the cartouche of the Egyptlan king...that separated materials Quartz crystals from Corinto, Minas Gerais, Brazil. Height: 15 cm. Sorbonne...diamond-bearing gravel in Minas Gerais, Brazil. Photo: tals of such minerals as quartz, fluorite, and calcite considered...and a jeweler might then speak of a ‘root’ as Brazil Length: 9 cm. K. Proctor collection, United States |  | | Conference Proceedings (Volume) | | Kui-Feng Yang, Xiao-Chun Li & Ting-Guang Lan Mesozoic quartz-vein hosted Au (Ag-Pb-Zn-Cu) mineralisation at...BIF-hosted Lamego gold deposit, Quadrilátero Ferrífero, Brazil .................................................orogenic gold deposit, Quadrilátero Ferrífero, Brazil Rosaline C Figueiredo e Silva, Yuri Ribeiro, Lydia...in granites from Lagoa Real uranium province Ba-Brazil ....................................... Lucas...the giant Salobo IOCG deposit, Carajás Province, Brazil .. .......................................... |  | | Report (issue) | | (Australia) Pervomayskoye (Ukraine), Lagoa Real (Brazil), Valhalla (Australia) Pribram , Jachymov (Czech...examples of this deposit type are Lagoa Real in Brazil, Zheltye Vody deposit in Ukraine and Valhalla in...central core of the complex is barren hematite– quartz breccia, flanked to the east and west by zones...not report U from phosphorite as a resource. (8) Quartz-pebble conglomerate deposits constitute about 6%...of Th include Australia, USA, Turkey, India and Brazil, although most countries have not been diligent |  | | Book | | Geosciences Institute University of São Paulo São Paulo Brazil Pedro Oyhantçabal Departamento de Geodinámica Interna...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)...and geochemical data of the Nico Pérez Terrane in Brazil and Uruguay in order to constrain its regional |  | | Book | | migmatizadas; • greenstone belts, como os do Pará, Goiás, Bahia e Minas Gerais, afetados por metamorfismo de baixo...porções do Cráton São Francisco em Minas Gerais e Bahia, e Goiás), e outros menores (Rio Grande do Norte...porções do Cráton São Francisco em Minas Gerais e Bahia, Goiás), e outros menores (Pernambuco, Ceará, Goiás...do Campestre (leste do Rio Grande do Norte) e na Bahia, com pequena extensão para Pernambuco (Fig. 2)....final do Arqueano (2,8-2,6 Ga), chamado Jequié, na Bahia, e Rio das Velhas, em Minas Gerais. A ele se devem |  | | Book | | com/series/10172 Jens Götze Robert Möckel • Editors Quartz: Deposits, Mineralogy and Analytics 123 Editors...and reflect the state of the art in the field of quartz and silica raw materials. The book covers the broad...The chapters are dealing mainly with the mineral quartz, which is one of the most frequent minerals of...with the processing and technical application of quartz and SiO2 material. The 15 chapters of the book...exploration and qualification of potential deposits of quartz raw materials in terms of certain technical applications |  | | Report (issue) | | requirements for uranium mining and milling in Brazil ..........174 K.M. Silva ISL MINING Smith Ranch...in mobile belts. Indeed, previously discovered quartz-pebble uranium placer deposits in South Africa... metamorphic series in North-China platform are mica-quartz schists (3720~3650Ma) and plagioclase amphibolite...of pyrite or in association with pitchblende and quartz. Uraniferous Ti-Fe oxide seems to be an alteration...gray/light gray colored coarse/medium-grained feldspar-quartz sandstone, and minor fine-grained sandstone. Color |  | | Book (edition) | | America ERG Southern South America South East Brazil 1:75M Polar Regions 1:40M 76 1:15M 75 74 INDEX...Aymara RELIGION: large Roman Catholic majority BRAZIL The Sultanate of Brunei is situated on the north-west...CURRENCY: Cruzado (CZ$) ORGANISATIONS: UN, OAS Brazil is not only the largest country in South America...America but also has the fastest growing economy. Brazil is now an industrial power but with development...changing landscape. In agricultural production Brazil is one of the world’s leading exporters with coffee |  | | Book (edition) | | 1:15M 7213 SouthernSouth America 1:5M 74 South East Brazil 1:75m 75 Polar Regions 1:40om 76 Key tosymbolsoncity...changing landscape. In agricultural production Brazil is one of the world’s leading exporters with coffee...sq miles) POPULATION: 159, 100 CAPITAL: Arawa BRAZIL STATUS: Republic AREA: 1,098,575 sq km (424,050...CURRENCY: cruzeiro (BRC) ORGANISATIONS: UN, OAS Brazil is not only the largest country in South America...America but also has the fastest growing | economy. Brazil is now an industrial power 8 STATUS: Sultanate |
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Brejinho das Ametistas, Caetité, Bahia, Brazil