 | | Journal (article/letter/editorial) | | minerals Case Report Heavy Mineral Sands in Brazil: Deposits, Characteristics, and Extraction Potential...Cidade Universitária, Rio de Janeiro 21941-908, Brazil; carolinec.gon@gmail.com * Correspondence: pbraga@cetem...March 2019; Published: 13 March 2019 Abstract: In Brazil, heavy mineral sand deposits are still barely exploited...coastal region were chosen, in Piaui state and in Bahia Provinces. In all samples, the heavy minerals of...of interest (ilmenite, monazite, rutile, and zircon) were identified by scanning electron microscopy (SEM) |  | | Journal (article/letter/editorial) | | Pleistoaene sand in Florida and in a recent one in Brazil. Although they are nonmetallic, they contain nickel...species, including ilmenite (FeTiO,), rutile (TiO,), zircon (ZrSiO,), monazite [(Ce, La, Y, Th)PO,], staurolite...of the tropical and subtropical world, including Brazil, Florida, India and Australia. These concentrates...sea cliff. Fig. 1. Spherules from Cumuruxatiba, Bahia, Brazil. Av. dia., 200 p. 1872 Blwk, magnetio...an ilmenite-monazite sand from the coast of Bahia, Brazil, contained only about 500 mg of grains magnetic |  | | Journal (article/letter/editorial) | | com/loi/tigr20 Geology and Mineral Resources of Brazil: A Review a a Inacio De Medeiros Delgado , Augusto...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil b US. Geological Survey, Denver, CO, 80225...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...de Pesquisa de Recursos Minerals, Scdvador, Bahia, Brazil AND CHARLES H. THORMAN US. Geological Survey |  | | Journal (article/letter/editorial) | | T-Zr placers in five major placer-forming regions (Brazil, India/Sri Lanka, southeastern Africa, southeastern...world's rutile, 25% of the ilmenite, 100% of the zircon, and at least 50% of the monazite and xenotime...To this end, five major placer-forming regions (Brazil, India/Sri Lanka, southeastern Africa, southeastern...distribution of major coastal deposits. Titanium mineral-zircon-monazite placers dominate the coasts of eastern...southeastern and western Africa, India and Sri Lanka, Brazil, and the southeastern United States. Data from |  | | Journal (article/letter/editorial) | | granitoids, monazite, along with fluorapatite and zircon, tends to be among the first minerals to crystallise...experiments involving a similar natural monazite from Brazil and a series of fluids including H2O as well as...a heavy mineral sands deposit at Cumuruxatiba, Bahia State, Brazil. It consists of moderately abraded...ThO2 ? SiO2 Fig. 2 High-contrast BSE images of Brazil monazite grain fragments after light crushing.... Unaltered Mnz 0.39 MX80 28.89 Brazil Mnz* SD P2O5 Brazil Mnz Fluid Description Experiment |  | Grand'Homme, A., Janots, E., Seydoux-Guillaume, A.M., Guillaume, D., Magnin, V., Hövelmann, J., Höschen, C., Boiron, M.C. (2018) Mass transport and fractionation during monazite alteration by anisotropic replacement. Chemical Geology, 484. 51-68 doi:10.1016/j.chemgeo.2017.10.008 | Journal (article/letter/editorial) | | , Hidaka, H., 2001. Alteration of monazite and zircon and lead migration as geochemical tracers of fluid...Weber, W.J., Ewing, R.C., 1998. Radiation damage in zircon and monazite. Geochim. Cosmochim. Acta 62, 2509–2520...A.R.C. (2016). Nanogeochronology of discordant zircon measured by AN atom probe microscopy of Pb-enriched...Deformation induced trace element redistribution in zircon revealed using atom probe tomography. Nat. Commun...imaging sharpens geochronological interpretation of zircon and monazite. AGU books; in press. Seydoux-Guillaume |  | | Report (issue) | | PLURINATIONAL STATE OF BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI DARUSSALAM BULGARIA BURKINA FASO BURUNDI....................................... 38 6.4.3. Brazil..................................................however lower in thorium content, are xenotime and zircon. A tentative classification of thorium minerals...priorite cerianite yttrocrasite pyrochlore thorite zircon huttonite thorogummite steacyite ekanite umbozerite...Cu, Fe, Zr, Ti, U and others. Examples: Araxa in Brazil, Bayan Obo in China, Fen in Norway, Sokli in Finland |  | | Report (chapter) | | do Rio de Janeiro (DGRG/UERJ), Rio de Janeiro, Brazil 2 Programa de Posgraduação, Faculdade de Geologia...Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil *Corresponding author (e-mail: mauro.geraldes@gmail...to the Cabo Granite (104 Ma) are observed in NE Brazil. In West Africa, sparse Aptian–Albian ages are...break-up is presented below. In the SE region of Brazil, there were two major magmatic events in the continental...examples of the abovementioned magmatism in eastern Brazil, West Africa and adjacent oceanic areas. The Saint |  | | Book (volume) | | Geocronolégicas da Universidade de Sao Paulo, Brazil K. Kawashita Instituto de Geociéncias e Astronomia...Pesquisas Geocronolégicas da Universidade de Sao Paulo, Brazil H. E. Asmus Petrobras Exploration Division John...Nacional de Pesquisas A.E. M. Nairn Rio de Janeiro, Brazil Department of Earth Sciences University of Leeds...Universidade Federal do Parana Curitiba, Parana, Brazil U. G. Cordani Instituto de Geociéncias e Astronomia...Pesquisas Geocronolégicas da Universidade de Sao Paulo, Brazil Ian W. D. Dalziel Lamont-Doherty Geological Columbia |  | | Book | | other margins of the world, including Argentina, Brazil, Japan, Canada, South Africa, Antarctica, Norway...S. A., Caixa Postal 809 XZ-00, Rio de Janeiro, Brazil M. J. Carr, Dartmouth College, Department of Earth...Brasileiro S.A., Caixa Postal 809 XZ-00, Rio de Janeiro, Brazil Lucien Montadert, Institut Francais du Petrole... S.A., Caixa Postal 809 XZ-oo, Rio de Janeiro, Brazil Thomas Pyle, University of South Florida, 830 1st... Recent Sediments and Environments of Southern Brazil, Uruguay, Buenos Aires, and Rio Negro Continental | | | Book | | other margins of the world, including Argentina, Brazil, Japan, Canada, South Africa, Antarctica, Norway...S. A., Caixa Postal 809 XZ-00, Rio de Janeiro, Brazil M. J. Carr, Dartmouth College, Department of Earth...Brasileiro S.A., Caixa Postal 809 XZ-00, Rio de Janeiro, Brazil Lucien Montadert, Institut Francais du Petrole... S.A., Caixa Postal 809 XZ-00, Rio de Janeiro, Brazil Thomas Pyle, University of South Florida, 830 1st... Recent Sediments and Environments of Southern Brazil, Uruguay, Buenos Aires, and Rio Negro Con¬ tinental |  | | Book | | Repú blica do Chile 330, Centro, Rio de Janeiro, Brazil J. Craig ENI E&P, Via Emilia 1, San Donato Milanese...República do Chile 330, Centro, Rio de Janeiro, Brazil G. Manatschal IPGS-EOST, Université de Strasbourg...Janeiro, Brazil; Federal University of Ouro Preto, Geology Department, Ouro Preto/MG, Brazil A. Mascle...Repú blica do Chile 330, Centro, Rio de Janeiro, Brazil L. Naudts Renard Centre of Marine Geology (RCMG)...Petrobras/CENPES/PDGEO, Ilha do Fundão, Rio de Janeiro, Brazil xxxvi Contributors for Volumes 1A, 1B and 1C |
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