Fluids Inclusions
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Caracterização dos fluidos associados à paragênese mineral dos albititos uraníferos e encaixantes gnáissicas da jazida Lagoa da Rabicha, Província uranífera de Lagoa Real, Bahia / CHARACTERIZATION OF FLUIDS ASSOCIATED TO MINERAL PARAGENESIS OF URANIFEROUS ALBITITES AND THEIR GNEISSIC EMBEDDING ROCKS FROM LAGOA DA RABICHA URANIUM DEPOSIT, LAGOA REAL, BAHIA.
O Brasil possui atualmente a sétima maior reserva de urânio do mundo. A Província Uranífera de Lagoa Real (PULR) está localizada na região centro-sul do estado da Bahia. Ao longo de uma estrutura helicoidal, com orientação norte-sul, de aproximadamente 33 km de extensão, estão concentradas mais de 30 anomalias de urânio. A anomalia 03 (AN03), deno
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2010
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2. Aplicações de microcospia eletrônica de varredura (MEV) e sistema de energia dispersiva (EDS) no estudo de gemas exemplos brasileiros
This paper presents results of SEM and EDS study in some Brazilian gemstones. Emerald from Campos Verdes (GO) contains several mineral inclusions as talc, dolomite, chromite, pyrite, magnetite, etc. Sylvite crystals was firstly identified by SEM/EDS. These salt inclusions suggest percolation of K-bearing fluids during emerald crystallization. Emerald from Ca
Publicado em: 2010
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3. Metalogênese do depósito de cobre Cerro dos Martins, RS: revisão e geoquímica isotópica de SR, O e C-
This paper presents the geology, chemical data, Pb-Pb zircon ages, sulfur, carbon, oxygen, strontium isotopes and fluid inclusions of Cerro dos Martins copper deposit. The deposit is hosted by the Neoproterozoic volcano-sedimentary sequence of the Camaquã Basin in the Rio Grande do Sul Shield, southern Brazil. The ores consist of a set of Cu-sulfide NW-tren
Publicado em: 2010
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4. Fluid Inclusions Studies in Hematites and Associated Quartz to Iron Formations from Serra do Sapo, Conceição do Mato Dentro, MG / Estudo de inclusões fluidas em hematitas e em quartzo associado das formações ferríferas da Serra do Sapo, Conceição do Mato Dentro, MG
Fuid inclusions associated with the iron ore from Serra do Sapo Formation, Espinhaço Supergroup, Conceição do Mato Dentro, in Minas Gerais, stak were studied. Three hematite generations, named hematite I, II and III were found in these ores. The Hematite I (earliest), with granoblastic texture shows. Partial or total recrystallization texture, was generat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/08/2009
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5. Estudio mineralógico, microtermométrico y aspectos estructurales de la mineralización de topacio imperial de Antônio Pereira, Distrito de Ouro Preto (Minas Gerais) - Brasil
The occurrences of imperial topaz in the Antonio Pereira mine, Ouro Preto, Minas Gerais, are associated with the metamorphic carbonate rocks of the Minas Supergroup. The crystals have densities varying from 3.46 to 3.58. The parameters of the unitary cells obtained were: 4.658 to 4.663Å (a o), 8.823 to 8.832Å (b o), 8.382 to 8.389Å (c o), and 344.65 to 34
Rem: Revista Escola de Minas. Publicado em: 2009-03
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6. Inclusões fluidas nos minerais associados a mineralização uranífera da jazida do Engenho (anomalia 09), Província Uranífea de Lagoa Real, Bahia / Fluid Inclusions in minerals associated to uranium mineralization in Engenho Deposit (anomaly 09) Lagoa Real Uranium Province Bahia
The Engenho deposit (anomaly 09) is south-eastern from Cachoeira Mine (anomaly 13), in the northern part of the Province. The uranium mineralization is associated to albitites (over 70% of albite/oligoclase). Epidosites with uranium may also occur. The albitite main minerals are pyroxene, garnet, albite/oligoclase feldspar, amphibole and biotite. Pyroxene, g
Publicado em: 2009
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7. Evolução quimica e isotopica dos fluidos associados a mineralização de Fe-Cu-Au do deposito Alvo 118, provincia mineral de Carajas - PA / Chemical and isotopic evolution of the fluids from the Alvo 118 Fe-Cu-Au do deposit, Carajas mineral province (PA)
The Alvo 118 iron oxide-copper-gold (IOCG) deposit (170 Mt @ 1,0 wt% Cu, 0,3 g/t Au), together with the world-class Sossego and Cristalino deposits, lie in the southern sector of the Carajas Mineral Province (CMP) along a steeply-dipping, WNW-ESE-striking, 60 km-long shear zone, close to the contact of the Itacaiunas Supergroup metavolcano-sedimentary sequen
Publicado em: 2009
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8. Genese dos depositos auriferos em metaconglomerados da formação moeda, Quadrilatero Ferrifero, MG : o papel do metamorfismo e associação com a materia carbonosa / Genesis of the metaconglomerate-hosted gold deposits of the moeda formation, Quadrilatero Ferrifero (State of Minas Gerais) : role of the metamorphism and the association with carbonaceous matter
The Quadrilátero Ferrífero has historically been one of the most important gold province in Brazil, with a significant number of productive greenstone-hosted lode gold deposits within the Rio das Velhas Supergroup together with those associated with the metasedimentary sequence of the Minas Supergroup. At the base of the Moeda formation, Minas Supergroup,
Publicado em: 2005
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9. Evolução geologica dos terrenos de alto grau metamorfico da Faixa Ribeira na região de Juiz de Fora, Minas Gerais
The orthogneisses of the Ribeira Belt, in the Juiz de Fora area, were submitted to a sequence of geologic processes during times previous to Ett Brasiliano (tectono-thermal event), that generated this belt. The present study intends to recover and to reconstitute the geological evolution related to these processes. The units are distributed in two main tecto
Publicado em: 1999
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10. Intrusões sub-vulcanicas alcalinas e lamprofiros nas mineralizações auriferas do Greenstone Belt do Rio Itapicuru, Bahia : petrografia, geoquimica e inclusões fluidas
At the Fazenda Maria Preta (FMP) and Mari (MR) gold deposits, in the Rio Itapicuru greenstone belt (RIGB), two host volcanic rocks and a mafic dyke were studied and reclassified. In the Corpo H body (FMP) the host roek is called silicified dacite, but in this worlc, based on the mineralogy and textural ftamework, the roek is reclassified as alkali-feldspar s
Publicado em: 1997
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11. Caracterização tectono-metamorfica do deposito aurifero Ambrosio, Greenstone Belt do Rio Itapicuru - Bahia
The Ambrósio lode gold deposit, located in the northem sector ofthe lower Proterozoic (2.200 to 2.000 Ma) Rio Itapicuru greenstone belt, northeast Brazil, is enclosed within a narrow belt ofhighly deformed supracrustals, tightly squeezed between two syn-tectonic granitic batholiths (pedra Alta and Ambrósio domes). The deposit is hosted at the contact of am
Publicado em: 1996
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12. Transformation of human lymphocytes in vitro by autologous and allogeneic rheumatoid synovial fluids.
To assess the possible participation of cellular immune mechanisms in the pathogenesis of rheumatoid arthritis (RA) in vitro studies of the blastogenicity of rheumatoid and non-rheumatoid synovial fluids for human peripheral blood lymphocytes were conducted. In autologous cultures it was found that 13 of 19 rheumatoid fluids induced significant lymphocyte bl