Paleoproterozoic greenstone-granite belts in Northern Brazil and the former Guyana Shield - West African Craton province [PDF]
The mainly meta-volcano-sedimentary Vila Nova Group and associated granites constitute separate belts, which form part of a large paleoproterozoic (mainly rhyacian) province in the Guyana Shield of which northern Brazil forms a part, and the West African
Faraco, Maria Telma Lins, McReath, Ian
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A Suíte Intrusiva Rio Dourado - um granito tipo A de 1,88 Ga - sudeste do Craton Amazônico - Mato Grosso - Brasil [PDF]
The Rio Dourado Intrusive Suite (RDIS) is composed of granitic rocks which are exposed in the southeastern Amazon Craton, Central Amazon Province. These granites intruded into the Paleoproterozoic granites of the Vila Rica Intrusive Suite.
Barros, Márcia Aparecida de Sant'Ana +6 more
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Análise integrada de dados aerogeofísicos e geológicos para caracterização da Faixa Alto Guaporé, porção sudeste de Rondônia [PDF]
Dissertação (mestrado)—Universidade de Brasília, Instituto de Geociências, Pós-Graduação em Geologia, 2015.A Faixa Alto Guaporé, porção sudeste do estado de Rondônia, constitui um segmento crustal de grande importância para o entendimento da evolução ...
Oliveira, Carlos Eduardo Santos de
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Geoquímica e Assinaturas Nd-Sr do Complexo Granitoide Pensamiento, Província Rondoniana-San Ignacio, Pré-Cambriano de Bolívia Oriental: Caracterização Petrogenética de um Arco Magmático no Mesoproterozoico [PDF]
The Pensamiento Granitoid Complex (PGC), located in the northern part of the eastern Precambrian shield of Bolivia, is tectonically assigned to the Rondonian-San Ignacio Province (1.55 - 1.30 Ga) of the Amazonian Craton that is made up by Archean and ...
Bettencourt, Jorge Silva +3 more
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Resposta eletromagnética e magnética do Depósito IOCG (Iron Oxide Copper Gold) Cristalino, Província Mineral de Carajás, Pará, Brasil [PDF]
Dissertação (mestrado)—Universidade de Brasília, Instituto de Geociências, 2012.O Depósito de Cu-Au Cristalino é um depósito IOCG (Iron Oxide Copper Gold) de classe mundial localizado na Província Mineral de Carajás, no núcleo Arqueano do Cráton ...
Silva, Aline Tavares Maciel Coelho
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Rb-Sr Geochronology and Geochemical Characteristics of Mafic Dikes in the Nova Lacerda and Conquista DOeste Region, Mato Grosso, SW Amazonian Craton [PDF]
Diques máficos NNW da região de Nova Lacerda e Conquista DOeste, em Mato Grosso, intrudem o Granito Nova Lacerda (1462 ± 12 Ma) pertencente ao Domínio Jauru da Província Rondoniana-San Ignacio (1,55 - 1,3 Ga), na parte SW do Craton Amazônico.
Costa, Paulo César Corrêa da +3 more
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STRUCTURAL, STRATIGRAPHIC AND METALLOGENETIC ASPECTS OF THE PARAGUAY FOLD AND THRUST BELT: IMPLICATIONS FOR GOLD MINERALIZATION AND COLLAGE OF THE GONDWANA: Aspectos estruturais, estratigráficos e metalogenéticos do Cinturão de Dobramentos e de Cavalgamento Paraguai: implicações para a mineralização do ouro e colagem do Gondwana [PDF]
- Paraguay Belt occupies the western portion of the Tocantins Province, surrounding the Southeast of the Amazonian Craton and the eastern border of the Rio Apa Block, suggesting continuity with Tucavaca Belt in Bolivia.
BARBOZA, Elzio da Silva +4 more
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Neoarchean sanukitoid series in the Karelian Province, Finland [PDF]
Sanukitoid series intrusions can be found throughout the Archean Karelian Province of the Fennoscandian shield. All sanukitoids share the same controversial elemental characteristics: they have high content of incompatible elements such as K, Ba, and Sr ...
Heilimo, Esa
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Isotopic evidence for the origin of Proterozoic massif-type anorthosites and their relation to rapakivi granites in southern Finland and northern Brazil [PDF]
The purpose of this study was to apply novel isotopic methods to shed light on the petrogenesis and magmatic evolution of Proterozoic massif-type anorthosites and related rapakivi granites in southern Finland and northern Brazil.
Heinonen, Aku
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Geochemistry of metals in the bottom sediments of tropical dam reservoirs in San Francisco River (Três Marias, MG) and Tocantins River (Tucuruí, PA), Brazil. [PDF]
In tropical climates, the high rainfall and temperature, throughout the annual cycle, allow high leaching rates of metallic elements from the basin upstream, which accumulate in the reservoirs.
Barriga, Fernando +3 more
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