Results 1 to 10 of about 62,283 (208)
The Novo Progresso Formation, Tapajós Gold Province, Amazonian Craton: zircon U-Pb and Lu-Hf constraints on the maximum depositional age, reconnaissance provenance study, and tectonic implications [PDF]
Journal of the Geological Survey of Brazil, 2018 The Novo Progresso Formation, located in southeastern Tapajós Gold Province, at its boundary with the Iriri-Xingu Domain, south of the Amazonian Craton, is composed of quartz- and lithic-arenites and siltstones with volcanic/volcanoclastic contributions,
Evandro Klein +6 more
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The role of V-shaped oceans and ribbon continents in the Brasiliano/PanAfrican assembly of western Gondwana [PDF]
Scientific Reports, 2023 Western Gondwana amalgamated by collision of continental blocks that did not form prior conjugated margins (extroversion), and by typical Wilson cycles, when continental blocks that rifted away giving birth to new oceans were subsequently re-joined in ...
Fabrício de Andrade Caxito +1 more
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Geochemistry, Geophysics, Geosystems, 2022 Constraints on the structure of cratonic lithosphere are essential to improve our understanding of craton formation, evolution and long‐term stability.
Isabella Altoe +2 more
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Journal of the Geological Survey of Brazil, 2022 We present new petrographic and chemical data together with calculated P-T equilibrium conditions of peridotite xenoliths enclosed in kimberlites from Rondônia, Northern Brazil (Cosmos-1 and Carolina-1) and Minas Gerais, Southeastern Brazil (Canastra-1)
Vidyã Vieira Almeida +4 more
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Geothermobarometry and geochemical modeling of Archean charnockites from Carajás Province, Amazonian craton, Brazil [PDF]
Brazilian Journal of Geology, 2022 Orthopyroxene-bearing tonalites/trondhjemites with scarce quartz diorites comprise the Café enderbite that crops out in three Neoarchean plutons in the central portion of the Canaã dos Carajás domain, Carajás Province, northern Brazil.
Bhrenno Marangoanha +4 more
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Magnetic petrology of the Neoarchean granitoids in the Vila Jussara Suite, Carajás Province, Amazonian Craton [PDF]
Brazilian Journal of Geology, 2022 The Vila Jussara Suite (VJS) is formed by Neoarchean (~ 2.75 Ga) granites that are located in the Sapucaia Domain of the Carajás Province (CP), Amazonian Craton.
Luan Alexandre Martins de Sousa +4 more
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Journal of the Geological Survey of Brazil, 2022 Archean and Paleoproterozoic granitoids with different geochemical affinities are widely distributed in the basement of high-grade metamorphic rocks of the Bacajá Domain, which consists of Rhyacian granite-greenstone terrain with Archean-Siderian ...
Cleberson Vieira da Silva +2 more
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Paleoproterozoic felsic volcanism of Iricoumé group, Erepecuru-Trombetas domain, Amazonian central province: Field and petrographic characterization and Pb-Pb zircon geochronology [PDF]
Geologia USP. Série Científica, 2013 The Iricoumé group consists of very well preserved pyroclastic and effusive volcanic rocks as a part of an extensive volcano-plutonic event, which marked the central part of the Amazonian craton during the Orosirian. Such rocks occur in the southern part
Lúcia Travassos da Rosa Costa +3 more
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Boletín Geológico, 2020 The Guaviare Complex is a new unit defined in the Colombian Amazonian Craton, which is part of the Precambrian basement located in southeastern Colombia.
Carolina Amaya López +8 more
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Journal of the Geological Survey of Brazil, 2021 The Querari Complex corresponds to the basement rocks from Uaupés Domain and represents one of the least studied units in the northwest of the Rio Negro Province, Amazonian Craton.
Paulo Jerry Bentes Gomes +4 more
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