Results 61 to 70 of about 467 (104)

New insights on the origin for rapakivi granites: U-Pb and Lu-Hf in zircon from Alto Candeias Intrusive Suite, Amazonian Craton, Brazil

The Southwestern Amazonian Craton, in Rondônia state, Brazil, comprises multiple orogens with ages ranging from 1.8 to 1.0 Ga, where successive magmatic, metamorphic, and deformational processes reworked ancient rocks and produced new complexes and ...
Ferreira, Laís de Oliveira, Santos, Anderson Costa dos, Geraldes, Mauro César, Pavón Pivetta, Cecilia, Queiroz, Luiza Almeida Villar de, Tavares, Armando Dias, Martins, Maria Virginia Alves, Debowski, Beatriz, Nogueira, Camila Cardoso   +8 more
core   +1 more source

A capa carbonática do sudoeste do cráton amazônico, estado de Rondônia: nova ocorrência e extensão dos eventos pós-glaciação marinoana (635 Ma) [PDF]

, 2014
In the Western Amazon Craton, specifically in Western Parecis Basin, Rondônia State, carbonate rocks exposed on border of Pimenta Bueno and Colorado Grábens are considered to be part of the eopaleozoic basin fill.
GAIA, Valber do Carmo de Souza
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1.76 Ga Volcano-plutonism In The Southwestern Amazonian Craton, Aripuanã-mt, Brazil: Tectono-stratigraphic Implications From Shrimp U-pb Zircon Data And Rock Geochemistry

, 2015
Paleoproterozoic felsic and mafic volcanic rocks, extrusive and hypabyssal quartz porphyry, and high-K, A-type epizonal granites dominate the Aripuanã region in the southwestern Amazonian craton in the Mato Grosso state of Brazil.
Neder R.D., Figueiredo B.R., McNaughton N.J., Leite J.A.D.   +3 more
core   +1 more source

Geologia, Petrografia e Geoquímica do Batólito Seringa, Província Carajás, SSE do Pará

Brazilian Journal of Geology
Resumo: O Granito Seringa, com cerca de 2250 km2 de superfície aflorante, representa o maior batólito da Província Carajás. É intrusivo em unidades arqueanas do Terreno Granito-Greenstone de Rio Maria, sudeste do Cráton Amazônico.
Antonio Lima de Paiva Júnior, Claudio Nery Lamarão, Paulo Henrique Araújo Lima   +2 more
doaj   +1 more source

Magmatismo do batólito rapakivi Rio Branco, sw do Cráton Amazônico (MT)

, 2011
Rio Branco Rapakivi Batholith is located on the southwestern portion of the Amazonian Craton in Mato Grosso and belongs to the Cachoeirinha Tectonic Domain, part of the Rio Negro-Juruena Geochronological Province, Central Brasil.
de Araújo, Larissa Marques Barbosa, Godoy, Antonio Misson   +1 more
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FORMAÇÃO SERRA DA BOCAINA - CONTRIBUIÇÃO DO VULCANISMO PALEOPROTEROZOICO DO ARCO MAGMÁTICO AMOGUIJÁ NO TERRENO RIO APA, SUL DO CRÁTON AMAZÔNICO

Geochimica Brasiliensis, 2017
The Serra da Bocaina Formation comprises Paleoproterozoic effusive and pyroclastic rocks displaying well preserved textures related to a plutonic-volcanic event recorded in the southern of the Amazonian Craton in the Rio Apa Terrane.
Cinthya Deus Souza, Maria Zélia Aguiar Sousa, Amarildo Salina Ruiz, Maria Elisa Fróes Batata, Ana Flávia Nunes Brittes, Jean Michel Lafon   +5 more
doaj   +1 more source

Estudo geoquímico dos folhetos Neoproterozóicos da formação guia no sul do cráton amazônico, Mato Grosso

, 2012
The climate change during the late Neoproterozoic had left important records in the Paraguay Belt in the north and south of the Amazon Craton and had increased the interest from some studies and debates in the region.
CARVALHO, Abner Souza de
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Interpretação geofísico-geológica de uma porção setentrional do cráton amazônico [PDF]

, 2018
Orientador: Prof. Dr. Francisco José Fonseca FerreiraCoorientadores: Roberto Gusmão de Oliveira, Nelson Joaquim ReisDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências da Terra, Programa de Pós-Graduação em Geologia.
Oliveira, Vanessa da Silva
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K'Mudku A-type magmatism in the southernmost Guyana Shield, central-north Amazon Craton (Brazil): the case of Pedra do Gavião syenogranite

Brazilian Journal of Geology
The Mesoproterozoic K'Mudku event (1490 - 1147 Ma) is represented by a britlle-ductile shear belt that cuts across the Paleoproterozoic units in the southernmost Guyana shield, central-north Amazon craton.
Valmir da Silva Souza, Antônio Gilmar Honorato de Souza, Elton Luiz Dantas, Cristóvão da Silva Valério   +3 more
doaj   +1 more source

Spatiotemporal constraints on the western Cauaburi Belt tectonics – northwestern Amazon Craton, Brazil

, 2021
Previous works defined the Cauaburi Belt (northwestern Amazon Craton), the theme of this dissertation, based on the presence of Paleoproterozoic calc-alkaline metagranitoids and orthogneisses with a subduction-related chemical signature.
Túlio Amós de Araújo Mendes
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