Results 81 to 90 of about 3,579 (174)
The structure of western Serra do Curral, Quadrilátero Ferrífero, and tectonic control of the high-grade iron hard bodies [PDF]
, 2014 The structure of western Serra do Curral, Quadrilátero Ferrífero, represents the partial exposure of a syncline that verges to NNW – Piedade Syncline. This regional structure has parasitic folds denominated as B1A which are refolded by folds B1B that ...
Carlos Alberto Rosière +4 more
core +2 more sources
Geodynamic evolution of the São Fidelis - Santo António de Pádua sector, central Ribeira Fold Belt, SE Brazil [PDF]
, 2009 Análise estrutural e resultados petrológicos recentes em granulitos da zona central da Faixa Ribeira indicam que a fase de deformaçãoD1 (cavalgamentos de alta temperatura: 245-260º, 55-70º NW) foi simultânea com o pico metamórfico, atingido aos 565 ...
Bento dos Santos, Telmo +4 more
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Implicates dos controles estruturais do depósito caraíbana colocação dos corpos cupríferos do Vale do Curaçá, Bahia - Brasil [PDF]
, 1996 O depósito cuprífero Caraíba é o maor dentre diversos corpos de rochas máficas -ultramáficas encontradas no Vale do Curaçá (norte do Estado da Bahia) na parte norte do Cráton do São Francisco.
Gaál, Edmund Gabor +2 more
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Sheet-crack cements in Marinoan (635 Ma) cap dolostones as regional benchmarks of vanishing ice-sheets. [PDF]
, 2012 Sheet-crack cements and coextensive intrastratal folds and breccias occur in a stratigraphically controlled, meter-thick zone, near the base of Marinoan (635 Ma) cap dolostones in slope settings.
Macdonald, Francis Alexander
core +1 more source
Brazilian Journal of Geology, 2019 The Precambrian basement of Northeastern Brazil is the product of Rhyacian block convergence. The main deformation and intrusion of crustal granitoids occurred between 2.15 and 1.8 Ga ago.
João Batista Guimarães Teixeira +3 more
doaj +1 more source
Peering beneath the Canadian crust [PDF]
, 2016 This work was funded by Leverhume Trust research project grant RPG-2013- 332. Equipment was provided by the NERC’s GEF, SEIS-UK: Loan 986. Many thanks to residents of Nova Scotia and New Brunswick for allowing us to install seismometers on their land ...
Bastow, Ian D. +10 more
core +1 more source
Advancing Precambrian palaeomagnetism with the PALEOMAGIA and PINT(QPI) databases. [PDF]
, 2017 State-of-the-art measurements of the direction and intensity of Earth's ancient magnetic field have made important contributions to our understanding of the geology and palaeogeography of Precambrian Earth.
Biggin, Andrew J +4 more
core +2 more sources
The role of V-shaped oceans and ribbon continents in the Brasiliano/PanAfrican assembly of western Gondwana. [PDF]
Sci Rep, 2023 Caxito FA, Alkmim FF.
europepmc +1 more source
Geologia USP. Série Científica, 2018 O Cinturão Salvador-Esplanada-Boquim (CSEB) é provavelmente um ramo nordeste do Orógeno Itabuna-Salvador-Curaçá. Neste trabalho, inédito para a região, é apresentada a caracterização petrográfica, petroquímica e geocronológica preliminar das rochas ...
Johildo Salomão Figueirêdo Barbosa +8 more
doaj +1 more source
Revista Brasileira de Geomorfologia, 2018 O presente trabalho investigou a evolução da rede de drenagem na alta/média bacia do Rio Grande, com foco em evidências de antigas conexões entre esta bacia e a bacia do Rio São Francisco no sudeste brasileiro.
Éric Andrade Rezende +2 more
doaj +1 more source