Results 91 to 100 of about 68,583 (146)

Geocronologia U-Pb de rochas vulcânicas associadas a os depósitos VMS da parte espanholada Faixa Piritosa Ibérica

, 2018
Trabajo presentado en el X Congresso Nacional de Geología, celebrado en Açores (Portugal), del 10 al 13 de julio de 2018 Peer ...
Mello, Caio Ribeiro de, Tassinari, Colombo Celso Gaeta, Conde, Carmen, Tornos, F.   +3 more
openaire   +1 more source

Idades preliminares U-Pb, ID-TIMS, das Ilhas Berlengas, Portugal = Preliminary ID-TIMS, U-Pb ages of the Berlengas Islands, Portugal [PDF]

, 2010
Apresentam-se os resultados provisórios das idades U-Pb de duas amostras das ilhas do grupo das Berlengas. No Farilhão Grande uma amostra de granito de duas micas com silimanite foi recolhida de um complexo metamórfico.
Bento dos Santos, Telmo, González-Clavijo, Emilio J., Ribeiro, Maria Luísa, Valverde Vaquero, P.   +3 more
core  

Editorial

Revista Investigaciones y Aplicaciones Nucleares, 2019
El 20 de enero del año 2020 se conmemorarán 55 años de la inauguración, durante la presidencia de Guillermo León Valencia, de nuestro reactor de investigación IAN-R1, que se constituyó en el símbolo del comienzo de la era nuclear en Colombia.
Hernán Olaya Dávila
doaj   +1 more source

Idade, origem e protólitos de granitos variscos de três áreas portuguesas [PDF]

, 2013
Publicação digital - Online em 5 Fev ...
Lima, S. M., Neiva, A.M.R., Silva, Paulo Bravo, Teixeira, R. J. S.   +3 more
core  

New insights from low-temperature thermochronology into the tectonic and geomorphologic evolution of the south-eastern Brazilian highlands and passive margin [PDF]

, 2019
The South Atlantic passive margin along the south-eastern Brazilian highlands exhibits a complex landscape, including a northern inselberg area and a southern elevated plateau, separated by the Doce River valley.
De Grave, Johan, Novo, Tiago, Pedrosa-Soares, Antônio Carlos, Van Ranst, Gerben, Vermeesch, Pieter   +4 more
core   +2 more sources

Stratigraphy, tectonics and detrital zircon U-Pb (LA-ICP-MS) geochronology of the Rio Preto Belt and northern Paramirim corridor, NE, Brazil

Brazilian Journal of Geology
: Two important Proterozoic metasedimentary sequences, the Rio Preto and Santo Onofre Groups, crop out along the northwestern margin of the São Francisco craton and in northern Paramirim corridor, respectively.
Davi da Costa Bezerra Gobira de Alcântara, Alexandre Uhlein, Fabrício de Andrade Caxito, Ivo Dussin, Antônio Carlos Pedrosa-Soares   +4 more
doaj   +1 more source

Isotopic evidence for the origin of Proterozoic massif-type anorthosites and their relation to rapakivi granites in southern Finland and northern Brazil [PDF]

, 2012
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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Geological and isotopic characteristics of granites from the Western Pernambuco-Alagoas Domain: implications for the crustal evolution of the Neoproterozoic Borborema Province

Brazilian Journal of Geology
The Western Pernambuco-Alagoas Domain is a complex tectonic domain of the Southern part of the Neoproterozoic Borborema Province. It borders the Northern margin of São Francisco Craton. U-Pb and Sm-Nd data discussed in this work show that, in the Western
Rodrigo Fabiano da Cruz, Márcio Martins Pimentel, Ana Cláudia de Aguiar Accioly, Joseneusa Brilhante Rodrigues   +3 more
doaj   +1 more source

Geochronological and geochemical data from fracture-filling calcites from the Lower Pedraforca thrust sheet (SE Pyrenees). [PDF]

Data Brief, 2020
Cruset D, Cantarero I, Benedicto A, John CM, Vergés J, Albert R, Gerdes A, Travé A.   +7 more
europepmc   +1 more source

Estrutura e geoquí­mica das fases magmática e tardimagmática em zircões do maciço graní­tico de Peneda-Gerês (NW Pení­nsula Ibérica) [PDF]

, 2005
Efectuou-se um estudo da estrutura interna e composição química dos zircões de granitos do maciço de Peneda-Gerês (granitos de Gerês, Paufito, Illa e Carris) com recurso a microscópio electrónico de varrimento (MEV) e microssonda electrónica. Este estudo
Dias, G., Mendes, Anabela Carreira, Pupin, J. P.   +2 more
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