Results 91 to 100 of about 1,323 (166)

Pernambuco-Alagoas, Riacho do Pontal, and Sergipano domains of the Borborema Province, Northeastern Brazil: a geological and geochronological synthesis

Journal of the Geological Survey of Brazil
In recent years, the number of works seeking to advance the geological and geotectonic knowledge of the Borborema Province has been increasing. However, in the context of the Southern Borborema Province there are few studies aimed at understanding its ...
Jocilene dos Santos Santana, Reginaldo Alves dos Santos, Basílio Elesbão da Cruz Filho, Frank Gurgel Santos, Camila Franco Basto, José Alberto Rodrigues do Vale, Vladimir Cruz de Medeiros, Tercyo Rinaldo Gonçalves Pinéo, Débora Melo Ferrer de Morais   +8 more
doaj   +1 more source

Sedimentary and U-Pb detrital zircons provenance of the Paleoproterozoic Piracicaba and Sabará groups, Quadrilátero Ferrífero, Southern São Francisco craton, Brazil

Brazilian Journal of Geology
The Quadrilátero Ferrífero is an important mineral province located in Southern São Francisco craton, SE Brazil. Its prominent feature is the Gandarela syncline that was formed as part of the regional deformation event in the southernmost part of the ...
Luiz Fernandes Dutra, Maximiliano Martins, Cristiano Lana   +2 more
doaj   +1 more source

Foreland deformation of Brasiliano orogens at the eastern and western margins of the São Francisco Craton: K–Ar illite dating of the Araçuaí and Brasília fold-and-thrust belts

The São Francisco Craton played a central role in the evolution of the Brasiliano Orogeny, with significant deformation along its eastern and western margins forming the Araçuaí and Brasília fold-and-thrust belts.
Esteves, M. C. B., Campanha, G. A. C., Joncew, H. C., Hueck, M., Wemmer, K., Faleiros, F. M., Veloso, R. S. S.   +6 more
core   +1 more source

Closing the Clymene ocean and bending a Brasiliano belt: Evidence for the Cambrian formation of Gondwana, southeast Amazon craton

, 2010
We report new paleomagnetic and geochronological data from Ediacaran rift-drift carbonates in the Paraguai belt at the southern end of the suture zone between the Amazon craton and the Sao Francisco and Rio de Plata cratons, South America.
SOLUM, J. G., TOHVER, E., TRINDADE, R. I. F., NOGUEIRA, A. C., Riccomini, Claudio, HALL, C. M.   +5 more
core   +1 more source

Idades U-Pb (LA-ICPMS) para as suítes Caraguataí e Jussiape, Bloco Gavião, Bahia

Brazilian Journal of Geology
Resumo: A área de trabalho encontra-se inserida na porção nordeste do Cráton do São Francisco, no Bloco Gavião. O mapeamento geológico realizado na região de Abaíra-Jussiape permitiu identifcar duas suítes magmáticas, que foram denominadas de Caraguataí ...
Simone Cerqueira Pereira Cruz, Maurício Antônio Carneiro, Johildo Salomão Figueiredo Barbosa, Adriano Alberto Marques Martins, Jocilene dos Santos Santana, Leo Teixeira, Guilherme de Souza Silva Tavares Gonçalves, Angela Beatriz Menezes Leal, Elton Dantas, Márcio Pimentel   +9 more
doaj   +1 more source

Geochemistry and provenance of Mesozoic sandstones in Khon Kaen Geopark: Implication for tectonics of the western Khorat Plateau of Thailand. [PDF]

PLoS One, 2023
Singtuen V, Phajuy B, Anumart A, Charusiri P, Chawthai N, Heggemann H.   +5 more
europepmc   +1 more source

O cinturão epidérmico de antepaís da Bacia de Irecê, Cráton do São Francisco: principais elementos estruturais e modelagem física analógica

Geologia USP. Série Científica, 2013
Localizada na porção central do estado da Bahia, a Bacia de Irecê exibe as mais significativas exposições de coberturas neoproterozoicas da porção norte do Cráton do São Francisco.
Humberto Luis Siqueira Reis, Caroline Janette Souza Gomes, Daniel Galvão Carnier Fragoso, Matheus Kuchenbecker   +3 more
doaj  

Twenty million years of post-orogenic fluid production and hydrothermal mineralization across the external Araçuaí orogen and adjacent São Francisco craton, SE Brazil.

, 2019
The Araçuaí orogen (AO) is a hot orogenic system that is known for its widespread and long-lived magmatism (630–480 Ma).Within the last c. 20 million years of its evolution, the AO saw the widespread development of hydrothermal systems in its lower ...
Queiroga, Gláucia Nascimento, Gonçalves, Guilherme de Oliveira, Cipriano, Ricardo Augusto Scholz, Lana, Cristiano de Carvalho, Buick, Ian S., Alkmim, Fernando Flecha de   +5 more
core   +1 more source

Provenance of zircon xenocrysts in the Neoproterozoic Brauna Kimberlite Field, São Francisco Craton, Brazil: Evidence for a thick Palaeoproterozoic lithosphere beneath the Serrinha block

, 2013
The 642 Ma-old Brauna Kimberlite Field is located on the northeastern sector of the São Francisco Craton (Serrinha block) and is one of the rare Neoproterozoic kimberlitic events in South America.
McNaughton, Neal, Donatti-Filho J.P., Donatti-Filho, J., Oliveira E.P., McNaughton N.J., Oliveira, E.   +5 more
core   +1 more source

Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran-Cambrian ecosystems and prompted an early Cambrian greenhouse world. [PDF]

Sci Rep, 2021
Caxito F, Lana C, Frei R, Uhlein GJ, Sial AN, Dantas EL, Pinto AG, Campos FC, Galvão P, Warren LV, Okubo J, Ganade CE.   +11 more
europepmc   +1 more source