Results 21 to 30 of about 874 (166)

Experimental models of 'Basement'-controlled salients - application to the proterozoic fold-thrust belt of the quadrilátero ferrífero (Minas Gerais, Southeastern Brazil)

Anais da Academia Brasileira de Ciências, 2003
Scaled sandbox models are used to simulate the development of ´basement´-controlled, salients. We investigate the controlling factors on the development of closed curvatures in map-view, considering constant both the sand pack thickness and the space ...
Caroline J. S. Gomes, Milton Pereira-Filho, Silvia C. M. Braga   +2 more
doaj   +1 more source

Geological and structural markers of the eastern Borborema Province based on a geotransect covering the Paraíba, Pernambuco, Alagoas and Sergipe states, northeastern Brazil

Journal of the Geological Survey of Brazil, 2020
This study comprises a field investigation of a NE-SW geological transect along the Eastern Borborema Province in NE Brazil. The transect covered distinct geological domains that differ in a number of aspects, being bounded by shear zones.
Haroldo Monteiro Lima, Lauro Cesar Montefalco de Lira Santos, Roberto Max de Argollo, Edilton Santos   +3 more
doaj   +1 more source

Uma abordagem de mapeamento de potencial mineral dos depósitos de níquel supérgeno do sudeste do Cráton do São Francisco [PDF]

, 2017
Southwestern São Francisco Craton makes limit with Brasília thrust-fold belt and involves rocks from Archean to formed during the Brasiliano-Pan Africano Neoproterozoic event, including a mafic-ultramafic belt (Morro do Ferro Greenstone Belt) hosted ...
Faria Júnior, Ilio Rodarte, Motta, João Gabriel   +1 more
core   +1 more source

Transpressive dextral shear in the Italva-Itaperuna section, Northern State of Rio de Janeiro, Brazil

Anais da Academia Brasileira de Ciências, 2008
Structural analysis carried out on a segment of the Neoproterozoic Ribeira Belt, southeastern Brazil, show that it represents part of the transpressive dextral orogen related to the Central Mantiqueira Province.
Tiago R. Karniol, Rômulo Machado, Nolan M. Dehler   +2 more
doaj   +1 more source

A discordância angular e erosiva entre os grupos Chapada Diamantina e Bambuí (Una) na folha Mirangaba-Bahia

Geologia USP. Série Científica, 2012
As relações litoestratigráficas entre os grupos Chapada Diamantina e Bambuí/Una foram estabelecidas praticamente com os trabalhos de J. C. Branner, há cerca de um século.
Benjamim Bley de Brito Neves, Reginaldo Alves dos Santos, Ginaldo Ademar da Cruz Campanha   +2 more
doaj   +1 more source

Geomorfologia da Mesorregião Norte de Minas Gerais – Brasil

Revista da ANPEGE
A mesorregião Norte de Minas Gerais, situada entre o cráton do São Francisco e o Orógeno Araçuaí, é palco de diversos processos morfogenéticos que deram origem às mais diversas formas de relevo.
Luis Ricardo Fernandes da Costa, João Paulo Sena Souza, Hernando Baggio Filho, José Adilson Dias Cavalcanti, Manoel Reinaldo Leite   +4 more
doaj   +1 more source

Chemostratigraphy of the lower Bambuí Group, southwestern São Francisco Craton, Brazil: insights on Gondwana paleoenvironments

Brazilian Journal of Geology
: The Bambuí Group, the most extensive carbonate-siliciclastic cover on the São Francisco craton, has been a matter of debate because of its potential correlations to global glacial events.
Matheus Kuchenbecker, Marly Babinski, Antônio Carlos Pedrosa-Soares, Leonardo Lopes-Silva, Felipe Pimenta   +4 more
doaj   +1 more source

EVOLUÇÃO DA REDE DE DRENAGEM E EVIDÊNCIAS DE ANTIGAS CONEXÕES ENTRE AS BACIAS DOS RIOS GRANDE E SÃO FRANCISCO NO SUDESTE BRASILEIRO

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, André Augusto Rodrigues Salgado, Paulo de Tarso Amorim Castro   +2 more
doaj   +1 more source

Ductile Extrusion Triggered by Continental Collision in NE Brazil

Terra Nova, EarlyView.
ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser, C. E. Ganade, C. R. Cioffi, J. B. Forshaw, M. Hueck, E. Celis, M. A. S. Basei   +6 more
wiley   +1 more source

Aulacógeno do Paramirim: análise da deformação finita e encurtamento tectônico, implicações para a evolução do cráton do São Francisco e seus orógenos marginais 

, 2023
This dissertation presents new findings and investigates issues regarding the Structural Geology of the Paramirim aulacogen region. The study area is understood as a system of intracontinental rifts developed in the São Francisco craton from the ...
Veloso, Raulindo Santana Silva
core   +1 more source