Geology Of The Ribeira Belt
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Características de campo, petrografia e litogeoquímica da Unidade Santo Aleixo em sua localidade-tipo / Field geology, petrography and lithogeochemistry of Santo Aleixo Unit in its type location
The Santo Aleixo Unit in its type-location is represented by homogenous gneiss and subordinated banded and inclused mafic-felsic-rich gneisses, all rocks separated by gradational contacts. Leucogranitic gneiss, migmatites, late-tectonic granite stocks and diabase dikes also occur in the studied area. The gneissic foliation dips to SE or NW with low to medium
Publicado em: 2008
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2. Structural geology of northern limb of the Paraiba do Sul river divergent structure: cross-sections Três Rios (RJ) - Matias Barbosa (MG) and Barra do Piraí - Conservatória (RJ) / Geologia estrutural da aba norte da estrutura divergente do rio Paraíba do Sul: seções Três Rios (RJ) - Matias Barbosa (MG) e Barra do Piraí - Conservatório (RJ)
This study is about the structural geology of a portion of the Central Mantiqueira Province which corresponds to the north side of the structural divergence of the Rio Paraíba do Sul valley. Two geological cross-sections (Três Rios - Matias Barbosa and Barra do Piraí - Conservatória) provided geometrical and kinematics data. Lattice preferred orientation
Publicado em: 2008
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3. A interação entre os eventos tectônicos e a evolução geomorfológica da Serra da Bocaina, Sudeste do Brasil / The interaction between tectonic events and the landscape evolution of Bocaina Ridge, Southeastern Brazil
The Bocaina Ridge landscape is strongly controlled by both ductile and brittle structures related to the Ribeira Belt (Brasiliano Orogeny ca. 790-480Ma) and also to the mesozoic-cenozoic reactivations. The rocks were subdivided in four tectonic terrains accreted in the brasiliano collisional stages. The most prominent structures related to these collisions a
Publicado em: 2006