Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/233386 |
Resumo: | The internal domain of the southern Brasília Belt, in the Estrela do Sul region comprises Eastern Goiandira, Western Goiandira units, Monte Carmelo complex and Araxá Group. The region encompasses two structural domains with distinct evolution stages: Southwest (SW) Domain and Northeast (NE) Domain. The SW Domain is characterized by four tectonic phases (D1, D2, D3 and D4). High angle foliation (S2) dipping to SW associated with a sub-horizontal N-S mineral lineation (L2) characterize the phase (D2). D3 phase is responsible for the regional structural framework. Besides that the developing of a low-angle foliation (S3), dipping to south, associated to E-W mineral lineation (L3) it is also associated with the D3 phase. The NE domain shows similarity with D3 structures of the SW Domain presenting low-angle foliation associated with E-W trending low-plunging mineral lineation. However, high-angle foliation similar to S2 in SW domain, were not found in NE domain. These features imply that the juxtaposition of the SE and NE domains occurred during the D3 phase. In the SW domain, the Araxá Group and Goiandira orthogneiss exhibit metamorphic parageneses of amphibolite facies. This metamorphic parageneses are associated with D2 phase and two metamorphic zones were identified: staurolite and sillimanite. |
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Repositório Institucional da UNESP |
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Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, BrazilEvolução estrutural do domínio interno da faixa brasília meridional na região de estrela do sul, minas gerais, BrasilAraxá GroupGoiandira OrthogneissesMonte Carmelo ComplexSouthern Brasília BeltStructural EvolutionThe internal domain of the southern Brasília Belt, in the Estrela do Sul region comprises Eastern Goiandira, Western Goiandira units, Monte Carmelo complex and Araxá Group. The region encompasses two structural domains with distinct evolution stages: Southwest (SW) Domain and Northeast (NE) Domain. The SW Domain is characterized by four tectonic phases (D1, D2, D3 and D4). High angle foliation (S2) dipping to SW associated with a sub-horizontal N-S mineral lineation (L2) characterize the phase (D2). D3 phase is responsible for the regional structural framework. Besides that the developing of a low-angle foliation (S3), dipping to south, associated to E-W mineral lineation (L3) it is also associated with the D3 phase. The NE domain shows similarity with D3 structures of the SW Domain presenting low-angle foliation associated with E-W trending low-plunging mineral lineation. However, high-angle foliation similar to S2 in SW domain, were not found in NE domain. These features imply that the juxtaposition of the SE and NE domains occurred during the D3 phase. In the SW domain, the Araxá Group and Goiandira orthogneiss exhibit metamorphic parageneses of amphibolite facies. This metamorphic parageneses are associated with D2 phase and two metamorphic zones were identified: staurolite and sillimanite.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Estadual Paulista – UNESP, Campus de Rio Claro e CEFET-MG/Campus AraxáUniversidade Estadual Paulista – UNESP, Campus de Rio Claro. Avenida 24-A, 1.515, Bela VistaCentro Federal de Educação Tecnológica de Minas Gerais CEFET-MG Unidade Araxá, Avenida Ministro Olavo Drummond, 25-AmazonasUniversidade Estadual Paulista – UNESP, Campus de Rio Claro e CEFET-MG/Campus AraxáUniversidade Estadual Paulista – UNESP, Campus de Rio Claro. Avenida 24-A, 1.515, Bela VistaUniversidade Estadual Paulista (UNESP)Unidade AraxáSantos, Bruna Letícia [UNESP]Simões, Luiz Sérgio Amarante [UNESP]Seer, Hildor José2022-05-01T08:15:14Z2022-05-01T08:15:14Z2021-08-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article287-305Geociencias, v. 40, n. 2, p. 287-305, 2021.1980-900X0101-9082http://hdl.handle.net/11449/2333862-s2.0-85112426908Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporGeocienciasinfo:eu-repo/semantics/openAccess2022-05-01T08:15:14Zoai:repositorio.unesp.br:11449/233386Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:27:53.227339Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil Evolução estrutural do domínio interno da faixa brasília meridional na região de estrela do sul, minas gerais, Brasil |
title |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil |
spellingShingle |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil Santos, Bruna Letícia [UNESP] Araxá Group Goiandira Orthogneisses Monte Carmelo Complex Southern Brasília Belt Structural Evolution |
title_short |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil |
title_full |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil |
title_fullStr |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil |
title_full_unstemmed |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil |
title_sort |
Structural evolution of the internal domain of the southern brasÍlia belt in estrela do sul, minas gerais, Brazil |
author |
Santos, Bruna Letícia [UNESP] |
author_facet |
Santos, Bruna Letícia [UNESP] Simões, Luiz Sérgio Amarante [UNESP] Seer, Hildor José |
author_role |
author |
author2 |
Simões, Luiz Sérgio Amarante [UNESP] Seer, Hildor José |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Unidade Araxá |
dc.contributor.author.fl_str_mv |
Santos, Bruna Letícia [UNESP] Simões, Luiz Sérgio Amarante [UNESP] Seer, Hildor José |
dc.subject.por.fl_str_mv |
Araxá Group Goiandira Orthogneisses Monte Carmelo Complex Southern Brasília Belt Structural Evolution |
topic |
Araxá Group Goiandira Orthogneisses Monte Carmelo Complex Southern Brasília Belt Structural Evolution |
description |
The internal domain of the southern Brasília Belt, in the Estrela do Sul region comprises Eastern Goiandira, Western Goiandira units, Monte Carmelo complex and Araxá Group. The region encompasses two structural domains with distinct evolution stages: Southwest (SW) Domain and Northeast (NE) Domain. The SW Domain is characterized by four tectonic phases (D1, D2, D3 and D4). High angle foliation (S2) dipping to SW associated with a sub-horizontal N-S mineral lineation (L2) characterize the phase (D2). D3 phase is responsible for the regional structural framework. Besides that the developing of a low-angle foliation (S3), dipping to south, associated to E-W mineral lineation (L3) it is also associated with the D3 phase. The NE domain shows similarity with D3 structures of the SW Domain presenting low-angle foliation associated with E-W trending low-plunging mineral lineation. However, high-angle foliation similar to S2 in SW domain, were not found in NE domain. These features imply that the juxtaposition of the SE and NE domains occurred during the D3 phase. In the SW domain, the Araxá Group and Goiandira orthogneiss exhibit metamorphic parageneses of amphibolite facies. This metamorphic parageneses are associated with D2 phase and two metamorphic zones were identified: staurolite and sillimanite. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-06 2022-05-01T08:15:14Z 2022-05-01T08:15:14Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Geociencias, v. 40, n. 2, p. 287-305, 2021. 1980-900X 0101-9082 http://hdl.handle.net/11449/233386 2-s2.0-85112426908 |
identifier_str_mv |
Geociencias, v. 40, n. 2, p. 287-305, 2021. 1980-900X 0101-9082 2-s2.0-85112426908 |
url |
http://hdl.handle.net/11449/233386 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Geociencias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
287-305 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128936184381440 |