O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UERJ |
Texto Completo: | http://www.bdtd.uerj.br/handle/1/19736 |
Resumo: | The North Brazilian Ridge (NBR) and the Fernando de Noronha Ridge (FNR) are volcanic features that extend between the Barreirinhas and Potiguar basins, mainly along its deepest portion. Even though they constitute significant features and impose a notable control factor in the compartmentalization and sedimentary architecture of the Brazilian Equatorial Margin, several factors remain unknown, such as the origin of the volcanism and its interaction with marine sedimentation. For this, through the analysis of seismic and bathymetric data from the LEPLAC project (Plano de Levantamento da Plataforma Continental Brasileira), this current study aims to analyze evidence about the origin of these submarine ridges and how they affected the margin throughout its geological history. The morphology of the margin indicates how the ridges segment the margin, imposing distinct bathymetric patterns, which indicates, together with the maps of basement top and sedimentary isopachs, that the ridges, even though presenting morphological expression of isolated seamounts, are constituted by, at least relatively, a continuous pedestal/barrier in subsurface. In addition, volcanic bodies, associated laterally with the ridges have been identified and dated based on chronostratigraphic horizons, indicate that both ridges show a common and gradual evolution, with decreasing ages from west of NBR to east of FNR, at an average rate and a offset compatible with the estimated by the South American plate. Such characteristics, in addition to the spatial correlation with basement structures and probable pre-existing structures associated with the ridges, lead us to propose that the most accepted hypothesis for the origin and evolution of NBR and FNR is the presence of a mantle plume, which generated the magmatism, that then used of pre-existing structures: the fracture zone of São Paulo and Romanche (northern and southern segments of the NBR), the Chain Fracture Zone (FNR), and a ridge-jump (central segment of the CNB), deep listospheric structures. |
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Reis, Antônio Tadeu dosSilva, Cleverson Guizan daSilva, Cleverson Guizan daGuerra, Josefa VarelaStanton, Natasha Santos GomesFerrari, André LuizVidotti, Roberta Maryhttp://lattes.cnpq.br/6003357891116846Santos, Marcos Vinícius Moraes dos2023-06-07T20:25:52Z2021-03-16SANTOS, Marcos Vinícius Moraes dos. O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira. 2021. 177 f. Tese (Programa de Pós-Graduação em Oceanografia) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2023.http://www.bdtd.uerj.br/handle/1/19736The North Brazilian Ridge (NBR) and the Fernando de Noronha Ridge (FNR) are volcanic features that extend between the Barreirinhas and Potiguar basins, mainly along its deepest portion. Even though they constitute significant features and impose a notable control factor in the compartmentalization and sedimentary architecture of the Brazilian Equatorial Margin, several factors remain unknown, such as the origin of the volcanism and its interaction with marine sedimentation. For this, through the analysis of seismic and bathymetric data from the LEPLAC project (Plano de Levantamento da Plataforma Continental Brasileira), this current study aims to analyze evidence about the origin of these submarine ridges and how they affected the margin throughout its geological history. The morphology of the margin indicates how the ridges segment the margin, imposing distinct bathymetric patterns, which indicates, together with the maps of basement top and sedimentary isopachs, that the ridges, even though presenting morphological expression of isolated seamounts, are constituted by, at least relatively, a continuous pedestal/barrier in subsurface. In addition, volcanic bodies, associated laterally with the ridges have been identified and dated based on chronostratigraphic horizons, indicate that both ridges show a common and gradual evolution, with decreasing ages from west of NBR to east of FNR, at an average rate and a offset compatible with the estimated by the South American plate. Such characteristics, in addition to the spatial correlation with basement structures and probable pre-existing structures associated with the ridges, lead us to propose that the most accepted hypothesis for the origin and evolution of NBR and FNR is the presence of a mantle plume, which generated the magmatism, that then used of pre-existing structures: the fracture zone of São Paulo and Romanche (northern and southern segments of the NBR), the Chain Fracture Zone (FNR), and a ridge-jump (central segment of the CNB), deep listospheric structures.A Cadeia Norte Brasileira (CNB) e a Cadeia Fernando de Noronha (CFN) são feições vulcânicas que se estendem entre as bacias de Barreirinhas e Potiguar, principalmente ao longo da porção mais profunda. Mesmo que constituam feições imponentes e imponham notável fator de controle na compartimentação e arquitetura sedimentar da Margem Equatorial Brasileira, diversos fatores permanecem desconhecidos, como a origem do vulcanismo e sua interação com a deposição sedimentar. Para tal, por meio da análise de dados sísmicos e batimétricos oriundos do Plano de Levantamento da Plataforma Continental Brasileira (LEPLAC), o presente estudo visa analisar indícios sobre a origem dessas cadeias e como afetaram a margem ao longo da história geológica. Com isso, revelam-se informações inéditas sobre a margem equatorial brasileira e bacia oceânica adjacente. A morfologia da margem indica como as cadeias funcionam segmentando a margem, impondo distintos padrões batimétricos entre suas porções, o que indica, juntamente com os mapas de topo do embasamento e de isópacas sedimentares, que as cadeias constituem pedestais, ao menos relativamente, contínuos em subsuperfície. Além disso, foram identificados corpos vulcânicos, associados às cadeias, datados com base nos horizontes cronoestratigráficos, os quais indicam que ambas as cadeias apresentam uma origem comum e uma evolução gradual, com idades decrescentes de oeste da CNB a leste da CFN, a uma taxa e trajeto compatível com o estimado para a placa Sul-Americana. Tais características, além da correlação espacial de estruturas do embasamento a supostas estruturas pré-existentes às cadeias, nos levam a propor que a hipótese mais aceita para a origem e evolução da CNB e da CFN seja a ocorrência de uma pluma mantélica, que gerou magmatismo que se aproveitou de estruturas litosféricas profundas pré-existentes: a zona de fratura de São Paulo e de Romanche (segmentos norte e sul da CNB), a Zona de Fratura de Chain (CFN), e um ridge-jump (segmento central da CNB).Submitted by Priscila CTC/C (prisfreitas8@gmail.com) on 2023-06-07T20:25:52Z No. of bitstreams: 1 Tese - Marcos Vinícius Moraes dos Santos - 2021 - Completa.pdf: 10336203 bytes, checksum: fb241e4a28060247130eed0631fc6c5a (MD5)Made available in DSpace on 2023-06-07T20:25:52Z (GMT). No. of bitstreams: 1 Tese - Marcos Vinícius Moraes dos Santos - 2021 - Completa.pdf: 10336203 bytes, checksum: fb241e4a28060247130eed0631fc6c5a (MD5) Previous issue date: 2021-03-16Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade do Estado do Rio de JaneiroPrograma de Pós-Graduação em OceanografiaUERJBrasilCentro de Tecnologia e Ciências::Faculdade de OceanografiaVulcanoestratigrafiaEvolução de montes submarinosCompartimentação estruturalZonas de fratura oceânicaPlumas mantélicasVulcanoestratigraphyEvolution of seamountsStructural compartmentationFracture zonesMantle plumesCIENCIAS EXATAS E DA TERRA::GEOCIENCIASO papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial BrasileiraThe role of volcanic ridges in the compartmentalization, magmatism and sedimentation of the Brazilian Equatorial margininfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UERJinstname:Universidade do Estado do Rio de Janeiro (UERJ)instacron:UERJORIGINALTese - Marcos Vinícius Moraes dos Santos - 2021 - Completa.pdfTese - Marcos Vinícius Moraes dos Santos - 2021 - Completa.pdfapplication/pdf10336203http://www.bdtd.uerj.br/bitstream/1/19736/2/Tese+-+Marcos+Vin%C3%ADcius+Moraes+dos+Santos+-+2021+-+Completa.pdffb241e4a28060247130eed0631fc6c5aMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82123http://www.bdtd.uerj.br/bitstream/1/19736/1/license.txte5502652da718045d7fcd832b79fca29MD511/197362023-06-07 17:25:52.97oai:www.bdtd.uerj.br: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.bdtd.uerj.br/PUBhttps://www.bdtd.uerj.br:8443/oai/requestbdtd.suporte@uerj.bropendoar:29032023-06-07T20:25:52Biblioteca Digital de Teses e Dissertações da UERJ - Universidade do Estado do Rio de Janeiro (UERJ)false |
dc.title.por.fl_str_mv |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira |
dc.title.alternative.eng.fl_str_mv |
The role of volcanic ridges in the compartmentalization, magmatism and sedimentation of the Brazilian Equatorial margin |
title |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira |
spellingShingle |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira Santos, Marcos Vinícius Moraes dos Vulcanoestratigrafia Evolução de montes submarinos Compartimentação estrutural Zonas de fratura oceânica Plumas mantélicas Vulcanoestratigraphy Evolution of seamounts Structural compartmentation Fracture zones Mantle plumes CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS |
title_short |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira |
title_full |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira |
title_fullStr |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira |
title_full_unstemmed |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira |
title_sort |
O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira |
author |
Santos, Marcos Vinícius Moraes dos |
author_facet |
Santos, Marcos Vinícius Moraes dos |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Reis, Antônio Tadeu dos |
dc.contributor.advisor-co1.fl_str_mv |
Silva, Cleverson Guizan da |
dc.contributor.referee1.fl_str_mv |
Silva, Cleverson Guizan da |
dc.contributor.referee2.fl_str_mv |
Guerra, Josefa Varela |
dc.contributor.referee3.fl_str_mv |
Stanton, Natasha Santos Gomes |
dc.contributor.referee4.fl_str_mv |
Ferrari, André Luiz |
dc.contributor.referee5.fl_str_mv |
Vidotti, Roberta Mary |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6003357891116846 |
dc.contributor.author.fl_str_mv |
Santos, Marcos Vinícius Moraes dos |
contributor_str_mv |
Reis, Antônio Tadeu dos Silva, Cleverson Guizan da Silva, Cleverson Guizan da Guerra, Josefa Varela Stanton, Natasha Santos Gomes Ferrari, André Luiz Vidotti, Roberta Mary |
dc.subject.por.fl_str_mv |
Vulcanoestratigrafia Evolução de montes submarinos Compartimentação estrutural Zonas de fratura oceânica Plumas mantélicas |
topic |
Vulcanoestratigrafia Evolução de montes submarinos Compartimentação estrutural Zonas de fratura oceânica Plumas mantélicas Vulcanoestratigraphy Evolution of seamounts Structural compartmentation Fracture zones Mantle plumes CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS |
dc.subject.eng.fl_str_mv |
Vulcanoestratigraphy Evolution of seamounts Structural compartmentation Fracture zones Mantle plumes |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS |
description |
The North Brazilian Ridge (NBR) and the Fernando de Noronha Ridge (FNR) are volcanic features that extend between the Barreirinhas and Potiguar basins, mainly along its deepest portion. Even though they constitute significant features and impose a notable control factor in the compartmentalization and sedimentary architecture of the Brazilian Equatorial Margin, several factors remain unknown, such as the origin of the volcanism and its interaction with marine sedimentation. For this, through the analysis of seismic and bathymetric data from the LEPLAC project (Plano de Levantamento da Plataforma Continental Brasileira), this current study aims to analyze evidence about the origin of these submarine ridges and how they affected the margin throughout its geological history. The morphology of the margin indicates how the ridges segment the margin, imposing distinct bathymetric patterns, which indicates, together with the maps of basement top and sedimentary isopachs, that the ridges, even though presenting morphological expression of isolated seamounts, are constituted by, at least relatively, a continuous pedestal/barrier in subsurface. In addition, volcanic bodies, associated laterally with the ridges have been identified and dated based on chronostratigraphic horizons, indicate that both ridges show a common and gradual evolution, with decreasing ages from west of NBR to east of FNR, at an average rate and a offset compatible with the estimated by the South American plate. Such characteristics, in addition to the spatial correlation with basement structures and probable pre-existing structures associated with the ridges, lead us to propose that the most accepted hypothesis for the origin and evolution of NBR and FNR is the presence of a mantle plume, which generated the magmatism, that then used of pre-existing structures: the fracture zone of São Paulo and Romanche (northern and southern segments of the NBR), the Chain Fracture Zone (FNR), and a ridge-jump (central segment of the CNB), deep listospheric structures. |
publishDate |
2021 |
dc.date.issued.fl_str_mv |
2021-03-16 |
dc.date.accessioned.fl_str_mv |
2023-06-07T20:25:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
SANTOS, Marcos Vinícius Moraes dos. O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira. 2021. 177 f. Tese (Programa de Pós-Graduação em Oceanografia) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2023. |
dc.identifier.uri.fl_str_mv |
http://www.bdtd.uerj.br/handle/1/19736 |
identifier_str_mv |
SANTOS, Marcos Vinícius Moraes dos. O papel das cadeias vulcânicas na compartimentação, magmatismo e sedimentação da margem Equatorial Brasileira. 2021. 177 f. Tese (Programa de Pós-Graduação em Oceanografia) - Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 2023. |
url |
http://www.bdtd.uerj.br/handle/1/19736 |
dc.language.iso.fl_str_mv |
por |
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por |
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openAccess |
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Universidade do Estado do Rio de Janeiro |
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Programa de Pós-Graduação em Oceanografia |
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UERJ |
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Brasil |
dc.publisher.department.fl_str_mv |
Centro de Tecnologia e Ciências::Faculdade de Oceanografia |
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Universidade do Estado do Rio de Janeiro |
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