Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State

Detalhes bibliográficos
Autor(a) principal: Macedo, Mariana Cardoso
Data de Publicação: 2019
Outros Autores: Vilela, Claudia Gutterres, Labre, Nathalia dos Santos, Lourenço, Mariana Christensen
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anuário do Instituto de Geociências (Online)
Texto Completo: https://revistas.ufrj.br/index.php/aigeo/article/view/27220
Resumo: This work analysed assemblages of benthic foraminifera in core samples in lagoons from the Restinga de Jurubatiba Rio de Janeiro State, to observe paleoenvironmental changes and sedimentary deposition processes. Six cores were drilled (vibra-cores) until a depth of 1,56cm, in the Garças, Maria Menina, Robalo, Visgueiro, Catingosa and Pires lagoons. It was found that cores with sandy sediments presented lower abundance and richness of foraminifera species than fine sediment cores. Through the foraminiferal assemblages, four biofacies were characterized that relected episodes of distinct evolutionary conditions for each lagoon. For the sandy lagoons, it was recorded the biofacies Ammonia/ Elphidium representing moderate marine influence, and the biofacies Aglutinated/Trochammina inflata representing the lagoon confinement. At the muddy lagoons, occurred the biofacies Ammonia spp./Elphidium spp./Haynesina germanica which represents paleoenvironments with high marine influence and the biofacies A. tepida/ A. parkinsoniana with low marine influence that favor conditions to opportunistic species. Radiocarbon dating allowed to record, in the sedimentary deposition process of the lagoons, Holocene submergence phases related to the marine transgressions.
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spelling Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro StateForaminifera; lagoons; Holocene; sea-level oscillationThis work analysed assemblages of benthic foraminifera in core samples in lagoons from the Restinga de Jurubatiba Rio de Janeiro State, to observe paleoenvironmental changes and sedimentary deposition processes. Six cores were drilled (vibra-cores) until a depth of 1,56cm, in the Garças, Maria Menina, Robalo, Visgueiro, Catingosa and Pires lagoons. It was found that cores with sandy sediments presented lower abundance and richness of foraminifera species than fine sediment cores. Through the foraminiferal assemblages, four biofacies were characterized that relected episodes of distinct evolutionary conditions for each lagoon. For the sandy lagoons, it was recorded the biofacies Ammonia/ Elphidium representing moderate marine influence, and the biofacies Aglutinated/Trochammina inflata representing the lagoon confinement. At the muddy lagoons, occurred the biofacies Ammonia spp./Elphidium spp./Haynesina germanica which represents paleoenvironments with high marine influence and the biofacies A. tepida/ A. parkinsoniana with low marine influence that favor conditions to opportunistic species. Radiocarbon dating allowed to record, in the sedimentary deposition process of the lagoons, Holocene submergence phases related to the marine transgressions.Universidade Federal do Rio de JaneiroMacedo, Mariana CardosoVilela, Claudia GutterresLabre, Nathalia dos SantosLourenço, Mariana Christensen2019-07-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufrj.br/index.php/aigeo/article/view/2722010.11137/2017_3_266_280Anuário do Instituto de Geociências; Vol 40, No 3 (2017); 266-280Anuário do Instituto de Geociências; Vol 40, No 3 (2017); 266-2801982-39080101-9759reponame:Anuário do Instituto de Geociências (Online)instname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJenghttps://revistas.ufrj.br/index.php/aigeo/article/view/27220/14811Copyright (c) 2019 Anuário do Instituto de Geociênciashttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2019-07-30T20:09:28Zoai:www.revistas.ufrj.br:article/27220Revistahttps://revistas.ufrj.br/index.php/aigeo/indexPUBhttps://revistas.ufrj.br/index.php/aigeo/oaianuario@igeo.ufrj.br||1982-39080101-9759opendoar:2019-07-30T20:09:28Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
title Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
spellingShingle Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
Macedo, Mariana Cardoso
Foraminifera; lagoons; Holocene; sea-level oscillation
title_short Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
title_full Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
title_fullStr Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
title_full_unstemmed Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
title_sort Paleoenvironmental Evolution of the Restinga of Jurubatiba Lagoons, Rio de Janeiro State
author Macedo, Mariana Cardoso
author_facet Macedo, Mariana Cardoso
Vilela, Claudia Gutterres
Labre, Nathalia dos Santos
Lourenço, Mariana Christensen
author_role author
author2 Vilela, Claudia Gutterres
Labre, Nathalia dos Santos
Lourenço, Mariana Christensen
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Macedo, Mariana Cardoso
Vilela, Claudia Gutterres
Labre, Nathalia dos Santos
Lourenço, Mariana Christensen
dc.subject.none.fl_str_mv
dc.subject.por.fl_str_mv Foraminifera; lagoons; Holocene; sea-level oscillation
topic Foraminifera; lagoons; Holocene; sea-level oscillation
description This work analysed assemblages of benthic foraminifera in core samples in lagoons from the Restinga de Jurubatiba Rio de Janeiro State, to observe paleoenvironmental changes and sedimentary deposition processes. Six cores were drilled (vibra-cores) until a depth of 1,56cm, in the Garças, Maria Menina, Robalo, Visgueiro, Catingosa and Pires lagoons. It was found that cores with sandy sediments presented lower abundance and richness of foraminifera species than fine sediment cores. Through the foraminiferal assemblages, four biofacies were characterized that relected episodes of distinct evolutionary conditions for each lagoon. For the sandy lagoons, it was recorded the biofacies Ammonia/ Elphidium representing moderate marine influence, and the biofacies Aglutinated/Trochammina inflata representing the lagoon confinement. At the muddy lagoons, occurred the biofacies Ammonia spp./Elphidium spp./Haynesina germanica which represents paleoenvironments with high marine influence and the biofacies A. tepida/ A. parkinsoniana with low marine influence that favor conditions to opportunistic species. Radiocarbon dating allowed to record, in the sedimentary deposition process of the lagoons, Holocene submergence phases related to the marine transgressions.
publishDate 2019
dc.date.none.fl_str_mv 2019-07-30
dc.type.none.fl_str_mv

dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/27220
10.11137/2017_3_266_280
url https://revistas.ufrj.br/index.php/aigeo/article/view/27220
identifier_str_mv 10.11137/2017_3_266_280
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/27220/14811
dc.rights.driver.fl_str_mv Copyright (c) 2019 Anuário do Instituto de Geociências
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2019 Anuário do Instituto de Geociências
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
dc.source.none.fl_str_mv Anuário do Instituto de Geociências; Vol 40, No 3 (2017); 266-280
Anuário do Instituto de Geociências; Vol 40, No 3 (2017); 266-280
1982-3908
0101-9759
reponame:Anuário do Instituto de Geociências (Online)
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Anuário do Instituto de Geociências (Online)
collection Anuário do Instituto de Geociências (Online)
repository.name.fl_str_mv Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv anuario@igeo.ufrj.br||
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