Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil

Detalhes bibliográficos
Autor(a) principal: Pereira, Tainá Paiva
Data de Publicação: 2023
Outros Autores: Leite Mansur, Kátia, Goulart Rodrigues, Amanda
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/49383
Resumo: This study discusses the cause of local lithification in sediments from quaternary beach ridges of Paraíba do Sul Deltaic Complex (Rio de Janeiro, Brazil) and its application to the concept of geological heritage. These beach ridges were excavated to construct the Campos - Macaé Canal, opened in the 19th century predominantly by slave labor. A detailed sedimentological, mineralogical and petrological study was performed. The consolidated material consists to fine-grained sandstone with incipient parallel lamination. Kaolinite associated with iron oxides/hydroxides is organized in thin coatings, sometimes forming meniscus and bridges. The heavy mineral assembly of the sandstone is similar to those found in the beach ridges friable samples. The sandstone granulometry increases from east to west along the canal margins and the same pattern is observed in the adjacent beach ridges. We suggest that pedogenic processes acted intensively on Canal margins after its opening, causing mechanical infiltration and translocation of clay minerals, promoting differentiated consolidation of sediments only in that part that was deepened during the excavation. The anthropic action altered the local physiography by exposing the sediments of beach ridges. Therefore, this sandstone should be considered a geological heritage due to its unique occurrence, touristic, historical, scientific and educational value. 
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spelling Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, BrazilAnthropoceneBeach ridgesGeological heritageThis study discusses the cause of local lithification in sediments from quaternary beach ridges of Paraíba do Sul Deltaic Complex (Rio de Janeiro, Brazil) and its application to the concept of geological heritage. These beach ridges were excavated to construct the Campos - Macaé Canal, opened in the 19th century predominantly by slave labor. A detailed sedimentological, mineralogical and petrological study was performed. The consolidated material consists to fine-grained sandstone with incipient parallel lamination. Kaolinite associated with iron oxides/hydroxides is organized in thin coatings, sometimes forming meniscus and bridges. The heavy mineral assembly of the sandstone is similar to those found in the beach ridges friable samples. The sandstone granulometry increases from east to west along the canal margins and the same pattern is observed in the adjacent beach ridges. We suggest that pedogenic processes acted intensively on Canal margins after its opening, causing mechanical infiltration and translocation of clay minerals, promoting differentiated consolidation of sediments only in that part that was deepened during the excavation. The anthropic action altered the local physiography by exposing the sediments of beach ridges. Therefore, this sandstone should be considered a geological heritage due to its unique occurrence, touristic, historical, scientific and educational value. Universidade Federal do Rio de Janeiro2023-01-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufrj.br/index.php/aigeo/article/view/4938310.11137/1982-3908_2023_46_49383Anuário do Instituto de Geociências; v. 46 (2023)Anuário do Instituto de Geociências; Vol. 46 (2023)1982-39080101-9759reponame:Anuário do Instituto de Geociências (Online)instname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJenghttps://revistas.ufrj.br/index.php/aigeo/article/view/49383/pdfCopyright (c) 2023 Anuário do Instituto de Geociênciasinfo:eu-repo/semantics/openAccessPereira, Tainá PaivaLeite Mansur, KátiaGoulart Rodrigues, Amanda2023-01-23T13:27:57Zoai:ojs.pkp.sfu.ca:article/49383Revistahttps://revistas.ufrj.br/index.php/aigeo/indexPUBhttps://revistas.ufrj.br/index.php/aigeo/oaianuario@igeo.ufrj.br||1982-39080101-9759opendoar:2023-01-23T13:27:57Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
title Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
spellingShingle Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
Pereira, Tainá Paiva
Anthropocene
Beach ridges
Geological heritage
title_short Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
title_full Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
title_fullStr Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
title_full_unstemmed Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
title_sort Anthropic Influence and Heritage Value of the Quaternary Deposits of Rio de Janeiro, Brazil
author Pereira, Tainá Paiva
author_facet Pereira, Tainá Paiva
Leite Mansur, Kátia
Goulart Rodrigues, Amanda
author_role author
author2 Leite Mansur, Kátia
Goulart Rodrigues, Amanda
author2_role author
author
dc.contributor.author.fl_str_mv Pereira, Tainá Paiva
Leite Mansur, Kátia
Goulart Rodrigues, Amanda
dc.subject.por.fl_str_mv Anthropocene
Beach ridges
Geological heritage
topic Anthropocene
Beach ridges
Geological heritage
description This study discusses the cause of local lithification in sediments from quaternary beach ridges of Paraíba do Sul Deltaic Complex (Rio de Janeiro, Brazil) and its application to the concept of geological heritage. These beach ridges were excavated to construct the Campos - Macaé Canal, opened in the 19th century predominantly by slave labor. A detailed sedimentological, mineralogical and petrological study was performed. The consolidated material consists to fine-grained sandstone with incipient parallel lamination. Kaolinite associated with iron oxides/hydroxides is organized in thin coatings, sometimes forming meniscus and bridges. The heavy mineral assembly of the sandstone is similar to those found in the beach ridges friable samples. The sandstone granulometry increases from east to west along the canal margins and the same pattern is observed in the adjacent beach ridges. We suggest that pedogenic processes acted intensively on Canal margins after its opening, causing mechanical infiltration and translocation of clay minerals, promoting differentiated consolidation of sediments only in that part that was deepened during the excavation. The anthropic action altered the local physiography by exposing the sediments of beach ridges. Therefore, this sandstone should be considered a geological heritage due to its unique occurrence, touristic, historical, scientific and educational value. 
publishDate 2023
dc.date.none.fl_str_mv 2023-01-18
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/49383
10.11137/1982-3908_2023_46_49383
url https://revistas.ufrj.br/index.php/aigeo/article/view/49383
identifier_str_mv 10.11137/1982-3908_2023_46_49383
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/49383/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2023 Anuário do Instituto de Geociências
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Anuário do Instituto de Geociências
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; v. 46 (2023)
Anuário do Instituto de Geociências; Vol. 46 (2023)
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)
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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)
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