Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley

Detalhes bibliográficos
Autor(a) principal: Morais, Eduardo S. [UNESP]
Data de Publicação: 2020
Outros Autores: Cremon, Edipo H., Santos, Manoel L., Rocha, Paulo C. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.jsames.2020.102664
http://hdl.handle.net/11449/197123
Resumo: This study investigated the lower terrace and floodplain formation in the lower Peixe River in southeastern Brazil. Morphologic, sedimentologic and geochronologic analyses in this meandering tributary of the Parana River allowed an integrated approach to reconstructing fluvial changes from the late Pleistocene. Geomorphic units were mapped with Global Navigation Satellite System, satellite imagery and digital surface model interpretation, and sedimentary facies and radiocarbon (C-14) dating analyses were performed on palaeochannels and backswamps. The palaeochannels on the lower terrace indicate fluvial activity during the late Pleistocene, torrential flows during the Northgrippian stage, and abandonments during the Meghalayan stage. The back-swamp evaluated on the lower terrace documents the depositional change from oxbow lake abandonment in the Greenlandian stage to tributary flow, which passes flows over the palaeodrainage during flood episodes, while another back-swamp in the floodplain highlights an intense morphodynamic removal of terrace deposits. An incisive phase during the Meghalayan stage is the main event responsible for establishing the current fluvial landscape, which promotes the formation of the lower terrace and floodplain. Local variations (i.e., tributary flows) in the degradation process on the terraces results in a topographical and morphological contrast between corresponding geochronologic units. Therefore, adjustment stages in the fluvial relief drive wetland variability in the fill terraces, which are fundamental to understanding degradational processes and formulating environmental management policies.
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spelling Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valleyTerraceWetlandFloodplainPeixe riverBrazilThis study investigated the lower terrace and floodplain formation in the lower Peixe River in southeastern Brazil. Morphologic, sedimentologic and geochronologic analyses in this meandering tributary of the Parana River allowed an integrated approach to reconstructing fluvial changes from the late Pleistocene. Geomorphic units were mapped with Global Navigation Satellite System, satellite imagery and digital surface model interpretation, and sedimentary facies and radiocarbon (C-14) dating analyses were performed on palaeochannels and backswamps. The palaeochannels on the lower terrace indicate fluvial activity during the late Pleistocene, torrential flows during the Northgrippian stage, and abandonments during the Meghalayan stage. The back-swamp evaluated on the lower terrace documents the depositional change from oxbow lake abandonment in the Greenlandian stage to tributary flow, which passes flows over the palaeodrainage during flood episodes, while another back-swamp in the floodplain highlights an intense morphodynamic removal of terrace deposits. An incisive phase during the Meghalayan stage is the main event responsible for establishing the current fluvial landscape, which promotes the formation of the lower terrace and floodplain. Local variations (i.e., tributary flows) in the degradation process on the terraces results in a topographical and morphological contrast between corresponding geochronologic units. Therefore, adjustment stages in the fluvial relief drive wetland variability in the fill terraces, which are fundamental to understanding degradational processes and formulating environmental management policies.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Maringa, Dept Geog, Multidisciplinary Studies Grp Environm, Maringa, Parana, BrazilFed Inst Educ Sci & Technol Goias, Goiania, Go, BrazilSao Paulo State Univ, Postgrad Program Geog, Presidente Prudente, SP, BrazilSao Paulo State Univ, Postgrad Program Geog, Presidente Prudente, SP, BrazilFAPESP: 2011/11208-6Elsevier B.V.Universidade Estadual de Maringá (UEM)Fed Inst Educ Sci & Technol GoiasUniversidade Estadual Paulista (Unesp)Morais, Eduardo S. [UNESP]Cremon, Edipo H.Santos, Manoel L.Rocha, Paulo C. [UNESP]2020-12-10T20:06:53Z2020-12-10T20:06:53Z2020-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article11http://dx.doi.org/10.1016/j.jsames.2020.102664Journal Of South American Earth Sciences. Oxford: Pergamon-elsevier Science Ltd, v. 102, 11 p., 2020.0895-9811http://hdl.handle.net/11449/19712310.1016/j.jsames.2020.102664WOS:000553997400022Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of South American Earth Sciencesinfo:eu-repo/semantics/openAccess2024-06-19T13:48:15Zoai:repositorio.unesp.br:11449/197123Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:26:05.388960Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
title Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
spellingShingle Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
Morais, Eduardo S. [UNESP]
Terrace
Wetland
Floodplain
Peixe river
Brazil
title_short Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
title_full Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
title_fullStr Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
title_full_unstemmed Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
title_sort Late Pleistocene-Holocene landscape evolution in the lower Peixe river, Brazil: A meandering river valley
author Morais, Eduardo S. [UNESP]
author_facet Morais, Eduardo S. [UNESP]
Cremon, Edipo H.
Santos, Manoel L.
Rocha, Paulo C. [UNESP]
author_role author
author2 Cremon, Edipo H.
Santos, Manoel L.
Rocha, Paulo C. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Maringá (UEM)
Fed Inst Educ Sci & Technol Goias
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Morais, Eduardo S. [UNESP]
Cremon, Edipo H.
Santos, Manoel L.
Rocha, Paulo C. [UNESP]
dc.subject.por.fl_str_mv Terrace
Wetland
Floodplain
Peixe river
Brazil
topic Terrace
Wetland
Floodplain
Peixe river
Brazil
description This study investigated the lower terrace and floodplain formation in the lower Peixe River in southeastern Brazil. Morphologic, sedimentologic and geochronologic analyses in this meandering tributary of the Parana River allowed an integrated approach to reconstructing fluvial changes from the late Pleistocene. Geomorphic units were mapped with Global Navigation Satellite System, satellite imagery and digital surface model interpretation, and sedimentary facies and radiocarbon (C-14) dating analyses were performed on palaeochannels and backswamps. The palaeochannels on the lower terrace indicate fluvial activity during the late Pleistocene, torrential flows during the Northgrippian stage, and abandonments during the Meghalayan stage. The back-swamp evaluated on the lower terrace documents the depositional change from oxbow lake abandonment in the Greenlandian stage to tributary flow, which passes flows over the palaeodrainage during flood episodes, while another back-swamp in the floodplain highlights an intense morphodynamic removal of terrace deposits. An incisive phase during the Meghalayan stage is the main event responsible for establishing the current fluvial landscape, which promotes the formation of the lower terrace and floodplain. Local variations (i.e., tributary flows) in the degradation process on the terraces results in a topographical and morphological contrast between corresponding geochronologic units. Therefore, adjustment stages in the fluvial relief drive wetland variability in the fill terraces, which are fundamental to understanding degradational processes and formulating environmental management policies.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-10T20:06:53Z
2020-12-10T20:06:53Z
2020-10-01
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 http://dx.doi.org/10.1016/j.jsames.2020.102664
Journal Of South American Earth Sciences. Oxford: Pergamon-elsevier Science Ltd, v. 102, 11 p., 2020.
0895-9811
http://hdl.handle.net/11449/197123
10.1016/j.jsames.2020.102664
WOS:000553997400022
url http://dx.doi.org/10.1016/j.jsames.2020.102664
http://hdl.handle.net/11449/197123
identifier_str_mv Journal Of South American Earth Sciences. Oxford: Pergamon-elsevier Science Ltd, v. 102, 11 p., 2020.
0895-9811
10.1016/j.jsames.2020.102664
WOS:000553997400022
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal Of South American Earth Sciences
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 11
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Web of Science
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
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