Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil

Detalhes bibliográficos
Autor(a) principal: Salamuni, Eduardo
Data de Publicação: 2021
Outros Autores: da Silva, Clauzionor Lima, do Nascimento, Edenilson Roberto, dos Santos, Jéssica Miranda, Peyerl, William Rudolf Lopes, Gimenez, Viviane Barbosa [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/2317-4889202120200080
http://hdl.handle.net/11449/222933
Resumo: The hypothesis that geomorphometric parameters and structural-geological features are diagnostic of reactivation of the Blumenau-Soledade Lineament in central-western Santa Catarina, Brazil was tested by confronting data on asymmetry, elongation, morphological markers, drainage patterns, and river anomalies of the Pelotinhas catchment and structural data for the Serra Geral Group (Paraná Basin). The results indicate reactivation of the lineament as a dextral strike-slip fault, as the cause of an associated morphostructure characterized by an escarpment along the left bank of the river as well as being responsible for catchment asymmetry and morphometric anomalies. Although fault data indicate paleostress correlatable to regional tectonic events described in the literature, we propose that the earliest paleostress pulse possibly was active during the Paleocene-Eocene transition, with σ1 oriented NE-SW and σ3 NW-SE. In the early Paleogene, the stress system evolved as an extensional pulse. During the Paleogene and early Neogene, the paleostress field rotated with reorientation of the σ1 axis between NNW and NNE. The current tectonic regime was established between the Late Pleistocene and Holocene, with compressional stress σ1 oriented approximately WNW-ESE and σ3 NNE-SSW, as it generally occurs in the South American Plate.
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spelling Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern BrazilMorphotectonicsPaleostressTectonic pulsesThe hypothesis that geomorphometric parameters and structural-geological features are diagnostic of reactivation of the Blumenau-Soledade Lineament in central-western Santa Catarina, Brazil was tested by confronting data on asymmetry, elongation, morphological markers, drainage patterns, and river anomalies of the Pelotinhas catchment and structural data for the Serra Geral Group (Paraná Basin). The results indicate reactivation of the lineament as a dextral strike-slip fault, as the cause of an associated morphostructure characterized by an escarpment along the left bank of the river as well as being responsible for catchment asymmetry and morphometric anomalies. Although fault data indicate paleostress correlatable to regional tectonic events described in the literature, we propose that the earliest paleostress pulse possibly was active during the Paleocene-Eocene transition, with σ1 oriented NE-SW and σ3 NW-SE. In the early Paleogene, the stress system evolved as an extensional pulse. During the Paleogene and early Neogene, the paleostress field rotated with reorientation of the σ1 axis between NNW and NNE. The current tectonic regime was established between the Late Pleistocene and Holocene, with compressional stress σ1 oriented approximately WNW-ESE and σ3 NNE-SSW, as it generally occurs in the South American Plate.Universidade Federal do ParanáUniversidade Federal Rural do Rio de JaneiroUniversidade Estadual Paulista “Júlio de Mesquita Filho”Universidade Estadual Paulista “Júlio de Mesquita Filho”Universidade Federal do Paraná (UFPR)Universidade Federal Rural do Rio de JaneiroUniversidade Estadual Paulista (UNESP)Salamuni, Eduardoda Silva, Clauzionor Limado Nascimento, Edenilson Robertodos Santos, Jéssica MirandaPeyerl, William Rudolf LopesGimenez, Viviane Barbosa [UNESP]2022-04-28T19:47:40Z2022-04-28T19:47:40Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1590/2317-4889202120200080Brazilian Journal of Geology, v. 51, n. 3, 2021.2317-46922317-4889http://hdl.handle.net/11449/22293310.1590/2317-48892021202000802-s2.0-85119995443Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Geologyinfo:eu-repo/semantics/openAccess2022-04-28T19:47:40Zoai:repositorio.unesp.br:11449/222933Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:15:24.631563Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
title Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
spellingShingle Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
Salamuni, Eduardo
Morphotectonics
Paleostress
Tectonic pulses
title_short Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
title_full Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
title_fullStr Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
title_full_unstemmed Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
title_sort Morphometric and structural diagnosis of fault reactivation in the Cenozoic: A case study of the Blumenau-Soledade Lineament in southern Brazil
author Salamuni, Eduardo
author_facet Salamuni, Eduardo
da Silva, Clauzionor Lima
do Nascimento, Edenilson Roberto
dos Santos, Jéssica Miranda
Peyerl, William Rudolf Lopes
Gimenez, Viviane Barbosa [UNESP]
author_role author
author2 da Silva, Clauzionor Lima
do Nascimento, Edenilson Roberto
dos Santos, Jéssica Miranda
Peyerl, William Rudolf Lopes
Gimenez, Viviane Barbosa [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal do Paraná (UFPR)
Universidade Federal Rural do Rio de Janeiro
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Salamuni, Eduardo
da Silva, Clauzionor Lima
do Nascimento, Edenilson Roberto
dos Santos, Jéssica Miranda
Peyerl, William Rudolf Lopes
Gimenez, Viviane Barbosa [UNESP]
dc.subject.por.fl_str_mv Morphotectonics
Paleostress
Tectonic pulses
topic Morphotectonics
Paleostress
Tectonic pulses
description The hypothesis that geomorphometric parameters and structural-geological features are diagnostic of reactivation of the Blumenau-Soledade Lineament in central-western Santa Catarina, Brazil was tested by confronting data on asymmetry, elongation, morphological markers, drainage patterns, and river anomalies of the Pelotinhas catchment and structural data for the Serra Geral Group (Paraná Basin). The results indicate reactivation of the lineament as a dextral strike-slip fault, as the cause of an associated morphostructure characterized by an escarpment along the left bank of the river as well as being responsible for catchment asymmetry and morphometric anomalies. Although fault data indicate paleostress correlatable to regional tectonic events described in the literature, we propose that the earliest paleostress pulse possibly was active during the Paleocene-Eocene transition, with σ1 oriented NE-SW and σ3 NW-SE. In the early Paleogene, the stress system evolved as an extensional pulse. During the Paleogene and early Neogene, the paleostress field rotated with reorientation of the σ1 axis between NNW and NNE. The current tectonic regime was established between the Late Pleistocene and Holocene, with compressional stress σ1 oriented approximately WNW-ESE and σ3 NNE-SSW, as it generally occurs in the South American Plate.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
2022-04-28T19:47:40Z
2022-04-28T19:47:40Z
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/10.1590/2317-4889202120200080
Brazilian Journal of Geology, v. 51, n. 3, 2021.
2317-4692
2317-4889
http://hdl.handle.net/11449/222933
10.1590/2317-4889202120200080
2-s2.0-85119995443
url http://dx.doi.org/10.1590/2317-4889202120200080
http://hdl.handle.net/11449/222933
identifier_str_mv Brazilian Journal of Geology, v. 51, n. 3, 2021.
2317-4692
2317-4889
10.1590/2317-4889202120200080
2-s2.0-85119995443
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Geology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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
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