Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)

The Columbrets Basin is the largest Mesozoic rift basin of the Valencia Trough in the Western Mediterranean. The analysis of a seismic- reflection survey makes it possi-ble to reconstruct the tectonic fabric underlying the sedimentary basin, including the structure of the top of the lower crust and...

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Detalhes bibliográficos
Autores: Ramos, Adrià, Pedrera, Antonio, García-Senz, Jesús, López-Mir, Berta, Salas, Ramon
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/26663
Acesso em linha:https://hdl.handle.net/10115/26663
Access Level:acceso abierto
Palavra-chave:Columbrets Basin
ductile deformation
extensional tectonics
mid-lower crustal thinning
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spelling Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)Ramos, AdriàPedrera, AntonioGarcía-Senz, JesúsLópez-Mir, BertaSalas, RamonColumbrets Basinductile deformationextensional tectonicsmid-lower crustal thinningThe Columbrets Basin is the largest Mesozoic rift basin of the Valencia Trough in the Western Mediterranean. The analysis of a seismic- reflection survey makes it possi-ble to reconstruct the tectonic fabric underlying the sedimentary basin, including the structure of the top of the lower crust and the Moho. It is proposed that the ductile deformation of the mid- lower crust was the main mechanism controlling the basin geometry, with the radial flow of mid- lower crust coeval with the reactivation of two large- offset SW-dipping normal faults, inherited from the precursor Permian–Triassic rifting. Mid- lower crustal necking occurred below the major depocenters, immedi-ately before hyperextension. Our results provide new insight into the formation of circular-shaped basins and the evolution of depth-dependent extensional processes during rifting.Terra Nova202320232023info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/26663reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAttribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/266632026-06-24T12:48:17Z
dc.title.none.fl_str_mv Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
title Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
spellingShingle Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
Ramos, Adrià
Columbrets Basin
ductile deformation
extensional tectonics
mid-lower crustal thinning
title_short Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
title_full Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
title_fullStr Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
title_full_unstemmed Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
title_sort Seismic evidence for ductile necking of the mid-lower crust beneath the Columbrets Basin (Western Mediterranean)
dc.creator.none.fl_str_mv Ramos, Adrià
Pedrera, Antonio
García-Senz, Jesús
López-Mir, Berta
Salas, Ramon
author Ramos, Adrià
author_facet Ramos, Adrià
Pedrera, Antonio
García-Senz, Jesús
López-Mir, Berta
Salas, Ramon
author_role author
author2 Pedrera, Antonio
García-Senz, Jesús
López-Mir, Berta
Salas, Ramon
author2_role author
author
author
author
dc.subject.none.fl_str_mv Columbrets Basin
ductile deformation
extensional tectonics
mid-lower crustal thinning
topic Columbrets Basin
ductile deformation
extensional tectonics
mid-lower crustal thinning
description The Columbrets Basin is the largest Mesozoic rift basin of the Valencia Trough in the Western Mediterranean. The analysis of a seismic- reflection survey makes it possi-ble to reconstruct the tectonic fabric underlying the sedimentary basin, including the structure of the top of the lower crust and the Moho. It is proposed that the ductile deformation of the mid- lower crust was the main mechanism controlling the basin geometry, with the radial flow of mid- lower crust coeval with the reactivation of two large- offset SW-dipping normal faults, inherited from the precursor Permian–Triassic rifting. Mid- lower crustal necking occurred below the major depocenters, immedi-ately before hyperextension. Our results provide new insight into the formation of circular-shaped basins and the evolution of depth-dependent extensional processes during rifting.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10115/26663
url https://hdl.handle.net/10115/26663
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
https://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 Terra Nova
publisher.none.fl_str_mv Terra Nova
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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