Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)

Signs of recent tectonic activity are found at the Extremadura sector of Alentejo-Plasencia fault. This fault was active during the alpine compressional period as a sinistral strike-slip fault at the foreland of a collisional zone and presents sorne activity from the Miocene to the Quaternary. Upper...

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Detalles Bibliográficos
Autores: Villamor Manero, Patricia, Capote Del Villar, Ramón, Tsige Beyene, Meaza
Tipo de recurso: artículo
Fecha de publicación:1996
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/102253
Acceso en línea:https://hdl.handle.net/20.500.14352/102253
Access Level:acceso abierto
Palabra clave:551.24
Alentejo-Plasencia fault
Neotectonic activity
Alluvial terraces
Raña
Slip rate
Paleoseismicity
Geodinámica
2507 Geofísica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/102253
network_acronym_str ES
network_name_str España
repository_id_str
spelling Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)Villamor Manero, PatriciaCapote Del Villar, RamónTsige Beyene, Meaza551.24Alentejo-Plasencia faultNeotectonic activityAlluvial terracesRañaSlip ratePaleoseismicityGeodinámica2507 GeofísicaSigns of recent tectonic activity are found at the Extremadura sector of Alentejo-Plasencia fault. This fault was active during the alpine compressional period as a sinistral strike-slip fault at the foreland of a collisional zone and presents sorne activity from the Miocene to the Quaternary. Upper «Raña» deposits of Early Villafranquian age, present an around-2-meter-vertical-displacement at the north border of Alburquerque granitic massif. Clase to this point old fluvial terraces of unknown age are folded and faulted, and low terraces (3 m above present river course) are jointed. In the tertiary Cañaveral pull-apart basin, at the Alcantara reservoir border, the fault disrupts a Tagus river fluvial terrace, which lies 80 m above the river course and has a probable Middle Pleistocene age. All these observations imply a vertical displacement which could be related to a slip rate less than 0.001 mm/year. lf this fault is compared with other active faults of the Hesperian Massif, such as the Bragança-Manteigas one, it becomes clear that Alentejo-Plasencia fault is less active. There are though paleoseismicity structures associated to the Alentejo-Plasencia fault, such as liquefaction features.Sociedad Geológica de EspañaSociedad Geológica de EspañaUniversidad Complutense de Madrid19961996-01-0119961996-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/102253reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1022532026-06-02T12:44:21Z
dc.title.none.fl_str_mv Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
title Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
spellingShingle Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
Villamor Manero, Patricia
551.24
Alentejo-Plasencia fault
Neotectonic activity
Alluvial terraces
Raña
Slip rate
Paleoseismicity
Geodinámica
2507 Geofísica
title_short Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
title_full Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
title_fullStr Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
title_full_unstemmed Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
title_sort Actividad neotectónica de la Falla de Alentejo-Plasencia en Extremadura (Macizo Hespérico)
dc.creator.none.fl_str_mv Villamor Manero, Patricia
Capote Del Villar, Ramón
Tsige Beyene, Meaza
author Villamor Manero, Patricia
author_facet Villamor Manero, Patricia
Capote Del Villar, Ramón
Tsige Beyene, Meaza
author_role author
author2 Capote Del Villar, Ramón
Tsige Beyene, Meaza
author2_role author
author
dc.contributor.none.fl_str_mv Sociedad Geológica de España
Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 551.24
Alentejo-Plasencia fault
Neotectonic activity
Alluvial terraces
Raña
Slip rate
Paleoseismicity
Geodinámica
2507 Geofísica
topic 551.24
Alentejo-Plasencia fault
Neotectonic activity
Alluvial terraces
Raña
Slip rate
Paleoseismicity
Geodinámica
2507 Geofísica
description Signs of recent tectonic activity are found at the Extremadura sector of Alentejo-Plasencia fault. This fault was active during the alpine compressional period as a sinistral strike-slip fault at the foreland of a collisional zone and presents sorne activity from the Miocene to the Quaternary. Upper «Raña» deposits of Early Villafranquian age, present an around-2-meter-vertical-displacement at the north border of Alburquerque granitic massif. Clase to this point old fluvial terraces of unknown age are folded and faulted, and low terraces (3 m above present river course) are jointed. In the tertiary Cañaveral pull-apart basin, at the Alcantara reservoir border, the fault disrupts a Tagus river fluvial terrace, which lies 80 m above the river course and has a probable Middle Pleistocene age. All these observations imply a vertical displacement which could be related to a slip rate less than 0.001 mm/year. lf this fault is compared with other active faults of the Hesperian Massif, such as the Bragança-Manteigas one, it becomes clear that Alentejo-Plasencia fault is less active. There are though paleoseismicity structures associated to the Alentejo-Plasencia fault, such as liquefaction features.
publishDate 1996
dc.date.none.fl_str_mv 1996
1996-01-01
1996
1996-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/102253
url https://hdl.handle.net/20.500.14352/102253
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Sociedad Geológica de España
publisher.none.fl_str_mv Sociedad Geológica de España
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869419493155930112
score 15,300719

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