Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional

A combined structural and AMS analysis is made in Upper Cretaceous rocks from the periclinal closure of the Biscay Synclinorium (Basque-Cantabrian basin). Fieldwork has led to the recognition of a broad band with a pervasive foliation along the NE limb. The magnetic fabrics are grouped into two zone...

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Detalles Bibliográficos
Autores: Vegas, Néstor, Aranguren, A., Rodríguez, Lidia, Cuevas, Julia, Tubía, José María, Esteban, José Julián
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:español
OAI Identifier:oai:ariasmontano.uhu.es:10272/15139
Acceso en línea:http://hdl.handle.net/10272/15139
Access Level:acceso abierto
Palabra clave:Fábrica magnética
Sinclinorio de Bizkaia
Cuenca Vasco-Cantábrica
Zona de cizalla
Magnetic fabrics
Biscay Synclinorium
Basque-Cantabrian basin
Shear zone
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spelling Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regionalMagnetic fabric analysis of the Biscay Synclinorium: Implications for the regional tectonicsVegas, NéstorAranguren, A.Rodríguez, LidiaCuevas, JuliaTubía, José MaríaEsteban, José JuliánFábrica magnéticaSinclinorio de BizkaiaCuenca Vasco-CantábricaZona de cizallaMagnetic fabricsBiscay SynclinoriumBasque-Cantabrian basinShear zoneA combined structural and AMS analysis is made in Upper Cretaceous rocks from the periclinal closure of the Biscay Synclinorium (Basque-Cantabrian basin). Fieldwork has led to the recognition of a broad band with a pervasive foliation along the NE limb. The magnetic fabrics are grouped into two zones: 1) the samples from the core record magnetic lineations coincident with the SO/S 1 intersection lineation that are parallel to the synclinorium axis, and 2) the magnetic lineations from the NE limb are orthogonal to the synclinorium axis and concentrate around the down-dip direction of S 1. This partitioning of magnetic fabrics suggests in creasing deformation from the core, characterised by mixed (sedimentary and tectonic) magnetic fabrics, to the northeastern limb, where tectonic fabrics prevail. Field data and magnetic fabrics are consistent with an unusually high deformation in the NE limb of the synclinorium, which could be associated with a hitherto unknown shear zone at regional scale. A top to the NE movement of the shear zone would explain the trend of the magnetic lineation in the northeastern limb of the Biscay SynclinoriumSociedad Geológica de España20172017-01-0120172017-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/15139reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/151392026-06-02T14:58:11Z
dc.title.none.fl_str_mv Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
Magnetic fabric analysis of the Biscay Synclinorium: Implications for the regional tectonics
title Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
spellingShingle Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
Vegas, Néstor
Fábrica magnética
Sinclinorio de Bizkaia
Cuenca Vasco-Cantábrica
Zona de cizalla
Magnetic fabrics
Biscay Synclinorium
Basque-Cantabrian basin
Shear zone
title_short Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
title_full Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
title_fullStr Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
title_full_unstemmed Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
title_sort Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
dc.creator.none.fl_str_mv Vegas, Néstor
Aranguren, A.
Rodríguez, Lidia
Cuevas, Julia
Tubía, José María
Esteban, José Julián
author Vegas, Néstor
author_facet Vegas, Néstor
Aranguren, A.
Rodríguez, Lidia
Cuevas, Julia
Tubía, José María
Esteban, José Julián
author_role author
author2 Aranguren, A.
Rodríguez, Lidia
Cuevas, Julia
Tubía, José María
Esteban, José Julián
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Fábrica magnética
Sinclinorio de Bizkaia
Cuenca Vasco-Cantábrica
Zona de cizalla
Magnetic fabrics
Biscay Synclinorium
Basque-Cantabrian basin
Shear zone
topic Fábrica magnética
Sinclinorio de Bizkaia
Cuenca Vasco-Cantábrica
Zona de cizalla
Magnetic fabrics
Biscay Synclinorium
Basque-Cantabrian basin
Shear zone
description A combined structural and AMS analysis is made in Upper Cretaceous rocks from the periclinal closure of the Biscay Synclinorium (Basque-Cantabrian basin). Fieldwork has led to the recognition of a broad band with a pervasive foliation along the NE limb. The magnetic fabrics are grouped into two zones: 1) the samples from the core record magnetic lineations coincident with the SO/S 1 intersection lineation that are parallel to the synclinorium axis, and 2) the magnetic lineations from the NE limb are orthogonal to the synclinorium axis and concentrate around the down-dip direction of S 1. This partitioning of magnetic fabrics suggests in creasing deformation from the core, characterised by mixed (sedimentary and tectonic) magnetic fabrics, to the northeastern limb, where tectonic fabrics prevail. Field data and magnetic fabrics are consistent with an unusually high deformation in the NE limb of the synclinorium, which could be associated with a hitherto unknown shear zone at regional scale. A top to the NE movement of the shear zone would explain the trend of the magnetic lineation in the northeastern limb of the Biscay Synclinorium
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01
2017
2017-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/15139
url http://hdl.handle.net/10272/15139
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
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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