Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications

The Iberian microcontinent and its connected oceanic crust are affected by deformations related to the Eurasian-African plate boundary. Active stress inversions from populations of moment tensor focal mechanisms have been performed around and inside the Iberian peninsula, using a total of 213 moment...

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Autores: Vicente Muñoz, Gerardo De, Cloetingh, Sierd, Muñoz Martín, Alfonso, Olaiz Campos, Antonio José, Stich, Daniel, Vegas Martínez, Ramón, Galindo-Zaldívar, Jesus, Fernández Lozano, Javier
Tipo de recurso: artículo
Fecha de publicación:2008
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/52862
Acceso en línea:https://hdl.handle.net/20.500.14352/52862
Access Level:acceso abierto
Palabra clave:Active Tectonics
Seismicity
Iberia
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
2507 Geofísica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/52862
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repository_id_str
spelling Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implicationsVicente Muñoz, Gerardo DeCloetingh, SierdMuñoz Martín, AlfonsoOlaiz Campos, Antonio JoséStich, DanielVegas Martínez, RamónGalindo-Zaldívar, JesusFernández Lozano, JavierActive TectonicsSeismicityIberiaSismología (Geología)Geodinámica2507.05 Sismología y Prospección Sísmica2507 GeofísicaThe Iberian microcontinent and its connected oceanic crust are affected by deformations related to the Eurasian-African plate boundary. Active stress inversions from populations of moment tensor focal mechanisms have been performed around and inside the Iberian peninsula, using a total of 213 moment tensor estimates. Main results are: 1) The tensorial solutions show better consistency and lower misfits compared to those obtained previously from first P arrival focal mechanisms. 2) Along the Eurasia- Africa western boundary, the type of active stresses progressively changes easternwards from triaxial extension to uniaxial compression along the Terceira Ridge, the Gloria Fault zone and the Gulf of Cadiz. 3) In the Betics-Alboran-Rif zone, uniaxial extension predominates with Shmax N155ºE trending. 4) In N Algeria, uniaxial compression reappears. 5) The Iberian foreland is currently under strike-slip to uniaxial extension tensorial conditions.Universidad Complutense de Madrid20082008-02-0720082008-02-07journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/52862reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/528622026-06-02T12:44:21Z
dc.title.none.fl_str_mv Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
title Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
spellingShingle Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
Vicente Muñoz, Gerardo De
Active Tectonics
Seismicity
Iberia
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
2507 Geofísica
title_short Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
title_full Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
title_fullStr Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
title_full_unstemmed Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
title_sort Inversion of moment tensor focal mechanisms for active stresses around the Microcontinent Iberia: Tectonic implications
dc.creator.none.fl_str_mv Vicente Muñoz, Gerardo De
Cloetingh, Sierd
Muñoz Martín, Alfonso
Olaiz Campos, Antonio José
Stich, Daniel
Vegas Martínez, Ramón
Galindo-Zaldívar, Jesus
Fernández Lozano, Javier
author Vicente Muñoz, Gerardo De
author_facet Vicente Muñoz, Gerardo De
Cloetingh, Sierd
Muñoz Martín, Alfonso
Olaiz Campos, Antonio José
Stich, Daniel
Vegas Martínez, Ramón
Galindo-Zaldívar, Jesus
Fernández Lozano, Javier
author_role author
author2 Cloetingh, Sierd
Muñoz Martín, Alfonso
Olaiz Campos, Antonio José
Stich, Daniel
Vegas Martínez, Ramón
Galindo-Zaldívar, Jesus
Fernández Lozano, Javier
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv Active Tectonics
Seismicity
Iberia
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
2507 Geofísica
topic Active Tectonics
Seismicity
Iberia
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
2507 Geofísica
description The Iberian microcontinent and its connected oceanic crust are affected by deformations related to the Eurasian-African plate boundary. Active stress inversions from populations of moment tensor focal mechanisms have been performed around and inside the Iberian peninsula, using a total of 213 moment tensor estimates. Main results are: 1) The tensorial solutions show better consistency and lower misfits compared to those obtained previously from first P arrival focal mechanisms. 2) Along the Eurasia- Africa western boundary, the type of active stresses progressively changes easternwards from triaxial extension to uniaxial compression along the Terceira Ridge, the Gloria Fault zone and the Gulf of Cadiz. 3) In the Betics-Alboran-Rif zone, uniaxial extension predominates with Shmax N155ºE trending. 4) In N Algeria, uniaxial compression reappears. 5) The Iberian foreland is currently under strike-slip to uniaxial extension tensorial conditions.
publishDate 2008
dc.date.none.fl_str_mv 2008
2008-02-07
2008
2008-02-07
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 https://hdl.handle.net/20.500.14352/52862
url https://hdl.handle.net/20.500.14352/52862
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
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
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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
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score 15,300724

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