Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)

[EN] Information gathered from multibeam echosounders and seismic profiles in the Gulf of Cadiz show several morphological reliefs having circular to sub-circular shape having been associated to mud volcanoes. The distribution of mud volcanoes in this area can be related to fluids escapes (gases and...

Descripción completa

Detalles Bibliográficos
Autores: Maestro González, Adolfo, Bohoyo, Fernando, Corral, Rubén
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/375566
Acceso en línea:http://hdl.handle.net/10261/375566
https://api.elsevier.com/content/abstract/scopus_id/85071918996
Access Level:acceso abierto
Palabra clave:Volcanic alignments
Elongate mud volcanoes
Field stress
Gulf of Cadiz
Maximum horizontal stress
id ES_d76ecc220b2f11eda05a59d29eb2db55
oai_identifier_str oai:digital.csic.es:10261/375566
network_acronym_str ES
network_name_str España
repository_id_str
spelling Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)Maestro González, AdolfoBohoyo, FernandoCorral, RubénVolcanic alignmentsElongate mud volcanoesField stressGulf of CadizMaximum horizontal stress[EN] Information gathered from multibeam echosounders and seismic profiles in the Gulf of Cadiz show several morphological reliefs having circular to sub-circular shape having been associated to mud volcanoes. The distribution of mud volcanoes in this area can be related to fluids escapes (gases and water), comprising mud and rock blocks from a pressurized deep unit through structural discontinuities of the upper crust. They are located in a complex tecto-sedimentary wedge named Accretionary Wedge of the Gulf of Cadiz formed by African-Eurasian convergence and the westward Rifean-Gibraltar-Betic Arc. They are most frequent in four sectors: the Moroccan, the Guadalquivir Diapiric Ridge, the TASYO and Deep South Portuguese fields. They differ in size, shape, and presence of the mud flows. Statistical analysis of the regional-scale distribution and shape of the mud volcanoes provides new information about present-day stress filed. The volcano strain indicators show a robust recent direction of two main regional maximum horizontal stress SH striking N132E and N149E to N160E, as well as a three secondary stress field with a N050E, N090E and N175E to N045E trends. The analysis of mud volcano alignments indicates two main trends, N125E and N150E, and two secondary orientations, N070E and N095E. These results are congruent with the stress field established from focal mechanisms, borehole breakouts and mesofault population data.This research was funded by the CONTOURIBER Project (CTM2008-06399-C04-01/MAR) and the SCORE Project (CGL2016-80445-R, AEI/FEDER, UE).Peer reviewedElsevierMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)European CommissionMaestro González, Adolfo [0000-0002-7474-725X]Bohoyo, Fernando [0000-0002-1044-8816]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://hdl.handle.net/10261/375566https://api.elsevier.com/content/abstract/scopus_id/85071918996reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//CTM2008-06399-C04-01info:eu-repo/grantAgreement/AEI//CGL2016-80445-Rhttps://doi.org/10.1016/j.jog.2019.101653Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3755662026-05-22T06:33:51Z
dc.title.none.fl_str_mv Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
title Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
spellingShingle Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
Maestro González, Adolfo
Volcanic alignments
Elongate mud volcanoes
Field stress
Gulf of Cadiz
Maximum horizontal stress
title_short Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
title_full Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
title_fullStr Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
title_full_unstemmed Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
title_sort Recent deformational state from morphological analysis of mud volcanoes in the Gulf of Cadiz (southwestern part of the Iberian Atlantic Margin)
dc.creator.none.fl_str_mv Maestro González, Adolfo
Bohoyo, Fernando
Corral, Rubén
author Maestro González, Adolfo
author_facet Maestro González, Adolfo
Bohoyo, Fernando
Corral, Rubén
author_role author
author2 Bohoyo, Fernando
Corral, Rubén
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
European Commission
Maestro González, Adolfo [0000-0002-7474-725X]
Bohoyo, Fernando [0000-0002-1044-8816]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Volcanic alignments
Elongate mud volcanoes
Field stress
Gulf of Cadiz
Maximum horizontal stress
topic Volcanic alignments
Elongate mud volcanoes
Field stress
Gulf of Cadiz
Maximum horizontal stress
description [EN] Information gathered from multibeam echosounders and seismic profiles in the Gulf of Cadiz show several morphological reliefs having circular to sub-circular shape having been associated to mud volcanoes. The distribution of mud volcanoes in this area can be related to fluids escapes (gases and water), comprising mud and rock blocks from a pressurized deep unit through structural discontinuities of the upper crust. They are located in a complex tecto-sedimentary wedge named Accretionary Wedge of the Gulf of Cadiz formed by African-Eurasian convergence and the westward Rifean-Gibraltar-Betic Arc. They are most frequent in four sectors: the Moroccan, the Guadalquivir Diapiric Ridge, the TASYO and Deep South Portuguese fields. They differ in size, shape, and presence of the mud flows. Statistical analysis of the regional-scale distribution and shape of the mud volcanoes provides new information about present-day stress filed. The volcano strain indicators show a robust recent direction of two main regional maximum horizontal stress SH striking N132E and N149E to N160E, as well as a three secondary stress field with a N050E, N090E and N175E to N045E trends. The analysis of mud volcano alignments indicates two main trends, N125E and N150E, and two secondary orientations, N070E and N095E. These results are congruent with the stress field established from focal mechanisms, borehole breakouts and mesofault population data.
publishDate 2019
dc.date.none.fl_str_mv 2019
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/375566
https://api.elsevier.com/content/abstract/scopus_id/85071918996
url http://hdl.handle.net/10261/375566
https://api.elsevier.com/content/abstract/scopus_id/85071918996
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MICINN//CTM2008-06399-C04-01
info:eu-repo/grantAgreement/AEI//CGL2016-80445-R
https://doi.org/10.1016/j.jog.2019.101653
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869421002628268032
score 15.812455

Similares en LA Referencia