Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system

In this work we present a study of an alluvial fan system, which is affected by the Quaternary activity of the left-lateral, reverse Alhama de Murcia Fault (Betic Cordillera). Paleoseismic studies in this area yield data that can be compared and correlated with the morphologic and tectono-sedimentar...

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Autores: Martínez Díaz, José Jesús, Masana, Eulàlia, Hernández Enrile, José Luis, Santanach, Pere
Tipo de documento: artigo
Data de publicação:2003
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositório:Docta Complutense
Idioma:inglês
OAI Identifier:oai:docta.ucm.es:20.500.14352/131182
Acesso em linha:https://hdl.handle.net/20.500.14352/131182
Access Level:Acceso aberto
Palavra-chave:56:550.34(460.33)
paleoseismicity
slow active faults
fan morphology
Alhama de Murcia Fault
Betic Cordillera
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/131182
network_acronym_str ES
network_name_str España
repository_id_str
spelling Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan systemMartínez Díaz, José JesúsMasana, EulàliaHernández Enrile, José LuisSantanach, Pere56:550.34(460.33)paleoseismicityslow active faultsfan morphologyAlhama de Murcia FaultBetic CordilleraSismología (Geología)Geodinámica2507.05 Sismología y Prospección SísmicaIn this work we present a study of an alluvial fan system, which is affected by the Quaternary activity of the left-lateral, reverse Alhama de Murcia Fault (Betic Cordillera). Paleoseismic studies in this area yield data that can be compared and correlated with the morphologic and tectono-sedimentary evolution of the alluvial fan. The spatial arrangement of the sedimentary alluvial fan units near the fault zone, shown in trenches, is controlled by the recurrent reverse, left-lateral coseismic events. We analysed the morphology of the drainage network using a 1:5000 scale orthoimage to identify and measure horizontal deflections along the fault. The channel pattern analysis allowed us to estimate the average horizontal slip rate of the SAMF for the last 130 ka. This value is 0.21 mm/a, which is slightly higher than the range of values obtained by trenching analysis for the last 30 ka, (0.06 to 0.15 mm/yr). The interpretation of the stratigraphic sequence exposed along the trench walls constrained the occurrence of at least two surface faulting earthquakes during the last 30000 years. The most recent event happened after the El Saltador Creek dissected the alluvial fan. The penultimate event occurred while the alluvial fan was still active.Istituto nazionale di geofisica e vulcanologiaUniversidad Complutense de Madrid20032003-01-0120032003-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/131182reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1311822026-06-02T12:44:21Z
dc.title.none.fl_str_mv Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
title Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
spellingShingle Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
Martínez Díaz, José Jesús
56:550.34(460.33)
paleoseismicity
slow active faults
fan morphology
Alhama de Murcia Fault
Betic Cordillera
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
title_short Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
title_full Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
title_fullStr Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
title_full_unstemmed Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
title_sort Effects of repeated paleoeartquakes on the Alhama de Murcia fault (Betic Cordillera, Spain) on the Quaternary evolution of an alluvial fan system
dc.creator.none.fl_str_mv Martínez Díaz, José Jesús
Masana, Eulàlia
Hernández Enrile, José Luis
Santanach, Pere
author Martínez Díaz, José Jesús
author_facet Martínez Díaz, José Jesús
Masana, Eulàlia
Hernández Enrile, José Luis
Santanach, Pere
author_role author
author2 Masana, Eulàlia
Hernández Enrile, José Luis
Santanach, Pere
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 56:550.34(460.33)
paleoseismicity
slow active faults
fan morphology
Alhama de Murcia Fault
Betic Cordillera
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
topic 56:550.34(460.33)
paleoseismicity
slow active faults
fan morphology
Alhama de Murcia Fault
Betic Cordillera
Sismología (Geología)
Geodinámica
2507.05 Sismología y Prospección Sísmica
description In this work we present a study of an alluvial fan system, which is affected by the Quaternary activity of the left-lateral, reverse Alhama de Murcia Fault (Betic Cordillera). Paleoseismic studies in this area yield data that can be compared and correlated with the morphologic and tectono-sedimentary evolution of the alluvial fan. The spatial arrangement of the sedimentary alluvial fan units near the fault zone, shown in trenches, is controlled by the recurrent reverse, left-lateral coseismic events. We analysed the morphology of the drainage network using a 1:5000 scale orthoimage to identify and measure horizontal deflections along the fault. The channel pattern analysis allowed us to estimate the average horizontal slip rate of the SAMF for the last 130 ka. This value is 0.21 mm/a, which is slightly higher than the range of values obtained by trenching analysis for the last 30 ka, (0.06 to 0.15 mm/yr). The interpretation of the stratigraphic sequence exposed along the trench walls constrained the occurrence of at least two surface faulting earthquakes during the last 30000 years. The most recent event happened after the El Saltador Creek dissected the alluvial fan. The penultimate event occurred while the alluvial fan was still active.
publishDate 2003
dc.date.none.fl_str_mv 2003
2003-01-01
2003
2003-01-01
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/20.500.14352/131182
url https://hdl.handle.net/20.500.14352/131182
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/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 4.0 International
http://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 Istituto nazionale di geofisica e vulcanologia
publisher.none.fl_str_mv Istituto nazionale di geofisica e vulcanologia
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_ 1869405325114736640
score 15.811543

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