Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)

Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)

Perea, Héctor ... et. al.-- EVENT SHELF team is formed by Marcel-lí Farran, E. Andara, S. Pérez and M. Román Alpiste. -- 18 pages, 10 figures

Saved in:
Bibliographic Details
Main Authors: Perea, Héctor, Gràcia, Eulàlia, Bartolomé, Rafael, Lo Iacono, Claudio, Moreno, Ximena, Masana, E., Farran, Marcel-lí, EVENT-SHELF Team
Format: artículo biblioteca
Language:English
Published: European Geosciences Union 2012-10
Online Access:http://hdl.handle.net/10261/63047
Tags: Add Tag
No Tags, Be the first to tag this record!
id dig-icm-es-10261-63047
record_format koha
spelling dig-icm-es-10261-630472020-11-10T10:40:21Z Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea) Perea, Héctor Gràcia, Eulàlia Bartolomé, Rafael Lo Iacono, Claudio Moreno, Ximena Masana, E. Farran, Marcel-lí EVENT-SHELF Team Perea, Héctor ... et. al.-- EVENT SHELF team is formed by Marcel-lí Farran, E. Andara, S. Pérez and M. Román Alpiste. -- 18 pages, 10 figures The Bajo Segura fault zone (BSFZ) is the northern terminal splay of the Eastern Betic shear zone (EBSZ), a large left-lateral strike-slip fault system of sigmoid geometry stretching more than 450 km from Alicante to Almería. The BSFZ extends from the onshore Bajo Segura basin further into the Mediterranean Sea and shows a moderate instrumental seismic activity characterized by small earthquakes. Nevertheless, the zone was affected by large historical earthquakes of which the largest was the 1829 Torrevieja earthquake (IEMS98 X). The onshore area of the BSFZ is marked by active transpressive structures (faults and folds), whereas the offshore area has been scarcely explored from the tectonic point of view. During the EVENT-SHELF cruise, a total of 10 high-resolution single-channel seismic sparker profiles were obtained along and across the offshore Bajo Segura basin. Analysis of these profiles resulted in (a) the identification of 6 Quaternary seismo-stratigraphic units bounded by five horizons corresponding to regional erosional surfaces related to global sea level lowstands; and (b) the mapping of the active sub-seafloor structures and their correlation with those described onshore. Moreover, the results suggest that the Bajo Segura blind thrust fault or the Torrevieja left-lateral strike-slip fault, with prolongation offshore, could be considered as the source of the 1829 Torrevieja earthquake. These data improve our understanding of present deformation along the BSFZ and provide new insights into the seismic hazard in the area The authors acknowledge the support of the Spanish Ministry of Science and Innovation through National Projects IMPULS (REN2003-05996MAR), EVENT (CGL 2006-12861-C02-02) and SHAKE (CGL 2011-30005-C02-02); Acciones Complementarias EVENT-SHELF (CTM 2008-03346-E/MAR) and SPARKER (CTM 2008-03208-E/MAR); and ESF TopoEurope TOPOMED project (CGL 2008-03474-E/BTE). We are grateful to the captain, crew and science party onboard the RV Garcia del Cid. Hector Perea was a researcher at IDL-UL Associated Laboratory under contract no. 3/2010/LAB IDL co-financed by the Portuguese FCT and FEDER and at UTM-CSIC under the Juan de la Cierva contract no. JCI-2010-07502 funded by the Spanish Ministry of Science and Innovation Peer reviewed 2012-12-17T11:48:41Z 2012-12-17T11:48:41Z 2012-10 artículo http://purl.org/coar/resource_type/c_6501 Natural Hazards and Earth System Sciences 12: 3151-3168 (2012) 1561-8633 http://hdl.handle.net/10261/63047 10.5194/nhess-12-3151-2012 1684-9981 en https://doi.org/10.5194/nhess-12-3151-2012 open European Geosciences Union
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
description Perea, Héctor ... et. al.-- EVENT SHELF team is formed by Marcel-lí Farran, E. Andara, S. Pérez and M. Román Alpiste. -- 18 pages, 10 figures
format artículo
author Perea, Héctor
Gràcia, Eulàlia
Bartolomé, Rafael
Lo Iacono, Claudio
Moreno, Ximena
Masana, E.
Farran, Marcel-lí
EVENT-SHELF Team
spellingShingle Perea, Héctor
Gràcia, Eulàlia
Bartolomé, Rafael
Lo Iacono, Claudio
Moreno, Ximena
Masana, E.
Farran, Marcel-lí
EVENT-SHELF Team
Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)
author_facet Perea, Héctor
Gràcia, Eulàlia
Bartolomé, Rafael
Lo Iacono, Claudio
Moreno, Ximena
Masana, E.
Farran, Marcel-lí
EVENT-SHELF Team
author_sort Perea, Héctor
title Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)
title_short Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)
title_full Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)
title_fullStr Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)
title_full_unstemmed Quaternary active tectonic structures in the offshore Bajo Segura basin (SE Iberian Peninsula – Mediterranean Sea)
title_sort quaternary active tectonic structures in the offshore bajo segura basin (se iberian peninsula – mediterranean sea)
publisher European Geosciences Union
publishDate 2012-10
url http://hdl.handle.net/10261/63047
work_keys_str_mv AT pereahector quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
AT graciaeulalia quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
AT bartolomerafael quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
AT loiaconoclaudio quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
AT morenoximena quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
AT masanae quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
AT farranmarcelli quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
AT eventshelfteam quaternaryactivetectonicstructuresintheoffshorebajosegurabasinseiberianpeninsulamediterraneansea
_version_ 1777665878447357952

Similar Items