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<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd> <responseDate>2018-01-15T15:42:18Z</responseDate> <request identifier=oai:HAL:insu-00401683v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request> <GetRecord> <record> <header> <identifier>oai:HAL:insu-00401683v1</identifier> <datestamp>2018-01-11</datestamp> <setSpec>type:ART</setSpec> <setSpec>subject:sdu</setSpec> <setSpec>subject:phys</setSpec> <setSpec>subject:sde</setSpec> <setSpec>collection:SDE</setSpec> <setSpec>collection:INSU</setSpec> <setSpec>collection:CNRS</setSpec> <setSpec>collection:UNIV-BREST</setSpec> <setSpec>collection:GM</setSpec> <setSpec>collection:GIP-BE</setSpec> <setSpec>collection:AGROPOLIS</setSpec> <setSpec>collection:EPHE</setSpec> <setSpec>collection:PSL</setSpec> <setSpec>collection:UNIV-AG</setSpec> <setSpec>collection:B3ESTE</setSpec> <setSpec>collection:UNIV-MONTPELLIER</setSpec> <setSpec>collection:LGO</setSpec> <setSpec>collection:CMM</setSpec> </header> <metadata><dc> <publisher>HAL CCSD</publisher> <title lang=en>Tectonic shortening and gravitational spreading in the Gulf of Cadiz accretionary wedge: Observations from multi-beam bathymetry and seismic profiling</title> <creator>Gutscher, Marc-André, </creator> <creator>Dominguez, Stephane</creator> <creator>K. Westbrook, Graham</creator> <creator>Gente, Pascal</creator> <creator>Babonneau, Nathalie</creator> <creator>Mulder, Thierry</creator> <creator>Gonthier, Eliane</creator> <creator>Bartolome, Rafael</creator> <creator>Luis, Joaquim</creator> <creator>Rosas, Filipe</creator> <creator>Terrinha, Pedro</creator> <creator>Delila And Delsis Scientific Teams, The</creator> <contributor>Domaines Océaniques (LDO) ; Centre National de la Recherche Scientifique (CNRS) - Institut d'écologie et environnement - Observatoire des Sciences de l'Univers - Université de Brest (UBO) - Institut national des sciences de l'Univers (INSU - CNRS)</contributor> <contributor>Université européenne de Bretagne (UEB)</contributor> <contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>University of Birmingham [Birmingham]</contributor> <contributor>Environnements et Paléoenvironnements OCéaniques (EPOC) ; Observatoire aquitain des sciences de l'univers (OASU) ; Université Sciences et Technologies - Bordeaux 1 - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - Université Sciences et Technologies - Bordeaux 1 - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - École pratique des hautes études (EPHE) - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>CMIMA ; CMIMA</contributor> <contributor>University of Algarve ; University of Algarve [Portugal]</contributor> <contributor>Faculdade de Ciências [Lisboa] ; Universidade de Lisboa (ULISBOA)</contributor> <contributor>INETI ; INETI</contributor> <description>International audience</description> <source>ISSN: 0264-8172</source> <source>Marine and Petroleum Geology</source> <publisher>Elsevier</publisher> <identifier>insu-00401683</identifier> <identifier>https://hal-insu.archives-ouvertes.fr/insu-00401683</identifier> <source>https://hal-insu.archives-ouvertes.fr/insu-00401683</source> <source>Marine and Petroleum Geology, Elsevier, 2009, 26 (5), pp.647-659. 〈10.1016/j.marpetgeo.2007.11.008〉</source> <identifier>DOI : 10.1016/j.marpetgeo.2007.11.008</identifier> <relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.marpetgeo.2007.11.008</relation> <language>en</language> <subject lang=en>Iberia</subject> <subject lang=en>Morocco</subject> <subject lang=en>Accretionary wedge</subject> <subject lang=en>Decollement</subject> <subject lang=en>Gravitational spreading</subject> <subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject> <subject>[PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]</subject> <subject>[SDE.MCG] Environmental Sciences/Global Changes</subject> <type>info:eu-repo/semantics/article</type> <type>Journal articles</type> <description lang=en>The Gulf of Cadiz lies astride the complex plate boundary between Africa and Eurasia west of the Betic-Rif mountain belt. We report on the results of recent bathymetric swathmapping and multi-channel seismic surveys carried out here. The seafloor is marked by contrasting morphological provinces, spanning the SW Iberian and NW Moroccan continental margins, abyssal plains and an elongate, arcuate, accretionary wedge. A wide variety of tectonic and gravitational processes appear to have shaped these structures. Active compressional deformation of the wedge is suggested by folding and thrusting of the frontal sedimentary layers as well as basal duplexing in deeper internal units. There is evidence for simultaneous gravitational spreading occurring upslope. The very shallow mean surface and basal slopes of the accretionary wedge (1° each) indicate a very weak decollement layer, geometrically similar to the Mediterranean Ridge accretionary complex. Locally steep slopes (up to 10°) indicate strongly focused, active deformation and potential gravitational instabilities. The unusual surface morphology of the upper accretionary wedge includes “raft-tectonics” type fissures and abundant sub-circular depressions. Dissolution and/or diapiric processes are proposed to be involved in the formation of these depressions.</description> <date>2009-05-21</date> </dc> </metadata> </record> </GetRecord> </OAI-PMH>