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<datestamp>2018-01-12</datestamp>
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<title lang=en>Active tectonics of the Calabrian subduction revealed by new multi-beam bathymetric data and high-resolution seismic profiles in the Ionian Sea (Central Mediterranean)</title>
<creator>Gutscher, Marc-André, </creator>
<creator>Kopp, H.</creator>
<creator>Krastel, S.</creator>
<creator>Bohrmann, G.</creator>
<creator>Garlan, Th.</creator>
<creator>Zaragosi, S.</creator>
<creator>Klaucke, I.</creator>
<creator>Wintersteller, P.</creator>
<creator>Loubrieu, B.</creator>
<creator>Le Faou, Y.</creator>
<creator>San Pedro, L.</creator>
<creator>Dominguez, S.</creator>
<creator>Rovere, M.</creator>
<creator>Mercier De Lepinay, B.</creator>
<creator>Ranero, C.</creator>
<creator>Sallares, V.</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>GEOMAR - Helmholtz Centre for Ocean Research [Kiel] (GEOMAR)</contributor>
<contributor>Christian-Albrechts-Universität zu Kiel (CAU)</contributor>
<contributor>MARUM ; University of Bremen</contributor>
<contributor>Service Hydrographique et Océanographique de la Marine (SHOM) ; Ministère de la Défense</contributor>
<contributor>UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (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>Ifremer - Pouzané ; Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)</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>Institute for marine sciences ; Consiglio Nazionale delle Ricerche [Roma] (CNR)</contributor>
<contributor>Géoazur (GEOAZUR) ; Université Côte d'Azur (UCA) - Centre National de la Recherche Scientifique (CNRS) - Observatoire de la Côte d'Azur - Institut national des sciences de l'Univers (INSU - CNRS) - Université Nice Sophia Antipolis (UNS) ; Université Côte d'Azur (UCA)</contributor>
<contributor>Institució Catalana de Recerca i Estudis Avançats [Barcelona] (ICREA) ; Universitat de Barcelona (UB) - Fundació Catalana per a la Recerca i la Innovació (FCRI) - ICREA</contributor>
<contributor>Unitat de Tecnologia Marina (UTM) ; Centre Mediterrani d'Investigacions Marines I ambientals</contributor>
<description>International audience</description>
<source>ISSN: 0012-821X</source>
<source>Earth and Planetary Science Letters</source>
<publisher>Elsevier</publisher>
<identifier>hal-01523990</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01523990</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01523990</source>
<source>Earth and Planetary Science Letters, Elsevier, 2017, 461, pp.61 - 72. 〈10.1016/j.epsl.2016.12.020〉</source>
<identifier>DOI : 10.1016/j.epsl.2016.12.020</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2016.12.020</relation>
<language>en</language>
<subject>[SDU.STU] Sciences of the Universe [physics]/Earth Sciences</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The detailed morphology and internal structure of the Calabrian accretionary wedge and adjacent Eastern Sicily margin are imaged in unprecedented detail by a combined dataset of multi-beam bathymetry and high-resolution seismic profiles. The bathymetric data represent the results of 6 recent marine geophysical surveys since 2010 as well as a compilation of earlier surveys presented as a 2 arc-sec (60 m) grid. Several distinct morpho-tectonic provinces are identified including: the deeply incised Malta–Hyblean Escarpment, numerous submarine canyons, broad regions of relatively flat seafloor dominated by fields of sediment waves, the gently undulating anticlinal fold-and-thrust belts of the external Calabrian accretionary wedge and the adjacent portion of the Western Mediterranean Ridge. The Calabrian arc can be divided into 4 domains (from SE to NW): 1) the undeformed Ionian abyssal plain, 2) the external evaporitic wedge, 3) the internal clastic wedge, 4) the Calabrian backstop (Variscan crystalline basement). The Calabrian accretionary wedge can also be divided laterally into two major lobes, the NE- and the SW lobes, and two minor lobes. The kinematics of the limit between the two major lobes is investigated and shown to be sinistral in the external (evaporitic) wedge. A network of radial slip lines within the southernmost external wedge unequivocally demonstrate ongoing dextral displacement of a rigid indenter (representing the corner of the clastic wedge) into the evaporitic wedge thereby confirming the geodynamic model of an active lateral slab tear fault here off eastern Sicily. The slab tear produces a series of major sub-parallel dextral strike-slip faults offshore Mt. Etna and south of the Straits of Messina consistent with the relative motions between Calabria and the Peloritan domain (NE Sicily). Abundant strike-slip faulting, and wide-spread folding and thrusting observed throughout the entire accretionary wedge, indicate regional shortening between the Ionian abyssal plain (foreland) and the Calabrian–Peloritan backstop caused by active subduction.</description>
<date>2017-01-02</date>
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