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dc.contributor.authorFernández-Salas, L. M.-
dc.contributor.authorDurán, Ruth-
dc.contributor.authorLobo, F. J.-
dc.contributor.authorRibó, Marta-
dc.contributor.authorCanals, Miquel-
dc.identifierissn: 0366-0176-
dc.identifiere-issn: 2253-6167-
dc.identifier.citationBoletín Geológico y Minero 126(2-3): 327-376 (2015)-
dc.descriptionFernández-Salas, L.M. ... et. al.-- 49 pages, 9 figures-
dc.description.abstract[EN] Here we present a synthesis of bedforms and sediment types on the shelves surrounding the Iberian Peninsula and the Balearic Islands, after the integration several pieces of bathymetric, morphological and sedimentological datasets. The Iberian and Balearic shelves are divided into segments according to the large-scale margin configuration, fluvial sediment supply and hydrodynamic regime. Their geological settings and large-scale sedimentation patterns place the investigated shelves into two broad categories: abrupt, steep and narrow sediment-starved shelves, illustrated by the Cantabrian shelf, and gentle, smooth and wide sediment-fed shelves, such as the shelves off some major flivial systems. An in-depth classification was subsequently attempted, based on morpho-sedimentary types. Under this approach, the Iberian and Balearic shelves can be classified as: (1) storm-dominated shelves, with erosional rocky floors, frequent abrasion surfaces and coarse-grained sediments; (2) current-dominated shelves, showing a good equilibriumbetween sediment fluxes and coastal and shallow ocean circulation, with laterally extensive muddy belts; (3) sediment supply-dominated shelves, where extensive subaqueous deltas develop off river mouths; and (4) wave-dominated shelves that occur off coastal stretches with minor and/or multiple fluvial sediment sources and enhanced littoral current. © 2015, Instituto Geologico y Minero de Espana. All rights reserved-
dc.description.abstract[ES] En este estudio se presenta una síntesis de los tipos morfológicos y de los sedimentos superficiales que cubren las plataformas alrededor de la Península Ibérica y las Islas Baleares, integrando datos de distinta naturaleza (datos batimétricos y cartografía de tipos morfológicos y sedimentarios). La plataforma fue subdividida en varios sectores de acuerdo con la configuración general de los márgenes continentales y las condiciones regionales del aporte fluvial y de la hidrodinámica. Las plataformas ibérica y balear se dividen básicamente en dos categorías en función del contexto geológico y los patrones sedimentarios a escala del margen continental: plataformas desnutridas abruptas, inclinadas y estrechas, como la plataforma cantábrica como ejemplo más significativo, y plataformas nutridas suaves, poco inclinadas y anchas, tales como los sectores de plataforma frente a los principales sistemas fluviales. Una clasificación más pormenorizada se realizó teniendo en cuenta la distribución de tipos morfosedimentarios. De esta forma, las plataformas de la península ibérica y de las islas Baleares pueden ser clasificadas en: (1) plataformas erosivas rocosas, controladas por regímenes de tormentas energéticas, caracterizadas por extensas superficies de abrasión y sedimentos groseros; (2) plataformas dominadas por las corrientes, que muestran un equilibrio entre los flujos sedimentarios y la circulación somera, que conduce al desarrollo de cinturones fangosos de elevada continuidad lateral; (3) plataformas dominadas por los aportes, con desarrollo de grandes depósitos deltaicos submarinos frente a ríos grandes y medios; (4) plataformas dominadas por el oleaje, frente a sectores costeros con (múltiples) aportes fluviales menores y condiciones de deriva litoral activa-
dc.description.sponsorshipThis paper was completed thanks to the support of the following research projects: CGL2011-30302-C02- 02, COSTEM (CTM2009-07806) and FORMED (CGL2012-33989) funded by the Spanish R+D Program, MOSAICO (P06-RNM-01594) and TESELA (P11-RNM7069) funded by the Andalusian R+D Program. Miquel Canals and Ruth Duran acknowledge Generalitat de Catalunya autonomous government for its support to GRC Geociències Marines through grants 2009 SGR 1305 and 2014 SGR 1068 to Excellence Research Groups. Ruth Durán acknowledges a CSIC JAE-Doc contract co-funded by the FSE. Isabel Mendes thanks the Portuguese Foundation for Science and Technology (FCT) for grant SFRH/BPD/72869/2010. Marta Ribó is supported by a FPI grant (Ref. BES-2010-029949) from the Spanish Ministry of Economy and Competitiveness. The Basque Country continental shelf mapping was supported by the Department of Environment, Land Use, Agriculture and Fisheries, of the Basque Government. This study is a contribution to IGCP project 588 (Preparing for coastal change: a detailed processresponse framework for coastal change at different timescales), to INQUA IFG Rapid environmental changes and human impact on continental shelves and to MeshAtlantic project (Atlantic Area Transnational Cooperation Programme 2007 and 2013 of the European Regional Development Fund) (http://www.meshatlantic.eu )-
dc.publisherInstituto Geológico y Minero de España-
dc.subjectContinental shelf-
dc.subjectInsular shelf-
dc.subjectSediment types-
dc.subjectIberian Peninsula-
dc.subjectBalearic Islands-
dc.subjectPlataforma continental-
dc.subjectPlataforma insular-
dc.subjectTipo de sedimentos-
dc.subjectPenínsula Ibérica-
dc.subjectIslas Baleares-
dc.titleShelves of the Iberian Peninsula and the Balearic Islands (I): Morphology and sediment types-
dc.title.alternativePlataformas de la Península Ibérica y las Islas Baleares (I): Morfología y tipos de sedimentos-
dc.description.versionPeer Reviewed-
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