Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)

16 pages, 13 figures, 1 table

Detalhes bibliográficos
Autores: Ribó, Marta, Puig, Pere, Muñoz, Araceli, Lo Iacono, Claudio, Masqué, Pere, Palanques, Albert, Acosta-Yepes, Juan, Guillén, Jorge, Gómez-Ballesteros, María
Tipo de documento: artigo
Data de publicação:2016
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/128665
Acesso em linha:http://hdl.handle.net/10261/128665
Access Level:Acceso aberto
Palavra-chave:Sediment waves
Morphobathymetric analysis
Seismic stratigraphy
Near-inertial internal waves
Gulf of Valencia
NW Mediterranean
id ES_30801fcfbf6b2bcabac918ccbfe09844
oai_identifier_str oai:digital.csic.es:10261/128665
network_acronym_str ES
network_name_str España
repository_id_str
spelling Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)Ribó, MartaPuig, PereMuñoz, AraceliLo Iacono, ClaudioMasqué, PerePalanques, AlbertAcosta-Yepes, JuanGuillén, JorgeGómez-Ballesteros, MaríaSediment wavesMorphobathymetric analysisSeismic stratigraphyNear-inertial internal wavesGulf of ValenciaNW Mediterranean16 pages, 13 figures, 1 tableDetailed analysis of recently acquired swath bathymetry, together with high-resolution seismic profiles and bottom sediment samples, revealed the presence of large-scale fine-grained sediment waves over the Gulf of Valencia continental slope. As many other deep-water sediment waves, these features were previously attributed to gravitational slope failure, related to creep-like deformation, and are here reinterpreted as sediment wave fields extending from 250m depth to the continental rise, at ~850m depth. Geometric parameters were computed from the high-resolution multibeam dataset. Sediment wave lengths range between 500 and 1000m, and maximum wave heights of up to 50m are found on the upper slope, decreasing downslope to minimum values of 2m high. Sediment waves on the lower part of the slope are quasi-stationary vertically accreting, whereas they show an upslope migrating pattern from the mid-slope to the upper part of the continental slope. High-resolution seismic profiles show continuous internal reflectors, with sediment waves merging down-section and sediment wave packages decreasing in thickness downslope. These sediment packages are thicker on the crest of each individual sediment wave and thinner on the downslope flank. 210Pb analyses conducted on sediment cores collected over the sediment wave fields also indicate slightly higher sediment accumulation rates on the wave crests. Sediment wave formation processes have been inferred from contemporary hydrodynamic observations, which reveal the presence of near-inertial internal waves interacting with the Gulf of Valencia continental slope. Internal wave activity is suggested to be the preferential mechanism for the transport and deposition of sediment, and the maintenance of the observed sediment wave fields. © 2015 Elsevier B.V.This work was funded by the project COSTEM (CMT2009-07806) and FORMED (CGL2012-33989). [...] The author M. Ribó is supported by a FPI grant (Ref. BES-2010-029949) fromthe Spanish Ministry of Economy and Competitiveness. P. Masqué acknowledges the financial support through the ICREA Academia award and by a Gledden Visiting Fellowship from the Institute of Advanced Studies, The University of Western AustraliaPeer ReviewedInternational Geosynthetics SocietyMinisterio de Economía y Competitividad (España)Institución Catalana de Investigación y Estudios AvanzadosUniversity of Western AustraliaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]20162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/128665reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.geomorph.2015.09.027Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1286652026-05-22T06:33:51Z
dc.title.none.fl_str_mv Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
title Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
spellingShingle Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
Ribó, Marta
Sediment waves
Morphobathymetric analysis
Seismic stratigraphy
Near-inertial internal waves
Gulf of Valencia
NW Mediterranean
title_short Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
title_full Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
title_fullStr Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
title_full_unstemmed Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
title_sort Morphobathymetric analysis of the large fine-grained sediment waves over the Gulf of Valencia continental slope (NW Mediterranean)
dc.creator.none.fl_str_mv Ribó, Marta
Puig, Pere
Muñoz, Araceli
Lo Iacono, Claudio
Masqué, Pere
Palanques, Albert
Acosta-Yepes, Juan
Guillén, Jorge
Gómez-Ballesteros, María
author Ribó, Marta
author_facet Ribó, Marta
Puig, Pere
Muñoz, Araceli
Lo Iacono, Claudio
Masqué, Pere
Palanques, Albert
Acosta-Yepes, Juan
Guillén, Jorge
Gómez-Ballesteros, María
author_role author
author2 Puig, Pere
Muñoz, Araceli
Lo Iacono, Claudio
Masqué, Pere
Palanques, Albert
Acosta-Yepes, Juan
Guillén, Jorge
Gómez-Ballesteros, María
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Institución Catalana de Investigación y Estudios Avanzados
University of Western Australia
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Sediment waves
Morphobathymetric analysis
Seismic stratigraphy
Near-inertial internal waves
Gulf of Valencia
NW Mediterranean
topic Sediment waves
Morphobathymetric analysis
Seismic stratigraphy
Near-inertial internal waves
Gulf of Valencia
NW Mediterranean
description 16 pages, 13 figures, 1 table
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/128665
url http://hdl.handle.net/10261/128665
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.geomorph.2015.09.027
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv International Geosynthetics Society
publisher.none.fl_str_mv International Geosynthetics Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405549739638784
score 15,811543

Registros relacionados