Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin

17 pages, 11 figures, 1 table

Detalles Bibliográficos
Autores: Micallef, Aaron, Ribó, Marta, Canals, Miquel, Puig, Pere, Lastras, Galderic, Tubau, X.
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/103117
Acceso en línea:http://hdl.handle.net/10261/103117
Access Level:acceso abierto
Palabra clave:Space-for-time substitution
Submarine canyon
Submarine channel
Passive margin
Submarine geomorphology
Ebro margin
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spelling Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational marginMicallef, AaronRibó, MartaCanals, MiquelPuig, PereLastras, GaldericTubau, X.Space-for-time substitutionSubmarine canyonSubmarine channelPassive marginSubmarine geomorphologyEbro margin17 pages, 11 figures, 1 tableSpace-for-time substitution is a concept that has been widely applied, but not thoroughly tested, in some fields of geomorphology. The objective of this study is to test whether the concept of space-for-time substitution is valid in reconstructing the evolution of a submarine canyon-channel system in a passive progradational margin. We use multibeam echosounder data and in situ measurements from the south Ebro Margin to analyse the morphology and morphometry of a sequence of submarine valleys ordered in terms of increasing valley thalweg length. The morphological model of submarine valley evolution that we can propose from this analysis is very similar to established models in the literature, which leads us to conclude that time can be substituted by space when reconstructing the evolution of submarine canyon and channel systems in the south Ebro Margin. By extracting morphometric information from the application of the space-for-time substitution model to our data, we identify a series of morphological patterns as a submarine canyon evolves in a passive progradational margin. These include the geometric similarity of canyon planform shape, an increase in canyon draining efficiency and in the influence of flank slope failures, and an evolution towards equilibrium between canyon form and imposed water and sediment load without net erosion or deposition taking place. We also observe that canyon elongation is higher downslope and that the canyon undergoes an early stage of rapid incision similar to the process of >erosion narrowing> reported in terrestrial rivers. We demonstrate that the conclusions of our study are not limited to submarine valleys in the south Ebro Margin but are applicable to other margins around the world. © 2014 Elsevier B.V.This research was supported by Marie Curie Intra-European Fellowship PIEF-GA-2009-252702, Marie Curie Career Integration Grant PCIG13-GA-2013-618149 and HERMIONE (grant agreement 226354) within the 7th European Community Framework Programme, DOS MARES (CTM2007-66316-C02-01/MAR), GRACCIE-CONSOLIDER (CSD2007-00067), CASCADES (CTM2008-01334-E) and COSTEM (CTM2009-07806) projects. [...] AM, MC, GL and XT belong to CRG on Marine Geosciences, supported by grant 2009 SGR 1305, Generalitat de CatalunyaPeer ReviewedInternational Geosynthetics SocietyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2014201420142014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/103117reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/226354https://doi.org/10.1016/j.geomorph.2014.06.008Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1031172026-05-22T06:33:51Z
dc.title.none.fl_str_mv Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
title Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
spellingShingle Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
Micallef, Aaron
Space-for-time substitution
Submarine canyon
Submarine channel
Passive margin
Submarine geomorphology
Ebro margin
title_short Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
title_full Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
title_fullStr Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
title_full_unstemmed Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
title_sort Space-for-time substitution and the evolution of a submarine canyon-channel system in a passive progradational margin
dc.creator.none.fl_str_mv Micallef, Aaron
Ribó, Marta
Canals, Miquel
Puig, Pere
Lastras, Galderic
Tubau, X.
author Micallef, Aaron
author_facet Micallef, Aaron
Ribó, Marta
Canals, Miquel
Puig, Pere
Lastras, Galderic
Tubau, X.
author_role author
author2 Ribó, Marta
Canals, Miquel
Puig, Pere
Lastras, Galderic
Tubau, X.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Space-for-time substitution
Submarine canyon
Submarine channel
Passive margin
Submarine geomorphology
Ebro margin
topic Space-for-time substitution
Submarine canyon
Submarine channel
Passive margin
Submarine geomorphology
Ebro margin
description 17 pages, 11 figures, 1 table
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014
2014
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/10261/103117
url http://hdl.handle.net/10261/103117
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/FP7/226354
https://doi.org/10.1016/j.geomorph.2014.06.008
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
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score 15,811543

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