Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)

17 pages, 10 figures, 4 tables, supplementary data https://doi.org/10.1016/j.margeo.2021.106708

Detalhes bibliográficos
Autores: Casalbore, Daniele, Biancone, Maddalena, Casas, David, Mata Campo, Maria Pilar, Alonso, Belén, Ercilla, Gemma, Chiocci, Francesco L., Bárcenas, Patricia, López-González, Nieves
Formato: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2022
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/258048
Acesso em linha:http://hdl.handle.net/10261/258048
Access Level:acceso abierto
Palavra-chave:Hyperpycnal flows
Hypopycnal flows
Bedforms
Sediment supply
Prodelta
Gullies
Western Mediterranean
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spelling Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)Casalbore, DanieleBiancone, MaddalenaCasas, DavidMata Campo, Maria PilarAlonso, BelénErcilla, GemmaChiocci, Francesco L.Bárcenas, PatriciaLópez-González, NievesHyperpycnal flowsHypopycnal flowsBedformsSediment supplyProdeltaGulliesWestern Mediterranean17 pages, 10 figures, 4 tables, supplementary data https://doi.org/10.1016/j.margeo.2021.106708The Holocene morpho-stratigraphic evolution of a compound submarine deltaic system linked with the Antas and Almanzora Rivers on the narrow (< 5 km) shelf along the Palomares margin (southeastern Iberia) has been reconstructed from the integrated analysis of geomorphology, seismo-stratigraphy and sedimentology. The shelf morphology is characterized by a 3–4 km wide deltaic body off the Almanzora River, where seafloor undulations and gullies are present. Larger and more incised gullies, crescent-shaped bedforms and pockmarks are recognizable at or close to the head of shelf-indenting canyons associated with the Almanzora-Garrucha canyon system. The seismo-stratigraphy displays a strong and irregular basal reflector overlain by a sedimentary wedge, showing variable thicknesses (1–25 m) and seismic characteristics along and across the shelf. The main depocenter of this wedge is not located off the Almanzora River mouth (i.e., the main sedimentary input in the study area) but along the southern shelf encompassing the Almanzora and Antas Rivers. Grain-size and sand compositional analyses show that silty sand with high terrigenous content (mostly quartz and mica) is mainly found on the submarine deltaic body. In contrast, sandy silt with variable ratios between terrigenous and biogenic contents is retrieved from the canyon head and associated gullies as well as from the surrounding mid-outer shelf. The evolution of the Antas-Almanzora compound delta has been divided into three evolutionary stages, mainly driven by the interplay between paleo-topography and riverine and marine processes and modulated by sea level changes during the Holocene. The origin of the present-day morphological features is also discussed, again highlighting a complex interaction between sedimentary gravity flows (mainly flash flood-generated hyperpycnal flows), storm-waves and shelf currents, fluid seepage and retrogressive slope failuresThis research was supported by the Spanish Fauces project (CTM2015-65461-C2-1-R). We thank IHS for providing the Kingdom Suite™ licence. [...] This work acknowledges the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S)Peer reviewedElsevierMinisterio de Economía y Competitividad (España)Agencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionhttp://hdl.handle.net/10261/258048reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-65461-C2-1-Rhttps://doi.org/10.1016/j.margeo.2021.106708Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2580482026-05-22T06:33:51Z
dc.title.none.fl_str_mv Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
title Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
spellingShingle Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
Casalbore, Daniele
Hyperpycnal flows
Hypopycnal flows
Bedforms
Sediment supply
Prodelta
Gullies
Western Mediterranean
title_short Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
title_full Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
title_fullStr Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
title_full_unstemmed Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
title_sort Holocene morpho-stratigraphic evolution of a compound submarine deltaic system in front of the shelf-incising Almanzora and Garrucha Canyons (Palomares margin, southeastern Iberia)
dc.creator.none.fl_str_mv Casalbore, Daniele
Biancone, Maddalena
Casas, David
Mata Campo, Maria Pilar
Alonso, Belén
Ercilla, Gemma
Chiocci, Francesco L.
Bárcenas, Patricia
López-González, Nieves
author Casalbore, Daniele
author_facet Casalbore, Daniele
Biancone, Maddalena
Casas, David
Mata Campo, Maria Pilar
Alonso, Belén
Ercilla, Gemma
Chiocci, Francesco L.
Bárcenas, Patricia
López-González, Nieves
author_role author
author2 Biancone, Maddalena
Casas, David
Mata Campo, Maria Pilar
Alonso, Belén
Ercilla, Gemma
Chiocci, Francesco L.
Bárcenas, Patricia
López-González, Nieves
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Hyperpycnal flows
Hypopycnal flows
Bedforms
Sediment supply
Prodelta
Gullies
Western Mediterranean
topic Hyperpycnal flows
Hypopycnal flows
Bedforms
Sediment supply
Prodelta
Gullies
Western Mediterranean
description 17 pages, 10 figures, 4 tables, supplementary data https://doi.org/10.1016/j.margeo.2021.106708
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/258048
url http://hdl.handle.net/10261/258048
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/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-65461-C2-1-R
https://doi.org/10.1016/j.margeo.2021.106708
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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