133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction

Autores
López González, Nieves; Alonso, Belén; Juan, Carmen; Ercilla, Gemma; Bozzano, Graziella; Cacho, Isabel; Casas, David; Palomino, Desirée; Vázquez, Juan Tomás; Estrada, Ferran; Bárcenas, Patricia; d’Acremont, Elia; Gorini, Christian; Moumni, Bouchta El
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Djibouti Ville Drift is part of a contourite depositional system located on the southern side of the Djibouti Ville Seamount in the Alboran Sea (Western Mediterranean). The sedimentary record of a core located in the drift deposits has been characterized to achieve the possible sediment sources for the Saharan dust supply and the paleocurrent variability related to Mediterranean intermediate waters for the last 133 kyr. Three end-member grain-size distributions characterize the sediment record transported by the bottom current to address the different aeolian populations, i.e., coarse EM1, silty EM2, and fine EM3. For these particles, the most likely source areas are the Saharan sedimentary basins and deserts, as well as the cratonic basins of the Sahara-Sahel Dust Corridor. The prevalence of these main source areas is shown in the core record, where a noticeable change occurs during the MIS 5 to MIS 4 transition. Some punctual sediment inputs from the seamount have been recognized during sea-level lowstand, but there is no evidence of fluvial supply in the drift deposits. The paleocurrent reconstruction allows the characterizing of the stadial and cold periods by large increases in the mean sortable silt fraction and UP10, which point to an enhanced bottom current strength related to intermediate water masses. Conversely, interglacial periods are characterized by weaker bottom current activity, which is associated with denser deep water masses. These proxies also recorded the intensified Saharan wind transport that occurred during interstadial/stadial transitions. All these results point to the importance of combining sediment source areas with major climatic oscillations and paleocurrent variability in palaeoceanographic sedimentary archives, which may help to develop future climate prediction models.
Fil: López González, Nieves. Instituto Español de Oceanografía; España
Fil: Alonso, Belén. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Juan, Carmen. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Ercilla, Gemma. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Bozzano, Graziella. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cacho, Isabel. Universidad de Barcelona; España
Fil: Casas, David. Instituto Geológico y Minero de España; España
Fil: Palomino, Desirée. Instituto Español de Oceanografía; España
Fil: Vázquez, Juan Tomás. Instituto Español de Oceanografía; España
Fil: Estrada, Ferran. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Bárcenas, Patricia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: d’Acremont, Elia. Sorbonne Universités; Francia
Fil: Gorini, Christian. Université Pierre et Marie Curie; Francia. Sorbonne University; Francia
Fil: Moumni, Bouchta El. Université Abdelmalek Essaadi; Marruecos
Materia
AEOLIAN SEDIMENT SOURCES
ALBORAN SEA
CONTOURITE DRIFT
DJIBOUTI VILLE SEAMOUNT
MEDITERRANEAN INTERMEDIATE WATER MASSES
PALEOCURRENT PROXIES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/151644
Acceder
id CONICETDig_8c54f6bf3504627b48267c55151313fd
oai_identifier_str oai:ri.conicet.gov.ar:11336/151644
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent ReconstructionLópez González, NievesAlonso, BelénJuan, CarmenErcilla, GemmaBozzano, GraziellaCacho, IsabelCasas, DavidPalomino, DesiréeVázquez, Juan TomásEstrada, FerranBárcenas, Patriciad’Acremont, EliaGorini, ChristianMoumni, Bouchta ElAEOLIAN SEDIMENT SOURCESALBORAN SEACONTOURITE DRIFTDJIBOUTI VILLE SEAMOUNTMEDITERRANEAN INTERMEDIATE WATER MASSESPALEOCURRENT PROXIEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Djibouti Ville Drift is part of a contourite depositional system located on the southern side of the Djibouti Ville Seamount in the Alboran Sea (Western Mediterranean). The sedimentary record of a core located in the drift deposits has been characterized to achieve the possible sediment sources for the Saharan dust supply and the paleocurrent variability related to Mediterranean intermediate waters for the last 133 kyr. Three end-member grain-size distributions characterize the sediment record transported by the bottom current to address the different aeolian populations, i.e., coarse EM1, silty EM2, and fine EM3. For these particles, the most likely source areas are the Saharan sedimentary basins and deserts, as well as the cratonic basins of the Sahara-Sahel Dust Corridor. The prevalence of these main source areas is shown in the core record, where a noticeable change occurs during the MIS 5 to MIS 4 transition. Some punctual sediment inputs from the seamount have been recognized during sea-level lowstand, but there is no evidence of fluvial supply in the drift deposits. The paleocurrent reconstruction allows the characterizing of the stadial and cold periods by large increases in the mean sortable silt fraction and UP10, which point to an enhanced bottom current strength related to intermediate water masses. Conversely, interglacial periods are characterized by weaker bottom current activity, which is associated with denser deep water masses. These proxies also recorded the intensified Saharan wind transport that occurred during interstadial/stadial transitions. All these results point to the importance of combining sediment source areas with major climatic oscillations and paleocurrent variability in palaeoceanographic sedimentary archives, which may help to develop future climate prediction models.Fil: López González, Nieves. Instituto Español de Oceanografía; EspañaFil: Alonso, Belén. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Juan, Carmen. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Ercilla, Gemma. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Bozzano, Graziella. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cacho, Isabel. Universidad de Barcelona; EspañaFil: Casas, David. Instituto Geológico y Minero de España; EspañaFil: Palomino, Desirée. Instituto Español de Oceanografía; EspañaFil: Vázquez, Juan Tomás. Instituto Español de Oceanografía; EspañaFil: Estrada, Ferran. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Bárcenas, Patricia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: d’Acremont, Elia. Sorbonne Universités; FranciaFil: Gorini, Christian. Université Pierre et Marie Curie; Francia. Sorbonne University; FranciaFil: Moumni, Bouchta El. Université Abdelmalek Essaadi; MarruecosMDPI journals2019-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/151644López González, Nieves; Alonso, Belén; Juan, Carmen; Ercilla, Gemma; Bozzano, Graziella; et al.; 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction; MDPI journals; Geosciences; 9; 8; 8-2019; 1-222076-3263CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-3263/9/8/345info:eu-repo/semantics/altIdentifier/doi/10.3390/geosciences9080345info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:43:15Zoai:ri.conicet.gov.ar:11336/151644instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:43:16.218CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
title 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
spellingShingle 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
López González, Nieves
AEOLIAN SEDIMENT SOURCES
ALBORAN SEA
CONTOURITE DRIFT
DJIBOUTI VILLE SEAMOUNT
MEDITERRANEAN INTERMEDIATE WATER MASSES
PALEOCURRENT PROXIES
title_short 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
title_full 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
title_fullStr 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
title_full_unstemmed 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
title_sort 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
dc.creator.none.fl_str_mv López González, Nieves
Alonso, Belén
Juan, Carmen
Ercilla, Gemma
Bozzano, Graziella
Cacho, Isabel
Casas, David
Palomino, Desirée
Vázquez, Juan Tomás
Estrada, Ferran
Bárcenas, Patricia
d’Acremont, Elia
Gorini, Christian
Moumni, Bouchta El
author López González, Nieves
author_facet López González, Nieves
Alonso, Belén
Juan, Carmen
Ercilla, Gemma
Bozzano, Graziella
Cacho, Isabel
Casas, David
Palomino, Desirée
Vázquez, Juan Tomás
Estrada, Ferran
Bárcenas, Patricia
d’Acremont, Elia
Gorini, Christian
Moumni, Bouchta El
author_role author
author2 Alonso, Belén
Juan, Carmen
Ercilla, Gemma
Bozzano, Graziella
Cacho, Isabel
Casas, David
Palomino, Desirée
Vázquez, Juan Tomás
Estrada, Ferran
Bárcenas, Patricia
d’Acremont, Elia
Gorini, Christian
Moumni, Bouchta El
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv AEOLIAN SEDIMENT SOURCES
ALBORAN SEA
CONTOURITE DRIFT
DJIBOUTI VILLE SEAMOUNT
MEDITERRANEAN INTERMEDIATE WATER MASSES
PALEOCURRENT PROXIES
topic AEOLIAN SEDIMENT SOURCES
ALBORAN SEA
CONTOURITE DRIFT
DJIBOUTI VILLE SEAMOUNT
MEDITERRANEAN INTERMEDIATE WATER MASSES
PALEOCURRENT PROXIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Djibouti Ville Drift is part of a contourite depositional system located on the southern side of the Djibouti Ville Seamount in the Alboran Sea (Western Mediterranean). The sedimentary record of a core located in the drift deposits has been characterized to achieve the possible sediment sources for the Saharan dust supply and the paleocurrent variability related to Mediterranean intermediate waters for the last 133 kyr. Three end-member grain-size distributions characterize the sediment record transported by the bottom current to address the different aeolian populations, i.e., coarse EM1, silty EM2, and fine EM3. For these particles, the most likely source areas are the Saharan sedimentary basins and deserts, as well as the cratonic basins of the Sahara-Sahel Dust Corridor. The prevalence of these main source areas is shown in the core record, where a noticeable change occurs during the MIS 5 to MIS 4 transition. Some punctual sediment inputs from the seamount have been recognized during sea-level lowstand, but there is no evidence of fluvial supply in the drift deposits. The paleocurrent reconstruction allows the characterizing of the stadial and cold periods by large increases in the mean sortable silt fraction and UP10, which point to an enhanced bottom current strength related to intermediate water masses. Conversely, interglacial periods are characterized by weaker bottom current activity, which is associated with denser deep water masses. These proxies also recorded the intensified Saharan wind transport that occurred during interstadial/stadial transitions. All these results point to the importance of combining sediment source areas with major climatic oscillations and paleocurrent variability in palaeoceanographic sedimentary archives, which may help to develop future climate prediction models.
Fil: López González, Nieves. Instituto Español de Oceanografía; España
Fil: Alonso, Belén. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Juan, Carmen. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Ercilla, Gemma. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Bozzano, Graziella. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cacho, Isabel. Universidad de Barcelona; España
Fil: Casas, David. Instituto Geológico y Minero de España; España
Fil: Palomino, Desirée. Instituto Español de Oceanografía; España
Fil: Vázquez, Juan Tomás. Instituto Español de Oceanografía; España
Fil: Estrada, Ferran. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: Bárcenas, Patricia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; España
Fil: d’Acremont, Elia. Sorbonne Universités; Francia
Fil: Gorini, Christian. Université Pierre et Marie Curie; Francia. Sorbonne University; Francia
Fil: Moumni, Bouchta El. Université Abdelmalek Essaadi; Marruecos
description The Djibouti Ville Drift is part of a contourite depositional system located on the southern side of the Djibouti Ville Seamount in the Alboran Sea (Western Mediterranean). The sedimentary record of a core located in the drift deposits has been characterized to achieve the possible sediment sources for the Saharan dust supply and the paleocurrent variability related to Mediterranean intermediate waters for the last 133 kyr. Three end-member grain-size distributions characterize the sediment record transported by the bottom current to address the different aeolian populations, i.e., coarse EM1, silty EM2, and fine EM3. For these particles, the most likely source areas are the Saharan sedimentary basins and deserts, as well as the cratonic basins of the Sahara-Sahel Dust Corridor. The prevalence of these main source areas is shown in the core record, where a noticeable change occurs during the MIS 5 to MIS 4 transition. Some punctual sediment inputs from the seamount have been recognized during sea-level lowstand, but there is no evidence of fluvial supply in the drift deposits. The paleocurrent reconstruction allows the characterizing of the stadial and cold periods by large increases in the mean sortable silt fraction and UP10, which point to an enhanced bottom current strength related to intermediate water masses. Conversely, interglacial periods are characterized by weaker bottom current activity, which is associated with denser deep water masses. These proxies also recorded the intensified Saharan wind transport that occurred during interstadial/stadial transitions. All these results point to the importance of combining sediment source areas with major climatic oscillations and paleocurrent variability in palaeoceanographic sedimentary archives, which may help to develop future climate prediction models.
publishDate 2019
dc.date.none.fl_str_mv 2019-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/151644
López González, Nieves; Alonso, Belén; Juan, Carmen; Ercilla, Gemma; Bozzano, Graziella; et al.; 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction; MDPI journals; Geosciences; 9; 8; 8-2019; 1-22
2076-3263
CONICET Digital
CONICET
url http://hdl.handle.net/11336/151644
identifier_str_mv López González, Nieves; Alonso, Belén; Juan, Carmen; Ercilla, Gemma; Bozzano, Graziella; et al.; 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction; MDPI journals; Geosciences; 9; 8; 8-2019; 1-22
2076-3263
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-3263/9/8/345
info:eu-repo/semantics/altIdentifier/doi/10.3390/geosciences9080345
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI journals
publisher.none.fl_str_mv MDPI journals
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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