Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin

Comunicación oral presentada en 38th International Meeting of Sedimentology in Huelva, Spain, June 26-28, 2025

Detalles Bibliográficos
Autores: Lobo, Francisco José, Cerrillo-Escoriza, Javier, Puga-Bernabéu, Ángel, Bárcenas, Patricia, Cabrera, Cecilia, Durán, Ruth, López-Quirós, Adrián, Luján, María, Mendes, Isabel, Pérez Asensio, José Noel, Sánchez, María José, Sánchez-Guillamón, Olga, Verweirder, Lotte
Tipo de recurso: otro
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/404949
Acceso en línea:http://hdl.handle.net/10261/404949
Access Level:acceso abierto
Palabra clave:Bedforms
Turbiditic flows
Submarine delta
Submarine canyon
Alboran Sea
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spelling Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean BasinLobo, Francisco JoséCerrillo-Escoriza, JavierPuga-Bernabéu, ÁngelBárcenas, PatriciaCabrera, CeciliaDurán, RuthLópez-Quirós, AdriánLuján, MaríaMendes, IsabelPérez Asensio, José NoelSánchez, María JoséSánchez-Guillamón, OlgaVerweirder, LotteBedformsTurbiditic flowsSubmarine deltaSubmarine canyonAlboran SeaComunicación oral presentada en 38th International Meeting of Sedimentology in Huelva, Spain, June 26-28, 2025Source-to-sink systems are very much influenced by the prevalence of either depositional or erosional sedimentary systems in continental margins. This study examines the spatial variability of bedforms in both depositional and erosional settings in the northern margin of the Alboran Sea, focusing on the submarine delta off the Guadalfeo River and the shelf-incising Carchuna Canyon. The different representation of bedforms was analyzed to compare genetic flows in those contrasting environments. Bathymetric imagery, shallow acoustic data and diverse sedimentary records were used to achieve those goals. Datasets were collected during the ALSSOMAR-S2S and SANIMED oceanographic cruises onboard RV Sarmiento de Gamboa. The sub-surface stratigraphy of the Guadalfeo submarine delta is composed of four acoustic units overlying a high-amplitude seismic horizon interpreted as the last lowstand surface. Undulatory patterns attributed to bedform generation are restricted to the most recent wedge-shaped unit, where stratified undulations are intercalated with several chaotic sheets. The pervasive undulatory pattern of the most recent prodeltaic unit is imprinted in the present-day bathymetry, with two major bedform fields. In the main active channel of the Carchuna Canyon, discontinuous high-amplitude, structureless undulating reflections were observed. Outside this channel, four acoustic units have been characterized in the shallow subsurface of the associated sedimentary lobe. Undulatory seismic facies show a high reflectivity acoustic response and are separated by sheets with semi-transparent acoustic responses. Bedform relief is maintained by the more recent semi-transparent sheet, resulting in conspicuous bedforms on the present-day seafloor of the sedimentary lobe. In the study area, bedform acoustic patterns and morphometric parameters offer useful insights into the importance of turbiditic flows in each sedimentary environment, contributing to the understanding of sediment transport patterns under distinct source-to-sink systems.International Association of SedimentologistsConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520252025info:eu-repo/semantics/otherhttp://purl.org/coar/resource_type/c_3248Publisher's versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookParthttp://hdl.handle.net/10261/404949reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4049492026-05-22T06:33:51Z
dc.title.none.fl_str_mv Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
title Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
spellingShingle Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
Lobo, Francisco José
Bedforms
Turbiditic flows
Submarine delta
Submarine canyon
Alboran Sea
title_short Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
title_full Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
title_fullStr Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
title_full_unstemmed Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
title_sort Bedform variability in depositional versus erosional source to sink systems in the northern margin of the Alboran Sea, Western Mediterranean Basin
dc.creator.none.fl_str_mv Lobo, Francisco José
Cerrillo-Escoriza, Javier
Puga-Bernabéu, Ángel
Bárcenas, Patricia
Cabrera, Cecilia
Durán, Ruth
López-Quirós, Adrián
Luján, María
Mendes, Isabel
Pérez Asensio, José Noel
Sánchez, María José
Sánchez-Guillamón, Olga
Verweirder, Lotte
author Lobo, Francisco José
author_facet Lobo, Francisco José
Cerrillo-Escoriza, Javier
Puga-Bernabéu, Ángel
Bárcenas, Patricia
Cabrera, Cecilia
Durán, Ruth
López-Quirós, Adrián
Luján, María
Mendes, Isabel
Pérez Asensio, José Noel
Sánchez, María José
Sánchez-Guillamón, Olga
Verweirder, Lotte
author_role author
author2 Cerrillo-Escoriza, Javier
Puga-Bernabéu, Ángel
Bárcenas, Patricia
Cabrera, Cecilia
Durán, Ruth
López-Quirós, Adrián
Luján, María
Mendes, Isabel
Pérez Asensio, José Noel
Sánchez, María José
Sánchez-Guillamón, Olga
Verweirder, Lotte
author2_role author
author
author
author
author
author
author
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 Bedforms
Turbiditic flows
Submarine delta
Submarine canyon
Alboran Sea
topic Bedforms
Turbiditic flows
Submarine delta
Submarine canyon
Alboran Sea
description Comunicación oral presentada en 38th International Meeting of Sedimentology in Huelva, Spain, June 26-28, 2025
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/other
http://purl.org/coar/resource_type/c_3248
Publisher's version
info:eu-repo/semantics/publishedVersion
dc.type.openaire.fl_str_mv info:eu-repo/semantics/bookPart
format other
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/404949
url http://hdl.handle.net/10261/404949
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv International Association of Sedimentologists
publisher.none.fl_str_mv International Association of Sedimentologists
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_ 1869412853994225664
score 15,81155

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