Quantitative characterisation of contourite deposits using medical CT

15 pages, 10 figures, 5 tables

Detalles Bibliográficos
Autores: Vandorpe, Thomas, Collart, Tim, Cnudde, Veerle, Lebreiro, Susana M., Hernández-Molina, Francisco J., Alonso, Belén, Mena, Anxo, Antón López, Laura Ángela, Van Rooij, David
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/195141
Acceso en línea:http://hdl.handle.net/10261/195141
Access Level:acceso abierto
Palabra clave:Bottom currents
Grain size
Alboran Sea
Gulf of Cadiz
Medical Computed Tomography (CT)
Contourites
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spelling Quantitative characterisation of contourite deposits using medical CTVandorpe, ThomasCollart, TimCnudde, VeerleLebreiro, Susana M.Hernández-Molina, Francisco J.Alonso, BelénMena, AnxoAntón López, Laura ÁngelaVan Rooij, DavidBottom currentsGrain sizeAlboran SeaGulf of CadizMedical Computed Tomography (CT)Contourites15 pages, 10 figures, 5 tablesFive sediment cores, retrieved from four different depositional contouritic morphological settings (a sheeted drift, a confined mounded drift, a mounded elongated drift and a plastered drift) from the Northern Gulf of Cadiz and the Alboran Sea have been analysed using medical X-ray computed tomography (medical CT). A quantitative approach has been used, resulting in a workflow that delineates several radio-density ranges based on the Hounsfield Unit (HU) histogram of each core and tracks these ranges throughout the cores. In order to derive the geological significance, the radio-density ranges of all cores have been compared to non-destructive, continuous chemical and physical proxies as well as grain size measurements. The highest correlations occurred between high HU and proxies indicating elevated bottom currents, such as Zr/Al and sortable silt. Additionally, a continuous increase in average HU and inferred bottom current velocities, needed for the creation of the specific contourite setting, could be observed throughout the five cores. Despite imperfections and the requirement of additional research, promising results have been obtained which could improve the detection of diagnostic criteria for contourites. Moreover, the CT data can give more conclusive evidence on the nature of the (contourite) sedimentary sequence boundariesThis research project was conducted in the framework of the FWO grant “Contourite 3D” (project number 1.5.247.13N) and was assisted by “The Drifters Research Group” of the Royal Holloway University of London (UK). The cores and the physical and geochemical analyses on them were acquired in the framework of the following projects: CTM 2012-39599-C03, CTM2008-06399-CO4-02/MAR, CTM2016-75129- C3-1-R and CGL2016-80445-RPeer ReviewedElsevierRoyal Holloway, University of LondonMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/195141reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-75129- C3-1-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2016-80445-Rhttps://doi.org/10.1016/j.geomorph.2011.12.036Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1951412026-05-22T06:33:51Z
dc.title.none.fl_str_mv Quantitative characterisation of contourite deposits using medical CT
title Quantitative characterisation of contourite deposits using medical CT
spellingShingle Quantitative characterisation of contourite deposits using medical CT
Vandorpe, Thomas
Bottom currents
Grain size
Alboran Sea
Gulf of Cadiz
Medical Computed Tomography (CT)
Contourites
title_short Quantitative characterisation of contourite deposits using medical CT
title_full Quantitative characterisation of contourite deposits using medical CT
title_fullStr Quantitative characterisation of contourite deposits using medical CT
title_full_unstemmed Quantitative characterisation of contourite deposits using medical CT
title_sort Quantitative characterisation of contourite deposits using medical CT
dc.creator.none.fl_str_mv Vandorpe, Thomas
Collart, Tim
Cnudde, Veerle
Lebreiro, Susana M.
Hernández-Molina, Francisco J.
Alonso, Belén
Mena, Anxo
Antón López, Laura Ángela
Van Rooij, David
author Vandorpe, Thomas
author_facet Vandorpe, Thomas
Collart, Tim
Cnudde, Veerle
Lebreiro, Susana M.
Hernández-Molina, Francisco J.
Alonso, Belén
Mena, Anxo
Antón López, Laura Ángela
Van Rooij, David
author_role author
author2 Collart, Tim
Cnudde, Veerle
Lebreiro, Susana M.
Hernández-Molina, Francisco J.
Alonso, Belén
Mena, Anxo
Antón López, Laura Ángela
Van Rooij, David
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Royal Holloway, University of London
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Bottom currents
Grain size
Alboran Sea
Gulf of Cadiz
Medical Computed Tomography (CT)
Contourites
topic Bottom currents
Grain size
Alboran Sea
Gulf of Cadiz
Medical Computed Tomography (CT)
Contourites
description 15 pages, 10 figures, 5 tables
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/195141
url http://hdl.handle.net/10261/195141
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-75129- C3-1-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2016-80445-R
https://doi.org/10.1016/j.geomorph.2011.12.036
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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