Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean

[EN]The burial of phosphorus (P) in continental margin sediments is a critical component of the marine reactive P budget, and thus an important factor in marine biological productivity. We determined downcore records of P from a site drilled on the upper slope of the Gulf of Lions (PRGL 1), northwes...

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Autores: Cortina Guerra, Aleix, Filippelli, Gabriel, Ochoa Lozano, Diana Paola, Sierro Sánchez, Francisco Javier, Flores Villarejo, José Abel, Grimalt, Joan O.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/146677
Acceso en línea:http://hdl.handle.net/10366/146677
Access Level:acceso abierto
Palabra clave:Gulf of lions
MIS 8
Paleoredox
Phosphorus paleoproductivity
Termination IV
2506 Geología
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spelling Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern MediterraneanCortina Guerra, AleixFilippelli, GabrielOchoa Lozano, Diana PaolaSierro Sánchez, Francisco JavierFlores Villarejo, José AbelGrimalt, Joan O.Gulf of lionsMIS 8PaleoredoxPhosphorus paleoproductivityTermination IV2506 Geología[EN]The burial of phosphorus (P) in continental margin sediments is a critical component of the marine reactive P budget, and thus an important factor in marine biological productivity. We determined downcore records of P from a site drilled on the upper slope of the Gulf of Lions (PRGL 1), northwestern Mediterranean Sea. Changes in total P content were monitored from Marine Isotope Stage (MIS) 6 to MIS 11. In addition, in two selected intervals (248–277 ka and 306–342 ka) the total P record was expanded by adding detailed geochemical analyses of the various P fractions, including oxyhydroxide-associated P, authigenic P, detrital P and organic P. Increased sedimentation rates during glacials owing to seaward migration of the Rhone's mouth, enhanced the burial of reactive P (oxyhydroxide-associated + authigenic + organic) phases by decreasing its time at the reactive sediment/water interface, in turn resulting in increasing proportion of authigenic to detrital phosphorus. The inverse was found for interglacial stages.Elsevier B.V.202120212018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/146677reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1466772026-06-07T06:28:51Z
dc.title.none.fl_str_mv Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
title Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
spellingShingle Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
Cortina Guerra, Aleix
Gulf of lions
MIS 8
Paleoredox
Phosphorus paleoproductivity
Termination IV
2506 Geología
title_short Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
title_full Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
title_fullStr Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
title_full_unstemmed Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
title_sort Climate-driven changes in sedimentation rate influence phosphorus burial along continental margins of the northwestern Mediterranean
dc.creator.none.fl_str_mv Cortina Guerra, Aleix
Filippelli, Gabriel
Ochoa Lozano, Diana Paola
Sierro Sánchez, Francisco Javier
Flores Villarejo, José Abel
Grimalt, Joan O.
author Cortina Guerra, Aleix
author_facet Cortina Guerra, Aleix
Filippelli, Gabriel
Ochoa Lozano, Diana Paola
Sierro Sánchez, Francisco Javier
Flores Villarejo, José Abel
Grimalt, Joan O.
author_role author
author2 Filippelli, Gabriel
Ochoa Lozano, Diana Paola
Sierro Sánchez, Francisco Javier
Flores Villarejo, José Abel
Grimalt, Joan O.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Gulf of lions
MIS 8
Paleoredox
Phosphorus paleoproductivity
Termination IV
2506 Geología
topic Gulf of lions
MIS 8
Paleoredox
Phosphorus paleoproductivity
Termination IV
2506 Geología
description [EN]The burial of phosphorus (P) in continental margin sediments is a critical component of the marine reactive P budget, and thus an important factor in marine biological productivity. We determined downcore records of P from a site drilled on the upper slope of the Gulf of Lions (PRGL 1), northwestern Mediterranean Sea. Changes in total P content were monitored from Marine Isotope Stage (MIS) 6 to MIS 11. In addition, in two selected intervals (248–277 ka and 306–342 ka) the total P record was expanded by adding detailed geochemical analyses of the various P fractions, including oxyhydroxide-associated P, authigenic P, detrital P and organic P. Increased sedimentation rates during glacials owing to seaward migration of the Rhone's mouth, enhanced the burial of reactive P (oxyhydroxide-associated + authigenic + organic) phases by decreasing its time at the reactive sediment/water interface, in turn resulting in increasing proportion of authigenic to detrital phosphorus. The inverse was found for interglacial stages.
publishDate 2018
dc.date.none.fl_str_mv 2018
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/146677
url http://hdl.handle.net/10366/146677
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869417384981299200
score 15,301629

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