Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt

Expanded marine Holocene archives are relatively scarce in the Mediterranean Sea because most of the sediments were trapped in catchment areas during this period. Mud belts are the most suitable targets to access expanded Holocene records. These sedimentary bodies represent excellent archives for th...

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Published in:Climate of the Past
Main Authors: Bassetti, Maria-Angela, Berné, Serge, Sicre, Marie-Alexandrine, Dennielou, Bernard, Alonso, Yoann, Buscail, Roselyne, Jalali, Bassem, Hebert, Bertil, Menniti, Christophe
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2016
Subjects:
Online Access:https://doi.org/10.5194/cp-12-1539-2016
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spelling ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00011862 2023-05-15T17:31:31+02:00 Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt Bassetti, Maria-Angela Berné, Serge Sicre, Marie-Alexandrine Dennielou, Bernard Alonso, Yoann Buscail, Roselyne Jalali, Bassem Hebert, Bertil Menniti, Christophe 2016-07 electronic https://doi.org/10.5194/cp-12-1539-2016 https://noa.gwlb.de/receive/cop_mods_00011862 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011819/cp-12-1539-2016.pdf https://cp.copernicus.org/articles/12/1539/2016/cp-12-1539-2016.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-12-1539-2016 https://noa.gwlb.de/receive/cop_mods_00011862 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011819/cp-12-1539-2016.pdf https://cp.copernicus.org/articles/12/1539/2016/cp-12-1539-2016.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2016 ftnonlinearchiv https://doi.org/10.5194/cp-12-1539-2016 2022-02-08T22:56:20Z Expanded marine Holocene archives are relatively scarce in the Mediterranean Sea because most of the sediments were trapped in catchment areas during this period. Mud belts are the most suitable targets to access expanded Holocene records. These sedimentary bodies represent excellent archives for the study of sea–land interactions and notably the impact of the hydrological activity on sediment accumulation. We retrieved a 7.2 m long sediment core from the Rhône mud belt in the Gulf of Lions in an area where the average accumulation rate is ca. 0.70 m 1000 yr−1. This core thus provides a continuous and high-resolution record of the last 10 ka cal BP. A multiproxy dataset (XRF core scan, 14C dates, grain size and organic-matter analysis) combined with seismic stratigraphic analysis was used to document decadal to centennial changes in the Rhône hydrological activity. Our results show that (1) the early Holocene was characterized by high sediment delivery likely indicative of local intense (but short-duration) rainfall events, (2) important sediment delivery around 7 ka cal BP presumably related to increased river flux, (3) a progressive increase in continental/marine input during the mid-Holocene despite increased distance from river outlets due to sea-level rise possibly related to higher atmospheric humidity caused by the southward migration of the storm tracks in the North Atlantic, (4) multidecadal to centennial humid events took place in the late Holocene. Some of these events correspond to the cold periods identified in the North Atlantic (Little Ice Age, LIA; Dark Ages Cold Period) and also coincide with time intervals of major floods in the northern Alps. Other humid events are also observed during relatively warm periods (Roman Humid Period and Medieval Climate Anomaly). Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Climate of the Past 12 7 1539 1553
institution Open Polar
collection Niedersächsisches Online-Archiv NOA
op_collection_id ftnonlinearchiv
language English
topic article
Verlagsveröffentlichung
spellingShingle article
Verlagsveröffentlichung
Bassetti, Maria-Angela
Berné, Serge
Sicre, Marie-Alexandrine
Dennielou, Bernard
Alonso, Yoann
Buscail, Roselyne
Jalali, Bassem
Hebert, Bertil
Menniti, Christophe
Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt
topic_facet article
Verlagsveröffentlichung
description Expanded marine Holocene archives are relatively scarce in the Mediterranean Sea because most of the sediments were trapped in catchment areas during this period. Mud belts are the most suitable targets to access expanded Holocene records. These sedimentary bodies represent excellent archives for the study of sea–land interactions and notably the impact of the hydrological activity on sediment accumulation. We retrieved a 7.2 m long sediment core from the Rhône mud belt in the Gulf of Lions in an area where the average accumulation rate is ca. 0.70 m 1000 yr−1. This core thus provides a continuous and high-resolution record of the last 10 ka cal BP. A multiproxy dataset (XRF core scan, 14C dates, grain size and organic-matter analysis) combined with seismic stratigraphic analysis was used to document decadal to centennial changes in the Rhône hydrological activity. Our results show that (1) the early Holocene was characterized by high sediment delivery likely indicative of local intense (but short-duration) rainfall events, (2) important sediment delivery around 7 ka cal BP presumably related to increased river flux, (3) a progressive increase in continental/marine input during the mid-Holocene despite increased distance from river outlets due to sea-level rise possibly related to higher atmospheric humidity caused by the southward migration of the storm tracks in the North Atlantic, (4) multidecadal to centennial humid events took place in the late Holocene. Some of these events correspond to the cold periods identified in the North Atlantic (Little Ice Age, LIA; Dark Ages Cold Period) and also coincide with time intervals of major floods in the northern Alps. Other humid events are also observed during relatively warm periods (Roman Humid Period and Medieval Climate Anomaly).
format Article in Journal/Newspaper
author Bassetti, Maria-Angela
Berné, Serge
Sicre, Marie-Alexandrine
Dennielou, Bernard
Alonso, Yoann
Buscail, Roselyne
Jalali, Bassem
Hebert, Bertil
Menniti, Christophe
author_facet Bassetti, Maria-Angela
Berné, Serge
Sicre, Marie-Alexandrine
Dennielou, Bernard
Alonso, Yoann
Buscail, Roselyne
Jalali, Bassem
Hebert, Bertil
Menniti, Christophe
author_sort Bassetti, Maria-Angela
title Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt
title_short Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt
title_full Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt
title_fullStr Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt
title_full_unstemmed Holocene hydrological changes in the Rhône River (NW Mediterranean) as recorded in the marine mud belt
title_sort holocene hydrological changes in the rhône river (nw mediterranean) as recorded in the marine mud belt
publisher Copernicus Publications
publishDate 2016
url https://doi.org/10.5194/cp-12-1539-2016
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https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011819/cp-12-1539-2016.pdf
https://cp.copernicus.org/articles/12/1539/2016/cp-12-1539-2016.pdf
genre North Atlantic
genre_facet North Atlantic
op_relation Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332
https://doi.org/10.5194/cp-12-1539-2016
https://noa.gwlb.de/receive/cop_mods_00011862
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011819/cp-12-1539-2016.pdf
https://cp.copernicus.org/articles/12/1539/2016/cp-12-1539-2016.pdf
op_rights uneingeschränkt
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op_doi https://doi.org/10.5194/cp-12-1539-2016
container_title Climate of the Past
container_volume 12
container_issue 7
container_start_page 1539
op_container_end_page 1553
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