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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Copernicus Publications
2016
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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 |
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English |
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article Verlagsveröffentlichung |
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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 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 |
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 info:eu-repo/semantics/openAccess |
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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1766129145730826240 |