Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy
International audience A lake-level record of Lake Ledro (northern Italy) spans the entire Holocenewith a chronology derived from51 radiocarbon dates. It is based on a specific sedimentological approach that combines data fromfive sediment profiles sampled in distinct locations in the littoral zone....
Published in: | Quaternary Research |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2012
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-00669616 https://hal.archives-ouvertes.fr/hal-00669616/document https://hal.archives-ouvertes.fr/hal-00669616/file/Magny%20et%20al_%202012_cor.pdf https://doi.org/10.1016/j.yqres.2012.01.005 |
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English |
topic |
Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations [SHS.ENVIR]Humanities and Social Sciences/Environmental studies |
spellingShingle |
Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations [SHS.ENVIR]Humanities and Social Sciences/Environmental studies Magny, Michel Joannin, Sébastien Galop, Didier Vannière, Boris Haas, Jean Nicolas Bassetti, M. Bellintani, Paolo Scandolari, Romana Desmet, Marc Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy |
topic_facet |
Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations [SHS.ENVIR]Humanities and Social Sciences/Environmental studies |
description |
International audience A lake-level record of Lake Ledro (northern Italy) spans the entire Holocenewith a chronology derived from51 radiocarbon dates. It is based on a specific sedimentological approach that combines data fromfive sediment profiles sampled in distinct locations in the littoral zone. On a millennial scale, the lake-level record shows two successive periods from 11,700 to 4500 cal yr BP and from 4500 cal yr BP to the present, characterized by lower and higher average lake levels, respectively. In addition to key seasonal and inter-hemispherical changes in insolation, the major hydrological change around 4500 cal yr BP may be related to a non-linear response of the climate system to orbitally-driven gradual decrease in insolation. The Ledro record questions the notion of an accentuated summer rain regime in the northern Mediterranean borderlands during the boreal insolation maximum. Moreover, the Ledro record highlights that the Holocenewas punctuated by successive centennial-scale highstands. Correlations with the Preboreal oscillation and the 8.2 ka event, and comparisonwith the atmospheric 14C residual record, suggest that short-lived lake-level fluctuations developed at Ledro in response to (1) final steps of the deglaciation in the North Atlantic area and (2) variations in solar activity. |
author2 |
Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux (MSHE) Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement Lyon (LGL-TPE) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon) Géographie de l'environnement (GEODE) Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS) University of Innsbruck, Department of Botany Universita “La Sapienza” Roma (Istituto CNR) Università degli Studi di Roma "La Sapienza" = Sapienza University Rome Soprintendenza per i Beni Archeologici di trento Museo delle Palafitte del Lago di Ledro Musée de Ledro Transferts continentaux : forçages anthropiques, climatiques et géodynamiques Institut des Sciences de la Terre d'Orléans (ISTO) Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours-Centre National de la Recherche Scientifique (CNRS) ANR-05-BLAN-0140,JCLAMA,Méthodes mixtes, visualisation et optimisation(2005) |
format |
Article in Journal/Newspaper |
author |
Magny, Michel Joannin, Sébastien Galop, Didier Vannière, Boris Haas, Jean Nicolas Bassetti, M. Bellintani, Paolo Scandolari, Romana Desmet, Marc |
author_facet |
Magny, Michel Joannin, Sébastien Galop, Didier Vannière, Boris Haas, Jean Nicolas Bassetti, M. Bellintani, Paolo Scandolari, Romana Desmet, Marc |
author_sort |
Magny, Michel |
title |
Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy |
title_short |
Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy |
title_full |
Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy |
title_fullStr |
Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy |
title_full_unstemmed |
Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy |
title_sort |
holocene palaeohydrological changes in the northern mediterranean borderlands as reflected by the lake-level record of lake ledro, northeastern italy |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.archives-ouvertes.fr/hal-00669616 https://hal.archives-ouvertes.fr/hal-00669616/document https://hal.archives-ouvertes.fr/hal-00669616/file/Magny%20et%20al_%202012_cor.pdf https://doi.org/10.1016/j.yqres.2012.01.005 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.archives-ouvertes.fr/hal-00669616 Quaternary Research, Elsevier, 2012, 77 (3), pp.382-396. ⟨10.1016/j.yqres.2012.01.005⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2012.01.005 hal-00669616 https://hal.archives-ouvertes.fr/hal-00669616 https://hal.archives-ouvertes.fr/hal-00669616/document https://hal.archives-ouvertes.fr/hal-00669616/file/Magny%20et%20al_%202012_cor.pdf doi:10.1016/j.yqres.2012.01.005 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.yqres.2012.01.005 |
container_title |
Quaternary Research |
container_volume |
77 |
container_issue |
3 |
container_start_page |
382 |
op_container_end_page |
396 |
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1766132893391781888 |
spelling |
ftccsdartic:oai:HAL:hal-00669616v1 2023-05-15T17:34:09+02:00 Holocene palaeohydrological changes in the northern Mediterranean borderlands as reflected by the lake-level record of Lake Ledro, northeastern Italy Magny, Michel Joannin, Sébastien Galop, Didier Vannière, Boris Haas, Jean Nicolas Bassetti, M. Bellintani, Paolo Scandolari, Romana Desmet, Marc Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux (MSHE) Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement Lyon (LGL-TPE) Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon) Géographie de l'environnement (GEODE) Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS) University of Innsbruck, Department of Botany Universita “La Sapienza” Roma (Istituto CNR) Università degli Studi di Roma "La Sapienza" = Sapienza University Rome Soprintendenza per i Beni Archeologici di trento Museo delle Palafitte del Lago di Ledro Musée de Ledro Transferts continentaux : forçages anthropiques, climatiques et géodynamiques Institut des Sciences de la Terre d'Orléans (ISTO) Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Université de Tours-Centre National de la Recherche Scientifique (CNRS) ANR-05-BLAN-0140,JCLAMA,Méthodes mixtes, visualisation et optimisation(2005) 2012 https://hal.archives-ouvertes.fr/hal-00669616 https://hal.archives-ouvertes.fr/hal-00669616/document https://hal.archives-ouvertes.fr/hal-00669616/file/Magny%20et%20al_%202012_cor.pdf https://doi.org/10.1016/j.yqres.2012.01.005 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yqres.2012.01.005 hal-00669616 https://hal.archives-ouvertes.fr/hal-00669616 https://hal.archives-ouvertes.fr/hal-00669616/document https://hal.archives-ouvertes.fr/hal-00669616/file/Magny%20et%20al_%202012_cor.pdf doi:10.1016/j.yqres.2012.01.005 info:eu-repo/semantics/OpenAccess ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.archives-ouvertes.fr/hal-00669616 Quaternary Research, Elsevier, 2012, 77 (3), pp.382-396. ⟨10.1016/j.yqres.2012.01.005⟩ Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations Lacustrine sediments Palaeohydrology Holocene Mediterranean Lake-level fluctuations [SHS.ENVIR]Humanities and Social Sciences/Environmental studies info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.1016/j.yqres.2012.01.005 2021-11-07T03:53:44Z International audience A lake-level record of Lake Ledro (northern Italy) spans the entire Holocenewith a chronology derived from51 radiocarbon dates. It is based on a specific sedimentological approach that combines data fromfive sediment profiles sampled in distinct locations in the littoral zone. On a millennial scale, the lake-level record shows two successive periods from 11,700 to 4500 cal yr BP and from 4500 cal yr BP to the present, characterized by lower and higher average lake levels, respectively. In addition to key seasonal and inter-hemispherical changes in insolation, the major hydrological change around 4500 cal yr BP may be related to a non-linear response of the climate system to orbitally-driven gradual decrease in insolation. The Ledro record questions the notion of an accentuated summer rain regime in the northern Mediterranean borderlands during the boreal insolation maximum. Moreover, the Ledro record highlights that the Holocenewas punctuated by successive centennial-scale highstands. Correlations with the Preboreal oscillation and the 8.2 ka event, and comparisonwith the atmospheric 14C residual record, suggest that short-lived lake-level fluctuations developed at Ledro in response to (1) final steps of the deglaciation in the North Atlantic area and (2) variations in solar activity. Article in Journal/Newspaper North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Quaternary Research 77 3 382 396 |