The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian
Abstract A loess sequence has been sampled continuously at high resolution in Nussloch (Rhine Valley, Germany) for malacological and grain-size analyses between ca. 34 and 20 ka. Molluscan abundance and richness, percentage in hygrophilous species and grain-size index show cyclical variations relate...
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fttriple:oai:gotriple.eu:10670/1.t9f2ze 2023-05-15T16:39:14+02:00 The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian Moine, Olivier Rousseau, Denis-Didier Antoine, Pierre Laboratoire de géographie physique : Environnements Quaternaires et Actuels (LGP) Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York 2008-01-01 https://doi.org/10.1016/j.yqres.2008.02.010 https://hal.archives-ouvertes.fr/hal-02477767 en eng HAL CCSD Elsevier hal-02477767 doi:10.1016/j.yqres.2008.02.010 10670/1.t9f2ze https://hal.archives-ouvertes.fr/hal-02477767 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research Quaternary Research, Elsevier, 2008, 70 (1), pp.91--104. ⟨10.1016/j.yqres.2008.02.010⟩ envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2008 fttriple https://doi.org/10.1016/j.yqres.2008.02.010 2023-01-22T18:22:00Z Abstract A loess sequence has been sampled continuously at high resolution in Nussloch (Rhine Valley, Germany) for malacological and grain-size analyses between ca. 34 and 20 ka. Molluscan abundance and richness, percentage in hygrophilous species and grain-size index show cyclical variations related to the lithological loess\textendashgley alternation. Major molluscan abundance maxima were triggered by temperature increases through an enhancement of the reproduction cycle, whereas cyclical richness fluctuations and percentage in hygrophilous species reflect variations in local humidity and changes in the environmental mosaic. Malacological parameters allow the distinction of four environmental phases organised in cyclical successions correlated with most of the loess\textendashgley doublets. The correlation of the grain-size index of the Nussloch loess sequence with the dust content of the GRIP ice core demonstrates the synchronicity of major molluscan abundance maxima and δ 18 O increases characterising temperature increases during Dansgaard\textendashOeschger interstades. A schematic model is proposed to link the North Atlantic Dansgaard\textendashOeschger climatic oscillations with local environmental changes indicated by both malacofauna and pedostratigraphy. This malacological study of the Nussloch loess sequence thus provides new information about the response of terrestrial loessic palaeoenvironments to millennial-timescale climatic fluctuations during the Upper Weichselian (∼ marine isotope stage 2 (MIS 2) and end of MIS 3). Article in Journal/Newspaper ice core North Atlantic Unknown Doublets ENVELOPE(98.667,98.667,-66.417,-66.417) Doublets The ENVELOPE(98.667,98.667,-66.417,-66.417) Quaternary Research 70 1 91 104 |
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Open Polar |
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Unknown |
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language |
English |
topic |
envir geo |
spellingShingle |
envir geo Moine, Olivier Rousseau, Denis-Didier Antoine, Pierre The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian |
topic_facet |
envir geo |
description |
Abstract A loess sequence has been sampled continuously at high resolution in Nussloch (Rhine Valley, Germany) for malacological and grain-size analyses between ca. 34 and 20 ka. Molluscan abundance and richness, percentage in hygrophilous species and grain-size index show cyclical variations related to the lithological loess\textendashgley alternation. Major molluscan abundance maxima were triggered by temperature increases through an enhancement of the reproduction cycle, whereas cyclical richness fluctuations and percentage in hygrophilous species reflect variations in local humidity and changes in the environmental mosaic. Malacological parameters allow the distinction of four environmental phases organised in cyclical successions correlated with most of the loess\textendashgley doublets. The correlation of the grain-size index of the Nussloch loess sequence with the dust content of the GRIP ice core demonstrates the synchronicity of major molluscan abundance maxima and δ 18 O increases characterising temperature increases during Dansgaard\textendashOeschger interstades. A schematic model is proposed to link the North Atlantic Dansgaard\textendashOeschger climatic oscillations with local environmental changes indicated by both malacofauna and pedostratigraphy. This malacological study of the Nussloch loess sequence thus provides new information about the response of terrestrial loessic palaeoenvironments to millennial-timescale climatic fluctuations during the Upper Weichselian (∼ marine isotope stage 2 (MIS 2) and end of MIS 3). |
author2 |
Laboratoire de géographie physique : Environnements Quaternaires et Actuels (LGP) Université Paris 1 Panthéon-Sorbonne (UP1)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York |
format |
Article in Journal/Newspaper |
author |
Moine, Olivier Rousseau, Denis-Didier Antoine, Pierre |
author_facet |
Moine, Olivier Rousseau, Denis-Didier Antoine, Pierre |
author_sort |
Moine, Olivier |
title |
The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian |
title_short |
The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian |
title_full |
The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian |
title_fullStr |
The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian |
title_full_unstemmed |
The Impact of Dansgaard\textendashOeschger Cycles on the Loessic Environment and Malacofauna of Nussloch (Germany) during the Upper Weichselian |
title_sort |
impact of dansgaard\textendashoeschger cycles on the loessic environment and malacofauna of nussloch (germany) during the upper weichselian |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://doi.org/10.1016/j.yqres.2008.02.010 https://hal.archives-ouvertes.fr/hal-02477767 |
long_lat |
ENVELOPE(98.667,98.667,-66.417,-66.417) ENVELOPE(98.667,98.667,-66.417,-66.417) |
geographic |
Doublets Doublets The |
geographic_facet |
Doublets Doublets The |
genre |
ice core North Atlantic |
genre_facet |
ice core North Atlantic |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research Quaternary Research, Elsevier, 2008, 70 (1), pp.91--104. ⟨10.1016/j.yqres.2008.02.010⟩ |
op_relation |
hal-02477767 doi:10.1016/j.yqres.2008.02.010 10670/1.t9f2ze https://hal.archives-ouvertes.fr/hal-02477767 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1016/j.yqres.2008.02.010 |
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Quaternary Research |
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70 |
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1 |
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91 |
op_container_end_page |
104 |
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