The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be
International audience Recent synoptic studies have summarized the former spatial extent and chronology of the last Scandinavian Ice Sheet (SIS) and provide exceptional compilations of empirical datasets. The latter represent the primary source of information for the modelling community to test and...
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Online Access: | https://hal.science/hal-02051718 https://doi.org/10.1016/j.quascirev.2018.09.032 |
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ftunivparis1:oai:HAL:hal-02051718v1 2024-06-23T07:53:45+00:00 The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be Rinterknecht, Vincent Hang, Tiit Gorlach, Aleksandr Kohv, Marko Kalla, Katrin Subetto, Dmitry Bourlès, Didier Leanni, Laëtitia Guillou, Valery Aster, Team 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) Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia University of Tartu Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2018-11 https://hal.science/hal-02051718 https://doi.org/10.1016/j.quascirev.2018.09.032 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2018.09.032 hal-02051718 https://hal.science/hal-02051718 doi:10.1016/j.quascirev.2018.09.032 PRODINRA: 468111 WOS: 000449900900006 ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02051718 Quaternary Science Reviews, 2018, 200, pp.106-113. ⟨10.1016/j.quascirev.2018.09.032⟩ heights Cosmogenic 10Be Russia Valday Scandinavian ice sheet Late weichselian LGM NW [SDU]Sciences of the Universe [physics] [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2018 ftunivparis1 https://doi.org/10.1016/j.quascirev.2018.09.032 2024-06-10T23:58:18Z International audience Recent synoptic studies have summarized the former spatial extent and chronology of the last Scandinavian Ice Sheet (SIS) and provide exceptional compilations of empirical datasets. The latter represent the primary source of information for the modelling community to test and develop thermomechanical ice sheet model, which are then further embedded into climatic and general circulation models. The Last Glacial Maximum (LGM) extent and chronology of the SIS across continental Europe were highlighted as being the least well-known thus generating the biggest uncertainties in the reconstruction of the ice sheet. While early geomorphological studies of the ice sheet marginal belts are numerous and detailed in western Russia, geochronological data are virtually inexistent. In an attempt to fill in this gap, we conducted a series of sampling campaigns for surface exposure dating using 10Be in the western and northwestern regions of Russia. We present here the first results from the Valday Heights where glacial deposits constitute well-preserved margins of the SIS. A total of 16 samples firmly establish the timing of the LGM in the Valday Heights at 20.1 ± 0.4 ka. The Valday Heights acted as a natural wall for the last maximum advance of the SIS during MIS2, constraining the eastern flank of the Ladoga-Ilmen-Lovat ice stream to the west of the hills. The Valday Heights were only overran by previously more extensive glacial advances as suggested by older exposure ages obtain on erratic boulders (31.2 ± 1.4 to 47.1 ± 1.5 ka) located east of the LGM limit. Article in Journal/Newspaper Ice Sheet Université Paris 1 Panthéon-Sorbonne: HAL Valday ENVELOPE(35.513,35.513,63.429,63.429) Quaternary Science Reviews 200 106 113 |
institution |
Open Polar |
collection |
Université Paris 1 Panthéon-Sorbonne: HAL |
op_collection_id |
ftunivparis1 |
language |
English |
topic |
heights Cosmogenic 10Be Russia Valday Scandinavian ice sheet Late weichselian LGM NW [SDU]Sciences of the Universe [physics] [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
heights Cosmogenic 10Be Russia Valday Scandinavian ice sheet Late weichselian LGM NW [SDU]Sciences of the Universe [physics] [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Rinterknecht, Vincent Hang, Tiit Gorlach, Aleksandr Kohv, Marko Kalla, Katrin Subetto, Dmitry Bourlès, Didier Leanni, Laëtitia Guillou, Valery Aster, Team The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be |
topic_facet |
heights Cosmogenic 10Be Russia Valday Scandinavian ice sheet Late weichselian LGM NW [SDU]Sciences of the Universe [physics] [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Recent synoptic studies have summarized the former spatial extent and chronology of the last Scandinavian Ice Sheet (SIS) and provide exceptional compilations of empirical datasets. The latter represent the primary source of information for the modelling community to test and develop thermomechanical ice sheet model, which are then further embedded into climatic and general circulation models. The Last Glacial Maximum (LGM) extent and chronology of the SIS across continental Europe were highlighted as being the least well-known thus generating the biggest uncertainties in the reconstruction of the ice sheet. While early geomorphological studies of the ice sheet marginal belts are numerous and detailed in western Russia, geochronological data are virtually inexistent. In an attempt to fill in this gap, we conducted a series of sampling campaigns for surface exposure dating using 10Be in the western and northwestern regions of Russia. We present here the first results from the Valday Heights where glacial deposits constitute well-preserved margins of the SIS. A total of 16 samples firmly establish the timing of the LGM in the Valday Heights at 20.1 ± 0.4 ka. The Valday Heights acted as a natural wall for the last maximum advance of the SIS during MIS2, constraining the eastern flank of the Ladoga-Ilmen-Lovat ice stream to the west of the hills. The Valday Heights were only overran by previously more extensive glacial advances as suggested by older exposure ages obtain on erratic boulders (31.2 ± 1.4 to 47.1 ± 1.5 ka) located east of the LGM limit. |
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) Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia University of Tartu Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Rinterknecht, Vincent Hang, Tiit Gorlach, Aleksandr Kohv, Marko Kalla, Katrin Subetto, Dmitry Bourlès, Didier Leanni, Laëtitia Guillou, Valery Aster, Team |
author_facet |
Rinterknecht, Vincent Hang, Tiit Gorlach, Aleksandr Kohv, Marko Kalla, Katrin Subetto, Dmitry Bourlès, Didier Leanni, Laëtitia Guillou, Valery Aster, Team |
author_sort |
Rinterknecht, Vincent |
title |
The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be |
title_short |
The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be |
title_full |
The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be |
title_fullStr |
The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be |
title_full_unstemmed |
The Last Glacial Maximum extent of the Scandinavian Ice Sheet in the Valday Heights, western Russia: Evidence from cosmogenic surface exposure dating using 10Be |
title_sort |
last glacial maximum extent of the scandinavian ice sheet in the valday heights, western russia: evidence from cosmogenic surface exposure dating using 10be |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02051718 https://doi.org/10.1016/j.quascirev.2018.09.032 |
long_lat |
ENVELOPE(35.513,35.513,63.429,63.429) |
geographic |
Valday |
geographic_facet |
Valday |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-02051718 Quaternary Science Reviews, 2018, 200, pp.106-113. ⟨10.1016/j.quascirev.2018.09.032⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2018.09.032 hal-02051718 https://hal.science/hal-02051718 doi:10.1016/j.quascirev.2018.09.032 PRODINRA: 468111 WOS: 000449900900006 |
op_doi |
https://doi.org/10.1016/j.quascirev.2018.09.032 |
container_title |
Quaternary Science Reviews |
container_volume |
200 |
container_start_page |
106 |
op_container_end_page |
113 |
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1802645562465452032 |