The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France
International audience Much of France remained unglaciated during the Late Quaternary and was subjected to repeated phases of periglacial activity. Numerous periglacial features have been reported but disentangling the environmental and climatic conditions they formed under, the timing and extent of...
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Online Access: | https://hal.science/hal-01723844 https://hal.science/hal-01723844/document https://hal.science/hal-01723844/file/2018%20GPC%20Andrieux%20Thermal%20contraction%20dating.pdf https://doi.org/10.1016/j.gloplacha.2018.01.012 |
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ftinstitutnrap:oai:HAL:hal-01723844v1 2024-02-11T10:07:52+01:00 The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France Andrieux, Eric Bateman, Mark, D Bertran, Pascal De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA) Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS) Department of Geography Sheffield University of Sheffield Sheffield Institut national de recherches archéologiques préventives (Inrap) 2018 https://hal.science/hal-01723844 https://hal.science/hal-01723844/document https://hal.science/hal-01723844/file/2018%20GPC%20Andrieux%20Thermal%20contraction%20dating.pdf https://doi.org/10.1016/j.gloplacha.2018.01.012 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2018.01.012 hal-01723844 https://hal.science/hal-01723844 https://hal.science/hal-01723844/document https://hal.science/hal-01723844/file/2018%20GPC%20Andrieux%20Thermal%20contraction%20dating.pdf doi:10.1016/j.gloplacha.2018.01.012 info:eu-repo/semantics/OpenAccess ISSN: 0921-8181 Global and Planetary Change https://hal.science/hal-01723844 Global and Planetary Change, 2018, 162, pp.84-100. ⟨10.1016/j.gloplacha.2018.01.012⟩ France Luminescence dating Sand wedge OSL Thermal contraction cracking [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2018 ftinstitutnrap https://doi.org/10.1016/j.gloplacha.2018.01.012 2024-01-24T17:28:01Z International audience Much of France remained unglaciated during the Late Quaternary and was subjected to repeated phases of periglacial activity. Numerous periglacial features have been reported but disentangling the environmental and climatic conditions they formed under, the timing and extent of permafrost and the role of seasonal frost has remained elusive. The primary sandy infillings of relict sand-wedges and composite-wedge pseudomorphs record periglacial activity. As they contain well-bleached quartz-rich aeolian material they are suitable for optically stimulated luminescence dating (OSL). This study aims to reconstruct when wedge activity took place in two regions of France; Northern Aquitaine and in the Loire valley. Results from single-grain OSL measurements identify multiple phases of activity within sand wedges which suggest that wedge activity in France occurred at least 11 times over the last 100 ka. The most widespread events of thermal contraction cracking occurred between ca. 30 and 24 ka (Last Permafrost Maximum) which are concomitant with periods of high sand availability (MIS 2). Although most phases of sand-wedge growth correlate well with known Pleistocene cold periods, the identification of wedge activity during late MIS 5 and the Younger Dryas strongly suggests that these features do not only indicate permafrost but also deep seasonal ground freezing in the context of low winter insolation. These data also suggest that the overall young ages yielded by North-European sand-wedges likely result from poor record of periglacial periods concomitant with low sand availability and/or age averaging inherent with standard luminescence methods. Article in Journal/Newspaper permafrost wedge* INRAP: HAL (Institut national de recherches archéologiques préventives) Global and Planetary Change 162 84 100 |
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Open Polar |
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INRAP: HAL (Institut national de recherches archéologiques préventives) |
op_collection_id |
ftinstitutnrap |
language |
English |
topic |
France Luminescence dating Sand wedge OSL Thermal contraction cracking [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
France Luminescence dating Sand wedge OSL Thermal contraction cracking [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Andrieux, Eric Bateman, Mark, D Bertran, Pascal The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France |
topic_facet |
France Luminescence dating Sand wedge OSL Thermal contraction cracking [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience Much of France remained unglaciated during the Late Quaternary and was subjected to repeated phases of periglacial activity. Numerous periglacial features have been reported but disentangling the environmental and climatic conditions they formed under, the timing and extent of permafrost and the role of seasonal frost has remained elusive. The primary sandy infillings of relict sand-wedges and composite-wedge pseudomorphs record periglacial activity. As they contain well-bleached quartz-rich aeolian material they are suitable for optically stimulated luminescence dating (OSL). This study aims to reconstruct when wedge activity took place in two regions of France; Northern Aquitaine and in the Loire valley. Results from single-grain OSL measurements identify multiple phases of activity within sand wedges which suggest that wedge activity in France occurred at least 11 times over the last 100 ka. The most widespread events of thermal contraction cracking occurred between ca. 30 and 24 ka (Last Permafrost Maximum) which are concomitant with periods of high sand availability (MIS 2). Although most phases of sand-wedge growth correlate well with known Pleistocene cold periods, the identification of wedge activity during late MIS 5 and the Younger Dryas strongly suggests that these features do not only indicate permafrost but also deep seasonal ground freezing in the context of low winter insolation. These data also suggest that the overall young ages yielded by North-European sand-wedges likely result from poor record of periglacial periods concomitant with low sand availability and/or age averaging inherent with standard luminescence methods. |
author2 |
De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA) Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS) Department of Geography Sheffield University of Sheffield Sheffield Institut national de recherches archéologiques préventives (Inrap) |
format |
Article in Journal/Newspaper |
author |
Andrieux, Eric Bateman, Mark, D Bertran, Pascal |
author_facet |
Andrieux, Eric Bateman, Mark, D Bertran, Pascal |
author_sort |
Andrieux, Eric |
title |
The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France |
title_short |
The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France |
title_full |
The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France |
title_fullStr |
The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France |
title_full_unstemmed |
The chronology of Late Pleistocene thermal contraction cracking derived from sand wedge OSL dating in central and southern France |
title_sort |
chronology of late pleistocene thermal contraction cracking derived from sand wedge osl dating in central and southern france |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-01723844 https://hal.science/hal-01723844/document https://hal.science/hal-01723844/file/2018%20GPC%20Andrieux%20Thermal%20contraction%20dating.pdf https://doi.org/10.1016/j.gloplacha.2018.01.012 |
genre |
permafrost wedge* |
genre_facet |
permafrost wedge* |
op_source |
ISSN: 0921-8181 Global and Planetary Change https://hal.science/hal-01723844 Global and Planetary Change, 2018, 162, pp.84-100. ⟨10.1016/j.gloplacha.2018.01.012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gloplacha.2018.01.012 hal-01723844 https://hal.science/hal-01723844 https://hal.science/hal-01723844/document https://hal.science/hal-01723844/file/2018%20GPC%20Andrieux%20Thermal%20contraction%20dating.pdf doi:10.1016/j.gloplacha.2018.01.012 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2018.01.012 |
container_title |
Global and Planetary Change |
container_volume |
162 |
container_start_page |
84 |
op_container_end_page |
100 |
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1790606675278823424 |