The Quaternary coversands of southwest France
International audience Detailed stratigraphic analysis and numerical dating (OSL, IRSL, ESR, 14C) of Pleistocene coversands in southwest France enable the construction of a renewed chronostratigraphic framework for sand deposition. The chronological data obtained from sandsheet units testify to the...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2015
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Online Access: | https://univ-rennes.hal.science/hal-01201992 https://univ-rennes.hal.science/hal-01201992/document https://univ-rennes.hal.science/hal-01201992/file/Sitzia-etal_2015.pdf https://doi.org/10.1016/j.quascirev.2015.06.019 |
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Archive Ouverte de l'Université Bordeaux Montaigne - HAL |
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ftunivbordmont |
language |
English |
topic |
OSL Palaeosols Coversand ESR Middle and Late Pleistocene Southwest France [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
OSL Palaeosols Coversand ESR Middle and Late Pleistocene Southwest France [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Sitzia, Luca Bertran, Pascal Bahain, Jean-Jacques Bateman, Mark D. Hernandez, Marion Garon, Henri Lafontaine, Guillaume, De Mercier, Norbert Leroyer, Chantal Queffelec, Alain Voinchet, Pierre The Quaternary coversands of southwest France |
topic_facet |
OSL Palaeosols Coversand ESR Middle and Late Pleistocene Southwest France [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience Detailed stratigraphic analysis and numerical dating (OSL, IRSL, ESR, 14C) of Pleistocene coversands in southwest France enable the construction of a renewed chronostratigraphic framework for sand deposition. The chronological data obtained from sandsheet units testify to the development of transgressive dunefields since at least the Middle Pleistocene (MIS 10). Three main phases of accumulation occurred during the Last Glacial. The oldest one (64–42 ka) is associated with wet sandsheet facies, histic horizons and zibar-type dune fields, which reflect deposition in a context strongly influenced by the groundwater table. The Late Pleniglacial (24–14 ka) corresponds to the main phase of coversand extension in a drier context. Silty gley horizons suggest, however, local interruptions of sand drifting during GS 2.1. Lateglacial stabilization of the coversands may not have occurred before GI-1c (Allerød), which was typified by the development of cumulic arenosols. These were covered by parabolic dunes during the Younger Dryas. The variations in extent of the emerged continental shelf during the glacial–interglacial cycles may explain the uneven geographical distribution of sand deposition through time. Because of coastline retreat up to 100 km north of 45°N during the LGM lowstand, the coversands were unable to reach the northern part of the basin. Comparison with other European regions highlights stronger affinities of the French record with Portugal than with the Netherlands and Great Britain, probably because of reduced influence of permafrost |
author2 |
De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA) Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS) Institut national de recherches archéologiques préventives (Inrap) Muséum national d'Histoire naturelle (MNHN) Histoire naturelle de l'Homme préhistorique (HNHP) Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) University of Sheffield Sheffield Institut de Recherches sur les Archéomatériaux (IRAMAT) Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS) Université Laval Québec (ULaval) Centre de Recherche en Archéologie, Archéosciences, Histoire (CReAAH) Le Mans Université (UM)-Université de Rennes (UR)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes - UFR Histoire, Histoire de l'Art et Archéologie (UFR HHAA) Université de Nantes (UN)-Université de Nantes (UN)-Ministère de la Culture (MC) |
format |
Article in Journal/Newspaper |
author |
Sitzia, Luca Bertran, Pascal Bahain, Jean-Jacques Bateman, Mark D. Hernandez, Marion Garon, Henri Lafontaine, Guillaume, De Mercier, Norbert Leroyer, Chantal Queffelec, Alain Voinchet, Pierre |
author_facet |
Sitzia, Luca Bertran, Pascal Bahain, Jean-Jacques Bateman, Mark D. Hernandez, Marion Garon, Henri Lafontaine, Guillaume, De Mercier, Norbert Leroyer, Chantal Queffelec, Alain Voinchet, Pierre |
author_sort |
Sitzia, Luca |
title |
The Quaternary coversands of southwest France |
title_short |
The Quaternary coversands of southwest France |
title_full |
The Quaternary coversands of southwest France |
title_fullStr |
The Quaternary coversands of southwest France |
title_full_unstemmed |
The Quaternary coversands of southwest France |
title_sort |
quaternary coversands of southwest france |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://univ-rennes.hal.science/hal-01201992 https://univ-rennes.hal.science/hal-01201992/document https://univ-rennes.hal.science/hal-01201992/file/Sitzia-etal_2015.pdf https://doi.org/10.1016/j.quascirev.2015.06.019 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://univ-rennes.hal.science/hal-01201992 Quaternary Science Reviews, 2015, 124, pp.84-105. ⟨10.1016/j.quascirev.2015.06.019⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2015.06.019 hal-01201992 https://univ-rennes.hal.science/hal-01201992 https://univ-rennes.hal.science/hal-01201992/document https://univ-rennes.hal.science/hal-01201992/file/Sitzia-etal_2015.pdf doi:10.1016/j.quascirev.2015.06.019 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2015.06.019 |
container_title |
Quaternary Science Reviews |
container_volume |
124 |
container_start_page |
84 |
op_container_end_page |
105 |
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1810471626721984512 |
spelling |
ftunivbordmont:oai:HAL:hal-01201992v1 2024-09-15T18:30:09+00:00 The Quaternary coversands of southwest France Sitzia, Luca Bertran, Pascal Bahain, Jean-Jacques Bateman, Mark D. Hernandez, Marion Garon, Henri Lafontaine, Guillaume, De Mercier, Norbert Leroyer, Chantal Queffelec, Alain Voinchet, Pierre De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA) Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS) Institut national de recherches archéologiques préventives (Inrap) Muséum national d'Histoire naturelle (MNHN) Histoire naturelle de l'Homme préhistorique (HNHP) Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) University of Sheffield Sheffield Institut de Recherches sur les Archéomatériaux (IRAMAT) Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS) Université Laval Québec (ULaval) Centre de Recherche en Archéologie, Archéosciences, Histoire (CReAAH) Le Mans Université (UM)-Université de Rennes (UR)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes - UFR Histoire, Histoire de l'Art et Archéologie (UFR HHAA) Université de Nantes (UN)-Université de Nantes (UN)-Ministère de la Culture (MC) 2015 https://univ-rennes.hal.science/hal-01201992 https://univ-rennes.hal.science/hal-01201992/document https://univ-rennes.hal.science/hal-01201992/file/Sitzia-etal_2015.pdf https://doi.org/10.1016/j.quascirev.2015.06.019 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2015.06.019 hal-01201992 https://univ-rennes.hal.science/hal-01201992 https://univ-rennes.hal.science/hal-01201992/document https://univ-rennes.hal.science/hal-01201992/file/Sitzia-etal_2015.pdf doi:10.1016/j.quascirev.2015.06.019 info:eu-repo/semantics/OpenAccess ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://univ-rennes.hal.science/hal-01201992 Quaternary Science Reviews, 2015, 124, pp.84-105. ⟨10.1016/j.quascirev.2015.06.019⟩ OSL Palaeosols Coversand ESR Middle and Late Pleistocene Southwest France [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2015 ftunivbordmont https://doi.org/10.1016/j.quascirev.2015.06.019 2024-07-21T23:34:06Z International audience Detailed stratigraphic analysis and numerical dating (OSL, IRSL, ESR, 14C) of Pleistocene coversands in southwest France enable the construction of a renewed chronostratigraphic framework for sand deposition. The chronological data obtained from sandsheet units testify to the development of transgressive dunefields since at least the Middle Pleistocene (MIS 10). Three main phases of accumulation occurred during the Last Glacial. The oldest one (64–42 ka) is associated with wet sandsheet facies, histic horizons and zibar-type dune fields, which reflect deposition in a context strongly influenced by the groundwater table. The Late Pleniglacial (24–14 ka) corresponds to the main phase of coversand extension in a drier context. Silty gley horizons suggest, however, local interruptions of sand drifting during GS 2.1. Lateglacial stabilization of the coversands may not have occurred before GI-1c (Allerød), which was typified by the development of cumulic arenosols. These were covered by parabolic dunes during the Younger Dryas. The variations in extent of the emerged continental shelf during the glacial–interglacial cycles may explain the uneven geographical distribution of sand deposition through time. Because of coastline retreat up to 100 km north of 45°N during the LGM lowstand, the coversands were unable to reach the northern part of the basin. Comparison with other European regions highlights stronger affinities of the French record with Portugal than with the Netherlands and Great Britain, probably because of reduced influence of permafrost Article in Journal/Newspaper permafrost Archive Ouverte de l'Université Bordeaux Montaigne - HAL Quaternary Science Reviews 124 84 105 |