Highly deformed basal ice in the Vostok core, Antarctica
International audience Our paper documents the build‐up of a highly deformed basal ice layer in the basal part of the Vostok ice core. This is done mainly on the basis of an isotopic composition investigation of the ice. Complex deformation in the lower 228 m of the ice sheet has resulted in folding...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2002
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Subjects: | |
Online Access: | https://hal.science/hal-03106876 https://hal.science/hal-03106876/document https://hal.science/hal-03106876/file/2001GL014192.pdf https://doi.org/10.1029/2001GL014192 |
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ftinsu:oai:HAL:hal-03106876v1 |
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openpolar |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
1040 Geochemistry: Isotopic composition/chemistry 1827 Hydrology: Glaciology (1863) 4540 Oceanography: Physical: Ice mechanics and air/sea/ice exchange processes 9310 Information Related to Geographic Region: Antarctica [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
1040 Geochemistry: Isotopic composition/chemistry 1827 Hydrology: Glaciology (1863) 4540 Oceanography: Physical: Ice mechanics and air/sea/ice exchange processes 9310 Information Related to Geographic Region: Antarctica [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Souchez, R. Petit, J.R. Jouzel, J. Simões, J. de Angelis, M. Barkov, N. Stievenard, M. Vimeux, F. Sleewaegen, J. Lorrain, R. Highly deformed basal ice in the Vostok core, Antarctica |
topic_facet |
1040 Geochemistry: Isotopic composition/chemistry 1827 Hydrology: Glaciology (1863) 4540 Oceanography: Physical: Ice mechanics and air/sea/ice exchange processes 9310 Information Related to Geographic Region: Antarctica [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Our paper documents the build‐up of a highly deformed basal ice layer in the basal part of the Vostok ice core. This is done mainly on the basis of an isotopic composition investigation of the ice. Complex deformation in the lower 228 m of the ice sheet has resulted in folding and intermixing of ice at a submetric scale and, for the upper part of this basal sequence, in interbedding of ice layers from distinct origins at a larger scale. This complex deformation occurred at a temperature largely below the pressure‐melting point. The basal ice layer has built upwards and size‐selective incorporation of bed material into the ice has taken place. The documentation of this complex basal deformation has implications for the maximum age of ice that will be useful in paleoclimate studies and for ice sheet dynamics. |
author2 |
Université libre de Bruxelles (ULB) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Arctic and Antarctic Research Institute (AARI) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) Géochrononologie Traceurs Archéométrie (GEOTRAC) |
format |
Article in Journal/Newspaper |
author |
Souchez, R. Petit, J.R. Jouzel, J. Simões, J. de Angelis, M. Barkov, N. Stievenard, M. Vimeux, F. Sleewaegen, J. Lorrain, R. |
author_facet |
Souchez, R. Petit, J.R. Jouzel, J. Simões, J. de Angelis, M. Barkov, N. Stievenard, M. Vimeux, F. Sleewaegen, J. Lorrain, R. |
author_sort |
Souchez, R. |
title |
Highly deformed basal ice in the Vostok core, Antarctica |
title_short |
Highly deformed basal ice in the Vostok core, Antarctica |
title_full |
Highly deformed basal ice in the Vostok core, Antarctica |
title_fullStr |
Highly deformed basal ice in the Vostok core, Antarctica |
title_full_unstemmed |
Highly deformed basal ice in the Vostok core, Antarctica |
title_sort |
highly deformed basal ice in the vostok core, antarctica |
publisher |
HAL CCSD |
publishDate |
2002 |
url |
https://hal.science/hal-03106876 https://hal.science/hal-03106876/document https://hal.science/hal-03106876/file/2001GL014192.pdf https://doi.org/10.1029/2001GL014192 |
genre |
Antarc* Antarctica ice core Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctica ice core Ice Sheet Sea ice |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03106876 Geophysical Research Letters, 2002, 29 (7), ⟨10.1029/2001GL014192⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2001GL014192 hal-03106876 https://hal.science/hal-03106876 https://hal.science/hal-03106876/document https://hal.science/hal-03106876/file/2001GL014192.pdf doi:10.1029/2001GL014192 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2001GL014192 |
container_title |
Geophysical Research Letters |
container_volume |
29 |
container_issue |
7 |
_version_ |
1797573929037987840 |
spelling |
ftinsu:oai:HAL:hal-03106876v1 2024-04-28T08:02:38+00:00 Highly deformed basal ice in the Vostok core, Antarctica Souchez, R. Petit, J.R. Jouzel, J. Simões, J. de Angelis, M. Barkov, N. Stievenard, M. Vimeux, F. Sleewaegen, J. Lorrain, R. Université libre de Bruxelles (ULB) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Arctic and Antarctic Research Institute (AARI) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) Géochrononologie Traceurs Archéométrie (GEOTRAC) 2002 https://hal.science/hal-03106876 https://hal.science/hal-03106876/document https://hal.science/hal-03106876/file/2001GL014192.pdf https://doi.org/10.1029/2001GL014192 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2001GL014192 hal-03106876 https://hal.science/hal-03106876 https://hal.science/hal-03106876/document https://hal.science/hal-03106876/file/2001GL014192.pdf doi:10.1029/2001GL014192 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03106876 Geophysical Research Letters, 2002, 29 (7), ⟨10.1029/2001GL014192⟩ 1040 Geochemistry: Isotopic composition/chemistry 1827 Hydrology: Glaciology (1863) 4540 Oceanography: Physical: Ice mechanics and air/sea/ice exchange processes 9310 Information Related to Geographic Region: Antarctica [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2002 ftinsu https://doi.org/10.1029/2001GL014192 2024-04-05T00:38:39Z International audience Our paper documents the build‐up of a highly deformed basal ice layer in the basal part of the Vostok ice core. This is done mainly on the basis of an isotopic composition investigation of the ice. Complex deformation in the lower 228 m of the ice sheet has resulted in folding and intermixing of ice at a submetric scale and, for the upper part of this basal sequence, in interbedding of ice layers from distinct origins at a larger scale. This complex deformation occurred at a temperature largely below the pressure‐melting point. The basal ice layer has built upwards and size‐selective incorporation of bed material into the ice has taken place. The documentation of this complex basal deformation has implications for the maximum age of ice that will be useful in paleoclimate studies and for ice sheet dynamics. Article in Journal/Newspaper Antarc* Antarctica ice core Ice Sheet Sea ice Institut national des sciences de l'Univers: HAL-INSU Geophysical Research Letters 29 7 |