Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok
International audience We analyzed helium and neon in 24 samples from between 3,607 and 3,767 m (i.e., down to 2 m above the lake-ice interface) of the accreted ice frozen to the ceiling of Lake Vostok. Within uncertainties, the neon budget of the lake is balanced, the neon supplied to the lake by t...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2018
|
Subjects: | |
Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03706507 https://hal-insu.archives-ouvertes.fr/insu-03706507/document https://hal-insu.archives-ouvertes.fr/insu-03706507/file/Geophysical%20Research%20Letters%20-%202018%20-%20Jean%25u2010Baptiste%20-%20Helium%20and%20Neon%20in%20the%20Accreted%20Ice%20of%20the%20Subglacial%20Antarctic%20Lake.pdf https://doi.org/10.1029/2018GL078068 |
id |
ftunivnantes:oai:HAL:insu-03706507v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivnantes:oai:HAL:insu-03706507v1 2023-05-15T13:39:40+02:00 Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok Jean-Baptiste, P. Fourré, E. Petit, J. R. Lipenkov, V. Bulat, S. Chetverikov, Y. Raynaud, D. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) 2018 https://hal-insu.archives-ouvertes.fr/insu-03706507 https://hal-insu.archives-ouvertes.fr/insu-03706507/document https://hal-insu.archives-ouvertes.fr/insu-03706507/file/Geophysical%20Research%20Letters%20-%202018%20-%20Jean%25u2010Baptiste%20-%20Helium%20and%20Neon%20in%20the%20Accreted%20Ice%20of%20the%20Subglacial%20Antarctic%20Lake.pdf https://doi.org/10.1029/2018GL078068 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2018GL078068 insu-03706507 https://hal-insu.archives-ouvertes.fr/insu-03706507 https://hal-insu.archives-ouvertes.fr/insu-03706507/document https://hal-insu.archives-ouvertes.fr/insu-03706507/file/Geophysical%20Research%20Letters%20-%202018%20-%20Jean%25u2010Baptiste%20-%20Helium%20and%20Neon%20in%20the%20Accreted%20Ice%20of%20the%20Subglacial%20Antarctic%20Lake.pdf BIBCODE: 2018GeoRL.45.4927J doi:10.1029/2018GL078068 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03706507 Geophysical Research Letters, 2018, 45, pp.4927-4932. ⟨10.1029/2018GL078068⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.1029/2018GL078068 2023-03-01T01:36:31Z International audience We analyzed helium and neon in 24 samples from between 3,607 and 3,767 m (i.e., down to 2 m above the lake-ice interface) of the accreted ice frozen to the ceiling of Lake Vostok. Within uncertainties, the neon budget of the lake is balanced, the neon supplied to the lake by the melting of glacier ice being compensated by the neon exported by lake ice. The helium concentration in the lake is about 12 times more than in the glacier ice, with a measured 3 He/ 4 He ratio of 0.12 ± 0.01 R a . This shows that Lake Vostok's waters are enriched by a terrigenic helium source. The 3 He/ 4 He isotope ratio of this helium source was determined. Its radiogenic value (0.057 × R a ) is typical of an old continental province, ruling out any magmatic activity associated with the tectonic structure of the lake. It corresponds to a low geothermal heat flow estimated at 51 mW/m 2 . Article in Journal/Newspaper Antarc* Antarctic Université de Nantes: HAL-UNIV-NANTES Antarctic Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) Geophysical Research Letters 45 10 4927 4932 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Jean-Baptiste, P. Fourré, E. Petit, J. R. Lipenkov, V. Bulat, S. Chetverikov, Y. Raynaud, D. Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience We analyzed helium and neon in 24 samples from between 3,607 and 3,767 m (i.e., down to 2 m above the lake-ice interface) of the accreted ice frozen to the ceiling of Lake Vostok. Within uncertainties, the neon budget of the lake is balanced, the neon supplied to the lake by the melting of glacier ice being compensated by the neon exported by lake ice. The helium concentration in the lake is about 12 times more than in the glacier ice, with a measured 3 He/ 4 He ratio of 0.12 ± 0.01 R a . This shows that Lake Vostok's waters are enriched by a terrigenic helium source. The 3 He/ 4 He isotope ratio of this helium source was determined. Its radiogenic value (0.057 × R a ) is typical of an old continental province, ruling out any magmatic activity associated with the tectonic structure of the lake. It corresponds to a low geothermal heat flow estimated at 51 mW/m 2 . |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) |
format |
Article in Journal/Newspaper |
author |
Jean-Baptiste, P. Fourré, E. Petit, J. R. Lipenkov, V. Bulat, S. Chetverikov, Y. Raynaud, D. |
author_facet |
Jean-Baptiste, P. Fourré, E. Petit, J. R. Lipenkov, V. Bulat, S. Chetverikov, Y. Raynaud, D. |
author_sort |
Jean-Baptiste, P. |
title |
Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok |
title_short |
Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok |
title_full |
Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok |
title_fullStr |
Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok |
title_full_unstemmed |
Helium and Neon in the Accreted Ice of the Subglacial Antarctic Lake Vostok |
title_sort |
helium and neon in the accreted ice of the subglacial antarctic lake vostok |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03706507 https://hal-insu.archives-ouvertes.fr/insu-03706507/document https://hal-insu.archives-ouvertes.fr/insu-03706507/file/Geophysical%20Research%20Letters%20-%202018%20-%20Jean%25u2010Baptiste%20-%20Helium%20and%20Neon%20in%20the%20Accreted%20Ice%20of%20the%20Subglacial%20Antarctic%20Lake.pdf https://doi.org/10.1029/2018GL078068 |
long_lat |
ENVELOPE(106.000,106.000,-77.500,-77.500) |
geographic |
Antarctic Lake Vostok |
geographic_facet |
Antarctic Lake Vostok |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal-insu.archives-ouvertes.fr/insu-03706507 Geophysical Research Letters, 2018, 45, pp.4927-4932. ⟨10.1029/2018GL078068⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018GL078068 insu-03706507 https://hal-insu.archives-ouvertes.fr/insu-03706507 https://hal-insu.archives-ouvertes.fr/insu-03706507/document https://hal-insu.archives-ouvertes.fr/insu-03706507/file/Geophysical%20Research%20Letters%20-%202018%20-%20Jean%25u2010Baptiste%20-%20Helium%20and%20Neon%20in%20the%20Accreted%20Ice%20of%20the%20Subglacial%20Antarctic%20Lake.pdf BIBCODE: 2018GeoRL.45.4927J doi:10.1029/2018GL078068 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2018GL078068 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
10 |
container_start_page |
4927 |
op_container_end_page |
4932 |
_version_ |
1766122087609532416 |