$^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core
An ice core drilled at Dome C, Antarctica, is the oldest ice core so far retrieved 1. On the basis of ice flow modelling and a comparison between the deuterium signal in the ice with climate records from marine sediment cores, the ice at a depth of 3,190 m in the Dome C core is believed to have been...
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Online Access: | https://hal.in2p3.fr/in2p3-00138066 https://doi.org/10.1038/nature05266 |
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ftunivnantes:oai:HAL:in2p3-00138066v1 2023-05-15T13:48:40+02:00 $^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core Raisbeck, G.M. Yiou, F. Cattani, O. Jouzel, Jean Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM) Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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)-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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)-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) 2006 https://hal.in2p3.fr/in2p3-00138066 https://doi.org/10.1038/nature05266 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/nature05266 in2p3-00138066 https://hal.in2p3.fr/in2p3-00138066 doi:10.1038/nature05266 ISSN: 0028-0836 EISSN: 1476-4687 Nature https://hal.in2p3.fr/in2p3-00138066 Nature, 2006, 444, pp.82-84. ⟨10.1038/nature05266⟩ [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2006 ftunivnantes https://doi.org/10.1038/nature05266 2023-03-08T07:01:25Z An ice core drilled at Dome C, Antarctica, is the oldest ice core so far retrieved 1. On the basis of ice flow modelling and a comparison between the deuterium signal in the ice with climate records from marine sediment cores, the ice at a depth of 3,190 m in the Dome C core is believed to have been deposited around 800,000 years ago 2, offering a rare opportunity to study climatic and environmental conditions over this time period. However, an independent determination of this age is important because the deuterium profile below a depth of 3,190 m depth does not show the expected correlation with the marine record 2. Here we present evidence for enhanced 10Be deposition in the ice at 3,160-3,170 m, which we interpret as a result of the low dipole field strength during the Matuyama-Brunhes geomagnetic reversal, which occurred about 780,000 years ago. If correct, this provides a crucial tie point between ice cores, marine cores and a radiometric timescale. Article in Journal/Newspaper Antarc* Antarctica EPICA ice core Université de Nantes: HAL-UNIV-NANTES Nature 444 7115 82 84 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Raisbeck, G.M. Yiou, F. Cattani, O. Jouzel, Jean $^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core |
topic_facet |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
An ice core drilled at Dome C, Antarctica, is the oldest ice core so far retrieved 1. On the basis of ice flow modelling and a comparison between the deuterium signal in the ice with climate records from marine sediment cores, the ice at a depth of 3,190 m in the Dome C core is believed to have been deposited around 800,000 years ago 2, offering a rare opportunity to study climatic and environmental conditions over this time period. However, an independent determination of this age is important because the deuterium profile below a depth of 3,190 m depth does not show the expected correlation with the marine record 2. Here we present evidence for enhanced 10Be deposition in the ice at 3,160-3,170 m, which we interpret as a result of the low dipole field strength during the Matuyama-Brunhes geomagnetic reversal, which occurred about 780,000 years ago. If correct, this provides a crucial tie point between ice cores, marine cores and a radiometric timescale. |
author2 |
Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM) Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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)-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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)-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) |
format |
Article in Journal/Newspaper |
author |
Raisbeck, G.M. Yiou, F. Cattani, O. Jouzel, Jean |
author_facet |
Raisbeck, G.M. Yiou, F. Cattani, O. Jouzel, Jean |
author_sort |
Raisbeck, G.M. |
title |
$^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core |
title_short |
$^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core |
title_full |
$^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core |
title_fullStr |
$^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core |
title_full_unstemmed |
$^{10}$Be evidence for the Matuyama-Brunhes geomagnetic reversal in the EPICA Dome C ice core |
title_sort |
$^{10}$be evidence for the matuyama-brunhes geomagnetic reversal in the epica dome c ice core |
publisher |
HAL CCSD |
publishDate |
2006 |
url |
https://hal.in2p3.fr/in2p3-00138066 https://doi.org/10.1038/nature05266 |
genre |
Antarc* Antarctica EPICA ice core |
genre_facet |
Antarc* Antarctica EPICA ice core |
op_source |
ISSN: 0028-0836 EISSN: 1476-4687 Nature https://hal.in2p3.fr/in2p3-00138066 Nature, 2006, 444, pp.82-84. ⟨10.1038/nature05266⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/nature05266 in2p3-00138066 https://hal.in2p3.fr/in2p3-00138066 doi:10.1038/nature05266 |
op_doi |
https://doi.org/10.1038/nature05266 |
container_title |
Nature |
container_volume |
444 |
container_issue |
7115 |
container_start_page |
82 |
op_container_end_page |
84 |
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1766249562144505856 |