An ice core perspective on the age of the Matuyama-Brunhes boundary
Two intervals of enhanced 10Be flux thought to be associated with periods of low dipole intensity and identified as the Matuyama-Brunhes transition and a precursor event have been observed in the bottom section of the EPICA Dome C ice core. The peaks span 764-776 ka and 788-798 ka on the new EDC3 ch...
Published in: | Earth and Planetary Science Letters |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2008
|
Subjects: | |
Online Access: | https://hal.in2p3.fr/in2p3-00825234 https://doi.org/10.1016/J.EPSL.2008.07.008 |
id |
ftinsu:oai:HAL:in2p3-00825234v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
spellingShingle |
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] Dreyfus, G. B. Raisbeck, G. M. Parrenin, F. Jouzel, Jean Guyodo, Y. Nomade, S. Mazaud, A. An ice core perspective on the age of the Matuyama-Brunhes boundary |
topic_facet |
[PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
description |
Two intervals of enhanced 10Be flux thought to be associated with periods of low dipole intensity and identified as the Matuyama-Brunhes transition and a precursor event have been observed in the bottom section of the EPICA Dome C ice core. The peaks span 764-776 ka and 788-798 ka on the new EDC3 chronology with a stated absolute age uncertainty of 6 ka (2σ). This chronology uses orbital tuning of atmospheric oxygen-18 (δ18Oatm) to correct for anomalies in ice flow in the bottom 500 m of the core. An additional 28 δ18Oatm data points have been measured to improve resolution and verify the accuracy of the tuning and the stated timescale uncertainty. Both the dating of the increased 10Be, and that relative to climatic records, are compared to paleointensity records found in orbitally tuned marine sediments. The mid-point of the 10Be peak associated with the M-B is approximately 10 ka younger than the age determined radioisotopically from lavas with transitional orientations, taking into account recent revisions to the 40Ar/39Ar dating standard and improved precision. Climatic constraints on the EDC3 agescale make an error of this magnitude in the ice chronology implausible. This age difference, however, is consistent with recent modeling suggesting that directional changes are spatially asynchronous, and may precede the dipole intensity minimum in some locations. Although formally less precise than the published age from astrochronologically dated marine sediments, ice core ages are potentially more accurate because they are not subject to lock-in depth uncertainties. |
author2 |
Institut Pierre-Simon-Laplace (IPSL) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) Department of Geosciences Princeton Princeton University CSNSM AS 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)-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) Université Joseph Fourier - Grenoble 1 (UJF) 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)) Paléocéanographie (PALEOCEAN) Climat et Magnétisme (CLIMAG) |
format |
Article in Journal/Newspaper |
author |
Dreyfus, G. B. Raisbeck, G. M. Parrenin, F. Jouzel, Jean Guyodo, Y. Nomade, S. Mazaud, A. |
author_facet |
Dreyfus, G. B. Raisbeck, G. M. Parrenin, F. Jouzel, Jean Guyodo, Y. Nomade, S. Mazaud, A. |
author_sort |
Dreyfus, G. B. |
title |
An ice core perspective on the age of the Matuyama-Brunhes boundary |
title_short |
An ice core perspective on the age of the Matuyama-Brunhes boundary |
title_full |
An ice core perspective on the age of the Matuyama-Brunhes boundary |
title_fullStr |
An ice core perspective on the age of the Matuyama-Brunhes boundary |
title_full_unstemmed |
An ice core perspective on the age of the Matuyama-Brunhes boundary |
title_sort |
ice core perspective on the age of the matuyama-brunhes boundary |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.in2p3.fr/in2p3-00825234 https://doi.org/10.1016/J.EPSL.2008.07.008 |
genre |
EPICA ice core |
genre_facet |
EPICA ice core |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal.in2p3.fr/in2p3-00825234 Earth and Planetary Science Letters, 2008, 274, pp.151-156. ⟨10.1016/J.EPSL.2008.07.008⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.EPSL.2008.07.008 in2p3-00825234 https://hal.in2p3.fr/in2p3-00825234 BIBCODE: 2008E&PSL.274.151D doi:10.1016/J.EPSL.2008.07.008 |
op_doi |
https://doi.org/10.1016/J.EPSL.2008.07.008 |
container_title |
Earth and Planetary Science Letters |
container_volume |
274 |
container_issue |
1-2 |
container_start_page |
151 |
op_container_end_page |
156 |
_version_ |
1797582200678383616 |
spelling |
ftinsu:oai:HAL:in2p3-00825234v1 2024-04-28T08:17:56+00:00 An ice core perspective on the age of the Matuyama-Brunhes boundary Dreyfus, G. B. Raisbeck, G. M. Parrenin, F. Jouzel, Jean Guyodo, Y. Nomade, S. Mazaud, A. Institut Pierre-Simon-Laplace (IPSL) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS) Department of Geosciences Princeton Princeton University CSNSM AS 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)-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) Université Joseph Fourier - Grenoble 1 (UJF) 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)) Paléocéanographie (PALEOCEAN) Climat et Magnétisme (CLIMAG) 2008-09 https://hal.in2p3.fr/in2p3-00825234 https://doi.org/10.1016/J.EPSL.2008.07.008 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/J.EPSL.2008.07.008 in2p3-00825234 https://hal.in2p3.fr/in2p3-00825234 BIBCODE: 2008E&PSL.274.151D doi:10.1016/J.EPSL.2008.07.008 ISSN: 0012-821X Earth and Planetary Science Letters https://hal.in2p3.fr/in2p3-00825234 Earth and Planetary Science Letters, 2008, 274, pp.151-156. ⟨10.1016/J.EPSL.2008.07.008⟩ [PHYS.ASTR.EP]Physics [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] info:eu-repo/semantics/article Journal articles 2008 ftinsu https://doi.org/10.1016/J.EPSL.2008.07.008 2024-04-05T00:21:12Z Two intervals of enhanced 10Be flux thought to be associated with periods of low dipole intensity and identified as the Matuyama-Brunhes transition and a precursor event have been observed in the bottom section of the EPICA Dome C ice core. The peaks span 764-776 ka and 788-798 ka on the new EDC3 chronology with a stated absolute age uncertainty of 6 ka (2σ). This chronology uses orbital tuning of atmospheric oxygen-18 (δ18Oatm) to correct for anomalies in ice flow in the bottom 500 m of the core. An additional 28 δ18Oatm data points have been measured to improve resolution and verify the accuracy of the tuning and the stated timescale uncertainty. Both the dating of the increased 10Be, and that relative to climatic records, are compared to paleointensity records found in orbitally tuned marine sediments. The mid-point of the 10Be peak associated with the M-B is approximately 10 ka younger than the age determined radioisotopically from lavas with transitional orientations, taking into account recent revisions to the 40Ar/39Ar dating standard and improved precision. Climatic constraints on the EDC3 agescale make an error of this magnitude in the ice chronology implausible. This age difference, however, is consistent with recent modeling suggesting that directional changes are spatially asynchronous, and may precede the dipole intensity minimum in some locations. Although formally less precise than the published age from astrochronologically dated marine sediments, ice core ages are potentially more accurate because they are not subject to lock-in depth uncertainties. Article in Journal/Newspaper EPICA ice core Institut national des sciences de l'Univers: HAL-INSU Earth and Planetary Science Letters 274 1-2 151 156 |