The Dome Fuji ice core DF2021 chronology (0-207 kyr BP)
International audience Precise ice-core chronologies are essential for identifying the timing and duration of polar climatic changes as well as their phasing with the changes in other parts of the globe. However, existing ice-core chronologies beyond the last 60 kyr show relatively large disagreemen...
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
2022
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Online Access: | https://insu.hal.science/insu-03824350 https://insu.hal.science/insu-03824350/document https://insu.hal.science/insu-03824350/file/1-s2.0-S0277379122003857-main.pdf https://doi.org/10.1016/j.quascirev.2022.107754 |
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ftceafr:oai:HAL:insu-03824350v1 |
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Open Polar |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
Dole effect Dome Fuji Ice cores Geochronology Antarctica δO 2 /N 2 age marker [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
Dole effect Dome Fuji Ice cores Geochronology Antarctica δO 2 /N 2 age marker [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Oyabu, Ikumi Kawamura, Kenji Buizert, Christo Parrenin, Frédéric Orsi, Anais Kitamura, Kyotaro Aoki, Shuji Nakazawa, Takakiyo The Dome Fuji ice core DF2021 chronology (0-207 kyr BP) |
topic_facet |
Dole effect Dome Fuji Ice cores Geochronology Antarctica δO 2 /N 2 age marker [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience Precise ice-core chronologies are essential for identifying the timing and duration of polar climatic changes as well as their phasing with the changes in other parts of the globe. However, existing ice-core chronologies beyond the last 60 kyr show relatively large disagreements with each other and with U-Th chronologies of speleothems. Here, we constructed new ice and gas age scales for the Dome Fuji (DF) core (DF2021) over the last 207 kyr by combining a Bayesian dating model and firn densification model, constrained by various types of chronological and glaciological information including new δO 2 /N 2 age markers, precise synchronization to other high-quality chronologies (volcanic, cosmogenic, and CH 4 signals), and high-resolution δ 15 N of N 2 (reflecting past firn thickness). The new chronology is tightly constrained by synchronization to other well-dated records for the last 60 kyr, whereas it is independent from other chronologies for the older period. For the last 60 kyr, the DF2021 chronology agrees with the layer-counted ice core chronologies (GICC05 and a part of WD2014) and U-Th chronologies of speleothems within ∼200 years. For the period 60-130 kyr BP, the timing of all Dansgaard-Oeschger warming events on DF2021 agree with those of corresponding events in the U-Th dated Chinese or European speleothems mostly within 1 kyr (well within 2σ uncertainty of DF2021). The excellent agreement suggests high accuracy of our chronology, and supports the assumption of negligible phasing between the past local summer solstice insolation and δO 2 /N 2 fractionation at bubble close-off (the basis for constructing the δO 2 /N 2 age markers). Between 130 and 207 kyr BP (penultimate glacial period), there is a lower degree of similarity between the variations in atmospheric CH 4 and speleothem calcite δ 18 O than in the last glacial period, making the age comparison challenging. The comparison of DF2021 with 9 U-Th dates at 7 abrupt events shows the mean difference of -0.2 ± 0.8 kyr, ... |
author2 |
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) 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) |
format |
Article in Journal/Newspaper |
author |
Oyabu, Ikumi Kawamura, Kenji Buizert, Christo Parrenin, Frédéric Orsi, Anais Kitamura, Kyotaro Aoki, Shuji Nakazawa, Takakiyo |
author_facet |
Oyabu, Ikumi Kawamura, Kenji Buizert, Christo Parrenin, Frédéric Orsi, Anais Kitamura, Kyotaro Aoki, Shuji Nakazawa, Takakiyo |
author_sort |
Oyabu, Ikumi |
title |
The Dome Fuji ice core DF2021 chronology (0-207 kyr BP) |
title_short |
The Dome Fuji ice core DF2021 chronology (0-207 kyr BP) |
title_full |
The Dome Fuji ice core DF2021 chronology (0-207 kyr BP) |
title_fullStr |
The Dome Fuji ice core DF2021 chronology (0-207 kyr BP) |
title_full_unstemmed |
The Dome Fuji ice core DF2021 chronology (0-207 kyr BP) |
title_sort |
dome fuji ice core df2021 chronology (0-207 kyr bp) |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://insu.hal.science/insu-03824350 https://insu.hal.science/insu-03824350/document https://insu.hal.science/insu-03824350/file/1-s2.0-S0277379122003857-main.pdf https://doi.org/10.1016/j.quascirev.2022.107754 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Dome Fuji |
geographic_facet |
Dome Fuji |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://insu.hal.science/insu-03824350 Quaternary Science Reviews, 2022, 294, ⟨10.1016/j.quascirev.2022.107754⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2022.107754 insu-03824350 https://insu.hal.science/insu-03824350 https://insu.hal.science/insu-03824350/document https://insu.hal.science/insu-03824350/file/1-s2.0-S0277379122003857-main.pdf BIBCODE: 2022QSRv.29407754O doi:10.1016/j.quascirev.2022.107754 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2022.107754 |
container_title |
Quaternary Science Reviews |
container_volume |
294 |
container_start_page |
107754 |
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1801377920291176448 |
spelling |
ftceafr:oai:HAL:insu-03824350v1 2024-06-09T07:39:12+00:00 The Dome Fuji ice core DF2021 chronology (0-207 kyr BP) Oyabu, Ikumi Kawamura, Kenji Buizert, Christo Parrenin, Frédéric Orsi, Anais Kitamura, Kyotaro Aoki, Shuji Nakazawa, Takakiyo 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) 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) 2022 https://insu.hal.science/insu-03824350 https://insu.hal.science/insu-03824350/document https://insu.hal.science/insu-03824350/file/1-s2.0-S0277379122003857-main.pdf https://doi.org/10.1016/j.quascirev.2022.107754 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2022.107754 insu-03824350 https://insu.hal.science/insu-03824350 https://insu.hal.science/insu-03824350/document https://insu.hal.science/insu-03824350/file/1-s2.0-S0277379122003857-main.pdf BIBCODE: 2022QSRv.29407754O doi:10.1016/j.quascirev.2022.107754 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://insu.hal.science/insu-03824350 Quaternary Science Reviews, 2022, 294, ⟨10.1016/j.quascirev.2022.107754⟩ Dole effect Dome Fuji Ice cores Geochronology Antarctica δO 2 /N 2 age marker [SDU]Sciences of the Universe [physics] [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2022 ftceafr https://doi.org/10.1016/j.quascirev.2022.107754 2024-05-16T13:44:06Z International audience Precise ice-core chronologies are essential for identifying the timing and duration of polar climatic changes as well as their phasing with the changes in other parts of the globe. However, existing ice-core chronologies beyond the last 60 kyr show relatively large disagreements with each other and with U-Th chronologies of speleothems. Here, we constructed new ice and gas age scales for the Dome Fuji (DF) core (DF2021) over the last 207 kyr by combining a Bayesian dating model and firn densification model, constrained by various types of chronological and glaciological information including new δO 2 /N 2 age markers, precise synchronization to other high-quality chronologies (volcanic, cosmogenic, and CH 4 signals), and high-resolution δ 15 N of N 2 (reflecting past firn thickness). The new chronology is tightly constrained by synchronization to other well-dated records for the last 60 kyr, whereas it is independent from other chronologies for the older period. For the last 60 kyr, the DF2021 chronology agrees with the layer-counted ice core chronologies (GICC05 and a part of WD2014) and U-Th chronologies of speleothems within ∼200 years. For the period 60-130 kyr BP, the timing of all Dansgaard-Oeschger warming events on DF2021 agree with those of corresponding events in the U-Th dated Chinese or European speleothems mostly within 1 kyr (well within 2σ uncertainty of DF2021). The excellent agreement suggests high accuracy of our chronology, and supports the assumption of negligible phasing between the past local summer solstice insolation and δO 2 /N 2 fractionation at bubble close-off (the basis for constructing the δO 2 /N 2 age markers). Between 130 and 207 kyr BP (penultimate glacial period), there is a lower degree of similarity between the variations in atmospheric CH 4 and speleothem calcite δ 18 O than in the last glacial period, making the age comparison challenging. The comparison of DF2021 with 9 U-Th dates at 7 abrupt events shows the mean difference of -0.2 ± 0.8 kyr, ... Article in Journal/Newspaper Antarc* Antarctica ice core HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) Quaternary Science Reviews 294 107754 |