Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition
The first major build-up of Antarctic glaciation occurred in two consecutive stages across the Eocene–Oligocene transition (EOT): the EOT-1 cooling event at ~34.1–33.9 Ma and the Oi-1 glaciation event at ~33.8–33.6 Ma. Detailed orbital-scale terrestrial environmental responses to these events remain...
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ftpubmed:oai:pubmedcentral.nih.gov:7567875 2023-05-15T13:46:52+02:00 Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition Ao, Hong Dupont-Nivet, Guillaume Rohling, Eelco J. Zhang, Peng Ladant, Jean-Baptiste Roberts, Andrew P. Licht, Alexis Liu, Qingsong Liu, Zhonghui Dekkers, Mark J. Coxall, Helen K. Jin, Zhangdong Huang, Chunju Xiao, Guoqiao Poulsen, Christopher J. Barbolini, Natasha Meijer, Niels Sun, Qiang Qiang, Xiaoke Yao, Jiao An, Zhisheng 2020-10-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567875/ http://www.ncbi.nlm.nih.gov/pubmed/33067447 https://doi.org/10.1038/s41467-020-18824-8 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567875/ http://www.ncbi.nlm.nih.gov/pubmed/33067447 http://dx.doi.org/10.1038/s41467-020-18824-8 © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Nat Commun Article Text 2020 ftpubmed https://doi.org/10.1038/s41467-020-18824-8 2020-10-25T00:46:18Z The first major build-up of Antarctic glaciation occurred in two consecutive stages across the Eocene–Oligocene transition (EOT): the EOT-1 cooling event at ~34.1–33.9 Ma and the Oi-1 glaciation event at ~33.8–33.6 Ma. Detailed orbital-scale terrestrial environmental responses to these events remain poorly known. Here we present magnetic and geochemical climate records from the northeastern Tibetan Plateau margin that are dated precisely from ~35.5 to 31 Ma by combined magneto- and astro-chronology. These records suggest a hydroclimate transition at ~33.7 Ma from eccentricity dominated cycles to oscillations paced by a combination of eccentricity, obliquity, and precession, and confirm that major Asian aridification and cooling occurred at Oi-1. We conclude that this terrestrial orbital response transition coincided with a similar transition in the marine benthic δ(18)O record for global ice volume and deep-sea temperature variations. The dramatic reorganization of the Asian climate system coincident with Oi-1 was, thus, a response to coeval atmospheric CO(2) decline and continental-scale Antarctic glaciation. Text Antarc* Antarctic PubMed Central (PMC) Antarctic Nature Communications 11 1 |
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Article Ao, Hong Dupont-Nivet, Guillaume Rohling, Eelco J. Zhang, Peng Ladant, Jean-Baptiste Roberts, Andrew P. Licht, Alexis Liu, Qingsong Liu, Zhonghui Dekkers, Mark J. Coxall, Helen K. Jin, Zhangdong Huang, Chunju Xiao, Guoqiao Poulsen, Christopher J. Barbolini, Natasha Meijer, Niels Sun, Qiang Qiang, Xiaoke Yao, Jiao An, Zhisheng Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition |
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description |
The first major build-up of Antarctic glaciation occurred in two consecutive stages across the Eocene–Oligocene transition (EOT): the EOT-1 cooling event at ~34.1–33.9 Ma and the Oi-1 glaciation event at ~33.8–33.6 Ma. Detailed orbital-scale terrestrial environmental responses to these events remain poorly known. Here we present magnetic and geochemical climate records from the northeastern Tibetan Plateau margin that are dated precisely from ~35.5 to 31 Ma by combined magneto- and astro-chronology. These records suggest a hydroclimate transition at ~33.7 Ma from eccentricity dominated cycles to oscillations paced by a combination of eccentricity, obliquity, and precession, and confirm that major Asian aridification and cooling occurred at Oi-1. We conclude that this terrestrial orbital response transition coincided with a similar transition in the marine benthic δ(18)O record for global ice volume and deep-sea temperature variations. The dramatic reorganization of the Asian climate system coincident with Oi-1 was, thus, a response to coeval atmospheric CO(2) decline and continental-scale Antarctic glaciation. |
format |
Text |
author |
Ao, Hong Dupont-Nivet, Guillaume Rohling, Eelco J. Zhang, Peng Ladant, Jean-Baptiste Roberts, Andrew P. Licht, Alexis Liu, Qingsong Liu, Zhonghui Dekkers, Mark J. Coxall, Helen K. Jin, Zhangdong Huang, Chunju Xiao, Guoqiao Poulsen, Christopher J. Barbolini, Natasha Meijer, Niels Sun, Qiang Qiang, Xiaoke Yao, Jiao An, Zhisheng |
author_facet |
Ao, Hong Dupont-Nivet, Guillaume Rohling, Eelco J. Zhang, Peng Ladant, Jean-Baptiste Roberts, Andrew P. Licht, Alexis Liu, Qingsong Liu, Zhonghui Dekkers, Mark J. Coxall, Helen K. Jin, Zhangdong Huang, Chunju Xiao, Guoqiao Poulsen, Christopher J. Barbolini, Natasha Meijer, Niels Sun, Qiang Qiang, Xiaoke Yao, Jiao An, Zhisheng |
author_sort |
Ao, Hong |
title |
Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition |
title_short |
Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition |
title_full |
Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition |
title_fullStr |
Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition |
title_full_unstemmed |
Orbital climate variability on the northeastern Tibetan Plateau across the Eocene–Oligocene transition |
title_sort |
orbital climate variability on the northeastern tibetan plateau across the eocene–oligocene transition |
publisher |
Nature Publishing Group UK |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567875/ http://www.ncbi.nlm.nih.gov/pubmed/33067447 https://doi.org/10.1038/s41467-020-18824-8 |
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Antarctic |
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Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567875/ http://www.ncbi.nlm.nih.gov/pubmed/33067447 http://dx.doi.org/10.1038/s41467-020-18824-8 |
op_rights |
© The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41467-020-18824-8 |
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Nature Communications |
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11 |
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1 |
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1766245498343129088 |