Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet
International audience The East Asian summer monsoon (EASM) variability on orbital time scale has been extensively investigated in Quaternary loess and speleothems. However, EASM variability during pre-Quaternary time remains poorly understood. Here we report a continuous upper Miocene cyclostratigr...
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ftcollegfrance:oai:HAL:hal-03469361v1 2024-06-23T07:47:41+00:00 Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet Wang, Zhixiang Huang, Chunju Licht, Alexis Zhang, Rui Kemp, David, B China University of Geosciences Wuhan (CUG) Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2019 https://hal.science/hal-03469361 https://hal.science/hal-03469361/document https://hal.science/hal-03469361/file/Wang%20et%20al%202019%20JGR.pdf https://doi.org/10.1029/2019gl082283 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2019gl082283 hal-03469361 https://hal.science/hal-03469361 https://hal.science/hal-03469361/document https://hal.science/hal-03469361/file/Wang%20et%20al%202019%20JGR.pdf doi:10.1029/2019gl082283 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03469361 Geophysical Research Letters, 2019, 46, pp.6926 - 6935. ⟨10.1029/2019gl082283⟩ [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy info:eu-repo/semantics/article Journal articles 2019 ftcollegfrance https://doi.org/10.1029/2019gl082283 2024-06-13T23:37:29Z International audience The East Asian summer monsoon (EASM) variability on orbital time scale has been extensively investigated in Quaternary loess and speleothems. However, EASM variability during pre-Quaternary time remains poorly understood. Here we report a continuous upper Miocene cyclostratigraphic record from lake deposits of the Tianshui basin, Northeast Tibet, to reconstruct past variations of the regional hydrological cycle. Our results, combined with previously published cyclostratigraphic records from Northeast Tibet, show that regional lake expansion cycles have been consistently dominated by~100-kyr eccentricity forcing over most of the middle to late Miocene. These~100 kyr cycles corroborate a significant forcing of the East Asian hydrological cycle by Antarctic ice sheet variations at that time. It is, however, unclear if this forcing affected EASM intensity or westerly derived moisture supply to the far east. Regardless of the nature of the main source of precipitation in Northeast Tibet during the Miocene, these results emphasize the existence of a strong teleconnection between Antarctic ice sheet modulations and the continental climate of Asia. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Collège de France: HAL Antarctic Geophysical Research Letters 46 12 6926 6935 |
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Collège de France: HAL |
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ftcollegfrance |
language |
English |
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[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
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[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy Wang, Zhixiang Huang, Chunju Licht, Alexis Zhang, Rui Kemp, David, B Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet |
topic_facet |
[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
description |
International audience The East Asian summer monsoon (EASM) variability on orbital time scale has been extensively investigated in Quaternary loess and speleothems. However, EASM variability during pre-Quaternary time remains poorly understood. Here we report a continuous upper Miocene cyclostratigraphic record from lake deposits of the Tianshui basin, Northeast Tibet, to reconstruct past variations of the regional hydrological cycle. Our results, combined with previously published cyclostratigraphic records from Northeast Tibet, show that regional lake expansion cycles have been consistently dominated by~100-kyr eccentricity forcing over most of the middle to late Miocene. These~100 kyr cycles corroborate a significant forcing of the East Asian hydrological cycle by Antarctic ice sheet variations at that time. It is, however, unclear if this forcing affected EASM intensity or westerly derived moisture supply to the far east. Regardless of the nature of the main source of precipitation in Northeast Tibet during the Miocene, these results emphasize the existence of a strong teleconnection between Antarctic ice sheet modulations and the continental climate of Asia. |
author2 |
China University of Geosciences Wuhan (CUG) Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Wang, Zhixiang Huang, Chunju Licht, Alexis Zhang, Rui Kemp, David, B |
author_facet |
Wang, Zhixiang Huang, Chunju Licht, Alexis Zhang, Rui Kemp, David, B |
author_sort |
Wang, Zhixiang |
title |
Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet |
title_short |
Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet |
title_full |
Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet |
title_fullStr |
Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet |
title_full_unstemmed |
Middle to Late Miocene Eccentricity Forcing on Lake Expansion in NE Tibet |
title_sort |
middle to late miocene eccentricity forcing on lake expansion in ne tibet |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-03469361 https://hal.science/hal-03469361/document https://hal.science/hal-03469361/file/Wang%20et%20al%202019%20JGR.pdf https://doi.org/10.1029/2019gl082283 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-03469361 Geophysical Research Letters, 2019, 46, pp.6926 - 6935. ⟨10.1029/2019gl082283⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2019gl082283 hal-03469361 https://hal.science/hal-03469361 https://hal.science/hal-03469361/document https://hal.science/hal-03469361/file/Wang%20et%20al%202019%20JGR.pdf doi:10.1029/2019gl082283 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2019gl082283 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
12 |
container_start_page |
6926 |
op_container_end_page |
6935 |
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1802651824085270528 |