Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record
International audience High‐resolution clay mineral assemblage combined with Nd and Sr isotopic compositions of Core MD12‐3434 located in the northern South China Sea was investigated to reveal terrigenous sediment response to the East Asian monsoon evolution during the last glaciation. Clay mineral...
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Online Access: | https://hal.science/hal-02092723 https://doi.org/10.1029/2017PA003235 |
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ftunivnantes:oai:HAL:hal-02092723v1 2023-05-15T17:35:10+02:00 Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record Zhao, Shaohua Liu, Zhifei Colin, Christophe Zhao, Yulong Wang, Xingxing Jian, Zhimin State Key Laboratory of Marine Geology Shanghai Tongji University Géosciences Paris Sud (GEOPS) Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) Qingdao Agricultural University 2018 https://hal.science/hal-02092723 https://doi.org/10.1029/2017PA003235 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2017PA003235 hal-02092723 https://hal.science/hal-02092723 doi:10.1029/2017PA003235 ISSN: 0883-8305 Paleoceanography https://hal.science/hal-02092723 Paleoceanography, 2018, 33 (7), pp.745-765. ⟨10.1029/2017PA003235⟩ [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.1029/2017PA003235 2023-01-25T00:37:11Z International audience High‐resolution clay mineral assemblage combined with Nd and Sr isotopic compositions of Core MD12‐3434 located in the northern South China Sea was investigated to reveal terrigenous sediment response to the East Asian monsoon evolution during the last glaciation. Clay mineralogical variations indicate clear millennial‐scale oscillations that are mainly due to rapid changes in the proportion of smectite to illite and chlorite. Smectite is derived predominantly from rapid chemical weathering of volcanic rocks in Luzon under strong summer monsoon, while illite and chlorite are mainly sourced from Taiwan through reinforced physical erosion. Thus, the smectite/(illite + chlorite) ratio is adopted to reconstruct the East Asian summer monsoon evolution during the last glaciation. Rapid increases in the smectite/(illite + chlorite) ratio imply strengthened summer monsoon occurred during Dansgaard‐Oeschger and Bølling‐Allerød interstadials. In contrast, rapid decreases in the ratio indicate relatively weakened summer monsoon happened during Heinrich and Younger Dryas stadials. These millennial‐scale climatic signals documented by clay mineralogical compositions of deep‐sea sediments in the South China Sea can be better preserved in calm deeper‐water sedimentary environments. Our study highlights the prompt responses of the East Asian monsoon system to millennial‐scale climatic changes occurred in high‐latitude Northern Hemisphere through contemporaneous chemical weathering of volcanic rocks and/or sediment supply variations under strong physical erosion in the low‐latitude South China Sea, implying an atmospheric teleconnection from the North Atlantic to the Asian monsoon region. Article in Journal/Newspaper North Atlantic Université de Nantes: HAL-UNIV-NANTES Paleoceanography and Paleoclimatology 33 7 745 765 |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Zhao, Shaohua Liu, Zhifei Colin, Christophe Zhao, Yulong Wang, Xingxing Jian, Zhimin Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record |
topic_facet |
[SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience High‐resolution clay mineral assemblage combined with Nd and Sr isotopic compositions of Core MD12‐3434 located in the northern South China Sea was investigated to reveal terrigenous sediment response to the East Asian monsoon evolution during the last glaciation. Clay mineralogical variations indicate clear millennial‐scale oscillations that are mainly due to rapid changes in the proportion of smectite to illite and chlorite. Smectite is derived predominantly from rapid chemical weathering of volcanic rocks in Luzon under strong summer monsoon, while illite and chlorite are mainly sourced from Taiwan through reinforced physical erosion. Thus, the smectite/(illite + chlorite) ratio is adopted to reconstruct the East Asian summer monsoon evolution during the last glaciation. Rapid increases in the smectite/(illite + chlorite) ratio imply strengthened summer monsoon occurred during Dansgaard‐Oeschger and Bølling‐Allerød interstadials. In contrast, rapid decreases in the ratio indicate relatively weakened summer monsoon happened during Heinrich and Younger Dryas stadials. These millennial‐scale climatic signals documented by clay mineralogical compositions of deep‐sea sediments in the South China Sea can be better preserved in calm deeper‐water sedimentary environments. Our study highlights the prompt responses of the East Asian monsoon system to millennial‐scale climatic changes occurred in high‐latitude Northern Hemisphere through contemporaneous chemical weathering of volcanic rocks and/or sediment supply variations under strong physical erosion in the low‐latitude South China Sea, implying an atmospheric teleconnection from the North Atlantic to the Asian monsoon region. |
author2 |
State Key Laboratory of Marine Geology Shanghai Tongji University Géosciences Paris Sud (GEOPS) Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) Qingdao Agricultural University |
format |
Article in Journal/Newspaper |
author |
Zhao, Shaohua Liu, Zhifei Colin, Christophe Zhao, Yulong Wang, Xingxing Jian, Zhimin |
author_facet |
Zhao, Shaohua Liu, Zhifei Colin, Christophe Zhao, Yulong Wang, Xingxing Jian, Zhimin |
author_sort |
Zhao, Shaohua |
title |
Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record |
title_short |
Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record |
title_full |
Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record |
title_fullStr |
Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record |
title_full_unstemmed |
Responses of the East Asian Summer Monsoon in the Low-Latitude South China Sea to High-Latitude Millennial-Scale Climatic Changes During the Last Glaciation: Evidence From a High-Resolution Clay Mineralogical Record |
title_sort |
responses of the east asian summer monsoon in the low-latitude south china sea to high-latitude millennial-scale climatic changes during the last glaciation: evidence from a high-resolution clay mineralogical record |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02092723 https://doi.org/10.1029/2017PA003235 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0883-8305 Paleoceanography https://hal.science/hal-02092723 Paleoceanography, 2018, 33 (7), pp.745-765. ⟨10.1029/2017PA003235⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2017PA003235 hal-02092723 https://hal.science/hal-02092723 doi:10.1029/2017PA003235 |
op_doi |
https://doi.org/10.1029/2017PA003235 |
container_title |
Paleoceanography and Paleoclimatology |
container_volume |
33 |
container_issue |
7 |
container_start_page |
745 |
op_container_end_page |
765 |
_version_ |
1766134237504733184 |