Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau.
Lacustrine deposits at the margin of the southeastern Tibetan Plateau (SETP) are sensitive indicators for the evolution of the southwest Asian monsoon (SWAM) during the Quaternary. Thus, they can provide insight into the Quaternary climatic history and their relationship with global climatic changes...
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ftdoajarticles:oai:doaj.org/article:ef51a9b983cf4682b3542006f2856b5a 2023-05-15T17:34:07+02:00 Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau. Wenxiang Zhang Qingzhong Ming Zhengtao Shi Jie Niu Huai Su 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0168928 https://doaj.org/article/ef51a9b983cf4682b3542006f2856b5a EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5199098?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0168928 https://doaj.org/article/ef51a9b983cf4682b3542006f2856b5a PLoS ONE, Vol 11, Iss 12, p e0168928 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0168928 2022-12-31T14:52:12Z Lacustrine deposits at the margin of the southeastern Tibetan Plateau (SETP) are sensitive indicators for the evolution of the southwest Asian monsoon (SWAM) during the Quaternary. Thus, they can provide insight into the Quaternary climatic history and their relationship with global climatic changes. The results of the geochemical analysis of the Xiaozhongdian Basin section at the SETP suggest that SiO2 had the highest content of the major elements followed by Al2O3. The order of the abundance of the major elements was generally as follows: SiO2>Al2O3>Fe2O3>CaO>MgO>K2O>TiO2>Na2O>MnO2. The geochemical proxies, such as chemical index of alteration (CIA), the index of compositional variability (ICV) and (CaO+K2O+Na2O)/Al2O3, indicate the weak chemical weathering and the aridification of the margin of the SETP during the Heinrich events. In addition, the aridification of the SETP during the Heinrich events may be closely related to the cold signals transmitted from the high latitudes of the North Atlantic to the TP, and the effect caused the cooling effect to be very strong on the TP as a result of the upper-level westerly jet stream and then reduced the suction action associated with the SWAM, thus accelerating the drying rate of Xiaozhongdian Basin, which was amplifying the degree of drought in Heinrich events. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles PLOS ONE 11 12 e0168928 |
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Medicine R Science Q Wenxiang Zhang Qingzhong Ming Zhengtao Shi Jie Niu Huai Su Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau. |
topic_facet |
Medicine R Science Q |
description |
Lacustrine deposits at the margin of the southeastern Tibetan Plateau (SETP) are sensitive indicators for the evolution of the southwest Asian monsoon (SWAM) during the Quaternary. Thus, they can provide insight into the Quaternary climatic history and their relationship with global climatic changes. The results of the geochemical analysis of the Xiaozhongdian Basin section at the SETP suggest that SiO2 had the highest content of the major elements followed by Al2O3. The order of the abundance of the major elements was generally as follows: SiO2>Al2O3>Fe2O3>CaO>MgO>K2O>TiO2>Na2O>MnO2. The geochemical proxies, such as chemical index of alteration (CIA), the index of compositional variability (ICV) and (CaO+K2O+Na2O)/Al2O3, indicate the weak chemical weathering and the aridification of the margin of the SETP during the Heinrich events. In addition, the aridification of the SETP during the Heinrich events may be closely related to the cold signals transmitted from the high latitudes of the North Atlantic to the TP, and the effect caused the cooling effect to be very strong on the TP as a result of the upper-level westerly jet stream and then reduced the suction action associated with the SWAM, thus accelerating the drying rate of Xiaozhongdian Basin, which was amplifying the degree of drought in Heinrich events. |
format |
Article in Journal/Newspaper |
author |
Wenxiang Zhang Qingzhong Ming Zhengtao Shi Jie Niu Huai Su |
author_facet |
Wenxiang Zhang Qingzhong Ming Zhengtao Shi Jie Niu Huai Su |
author_sort |
Wenxiang Zhang |
title |
Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau. |
title_short |
Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau. |
title_full |
Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau. |
title_fullStr |
Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau. |
title_full_unstemmed |
Climate Change and Drought Events in the Geochemical Records of the Lacustrine Deposits in the Southeastern Tibetan Plateau. |
title_sort |
climate change and drought events in the geochemical records of the lacustrine deposits in the southeastern tibetan plateau. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0168928 https://doaj.org/article/ef51a9b983cf4682b3542006f2856b5a |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
PLoS ONE, Vol 11, Iss 12, p e0168928 (2016) |
op_relation |
http://europepmc.org/articles/PMC5199098?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0168928 https://doaj.org/article/ef51a9b983cf4682b3542006f2856b5a |
op_doi |
https://doi.org/10.1371/journal.pone.0168928 |
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PLOS ONE |
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11 |
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12 |
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e0168928 |
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