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Orbitally and galactic cosmic forced abrupt climate events during the last glacial period

文献类型：期刊论文

作者Jiang, H. C.1,2; Yin, Q. Z.3; Berger, A.3; Wei, L. H.4; Wu, Z. P.3,5,6; Wei, X. T.1; Shi, W.1
刊名QUATERNARY SCIENCE REVIEWS
出版日期2023-02-01
卷号301页码:9
ISSN号0277-3791
关键词Abrupt climate event Last glacial period East asia Heinrich event Laschamps excursion Loess deposits
DOI10.1016/j.quascirev.2022.107921
英文摘要Various abrupt climate events have been reported during the last glacial period, but their regional expressions and causes remain complex and not fully understood largely due to lack of high-resolution paleoclimate records. In this study, a high-resolution loess sequence is presented from North China which is significantly influenced by the East Asian Summer Monsoon, and its multiple proxies reveal two strong, abrupt cooling-drying events occurring at 48 ka and similar to 42 ka. The 48 ka event corresponds to the fifth Heinrich (H5) event that was characterized by catastrophic iceberg discharges into the subpolar North Atlantic Ocean. Our loess and model results suggest that the 48 ka event could result from the unique and extreme orbital configuration at 48 ka, characterized by the smallest latitudinal summer insolation gradient over the last glacial period. This orbital configuration led to a cooling-drying in the low and mid-latitudes but a warming in high latitudes. The similar to 42 ka event corresponds to a catastrophic environmental crisis discovered on the Eurasian and Australian continents. It also corresponds to a major reversal of the Earth's magnetic poles, i.e., the Laschamps Excursion. The cosmic ray increase due to this Excursion could affect the pedogenesis and dust deposition of the loess sequence via cloud increase, regional cooling, aerosol increase and local wind strengthening. This study is a clear demonstration that both extreme orbital conditions and the change of the Earth's magnetic field could cause abrupt climate and environmental changes. (c) 2022 Elsevier Ltd. All rights reserved.
WOS关键词CHINESE LOESS ; NORTH-ATLANTIC ; GEOMAGNETIC EXCURSIONS ; HEINRICH EVENTS ; MONSOON RECORD ; ASIAN MONSOON ; INSOLATION ; OCEAN ; VARIABILITY ; CIRCULATION
资助项目National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration[41572346] ; National Natural Science Foundation of China[IGCEA 1906] ; Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China
WOS研究方向Physical Geography ; Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000921402300001
资助机构National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology, China Earthquake Administration ; Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China ; National Nonprofit Fundamental Research Grant of China ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology, China Earthquake Administration ; Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China ; National Nonprofit Fundamental Research Grant of China ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology, China Earthquake Administration ; Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China ; National Nonprofit Fundamental Research Grant of China ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology, China Earthquake Administration ; Institute of Geology, China Earthquake Administration ; National Nonprofit Fundamental Research Grant of China ; National Nonprofit Fundamental Research Grant of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/106835]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Jiang, H. C.; Yin, Q. Z.
作者单位1.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China
2.China Earthquake Adm, Inst Geol, Shanxi Taiyuan Continental Rift Dynam Natl Observa, Beijing 100029, Peoples R China
3.Catholic Univ Louvain, Earth & Life Inst, Georges Lemaitre Ctr Earth & Climate Res, Louvain La Neuve, Belgium
4.China Earthquake Adm, Geophys Explorat Ctr, Zhengzhou 450002, Henan, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
6.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, H. C.,Yin, Q. Z.,Berger, A.,et al. Orbitally and galactic cosmic forced abrupt climate events during the last glacial period[J]. QUATERNARY SCIENCE REVIEWS,2023,301:9.
APA Jiang, H. C..,Yin, Q. Z..,Berger, A..,Wei, L. H..,Wu, Z. P..,...&Shi, W..(2023).Orbitally and galactic cosmic forced abrupt climate events during the last glacial period.QUATERNARY SCIENCE REVIEWS,301,9.
MLA Jiang, H. C.,et al."Orbitally and galactic cosmic forced abrupt climate events during the last glacial period".QUATERNARY SCIENCE REVIEWS 301(2023):9.

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来源：地质与地球物理研究所

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