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Millennial- to centennial-scale anti-phase relationship between the Westerlies and the East Asian summer monsoon and its cultural response along the Silk Roads after a great earthquake in southern Altay similar to 3500 cal a BP

文献类型：期刊论文

作者Fan, Jiawei6,7,8; Xu, Hongyan8; Jiang, Hanchao6,7,8; Wei, Xiaotong8; Shi, Wei8; Guo, Qiaoqiao8; Zhang, Siqi8; Bai, Xianzhou5; Liu, Xingqi4; Xiao, Jule1,2,3
刊名JOURNAL OF QUATERNARY SCIENCE
出版日期2022-08-16
页码15
关键词East Asian summer monsoon North Atlantic Oscillation Silk Roads Westerlies West-Pacific Subtropical High
ISSN号0267-8179
DOI10.1002/jqs.3468
英文摘要It is strongly debated whether the Westerlies and the East Asian summer monsoon (EASM) are in-phase, anti-phase or out-of-phase, and how hydroclimatic changes in the above two climate systems affected trans-Eurasian cultural exchanges during the late Holocene. In this study, we establish a 3500-a-long paleoclimatic sequence based on high-resolution analyses of sedimentological and geochemical data of a well-dated sediment core from Yileimu Lake in southern Altay. High percentages of the >63-mu m fraction and high values of Zr/Rb and Rb/Sr ratios indicate strong transport of weakly weathered, coarse sediments into the depocenter of the lake caused by enhanced surface runoff and catchment erosion associated with a wet climate, and vice versa. High values of Ca and total inorganic carbon (TIC) contents imply increased precipitation of endogenic carbonates in the lake water under intense evaporation associated with a dry climate, and vice versa. This new record indicates two wet intervals at 3500-2300 and 600-100 cal a BP, interrupted by a severe and prolonged dry interval from 2300 to 1000 cal a BP, and a mild dry interval with occasionally wet conditions from 1000 to 600 cal a BP. These results are broadly consistent with other paleoclimatic records in Westerlies-dominated Asia and are generally anti-phase with those in the EASM region. We suggest that a strengthening/weakening and southward/northward migration of the Westerlies during a negative/ positive phase of the North Atlantic Oscillation (NAO) transported more/less water vapor into arid Asia. Meanwhile, a decreasing/increasing El Nino-Southern Oscillation (ENSO) superimposed on a southward/northward shift of the Intertropical Convergence Zone (ITCZ) triggered a weakening/strengthening and southward/northward movement of the West-Pacific subtropical high (WPSH), resulting in decreasing/increasing EASM intensity. In addition, the wet climate from 3500 to 2300 cal a BP may have contributed to the development of nomadic herding in the eastern Eurasian Steppe and Altay region, and to the opening of the proto-Silk Roads. Potentially, intense seismic activities in the Altay Mountains similar to 3500 cal a BP may have also promoted the opening of the proto-Silk Roads by forcing the herdsmen to move to the inter-mountainous basins. The strong EASM intensity from 2300 to 1000 cal a BP in eastern China may have contributed to the creation of the ancient Silk Roads by the Han Dynasty. (C) 2022 John Wiley & Sons, Ltd.
WOS关键词NORTH-ATLANTIC OSCILLATION ; HOLOCENE CLIMATE CHANGES ; QINGHAI-TIBETAN PLATEAU ; ARID CENTRAL-ASIA ; DAIHAI LAKE ; FUYUN FAULT ; ICE-AGE ; LACUSTRINE RECORD ; INNER-MONGOLIA ; GENGGAHAI LAKE
资助项目National Nonprofit Fundamental Research Grant of China, Institute of Geology, China Earthquake Administration[IGCEA2009] ; National Key Research and Development Program of China[2017YFA0603400] ; National Natural Science Foundation of China[41931181]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000840772600001
出版者WILEY
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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation 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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation 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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation 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 Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/108414]  
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Fan, Jiawei
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
2.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, CAS Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
4.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing, Peoples R China
5.Sichuan Geol Survey, Chengdu, Peoples R China
6.China Earthquake Adm, Urumqi Inst Cent Asia Earthquake, Urumqi, Peoples R China
7.Xinjiang Pamir Intracontinental Subduct Natl Obse, Beijing, Peoples R China
8.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Fan, Jiawei,Xu, Hongyan,Jiang, Hanchao,et al. Millennial- to centennial-scale anti-phase relationship between the Westerlies and the East Asian summer monsoon and its cultural response along the Silk Roads after a great earthquake in southern Altay similar to 3500 cal a BP[J]. JOURNAL OF QUATERNARY SCIENCE,2022:15.
APA Fan, Jiawei.,Xu, Hongyan.,Jiang, Hanchao.,Wei, Xiaotong.,Shi, Wei.,...&Xiao, Jule.(2022).Millennial- to centennial-scale anti-phase relationship between the Westerlies and the East Asian summer monsoon and its cultural response along the Silk Roads after a great earthquake in southern Altay similar to 3500 cal a BP.JOURNAL OF QUATERNARY SCIENCE,15.
MLA Fan, Jiawei,et al."Millennial- to centennial-scale anti-phase relationship between the Westerlies and the East Asian summer monsoon and its cultural response along the Silk Roads after a great earthquake in southern Altay similar to 3500 cal a BP".JOURNAL OF QUATERNARY SCIENCE (2022):15.

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来源：地质与地球物理研究所

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