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Glacial events during the last glacial termination in the Pagele valley, Qiongmu Gangri peak, southern Tibetan Plateau, and their links to oceanic and atmospheric circulation
Xu, Xiangke1,2; Yao, Tandong1,2; Xu, Baiqing1,2; Yi, Chaolu1,2; Sun, Yong1,3; Zeng, Xuezhen1,3; Dong, Guocheng4; Pan, Baolin5
Corresponding AuthorXu, Xiangke(xkxu@itpcas.ac.cn)
2020-05-01
Source PublicationQUATERNARY RESEARCH
ISSN0033-5894
Volume95Pages:129-141
AbstractDuring the last glacial termination, a warming trend was generally interrupted by rapid millennium-scale cold reversals, such as the Greenland (Isotope) Stadial 1 (GS-1) and GS-2a events. To understand how glaciers on the Tibetan Plateau (TP) responded to these rapid climate events, this study constrained the timing and extent of three glacial events during the late-glacial period. Specifically, using a cosmogenic Be-10 exposure dating method, we dated three prominent glacial moraines (PM1, PM2, PM3) back to 15,850 +/- 980, 14,140 +/- 880, and 12,430 +/- 790 yr in the Pagele valley, southern TP, corresponding to GS-2a, Greenland Interstadial 1 (GI-1), and GS-1, respectively. By simulating glacial extents forced by different climate scenarios, the study constrained the temperature decreases relative to present to be 2.6 degrees C-2.9 degrees C, similar to 1.6 degrees C, and 1.4 degrees C-1.5 degrees C during the GS-2a, GI-1, and GS-1 periods in the region, with precipitation values of 60%-80%, similar to 100%, and 80%-90% of present value, respectively. Considering information from oceanic and atmospheric circulation, the study suggested that on the TP, the glacial events during the last glacial termination were well connected with the millennium-scale climate events in the North Atlantic region through the westerlies, while the Indian summer monsoon played a positive role in sustaining the glaciers under the warming climate trend.
KeywordLast glacial termination Glacial event Cosmogenic Be-10 dating Millennium-scale climate events Pagele valley
DOI10.1017/qua.2020.7
WOS KeywordNUCLIDE PRODUCTION-RATES ; INDIAN-SUMMER MONSOON ; CLIMATE-CHANGE ; EXPOSURE AGES ; QUATERNARY GLACIATION ; BE-10 ; MAXIMUM ; PRECIPITATION ; MOUNTAINS ; RECORD
Indexed BySCI ; SCI
Language英语
Funding ProjectSecond Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0101] ; National Natural Science Foundation of China (NSFC)[41771019] ; Strategic Priority Research Program (A) of the Chinese Academy of Sciences[XDA2007010201]
WOS Research AreaPhysical Geography ; Geology
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program (A) of the Chinese Academy of Sciences
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000531662000009
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/13971
Collection加速器质谱中心
Corresponding AuthorXu, Xiangke
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
5.Capital Normal Univ, Coll Resources Environm & Tourism, Beijing 100048, Peoples R China
Recommended Citation
GB/T 7714
Xu, Xiangke,Yao, Tandong,Xu, Baiqing,et al. Glacial events during the last glacial termination in the Pagele valley, Qiongmu Gangri peak, southern Tibetan Plateau, and their links to oceanic and atmospheric circulation[J]. QUATERNARY RESEARCH,2020,95:129-141.
APA Xu, Xiangke.,Yao, Tandong.,Xu, Baiqing.,Yi, Chaolu.,Sun, Yong.,...&Pan, Baolin.(2020).Glacial events during the last glacial termination in the Pagele valley, Qiongmu Gangri peak, southern Tibetan Plateau, and their links to oceanic and atmospheric circulation.QUATERNARY RESEARCH,95,129-141.
MLA Xu, Xiangke,et al."Glacial events during the last glacial termination in the Pagele valley, Qiongmu Gangri peak, southern Tibetan Plateau, and their links to oceanic and atmospheric circulation".QUATERNARY RESEARCH 95(2020):129-141.
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