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Speleothem-Based Hydroclimate Reconstructions During the Penultimate Deglaciation in Northern China

文献类型：期刊论文

作者Xue, Gang1,2; Cai, Yanjun1,3,4; Lu, Yanbin1; Ma, Le1; Cheng, Xing1,2; Liu, Chengcheng1; Yan, Hong1; Sun, Youbin1; Li, Dong5; Wei, Yingying1,2
刊名PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
出版日期2021-04-01
卷号36期号:4页码:11
ISSN号2572-4517
关键词coastline shifts hydroclimatic change speleothem trace elements XRF
DOI10.1029/2020PA004072
通讯作者Cai, Yanjun(yanjun_cai@xjtu.edu.cn)
英文摘要Trace elements in a speleothem have been considered to be effective proxies to characterize hydroclimatic changes. In this study, we present speleothem trace element records of the penultimate glacial-interglacial transition from 138 to 125.8 ka BP from the Shangxiaofeng cave in northeastern China. We used two analytical methods, namely, inductively coupled plasma optical emission spectrometry (ICP-OES) and the Avaatech high-resolution X-ray fluorescence (XRF) core scanner. Both methods showed good consistency for Sr/Ca but not for Mg/Ca because of the high Mg detection limit of XRF. By comparing the trace element ratios (Sr/Ca and Mg/Ca) with delta C-13 and by analyzing the slope of the regression line of ln(Sr/Ca) versus ln(Mg/Ca), we found that trace element variations were dominated by hydroclimate-related prior calcite precipitation (PCP) and water-rock interaction (WRI). A gradually decreasing trend of Sr/Ca, Mg/Ca, and delta C-13 records during the glacial-interglacial transition indicated that the hydroclimate moved toward a moist condition with an intensified East Asian summer monsoon (EASM) and transgression of the coastline. The transgression shortened the distance between the cave site and the coastline, possibly contributing to persistent rainfall enhancement at the study site.
WOS关键词STABLE-ISOTOPE VARIATIONS ; X-RAY-FLUORESCENCE ; TRACE-ELEMENT ; ASIAN MONSOON ; CLIMATE RECONSTRUCTION ; STALAGMITE LAMINAE ; LAST DEGLACIATION ; CAVE ; SEA ; SR/CA
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB 40010200] ; National Key Research and Development Program of China[2017YFA0603401] ; National Natural Science Foundation of China[41888101] ; Young Talent Support Plan of Xi'an Jiaotong University ; Opening Fund of State Key Laboratory of Loess and Quaternary Geology[SKLLQG1723]
WOS研究方向Geology ; Oceanography ; Paleontology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000644566400010
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; Young Talent Support Plan of Xi'an Jiaotong University ; Opening Fund of State Key Laboratory of Loess and Quaternary Geology
源URL[http://ir.ieecas.cn/handle/361006/16444]  
专题地球环境研究所_古环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Cai, Yanjun
作者单位1.Chinese Acad Sci Tan, Ctr Excellence Quaternary Sci & Global Change, State Key Lab Loess & Quaternary Geol, Inst Earth Ervironm, Xian, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Xi An Jiao Tong Univ, Inst Global Enivornm Change, Xian, Peoples R China
4.Qingdao Natl Lab Marine Sci & Technol, Open Studio OCCEC, Qingdao, Peoples R China
5.Lib Changan Univ, Xian, Peoples R China
6.Univ Minnesota, Dept Earth Sci, Minneapolis, MN USA
推荐引用方式
GB/T 7714		 Xue, Gang,Cai, Yanjun,Lu, Yanbin,et al. Speleothem-Based Hydroclimate Reconstructions During the Penultimate Deglaciation in Northern China[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2021,36(4):11.
APA Xue, Gang.,Cai, Yanjun.,Lu, Yanbin.,Ma, Le.,Cheng, Xing.,...&Edwards, R. Lawrence.(2021).Speleothem-Based Hydroclimate Reconstructions During the Penultimate Deglaciation in Northern China.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,36(4),11.
MLA Xue, Gang,et al."Speleothem-Based Hydroclimate Reconstructions During the Penultimate Deglaciation in Northern China".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 36.4(2021):11.

入库方式： OAI收割

来源：地球环境研究所

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