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

doi:10.1029/2020PA004072

IEECAS OpenIR > 古环境研究室

	Speleothem-Based Hydroclimate Reconstructions During the Penultimate Deglaciation in Northern China
	Xue, Gang 1,2; Cai, Yanjun 1,3,4; Lu, Yanbin 1; Ma, Le 1; Cheng, Xing1,2 ; Liu, Chengcheng 1; Yan, Hong 1; Sun, Youbin 1; Li, Dong 5; Wei, Yingying 1,2; Huang, Shouyi 1,2; He, Mei 1,2; Cheng, Hai 3,6; Edwards, R. Lawrence 6
通讯作者	Cai, Yanjun(yanjun_cai@xjtu.edu.cn)
	2021-04-01
发表期刊	PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
ISSN	2572-4517
卷号	36 期号:4 页码:11
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.
关键词	coastline shifts hydroclimatic change speleothem trace elements XRF
DOI	10.1029/2020PA004072
关键词[WOS]	STABLE-ISOTOPE VARIATIONS ; X-RAY-FLUORESCENCE ; TRACE-ELEMENT ; ASIAN MONSOON ; CLIMATE RECONSTRUCTION ; STALAGMITE LAMINAE ; LAST DEGLACIATION ; CAVE ; SEA ; SR/CA
收录类别	SCI ; SCI
语种	英语
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
项目资助者	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
WOS类目	Geosciences, Multidisciplinary ; Oceanography ; Paleontology
WOS记录号	WOS:000644566400010
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/16445
专题	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.