| Speleothem-Based Hydroclimate Reconstructions During the Penultimate Deglaciation in Northern China | |
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; Huang, Shouyi1,2; He, Mei1,2; Cheng, Hai3,6; Edwards, R. Lawrence6
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| Corresponding Author | Cai, Yanjun(yanjun_cai@xjtu.edu.cn) |
| 2021-04-01 | |
| Source Publication | PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
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| ISSN | 2572-4517 |
| Volume | 36Issue:4Pages:11 |
| Abstract | 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. |
| Keyword | coastline shifts hydroclimatic change speleothem trace elements XRF |
| DOI | 10.1029/2020PA004072 |
| WOS Keyword | STABLE-ISOTOPE VARIATIONS ; X-RAY-FLUORESCENCE ; TRACE-ELEMENT ; ASIAN MONSOON ; CLIMATE RECONSTRUCTION ; STALAGMITE LAMINAE ; LAST DEGLACIATION ; CAVE ; SEA ; SR/CA |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Geology ; Oceanography ; Paleontology |
| Funding Organization | 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 Subject | Geosciences, Multidisciplinary ; Oceanography ; Paleontology |
| WOS ID | WOS:000644566400010 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ieecas.cn/handle/361006/16445 |
| Collection | 古环境研究室 第四纪科学与全球变化卓越创新中心 |
| Corresponding Author | Cai, Yanjun |
| Affiliation | 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 |
| Recommended Citation 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. |
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