Radiocarbon dating of the Pleistocene/Holocene climatic transition across the Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Xu, Bing1,2; Gu, Zhaoyang1,2; Pei, Yunpeng3; Lv, Yanwu4 |
| 刊名 | QUATERNARY GEOCHRONOLOGY
 |
| 出版日期 | 2017-08-01 |
| 卷号 | 41页码:112-118 |
| 关键词 | Radiocarbon delta O-18(s) Land snails Pleistocene/Holocene transition Chinese Loess Plateau |
| ISSN号 | 1871-1014 |
| DOI | 10.1016/j.quageo.2017.06.003 |
| 文献子类 | Article |
| 英文摘要 | The magnetic susceptibility (MS) of Chinese loess deposits is extensively used to reconstruct climate changes from centennial to earth orbital time scales. The approach assumes that the MS is sensitive to the variations of the Asian Summer Monsoon (ASM), and thus that changes in MS are synchronous across the Chinese Loess Plateau. However, this inference has not been fully confirmed due to the limitations of both chronological control of Chinese loess sequences and the climatic proxies of the ASM. Here, we present the results of radiocarbon dating of the shifts in the oxygen isotopic composition of fossil land snail shells (delta O-18(s)) and in MS during the Pleistocene/Holocene transition at various sites in Chinese Loess Plateau. The results show that the age of shift in MS at Pleistocene/Holocene transition at Mangshan, Heshui, and Huanxian sections is 10.43 ka, 8.55 ka, and 7.13 ka BP, respectively. Thus, the shift is time transgressive with age decreasing from southeast to northwest across the plateau. However, the delta O-18(s) record, which is directly related to the precipitation delivered by the ASM, is not significantly time transgressive, indicating that the ASM strengthened almost simultaneously across the plateau. We suggest that the time-transgressive nature of the shifts in MS may result from the low amplitude of the ASM strengthening during the Pleistocene/Holocene transition. Overall, our results demonstrate a regional difference in the insensitivity of MS to low amplitude climatic changes, and they challenge the previously-held assumption that the ages of climatic boundary based on MS stratigraphy are time equivalent in Chinese loess. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | LAND-SNAIL SHELLS ; EAST-ASIAN MONSOON ; OXYGEN-ISOTOPE COMPOSITION ; MAGNETIC-SUSCEPTIBILITY ; AGE ANOMALIES ; HOLOCENE OPTIMUM ; MILLENNIAL-SCALE ; NORTH-ATLANTIC ; RECORD ; CARBON |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000407535300010 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation(41172324 ; 41472152 ; 41272201 ; 41672181) ; National Natural Science Foundation(41172324 ; 41472152 ; 41272201 ; 41672181) ; National Natural Science Foundation(41172324 ; 41472152 ; 41272201 ; 41672181) ; National Natural Science Foundation(41172324 ; 41472152 ; 41272201 ; 41672181) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/61830]  |
| 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 | Xu, Bing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.China Univ Geosci, Beijing, Peoples R China 4.China Earthquake Adm, Inst Crustal Dynam, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Bing,Gu, Zhaoyang,Pei, Yunpeng,et al. Radiocarbon dating of the Pleistocene/Holocene climatic transition across the Chinese Loess Plateau[J]. QUATERNARY GEOCHRONOLOGY,2017,41:112-118. |
| APA | Xu, Bing,Gu, Zhaoyang,Pei, Yunpeng,&Lv, Yanwu.(2017).Radiocarbon dating of the Pleistocene/Holocene climatic transition across the Chinese Loess Plateau.QUATERNARY GEOCHRONOLOGY,41,112-118. |
| MLA | Xu, Bing,et al."Radiocarbon dating of the Pleistocene/Holocene climatic transition across the Chinese Loess Plateau".QUATERNARY GEOCHRONOLOGY 41(2017):112-118. |
入库方式： OAI收割
来源：地质与地球物理研究所
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