中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地球环境研究所
  3. 中国科学院地球环境研究所
  4. 古环境研究室
Millennial-scale summer monsoon oscillations over the last 260 ka revealed by high-resolution elemental results of the Mangshan loess-palaeosol sequence from the southeastern Chinese Loess Plateau

文献类型：期刊论文

作者Wang, Yang1,2; Guo, Fei1,2; Ma, Long3; Yan, Yan4; Liu, Xingxing1; Sun, Youbin1,5
刊名QUATERNARY INTERNATIONAL
出版日期2020-06-30
卷号552页码:164-174
关键词Chinese loess Elemental ratios Millennial-scale East Asian summer monsoon
ISSN号1040-6182
DOI10.1016/j.quaint.2020.05.039
通讯作者Wang, Yang(wangyang@ieecas.cn) ; Sun, Youbin(sunyb@ieecas.cn)
英文摘要Loess-based proxies have been widely used to infer glacial-interglacial to millennial-scale changes of the East Asian monsoon. However, the characteristic of millennial-scale variability is still unclear during glacial-interglacial cycles in loess-palaeosol sequence. Here, we present high-resolution (5-cm) elemental results of a 96.7-m thick Mangshan loess-palaeosol sequence on the southeastern Chinese Loess Plateau to emphasize millennial monsoon changes. We explore time series of loess proxies (magnetic susceptibility, CaCO3 content, Ca/K, Fe/K, and Rb/Sr ratios) and speleothem delta O-18 records and decompose these proxies into intrinsic components using the ensemble empirical mode decomposition method. Synthesized signals of lowand high-frequency components can track the monsoon variability at glacial-interglcial and millennial timescales, respectively. The proportions of millennial components of the loess proxies vary from 9.4%-13.4%, less than that in Chinese speleothem delta O-18 record (-24.4%). Among five loess proxies, Fe/K ratio is the most sensitive indicator of millennial-scale summer monsoon oscillations, exhibiting abrupt changes similar to that of the Chinese speleothem delta O-18 record. The amplitude of abrupt monsoon changes recorded in Mangshan is larger during interglacials than glacials, which is in line with Gulang records, implying the lower sensitivity of loess proxies to weak weathering during glacilals and an interglacial amplification of abrupt summer monsoon changes.
WOS关键词EAST-ASIAN MONSOON ; EMPIRICAL MODE DECOMPOSITION ; NORTH-ATLANTIC ; YELLOW-RIVER ; GRAIN-SIZE ; CLIMATE INSTABILITY ; LATE PLEISTOCENE ; OXYGEN ISOTOPES ; INDIAN MONSOON ; HULU CAVE
资助项目National Natural Science Foundation of China[41472163] ; National Natural Science Foundation of China[41525008]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000573017600009
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China
源URL[http://ir.ieecas.cn/handle/361006/15354]  
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Wang, Yang; Sun, Youbin
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Peoples R China
5.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yang,Guo, Fei,Ma, Long,et al. Millennial-scale summer monsoon oscillations over the last 260 ka revealed by high-resolution elemental results of the Mangshan loess-palaeosol sequence from the southeastern Chinese Loess Plateau[J]. QUATERNARY INTERNATIONAL,2020,552:164-174.
APA Wang, Yang,Guo, Fei,Ma, Long,Yan, Yan,Liu, Xingxing,&Sun, Youbin.(2020).Millennial-scale summer monsoon oscillations over the last 260 ka revealed by high-resolution elemental results of the Mangshan loess-palaeosol sequence from the southeastern Chinese Loess Plateau.QUATERNARY INTERNATIONAL,552,164-174.
MLA Wang, Yang,et al."Millennial-scale summer monsoon oscillations over the last 260 ka revealed by high-resolution elemental results of the Mangshan loess-palaeosol sequence from the southeastern Chinese Loess Plateau".QUATERNARY INTERNATIONAL 552(2020):164-174.

入库方式： OAI收割

来源：地球环境研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。