HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS

doi:10.1017/RDC.2018.75

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	HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS
	Chen, Qingmin 1; Zhou, Weijian 2; Wang, Zhe 1; Xian, Feng 2; Burr, George S.2
通讯作者	Zhou, Weijian(weijian@loess.llqg.ac.cn)
	2019-02-01
发表期刊	RADIOCARBON
ISSN	0033-8222
卷号	61 期号:1 页码:51-65
摘要	The Inner Mongolian Plateau lies along the northern limit reached by the East Asian summer monsoon. This geographic setting makes it especially sensitive to environmental change and an excellent site for understanding Quaternary East Asian monsoon variability. In this study we present new results of hydrogen isotopic compositions of fatty acids extracted from sediments, which were used to construct Holocene paleoprecipitation (or moisture) changes in Northern China. The hydrogen isotopic composition (D/H ratio) of n-acids in the sedimentary sequence of the Duoerji peat. Inner Mongolia, was determined with gas chromatography and mass spectrometry. Changes in the precipitation from middle Inner Mongolia are recorded by the D/H ratio of n-C-20, n-C-22, n-C-24, n-C-26, n-C-28 acids (delta D). From 10-9 ka, the relatively high delta D values indicate reduced precipitation in the Early Holocene. Subsequently, increased precipitation is reflected by reduced delta D values from 9-5.5 ka. After 5.5 ka, gradually increasing delta D values record an overall decrease in precipitation. The precipitation trends established for the Duoerji sequence are consistent with other major paleoclimate proxies in the East Asian monsoon region, especially with a distinct Holocene optimum of increased monsoonal activity from 9-5.5 ka. The delta D resulting paleo-precipitation record clearly shows that the Holocene climate in Northern China is basically controlled by the insolation changes.
关键词	Duoerji East Asian monsoon hydrogen isotopes n-fatty acids precipitation records
DOI	10.1017/RDC.2018.75
关键词[WOS]	GRAIN-SIZE DISTRIBUTION ; ASIAN MONSOON ; N-ALKANES ; LEAF WAXES ; LACUSTRINE SEDIMENTS ; HIGH-RESOLUTION ; CLIMATIC-CHANGE ; NORTHERN IDAHO ; LAKE-SEDIMENTS ; D/H RATIOS
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Shaanxi Public Welfare Special Project of geological prospecting
WOS研究方向	Geochemistry & Geophysics
项目资助者	National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Shaanxi Public Welfare Special Project of geological prospecting
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000458372300004
出版者	UNIV ARIZONA DEPT GEOSCIENCES
引用统计	被引频次：1[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/361006/14342
专题	加速器质谱中心
通讯作者	Zhou, Weijian
作者单位	1.Shaanxi Inst Geol Survey, Shaanxi Ctr Geol Survey, Xian 710068, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qingmin,Zhou, Weijian,Wang, Zhe,et al. HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS[J]. RADIOCARBON,2019,61(1):51-65.
APA	Chen, Qingmin,Zhou, Weijian,Wang, Zhe,Xian, Feng,&Burr, George S..(2019).HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS.RADIOCARBON,61(1),51-65.
MLA	Chen, Qingmin,et al."HOLOCENE PRECIPITATION RECORDS FROM INNER MONGOLIA DERIVED FROM HYDROGEN ISOTOPE COMPOSITIONS OF SEDIMENT FATTY ACIDS".RADIOCARBON 61.1(2019):51-65.