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DOI	10.1007/s11442-008-0373-1
	Environmental change inferred from Rb and Sr of lacustrine sediments in Huangqihai Lake, Inner Mongolia
	Chen Lei; Shen Hongyuan; Jia Yulian; Wu Jinglu; Li Xusheng; Wei Ling; Wang Pengling
通讯作者	Shen, HY (通讯作者)
发表日期	2008
ISSN	1009-637X
EISSN	1861-9568
起始页码	373
结束页码	384
卷号	18 期号:3
英文摘要	Based on the geochemical elements Rb and Sr in sediments with three different grain size fractions from profile H3 on the northern lacustrine bottomland 13 m above the Huangqihai Lake surface in 1986, the paper investigates the record of palaeolake stand state, sedimentary environmental evolution, and winter monsoon change. First, these samples are separated into three different grain size fractions, i.e., total sediments, 77-20 pm and <20 mu m. Second, the chemical elements-Rb and Sr-of the grain size separation were tested and analyzed systematically in this paper. Then the elements compositions of these samples are measured using VP-320 mode fluorescence spectrum instrument, respectively. The magnetic susceptibility of these samples is measured using Kappabridge KLY-3 mode instrument made in Czech AGICO Company. The results showed the elements and the ratios varied regularly with the grain size. But the ratio of Rb/Sr in the sediments <20 pm correlates positively with the magnetic susceptibility of these samples. Therefore, the ratio of Rb/Sr in the fraction <20 pm from the lake sediments reflected the strengthening of the weathering in the deposition sites. It is a good indicator of the summer monsoon-induced weathering and pedogenesis fluctuations and can be used to reconstruct the conditions of the paleoclimate and paleoenvironment.
关键词	HOLOCENE CLIMATE
英文关键词	Inner Mongolia; Huangqihai Lake; Holocene; different grain size fractions; lake sediment; Rb/Sr ratio; climatic change
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000257786500011
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257607
推荐引用方式 GB/T 7714	Chen Lei,Shen Hongyuan,Jia Yulian,et al. Environmental change inferred from Rb and Sr of lacustrine sediments in Huangqihai Lake, Inner Mongolia[J]. 中国科学院青藏高原研究所,2008,18(3).
APA	Chen Lei.,Shen Hongyuan.,Jia Yulian.,Wu Jinglu.,Li Xusheng.,...&Wang Pengling.(2008).Environmental change inferred from Rb and Sr of lacustrine sediments in Huangqihai Lake, Inner Mongolia.JOURNAL OF GEOGRAPHICAL SCIENCES,18(3).
MLA	Chen Lei,et al."Environmental change inferred from Rb and Sr of lacustrine sediments in Huangqihai Lake, Inner Mongolia".JOURNAL OF GEOGRAPHICAL SCIENCES 18.3(2008).