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DOI	10.1016/j.quaint.2010.04.024
	Variations in trace element (including rare earth element) concentrations with grain sizes in loess and their implications for tracing the provenance of eolian deposits
	Feng, Jin-Liang; Hu, Zhao-Guo; Ju, Jian-Ting; Zhu, Li-Ping
通讯作者	Feng, JL (通讯作者)
发表日期	2011
ISSN	1040-6182
EISSN	1873-4553
起始页码	116
结束页码	126
卷号	236
英文摘要	The concentrations of rare earth elements (REEs) and other 28 trace elements were determined in seven grain-size fractions from four loess samples collected from the Tibetan Plateau, the Sichuan Basin and the Chinese Loess Plateau. The results indicate that concentrations of REEs, except for heavy rare earth elements (HREEs), are almost grain-size independent. However, REEs show clear fractionation with grain size. Middle rare earth element (MREE) depletion increases with decreasing grain size, whereas HREE enrichment increases with decreasing grain size. Excluding REEs and Y, most of the other trace element concentrations tend to increase with decreasing grain sizes. The trace element geochemistry indicates that the potential sources of eolian deposits from the Sichuan Basin, the Chinese Loess Plateau and the Tibetan Plateau differ from one another. This comparative study confirmed that the eolian materials from the Asian continent are the source of the terrigenous component of the central North Pacific sediments, and the loess from the Chinese Loess Plateau could represent the average composition of eolian dust from the Asian continent. In contrast, the eolian deposits in the Sichuan Basin and in the Tibetan Plateau are mainly of local origin, with short-distance eolian transport. (C) 2010 Elsevier Ltd and INQUA. All rights reserved.
关键词	NORTH PACIFIC ATMOSPHERIC CIRCULATION ISOTOPIC CONSTRAINTS GEOCHEMICAL EVIDENCE SEDIMENTARY-ROCKS LATE PLEISTOCENE DUST PROVENANCE ICE-CORE DEEP-SEA DOME C
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000290511100014
来源期刊	QUATERNARY INTERNATIONAL
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/257854
推荐引用方式 GB/T 7714	Feng, Jin-Liang,Hu, Zhao-Guo,Ju, Jian-Ting,et al. Variations in trace element (including rare earth element) concentrations with grain sizes in loess and their implications for tracing the provenance of eolian deposits[J]. 中国科学院青藏高原研究所,2011,236.
APA	Feng, Jin-Liang,Hu, Zhao-Guo,Ju, Jian-Ting,&Zhu, Li-Ping.(2011).Variations in trace element (including rare earth element) concentrations with grain sizes in loess and their implications for tracing the provenance of eolian deposits.QUATERNARY INTERNATIONAL,236.
MLA	Feng, Jin-Liang,et al."Variations in trace element (including rare earth element) concentrations with grain sizes in loess and their implications for tracing the provenance of eolian deposits".QUATERNARY INTERNATIONAL 236(2011).