Rare earth elements in fine-grained sediments of major rivers from the high-standing island of Taiwan

doi:10.1016/j.jseaes.2013.03.001

	Rare earth elements in fine-grained sediments of major rivers from the high-standing island of Taiwan
	Li, Chuan-Shun 1; Shi, Xue-Fa 1; Kao, Shuh-Ji 2; Liu, Yan-Guang 1; Lyu, Hua-Hua 1; Zou, Jian-Jun 1; Liu, Sheng-Fa 1; Qiao, Shu-Qing 1
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2013-06-05
卷号	69 页码:39-47
关键词	Rare earth elements Taiwanese rivers Fluvial sediments Sediment provenance
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2013.03.001
英文摘要	Thirty-eight sediment samples from 15 primary rivers on Taiwan were retrieved to characterize the rare earth element (REE) signature of fluvial fine sediment sources. Compared to the three large rivers on the Chinese mainland, distinct differences were observed in the REE contents, upper continental crust normalized patterns and fractionation factors of the sediment samples. The average REE concentrations of the Taiwanese river sediments are higher than those of the Changjiang and Huanghe, but lower than the Zhujiang. Light rare earth elements (LREEs) are enriched relative to heavy rare earth elements (HREEs) with ratios from 7.48 to 13.03. We found that the variations in (La/Lu)(UCC)-(Gd/Lu)(UCC) and (La/Yb)(UCC)-(Gd/Yb)(UCC) are good proxies for tracing the source sediments of Taiwanese and Chinese rivers due to their distinguishable values. Our analyses indicate that the REE compositions of Taiwanese river sediments were primarily determined by the properties of the bedrock, and the intensity of chemical weathering in the drainage areas. The relatively high relief and heavy rainfall also have caused the REEs in the fluvial sediments from Taiwan to be transported to the estuaries down rivers from the mountains, and in turn delivered nearly coincidently to the adjacent seas by currents and waves. Our studies suggest that the REE patterns of the river sediments from Taiwan are distinguishable from those from the other sources of sediments transported into the adjacent seas, and therefore are useful proxies for tracing the provenances and dispersal patterns of sediments, as well as paleoenvironmental changes in the marginal seas. (c) 2013 Elsevier Ltd. All rights reserved.
资助项目	Special Basic Research Fund of the Central Public Research Institutes First Institute of Oceanography, State Oceanic Administration[GY02-2011G28]
WOS关键词	SMALL MOUNTAINOUS RIVERS ; EAST CHINA SEA ; CONTINENTAL-SHELF ; SOUTHWESTERN TAIWAN ; REE GEOCHEMISTRY ; FLUVIAL SEDIMENT ; AMAZON RIVER ; YELLOW SEA ; OCEAN ; PROVENANCE
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000319635400005
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26696]
专题	自然资源部第一海洋研究所
通讯作者	Li, Chuan-Shun
作者单位	1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Acad Sinica, Res Ctr Environm Changes, Taipei 11529, Taiwan
推荐引用方式 GB/T 7714	Li, Chuan-Shun,Shi, Xue-Fa,Kao, Shuh-Ji,et al. Rare earth elements in fine-grained sediments of major rivers from the high-standing island of Taiwan[J]. JOURNAL OF ASIAN EARTH SCIENCES,2013,69:39-47.
APA	Li, Chuan-Shun.,Shi, Xue-Fa.,Kao, Shuh-Ji.,Liu, Yan-Guang.,Lyu, Hua-Hua.,...&Qiao, Shu-Qing.(2013).Rare earth elements in fine-grained sediments of major rivers from the high-standing island of Taiwan.JOURNAL OF ASIAN EARTH SCIENCES,69,39-47.
MLA	Li, Chuan-Shun,et al."Rare earth elements in fine-grained sediments of major rivers from the high-standing island of Taiwan".JOURNAL OF ASIAN EARTH SCIENCES 69(2013):39-47.