Yangtze- and Taiwan-derived sediments on the inner shelf of East China Sea

doi:10.1016/j.csr.2009.08.017

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Yangtze- and Taiwan-derived sediments on the inner shelf of East China Sea
	Xu, Kehui 1; Milliman, John D.2; Li, Anchun 3; Liu, J. Paul 4; Kao, Shuh-Ji 5; Wan, Shiming 3
刊名	CONTINENTAL SHELF RESEARCH
	2009-10-15
卷号	29 期号:18 页码:2240-2256
关键词	Sediment Clay Mineralogy Yangtze River East China Sea Taiwan
ISSN号	0278-4343
DOI	10.1016/j.csr.2009.08.017
文献子类	Article
英文摘要	X-ray diffraction (XRD) mineralogical and grain-size analyses indicate that inner continental shelf sediments in the East China Sea (ECS) represent a unique mixing of clays derived from the Yangtze River and silts/sands from small western Taiwanese rivers. Taiwanese (e g., Choshui) clays (< 2 mu m) display no smectite but the best illite crystallinity and are only distributed along southeastern Taiwan Strait. Both Yangtze and Taiwanese river clays are illite-dominated, but the poor illite crystallinity and the presence of smectite and kaolinite indicate that Taiwan Strait clays are mainly Yangtze-dominated. In contrast, medium silts (20-35 mu m) and very fine sands (63-90 mu m) in the Taiwan Strait are characterized by low feldspar/quartz, low K-feldspar/plagioclase and high kaolinite/quartz, indicating their provenance from Taiwanese rivers. Taiwanese silts and sands are introduced primarily by the way of typhoon-derived floods and transported northward by the Taiwan Warm Current during summer-fall months. Yangtze clays, in contrast, are widely dispersed southward about 1000 km to the western Taiwan Strait, transported by the China Coastal Current during winter-spring months Since most Taiwan Strait samples were collected in May 2006, clay results in this paper might only represent the winter-spring pattern of the dispersal of Yangtze sediments. (C) 2009 Elsevier Ltd. All rights reserved.; X-ray diffraction (XRD) mineralogical and grain-size analyses indicate that inner continental shelf sediments in the East China Sea (ECS) represent a unique mixing of clays derived from the Yangtze River and silts/sands from small western Taiwanese rivers. Taiwanese (e g., Choshui) clays (< 2 mu m) display no smectite but the best illite crystallinity and are only distributed along southeastern Taiwan Strait. Both Yangtze and Taiwanese river clays are illite-dominated, but the poor illite crystallinity and the presence of smectite and kaolinite indicate that Taiwan Strait clays are mainly Yangtze-dominated. In contrast, medium silts (20-35 mu m) and very fine sands (63-90 mu m) in the Taiwan Strait are characterized by low feldspar/quartz, low K-feldspar/plagioclase and high kaolinite/quartz, indicating their provenance from Taiwanese rivers. Taiwanese silts and sands are introduced primarily by the way of typhoon-derived floods and transported northward by the Taiwan Warm Current during summer-fall months. Yangtze clays, in contrast, are widely dispersed southward about 1000 km to the western Taiwan Strait, transported by the China Coastal Current during winter-spring months Since most Taiwan Strait samples were collected in May 2006, clay results in this paper might only represent the winter-spring pattern of the dispersal of Yangtze sediments. (C) 2009 Elsevier Ltd. All rights reserved.
学科主题	Oceanography
语种	英语
WOS记录号	WOS:000271694100008
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/3723]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Coastal Carolina Univ, Dept Marine Sci, Conway, SC 29528 USA 2.Coll William & Mary, Sch Marine Sci, Gloucester Point, VA USA 3.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 4.N Carolina State Univ, Dept MEAS, Raleigh, NC 27695 USA 5.Acad Sinica, Res Ctr Environm Changes, Taipei, Taiwan
推荐引用方式 GB/T 7714	Xu, Kehui,Milliman, John D.,Li, Anchun,et al. Yangtze- and Taiwan-derived sediments on the inner shelf of East China Sea[J]. CONTINENTAL SHELF RESEARCH,2009,29(18):2240-2256.
APA	Xu, Kehui,Milliman, John D.,Li, Anchun,Liu, J. Paul,Kao, Shuh-Ji,&Wan, Shiming.(2009).Yangtze- and Taiwan-derived sediments on the inner shelf of East China Sea.CONTINENTAL SHELF RESEARCH,29(18),2240-2256.
MLA	Xu, Kehui,et al."Yangtze- and Taiwan-derived sediments on the inner shelf of East China Sea".CONTINENTAL SHELF RESEARCH 29.18(2009):2240-2256.