Yangtze River-derived sediments in the southwestern South Yellow Sea: Provenance discrimination and seasonal transport mechanisms

doi:10.1016/j.jseaes.2019.03.007

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 River-derived sediments in the southwestern South Yellow Sea: Provenance discrimination and seasonal transport mechanisms
	Lu, Jian 1,2,3; Li, Anchun 1,2,3; Zhang, Jin 1,3,4; Huang, Peng 1,2,3
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2019-06-01
卷号	176 页码:353-367
关键词	South Yellow Sea Clay minerals Sediment provenance Suspended sediment Changjiang Diluted Water
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2019.03.007
通讯作者	Lu, Jian(lujian@qdio.ac.cn)
英文摘要	The southwestern South Yellow Sea (SYS) is influenced by tremendous sediment loads derived from the Yellow River (Huanghe) and the Yangtze River (Changjiang). However, the influence of Yangtze River sediments and their transport mechanism in this area remain unresolved. In this study, we present the grain size, clay minerals, and elemental compositions of surface sediments from the southwestern SYS, together with an analysis of field observation seawater salinity and suspended sediment data, to investigate the provenance and transport mechanism of the sediments. Discrimination diagrams of clay minerals, Cr/Th vs. Sc/Al, and rare earth elements (REEs) indicate that the southwestern SYS sediments are mainly derived from the old Yellow River subaqueous delta and the Yangtze River. Interestingly, Yangtze sediments enter the SYS in ways that differ seasonally. In summer, Yangtze sediments may be transported into the central SYS by the dispersion of Changjiang Diluted Water (CDW) and may also be transported northwestward by the Subei Coastal Current (SCC) to the area off the Jiangsu coast. In winter, the Yangtze-derived sediments deposited off the Jiangsu coast in summer are transported into the central and/or even north SYS under the combined effects of the SCC, Yellow Sea Coastal Current (YSCC), and Yellow Sea Warm Current (YSWC). Throughout the transport processes, there is an alternation between a source and sink of Yangtze sediments off the Jiangsu coast; the coast serves as a sink of Yangtze sediments in summer but as a source of SYS sedimentation in winter. The depositional and transport mechanisms of Yangtze-derived sediments are closely associated with seasonal variations in the circulation system of the SYS.
资助项目	National Natural Science Foundation of China (NSFC)[41506060] ; National Natural Science Foundation of China (NSFC)[41430965] ; National Programme on Global Change and Air-Sea Interaction[GASI-GEOGE-02]
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000466823600028
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/161331]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Lu, Jian
作者单位	1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lu, Jian,Li, Anchun,Zhang, Jin,et al. Yangtze River-derived sediments in the southwestern South Yellow Sea: Provenance discrimination and seasonal transport mechanisms[J]. JOURNAL OF ASIAN EARTH SCIENCES,2019,176:353-367.
APA	Lu, Jian,Li, Anchun,Zhang, Jin,&Huang, Peng.(2019).Yangtze River-derived sediments in the southwestern South Yellow Sea: Provenance discrimination and seasonal transport mechanisms.JOURNAL OF ASIAN EARTH SCIENCES,176,353-367.
MLA	Lu, Jian,et al."Yangtze River-derived sediments in the southwestern South Yellow Sea: Provenance discrimination and seasonal transport mechanisms".JOURNAL OF ASIAN EARTH SCIENCES 176(2019):353-367.