IOCAS-IR  > 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, Jian1,2,3; Li, Anchun1,2,3; Zhang, Jin1,3,4; Huang, Peng1,2,3
2019-06-01
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
Volume176Pages:353-367
Corresponding AuthorLu, Jian(lujian@qdio.ac.cn)
AbstractThe 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.
KeywordSouth Yellow Sea Clay minerals Sediment provenance Suspended sediment Changjiang Diluted Water
DOI10.1016/j.jseaes.2019.03.007
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000466823600028
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/161332
Collection海洋地质与环境重点实验室
Corresponding AuthorLu, Jian
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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