Modern Sedimentation Rate, Budget and Supply of the Muddy Deposits in the East China Sea

详细信息   

• 责任者：Li Jun (Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology ; Ministry of Land and Resources ; Qingdao Institute of Marine Geology ; Qingdao 266071 ; China) ; Hu Bangqi
• 刊名：Geological Review
• 出版年：2012
• 卷期：58(4)
• 关键词：沉积速率 ; sedimentation rates ; 物源分析 ; provenance analysis ; 东海 ; East China Sea
• 页码：p.745-756
• 图表：6 illus., 3 tables, 82 refs.
• 分类号：0200
• issnNo：ISSN0371-5736
• isbnNo：CN11-1952/P

摘要

///In this study, on the basis of a number of ¹³⁷Cs and ²¹⁰Pb-derived sediment accumulation rate （SR） data, the authors firstly evaluated the modern SR and SF over the entire muddy areas of the ECSs shelf, and then calculated a sedimentary budget for the muddy areas of ECSs shelf to assess whether the sedimentary  mass  is balance or not. The authors also compared the modern and Holocene sedimentary  accumulation rates  in different muddy areas. The results show that sedimentary  source is a dominant factor controlling the formation of these muddy areas of the ECSs shelf. The sediment delivered by adjacent rivers is the major sedimentary  source, whereas the muddy areas of the ECSs shelf are typical sedimentary sink. The authors emphasized the role of small rivers in the sedimentary process of the local river estuaries and its contribution to the muddy areas.