Grain Size Characteristics of Surficial Sediments and Their Response to Hydrodynamics over the Coastal Waters of Northern Jiangsu Province

• 责任者：Cheng Jun (Key Laboratory for Coastal and Island Development ; Ministry of Education ; Nanjing University ; Nanjing 210093 ; China) ; Gao Shu
• 刊名：Marine Geology & Quaternary Geology
• 出版年：2009
• 卷期：29(1)
• 关键词：海岸带沉积物 ; coastal sediments ; 黄海 ; Yellow Sea
• 页码：p.7-12
• 图表：4 illus. , 3 tables, 18 refs.
• 分类号：0200
• issnNo：ISSN0256-1492
• isbnNo：CN37-1117/P

///Surfical sediment samples were collected from the radial tidal ridge areas and tidal flats on the Jiangsu coast during September to November 2007. The moment grain size parameters are obtained by grain size analysis, and cluster analysis was carried out for the parameters. The result indicates that water depth being shallower than 9 m, sediment samples can be grouped into the same type. Likewise, when the water depth is more than 20 m, sediments belong to another type. However, if the water depth is between 9 and 20 m, there are various types of sediments. Grain size trends obtained using the Gao-Collins model show that there is general trend of transporting towards the central part of the coast, except for the Waimaozhu sandbank. Such a pattern is consistent with the measured sediment transport pathways reported in literature.This process results in the unified sediment grain size parameters for the surfical sediments between the Sheyang estuary and the Dafeng tidal flat, and different sediment grain size parameters between the Xiaomiaohong channel and the Dongzao tidal flat.