Surface sediment samples about 397 were collected along coastal waters of Rudong in South Yellow Sea in 2003. On the basis of grain size analysis, grain size parameters were acquired. The results show that the surface sediments in the coastal waters of Rudong mainly contains sandy silt and silt sand; and the major source of material were residue of ancient Yangtze River, a certain number of present Yangtze River material which mixed ancient Yangtze River material changed by modern hydrodynamics, and material from Jiangsu coastal erosion. Through analysis of grain size trend, the sediments of deep channel in the waters was transported towards the open sea, while there was a convergence of the grain size trends located west of Haiyang Island and Taiyang Island.%2003年在南黄海如东近岸海域获取了表层底质样397个,进行粒度分析,获取粒度参数.分析结果表明,如东近岸海域的表层沉积物以砂质粉砂和粉砂质砂为主,其物源主要是古长江残留物质,受现代水动力作用改造并掺混一定数量的现代长江入海物质和江苏沿岸侵蚀的物质.采用粒径趋势进行分析,发现该海域深槽中的沉积物主要向外海输运,但农中部海洋沙、太阳沙以西存在一个沉积物汇聚中心.
展开▼
