Distribution of CaO and Smectite in Surface Sediments off the Yellow River Mouth and in the Nearby Bohai Sea and the Implications for Dispersion of the River Sediments to the Sea

• 责任者：Qiao Shuqing (Key Laboratory of Marine Sedimentology & Environmental Geology ; First Institute of Oceanography ; State Oceanic Administration ; Qingdao 266061 ; China) ; Fang Xisheng
• 刊名：Marine Geology & Quaternary Geology
• 出版年：2010
• 卷期：30(1)
• 关键词：海洋沉积物 ; marine sediments ; 搬运作用 ; sediment transport ; 黄河三角洲 ; Yellow River Delta ; 渤海 ; Bohai Sea
• 页码：p.16-23
• 图表：3 illus., 29 refs.
• 分类号：0200
• issnNo：ISSN0256-1492
• isbnNo：CN37-1117/P

A large-scale investigation of surface sediments was carried out off the Yellow River Mouth and in the nearby Bohai Sea during August-September, 2007. Approximately 250 samples were selected to determine CaO and smectite content using X-ray fluorescence spectrometry and X-ray diffraction. The analyzed data show that the CaO content distribution has similar occurrence to the smectite, which decreases seaward gradually from the Yellow River Mouth. The results demonstrate that the CaO and semctite contents in surface sediments of southern Bohai Sea can not only be used as indictors to trace the dispersion of the Yellow River sediments to the sea in the study area, but also has important implications of hydrodynamical conditions off the river mouth.