Study on Distribution and Material Sources of Clay Minerals in Surface Sediments of the Southern Yellow Sea

Based on the previously available data of clay minerals in the surface sediments of the Southern Yellow Sea,this paper mainly deals with the distribution of 4 types of the clay minerals(illite,kaolinite,smectite and chlorite).The research results show that the content of the illite in this area is the highest,the smectite or kaolinite are the second and chlorite is the lowest;the illite-smectite-kaolinete-chlorite-type rock is the main type of the clay minerals assemblage in the area,and the second one is illite-kaolinete-smectite-chlorite-type;the material source of clay mineral is mainly from the Yellow River and theYangtze River.