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通过对在渤、黄海海域73个站位的表层沉积物中粘土矿物种类和含量分析,研究了渤、黄海表层沉积物粘土矿物的组合类型、分布特征及其物质来源。研究结果表明,渤、黄表层粘土矿物组合为:伊利石、蒙脱石、高岭石、绿泥石,渤海表层粘土粒级沉积物中有方解石存在,黄海表层粘土粒级沉积物中有长石存在。伊利石含量最高,高岭石和绿泥石含量次之,蒙脱石含量最低。伊利石含量在渤海含量高,北黄海含量低,南黄海西高东低;蒙脱石含量在渤海高,在北黄海东高西低,在南黄海西高东低;高岭石含量在渤海低,在黄海高;绿泥石含量分布与蒙脱石相反,在渤海低,在北黄海东低西高,在南黄海西低东高。渤、黄海沉积物主要是入海河流输入的陆源物质,渤海沉积物以黄河物质为主。黄海沉积物主要来自黄海沿岸流携带来的现代黄河物质,老黄河口堆积体受侵蚀而搬运的物质,以及黄海暖流和长江冲淡水带来的长江物质。
By analyzing the types and contents of clay minerals in surface sediments of 73 stations in the Bohai Sea and the Yellow Sea, the types, distribution characteristics and sources of clay minerals in the surface sediments of the Bohai Sea and the Yellow Sea were studied. The results show that calcareous minerals are present in calcareous sediments of the surface sediments of the Yellow Sea and calcareous sediments in the Yellow Sea, Stone exists. The content of illite is the highest, the content of kaolinite and chlorite is second, and the content of montmorillonite is the lowest. The illite content is high in the Bohai Sea, low in the northern Yellow Sea, low in the west and high in the south of the Yellow Sea, high in the Bohai Sea, low in the east and west of the North Yellow Sea, low in the west and high in the South Yellow Sea, low in the Bohai Sea, In the Yellow Sea high; chlorite content distribution and montmorillonite opposite, in the Bohai Sea low, in the North Yellow Sea East low west high in the South Yellow Sea West low East. The sediments in the Bohai Sea and the Yellow Sea are mostly terrestrial materials input into the rivers entering the sea and mainly from the Yellow River sediments in the Bohai Sea sediments. Sediments in the Yellow Sea are mainly from the Yellow River sediment brought by the current Yellow River sediment erosion, sediment erosion and transport of material, and the Yellow River warm water and the Yangtze River brought the Yangtze River water supplies.