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太平洋和印度洋过渡地区的底质是由大陆架沉积物、深海沉积物和海底露头构成的。由于此区陆地和海底地形都是起伏不平的,因而沉积物的种类也是复杂的。根据组成沉积物颗粒的平均直径可把海底沉积物分成五种基本类型。按沉积物的来源可分为岩石成因、化学作用成因和生物成因,也可以进一步分成红粘土、抱球虫软泥等类型。为了确定沉积物的堆积速度和剪切力等,还对沉积物的特性进行了研究。这个非正式报告是由地质、海洋环境和海洋分析部门共同编辑的。
The sediments in the transitional regions of the Pacific and Indian Oceans are composed of continental shelf sediments, deep-sea sediments and sub-sea outcrops. As the land and seafloor terrain in this area are ups and downs, so the types of sediment is also complex. Seabed sediments can be divided into five basic types based on the average diameter of the particles that make up the sediment. According to the origin of sediments can be divided into rock causes, chemical causes and biological causes, can also be further divided into red clay, coccidiosis and other types. In order to determine the sediment deposition rate and shear stress, sediment characteristics have also been studied. This informal report was co-edited by the Geological, Marine Environment and Marine Analysis Department.