本文据我们在赤道太平洋西部海底取得的表层和柱状样品对沉积物进行了研究,发现该区深海沉积作用比较复杂。确定了该区的溶跃层和碳酸钙补偿深度,发现了自生成分;找到了陆源物质的信息及宇宙尘。据岩性、生物特征及δ~(1/8)O等确定了沉积过程中气候变化状况及沉积时代,并结合~(14)C等估算了这里的沉积速率。 Based on the surface and column samples obtained from the seabed in the western Equatorial Pacific, the sediment was studied in this paper and found that the sedimentation in this area is complicated. Determine the area of ​​the dissolved layer and calcium carbonate compensation depth, found that the self-generating components; found the terrestrial material information and cosmic dust. Based on the lithology, biological characteristics and δ ~ (1/8) O, the climate change and sedimentary age in the sedimentary process were determined, and the sedimentation rate was estimated with ~ (14) C and so on.