【摘要】 <正> 深海垂向沉积物化学元素的行为,是研究大洋沉积物组成的重要部分。它将为远洋沉积环境和沉积历史的探讨提供依据。本文根据1976年至1978年国家海洋局进行综合海洋调查所采集美拉尼西亚的两个沉积岩芯和斐济海盆一个沉积岩芯(图1),进行、钛、钙、硅、铁、锰、铝的测定。更多还原

【Abstract】 The chemical element action of vertical sediments in the deep-sea is an important part of the oceanic sediment composition study. It can furnish evidence for the study of the oceanic sedimentary environment and sedimentary history. This paper is based on the data from the on-the-spot comprehensive oceanographic investigations in 1976-1978 made by the SOA of China. The contents of Ti, Ca, Si, Fe, Ma and Al in the two sediment cores from Melanesia Basin and one sediment core from Fiji Basin have been determined. The results are as follows;The distributions of the deep-sea vertical sediment chemical element content vary with the sedimentary environment. The sediment chemical elements are closely related. The Si/Al ratio in the investigation area is very similar to those in the three Ocean (Pacific, Atlantic and Indian Oceans). The Ti/Mn ratio is a little higher than that in the Pacific Ocean, but it is very similar to that in the Mediterranean Sea. The Fe/Mn ratioes are not very much alike in the three Oceans.更多还原