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太平洋铁锰结核中Sr,Ti的分布特征及其来源
鲍根德1, 张海生1
国家海洋局第二海洋研究所
摘要:
铁锰结核中Sr,Ti的平均含量为0.040%和0.64%并随着结核粒径变细而增加。Sr,Ti的分布规律相同,其含量随水深的增加而升高。
关键词:  铁锰结核  粒度分级
DOI：
分类号:
基金项目:
DISTRIBUTION CHARACTER AND SOURCE OF Sr, Ti IN FERROMANGANESE NODULES FROM THE PACIFIC
Abstract:
This paper deals with the distribution and source of Sr, Ti in ferromanganese nodules from the Pacific North region (7°-13°N, 178°-165°W) by analysing the Sr, Ti, Fe, Mn in the 80 ferromanganese nodules samples from 26 stations.The result shows that the average values of Sr, Ti in ferromanganese nodules are 0.040% and 0.64% respectively, increase with the decrease of the size of the ferromanganese nodules and the depth of sea water. There is a positive correlation between Sr and Ti. As the source of Sr, Ti mainly come from the deposition of Sr2+, Ti2+, the concentrations of Sr and Ti in the ferromanganese nodules in glossy surface exposed to sea water are higher than that in rough surface contacting the sediment.
Key words:  Ferromanganese nodules  Grain size classification
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