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对海岸带沉积样品进行系统分析,表明微量元素B的含量与B/Ga比值、Sr的含量与Sr/Ba比值、Rb的含量与Rb/K比值,以及沉积磷酸盐中Ca/Ca+Fe比值,随水体含盐度增加,而含量与比值逐渐增大。这些微量元素的含量与比值,同现代湖泊和海洋沉积物分析数据对比,系介于海相与陆相之间,但偏于海相。说明用地球化学法区分海岸沉积物特征是有效的,并为认识古代类似沉积层提供依据。关于泥质物中的有关元素的富集与分布,是随着沉积的自然地理环境的变化而变化的。这种变化是决定元素迁移的主要方式,并控制着沉积物内元素的分布。
Systematic analysis of sedimentary samples from coastal zone showed that the ratio of trace elements B to B / Ga ratio, Sr content and Sr / Ba ratio, Rb content and Rb / K ratio, and the ratio of Ca / Ca + Fe in sedimentary phosphate , With the salinity of the water increases, while the content and ratio increased. The content and ratio of these trace elements, compared with the analysis data of modern lakes and marine sediments, are between the marine and continental facies, but they are biased towards the marine facies. It shows that it is effective to distinguish the features of coastal sediments by geochemical methods and provide the basis for understanding similar sediments in ancient times. The enrichment and distribution of related elements in the muddy material will vary with the physical and sedimentary environment. This change is the primary means of determining element migration and controlling the distribution of the elements within the sediment.