论文部分内容阅读
据定量分析，发现辐射沙洲海底表层沉积中有孔虫有99种．53属组成．这些有孔虫可划分为4个组合：A．Ammoniabeccarii－Elphidiummagellanicum；B．Ammoniabeccarii－Protelphidiumglabrum；C．Ammoniabeccarii－A．pauciloculata；D．Ammoniabeccarii-Epistominellanaraensis.以有孔虫分布、组成和壳质特征为指示．对研究区的水体特征、泥沙运动及海底动态等作了讨论．
According to the quantitative analysis, 99 species of foraminifera were found in the surface sediments of the radiation sandbank. 53 genus composition. These foraminifers can be divided into four groups: A. Ammoniabeccarii-Elphidiummagellanicum; B. Ammoniabeccarii-Protelphidiumglabrum; Ammoniabeccarii-A. pauciloculata; d. Ammonia beccarii-Epistominellanaraensis is indicated by foraminifera distribution, composition and chitin traits. The characteristics of water bodies, sediment movement and seabed dynamics in the study area are discussed.