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通过电镜、电子探针和X射线等项分析,对东海沉积物中的有孔虫、腹足类、双壳类、苔藓、珊瑚、海胆等骨屑进行了矿物学研究,确定了矿物成分与生物属种的关系,并基于有孔虫壳体化学成分将壳体分为均质壳和异质壳,生物碳酸盐中镁主要富集在方解石及镁方解石中,锶在方解石和镁方解石中的分配系数(D)相似,为0.11—0.14;在文石质骨屑中D=1.09-1.20。碳氧同位素组成与生物属种有明显关系。据一些有孔虫壳体氧同位素偏差值计算的水温来看,本次测定的有孔虫属种的骨屑不能作为理想的骨屑温度计。
The mineralogy of foraminifera, gastropods, bivalves, moss, corals, sea urchins and other bone debris in the sediments of the East China Sea was studied by electron microscopy, electron probe and X-ray analysis. Biological species, and based on the chemical composition of the foraminiferal shell will be divided into homogeneous shells and heterogeneous shell, biogenic carbonate magnesium is mainly concentrated in calcite and calcite, strontium in calcite and calcite In the distribution coefficient (D) is similar to 0.11-0.14; in the rock stone bone debris D = 1.09-1.20. Carbon and oxygen isotope composition and biological species have a clear relationship. According to some foraminiferal shell oxygen isotope deviations calculate the water temperature point of view, this determination of foraminifera bone chips can not be as ideal bone chip thermometer.