冲绳海槽中段沉积地球化学分区及其物源指示意义

通过对冲绳海槽中段表层沉积物５１个样品的３０个元素的地球化学数据的Ｒ型因子分析计算，确定了以８个因子为代表的元素组合，在综合、对比因子得分的基础上，把研究区分为１０个元素组合区。根据元素组合的成因专属性，把研究区分为火山源区，热液源区，陆源、生物源和自生源区。

冲绳海槽中段沉积岩芯的氧碳同位素测定和YD事件

In this paper, the determination and analysis of oxygen and carbon isotopes were carried out on 155 core and 180 core respectively. These data provides us with a fundamental understanding of the paleotemperature and paleoenvironmental evolution features and climate-stratigraphic classification of central Okinawa Trough since the late-glacial.