中太平洋CP区中新世CP30孔的沉积特征及成因

SEDIMENTARY CHARACTERISTICS AND GENESIS OF THE MIOCENE SEDIMENTS FROM CP AREA,MID-PACIFIC OCEAN

由于前人对中太平洋中新世的沉积特征及成因研究较少,笔者根据在中太平洋CP区采集的CP30孔柱状样品的测试分析结果,系统阐述了中新世的沉积物特征及元素含量在垂向的演变规律,利用grapher、spss软件及投点方式对所有样品的常、微量元素进行了R型因子分析,进一步揭示了元素的组合特征及其成因专属性,并对其沉积物成因进行了初步探讨。

Studies of sedimentary characteristics and genesis of the Miocene sediments in mid-Pacific Ocean have been very insufficient. Based on chemical analyses of samples collected from cores and surface sediments, this paper deals systematically with the spatial dis- tribution of the elements and their variations since mid-Miocene. In order to reveal the associations of the elements, R-mode factor a- nalysis for the main elements and trace elements in all samples by using softwares of Golden Grapher and SPSS. The sedimentary prove- nience and its environment have been discussed and the sedimentary model of Miocene sediments has been set up for the study area in mid-Pacific Ocean.