【摘要】 本文以1983年10月和1984年6月两个航次期间在南海中部海域内采集的130个站位的沉积物组分全面鉴定(粒度、砂级全组分、轻重碎屑矿物、粘土矿物、有孔虫、钙质超微、放射虫、硅藻和孢粉等生物鉴定、化学定量分析、少量¹⁴C测年等)为基础,以1∶300万南海中部沉积物类型图为依据,讨论了沉积物主要类型、分布和沉积作用特点。更多还原

【Abstract】 A map of sediment types in scale of 1:3,000,000 is compiled on the analytical data including grain size, the composition of sand fraction, the light and heavy detrital minerals, clay minerals, the fauna identification of foraminifera, calcareous nannoplankton, radiolarian, diatom and spore-pollen, chemical quantitative analysis and 14C dating et al of 130 surface sediment samples from the central South China Sea involving water depth of 480-4400 m in two cruises of October 1983 and June 1984. Based on the map main types and distribution of the sediments as well as deep sea sedimentation are discussed.更多还原