【摘要】 根据对南京秦淮河流域第四系标准钻孔(钻孔编号:N06S6)系统的岩性描述、沉积相分析、采样测龄和孢粉分析,初步提出了南京秦淮河流域第四纪晚期地层的划分方案,建立了秦淮河流域晚第四系河流相地层单位——汉府组,并依据N06S6钻孔显示的岩性及其沉积相差异,将汉府组进一步划分为上、中、下3个岩性段。在此基础上,结合孢粉的研究结果,将本地区植被演替、气候波动变化恢复为5个阶段,并与前人的相关研究成果进行了对比。结果表明,南京地区晚更新世以来地形、地貌大体相似,总体面貌变化不大,反映这一时期本区新构造运动较弱。更多还原

【Abstract】 Based on data of systematic age sampling,Quaternary sediment lithology and palynomorph assemblage analysis on the standard well(N06S6)for Quaternary research in Qinhuai River valley,a stratigraphic unit,Hanfu Formation since Late Pleistocene,was set up for Quaternary stratigraphy in the Qinhuai River valley.Five palynological assemblages were distinguished through an intensive study on pollens and spores from the well,and five stages in the evolution of vegetation and climate were correspondingly reconstructed for the Late Quaternary in this area.The Quaternary paleoenvironment,paleoclimate and paleo- landform was also recovered in the area,which indicates that the paleo-landform changed little and new tectonic movement during this time was weak in the study area.更多还原