一、前言南京地区位于华北地台与华南加里东褶皱带交接处。其北缘的浦口、浦镇、六合位于华北地台上,其他部分均居华南加里东褶皱带内。由于底基处于稳定区和活动区的边界上,故构造活动颇为显著。本文就新构造运动的各种迹象说明其活动在晚第三纪开始,迄今仍未停息。 I. Introduction Nanjing is located at the junction of North China Platform and South China Caledonian Fold Zone. Its northern edge of Pukou, Puzhen, Liuhe are located in North China on the platform, the other parts of the South China Caledonian folding belt. Tectonic activity is significant because the substrate is at the boundary between the stable and active areas. In this paper, various signs of the new tectonic movement indicate that its activities started in the late Tertiary and have not stopped so far.