川黔湘毗邻区的新构造运动  

NEOTECTONISM IN THE JUNCTURE OF SICHUAN,GUIZHOU AND HUNAN

作　　者：李伦炯[1] 

机构地区：[1]成都理工学院

出　　处：《四川地质学报》1997年第2期110-114,共5页Acta Geologica Sichuan

摘　　要：川黔湘毗邻区新构造运动是在NNE向倾斜的古地势环境下发展演化的。螺旋式间歇抬升运动形成三级夷平面、呈层水平溶洞及多级河流阶地；差异性掀斜作用形成特殊的水系组合特征，导致水平溶洞倒流水现象。自晚更新世以来，该区地壳抬升平均速率为0．45mm／a。现阶段地壳活化，持续掀斜抬升运动。Neotectonism in the juncture of Sichuan,Guizhou and Hunan was developed under conditions of NNE-sloped paleotopography. Spirally intermittent uplifting was responsible for three-stage planation surfaces,strati form horizontal karst cavities and multistage fluvial terraces and differential tilting brought about special river system and inverted water in horizontal karst cavities. The average rate of crustal uplift since the Late Pleistocene is 0. 4mm/a.Crustal tilt-lift and activation are in progress.

关 键 词：地壳活化 掀斜抬升 新构造运动 

分 类 号：P542[天文地球—构造地质学]