Abstract: Crust intermittent uplifting in Wujiang river basin was responsible for three-stratum horizontal karst cavities, three-stage level surfaces, four-stage fluvial terraces and differential crust tilt-lifting brought inverted water in horizontal karst cavities and five sorts special river system such as parallel form branch, tree branch form branch, asymmetry form branch, arc form branch, shed form branch. Character of intermittent and asymmetry crust tilt-lift is showed by frequently active earthqu

Key words: neotectonism, crust tilt-lift, Wujiang drainage basin

摘要： 乌江流域武隆至涪陵段河谷深切，沿岸发育3层水平成层溶洞、4级河流阶地、3级夷平面；以乌江为主干河流 发育平行状、树枝状、不对称状、弧状、放射状等5种水系，盲谷、倒流河发育；地震及滑坡崩塌等地质灾害活动频 繁，它们定性反映了研究区具间歇性不均匀抬升的特征．通过乌江两岸主干支流坡降比、第1级拟合夷平面的产状 要素定量计算及石英电子自旋共振测年数据，测算第Ⅲ级夷平面掀斜产状为ss1．66"，第1级夷平面的掀斜产 状为185．15~2，43~，本地区地壳上升的平均速率为0，501mm／a，

关键词: 新构造运动, 地壳掀斜抬升, 乌江流域