【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Ⅰ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SSW∠1 66°,第Ⅰ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.更多还原

【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 earthquake, landslip and rock-fall. Up today, crust activation is in progress and the average rate of crust uplift is 0.051mm/a.更多还原