摘要
长江三峡地区的层状地貌现象表明峡区地壳运动具有阶段性整体抬升的特点．根据三峡期夷平面的高程分布，获得本区自晚更新世（约１０万年）以来的平均抬升速率为１．５～５．０ｍｍ／ａ；根据长江一级阶地的高程计算，全新世（约１万年）以来的抬升速率为０．７～２．１ｍｍ／ａ．
in the Three Gorges region of the Yangtze river, the stepped landform phenomenon indicate that the crust possess a feature of mass and intermittent uplifted. The relative elevation for the planation surface of the Three Gorges Period exhibit where has raisedl. 5-5. 0 mm/a since late pleistocene (about 100, 000 yr. ), and has raised 0. 7-2. 1mm/a which is estimated by the relative height of the first terrace of the Yangtze river.
出处
《水电能源科学》
北大核心
1996年第1期52-55,共4页
Water Resources and Power
关键词
长江三峡
构造地貌
岩溶地貌
抬升速率
the Three Gorges , planation surface, karst landform, terrace, the uplift rate
