摘要
天山广泛发育着三级夷平面,削平了古、中生代多期构造形态及褶皱岩层。天山夷平面是在古华力西褶皱山脉的基础上,在地壳相对稳定的条件下,经中生代,早第三纪的剥蚀夷平,于晚第三纪末至第四纪初新构造运动作用下,被抬升到不同高度,而后受第四纪以来新构造运动的不断作用及天山独特气候条件的影响,使夷平面在垂直方向或水平方向都存在着明显差异,表面发生了一系列变形。
There are three grade planation surfaces developed extensively in the Tian Shah Mountains. The structural shapes and fold strata formed in several tectonic movements of the Palaeozonic Era and Mesozonic Era were razed. Under the relatively stable condition of the earth crust, the ancient Tian Shan Mountains were denuded into the peneplain on the basis of the ancient fold mountains. Then, the peneplain was raised to the different height by neotectonie movements at the end of latter Tertiary. After that, the planation surfaces of the Tian Shan Mountains were acted successively by neotectonic movements since Quaternary, and affected by climate. Tht planation surfaces of the Thin Shan Mountains possess the obvious differences on the vertical and horizontal aspects, and the surfaces happened a series of changes.
出处
《干旱区地理》
CSCD
北大核心
1992年第4期14-19,共6页
Arid Land Geography
关键词
新疆
天山
夷平面
形态特征
Xinjiang, planation surface of the Tian Shan Mountains, feature
