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岩层的褶皱变形是一种常见的而又复杂的构造现象。地质工作者常用褶皱变动在时间上的发展情况,将构造运动划分成各个构造期。从褶皱形态在空间上的分布规律,来探索构造应力的作用状况。有时根据沉积特征和褶皱形态可划分出上、下构
The fold deformation of the rock formation is a common and complicated tectonic phenomenon. Geological workers commonly used in fold changes in the development of the fold, the tectonic movement is divided into various structural periods. From the folds in the spatial distribution of patterns, to explore the role of tectonic stress. Sometimes based on sedimentary characteristics and fold patterns can be divided into upper and lower structure