The cleavage and schistosity acted as an axial plane role in the early generation of compressed shear fold, and changed into a slip plane in the later generation of flexural slip fold.

片理（劈理）为早世代挤压-剪切褶皱的轴面片理，又成为晚世代弯滑褶皱的滑动面；

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The ore belts, mining area, deposits and ore-bodies are all controlled by the deep faults, large scale shear zones and the fold and fault-crack system aside.

深断裂带、大型剪切带及其旁侧的褶皱及断裂裂隙系统控制矿带、矿区、矿床和矿体。

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The equilibrium equation of surrounding rock mining fault system is established. The fault destablizing process with shear failure pattern belongs to fold catastrophe model.

建立了矿井围岩-断层系统的准静态形变平衡方程，将呈剪切破裂形式的断层失稳过程归结为折迭突变模型。

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