shear fold

These folds are characteristic of a-type fold which are commonly found in ductile shear zones.

它像蘑菇一样属于菌类。这些褶皱的特征表明它们属于a型褶皱，而a型褶皱通常发育在韧性剪切带中。

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；

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。

The ductile shear zone demarcates between the North China Platform in West Liaoning and Xing' an fold system in Inner Mongolia, which from E to W the direction of structure line gradually transited from EW to NEE, then NE.

该剪切带构成了辽西地区华北地台与内蒙兴安褶皱系两个构造单元重要分界线。剪切带从东至西，构造线方位由EW向逐渐转向NEE至NE向。