解答:地層受了外力作用,發生应力,由应力產生应變——變形,如褶皺和破裂等。斷層就是比較大的破裂,在斷口兩侧有相对的位移。其發生和發展的方向一般是有规律的。我們掌握了它們發展的規律,对在野外工作中認識斷層是有很大幫助的。我們在野外,首先要注意当地的主要搆造——褶皺軸向。与招軸平行的斷層即縱斷層, ANSWER: Stratums are subjected to external forces, stressed and stressed by strain - deformations such as folds and ruptures. The fault is a relatively large rupture with relative displacement on both sides of the fracture. The occurrence and development of the direction is generally regular. We have mastered the laws governing their development and are very helpful in understanding faults in field work. We are in the wild, we must first pay attention to the main structure of the region - folding axis. Parallel to the axis of the fault that longitudinal fault,