The bending of the rock changes the nature of the rock properties of the plastic. (Change not return back to its original state when the force acting down) form of a bend can be divided into two categories.
The bending of the stone layer changes the appearance of the stone layer with the properties of the plastic (the image is not returned back to the original condition when the force is at the same time). The pattern of bending can be divided into 2 types.
The cartoon of the stone layer changed the characteristics of the plastic layer. For example, irreversible deformation, very lazy. There are two types of curves.<br>