Why do mountains form around big bend

The bends causes the overlaying of a crustal layer upon other layer. It results the formation of mountain on the overlying layer.

Explanation:

The big bends on the earth crust are the big faults. This fault formed due to the overlaying of a layer with other layers. The overlying crustal layer has deposits of lands on it and forms big mountains. This is a continuous and slow process. Sometimes the tectonic plate movement results in a sudden rise of some lands, and this forms new tabletop land and also dome mountains. The mountains are always formed due to the fault of the crust which are the bends on the earth.  The mountains also formed due to a volcanic eruption. Such mountains are known as volcanic or igneous mountains. This is the very reason the mountains form around big bends