The rocks in the Great Canyon are mainly metamorphic rocks. The base of which is quite old. They have experienced a lot of crust changes and they upraised violently during the quaternary period. The covering layer is rather thin and shallow; therefore the element content in the lithosphere is much less than the crust Clark value. This phenomenon was probably because the climate was too warm or the living creatures in the bottom of the ocean were too prosperous at that time. 

Distant view of Mount Jialabailei and Namjagbarwa at the entrance to the Great Canyon

　　In the gneiss stratum near Garlungla of this district, there is a layer of white and light green marble intercalation and a layer of tremlite. The thickness of them varies from several meters to tens of meters. The consistency of these marbles and tremlite are very pure. The direction of their distribution is in north-west direction or north-west-west direction. They incline towards the southeast with an angle of 600-700. They can be excavated as construction materials or materials to make limes.