Martian mountains are the result of natural erosion on the sedimentary bed of this region. The type of soil and the animal remains in them are a good indication of the fact that once upon a time, this whole region was the sea.
Various theories have been proposed for this phenomenon, the most likely of which is the increase in ground pressure due to the presence of hydrocarbon gases.
Gandom Beryan is actually a vast plain covered with volcanic black rocks that absorbs sunlight and its temperature becomes very hot and unbearable in summer and even other seasons.