Mars Tectonism
causes the rocks below and surrounding it to deform. The surface of a planet
The reason for this is generally referred to as isostacy and rocks want to be in isostatic equilibrium.
which in gology normally referes to the deisre
At present the Martian crust in the southern hemisphere has thickness in the range of 69 - 80 km, which is much thicker than Earth's. It would be difficult to deform that crust. But in the distant geological past (3 - 4 billion years ago)