In a fault, the hanging wall moves up relative to the footwall

When a hanging-wall moves upward relative to a foot-wall, then we call this type of fault as the reverse fault. Reverse faults are generated because of the compressional forces exerted on both the sides of the fault.

Explanation:

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks