In a non-vertical fault (where the fault plane dips), the footwall is the section of the fault that lies under the fault, while the hanging wall lies over the fault.
The names come about from the mining industry because important ore minerals were commonly deposited along fault planes. In a mine along a fault, the miner would be standing on the block lower block and hanging his lantern from the upper block (hence, foot wall and hanging wall).
In perfectly vertical faults, you cannot designate a footwall or a hanging wall.
Astrike-slip fault it when the hanging wall and the footwall slide past each other.
thrust
a normal fault
Reverse Fault
Thrust
The footwall is the block that is below the fault. The hanging wall is the fault block that is above the fault.
No
No
Astrike-slip fault it when the hanging wall and the footwall slide past each other.
thrust
normal fault
thrust
a normal fault
Reverse Fault
Thrust
Thrust
Thrust