The fault strike is the direction of the line of intersection between the fault plane and earth s surface.
Footwall block and hanging wall block.
Block below is called the footwall.
Low angle normal faults with regional tectonic significance may be designated detachment faults.
Identify the type of fault illustrated by each photo and describe the type of stress that produced it.
The hanging wall block has moved up in relation.
The two sides of a non vertical fault are called the hanging wall and footwall.
These names came from miners who excavated ore.
An upthrown block between two normal faults dipping away from each other is a horst.
Hanging wall block and footwall block the rock immediately above a fault surface is the hanging wall block and the one below is the footwall block.
In a normal fault the hanging wall moves downward relative to the footwall.
The footwall is the block that is below the fault.
A downthrown block between two normal faults dipping towards each other is a graben.
The hanging wall is the fault block that is above the fault.
Label the hanging wall block and the footwall block on each of the faults illustrated in figure 1.