This terminology comes from mining.
Fault hanging wall footwall.
Where the fault plane is sloping as with normal and reverse faults the upper side is the hanging wall and the lower side is the footwall.
In fault fault plane is called the hanging wall or headwall.
When working a tabular ore body the miner stood with the footwall under his feet and with the hanging wall above him.
A n fault forms when the hanging wall moves down relative to the footwall a.
Quite often the ore that a miner wants to get to is sitting right on that inclined plane the ore is in the fault.
The hanging wall occurs above the fault plane and the footwall occurs below it.
Mainly because the names hanging wall and footwall were named by miners who weren t trying to be cute.
Any fault plane can be completely described with two measurements.
The hanging wall composed of extended thinned and brittle crustal material can be cut by numerous normal faults.
When the fault plane is vertical there is no hanging wall or footwall.
The dip of a fault plane is its angle of inclination measured from the horizontal.
Draw a normal and reverse fault label the hanging wall and footwall for each also show how they move for each fault.
The unloading of the footwall can lead to isostatic uplift and doming of the more ductile material beneath.
Its strike and its dip.
Block below is called the footwall.
Hanging wall and footwall the two sides of a non vertical fault are known as the hanging wall and footwall.
The dip of a fault plane is its angle of inclination measured from the horizontal.
The block below is called the footwall.
The fault strike is the direction of the line of intersection between the fault plane and earth s surface.
Generally speaking the hanging wall and footwall of a fault are in contact with each other.
Most faults broken places are essentially inclined planes like this.
Normal fractures in rock with no offset where there has been no motion are called.
The fault strike is the direction of the line of intersection between the fault plane and earth s surface.
The line it makes on the earth s surface is the fault trace.
These either merge into the detachment fault at depth or simply terminate at the detachment fault surface without shallowing.
