Normal faults are common.
How to identify hanging wall and footwall.
It is a flat surface that may be vertical or sloping.
Hanging wall and footwall.
Normal dip slip faults are produced by vertical compression as earth s crust lengthens.
In a fault plane that dips 45 degrees the overlying rock unit is the hanging wall and the underlying rock unit is the footwall.
The two sides of a non vertical fault are known as the hanging wall and footwall.
Cirques tarns u shaped valleys arêtes and horns.
The hanging wall occurs above the fault plane and the footwall occurs below it.
In a strike slip fault they slide past each other the foot wall and hanging wall are not there because it has.
When working a tabular ore body the miner stood with the footwall under his feet and with the hanging wall above him.
But that is when the foot wall moves down the hanging wall moves up.
The fault plane is where the action is.
They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins.
To determine which is which visualize yourself creating a mine in along the fault.
An arcuate cliff called the headwall.
The line it makes on the earth s surface is the fault trace.
The main components of a fault are 1 the fault plane 2 the fault trace 3 the hanging wall and 4 the footwall.
More common are headwalls angular in map view due to irregularities in height along.
The hanging wall is above the footwall.
To correctly identify a fault you must first figure out which block is the footwall and which is the hanging wall.
This situation however is generally found only in cirques cut into flat plateaus.
Other articles where hanging wall is discussed.
In an ideal cirque the headwall is semicircular in plan view.
This terminology comes from mining.
Draw a normal and reverse fault label the hanging wall and footwall for each also show how they move for each fault.
Then you determine the relative motion between the hanging wall and footwall.
The hanging wall slides down relative to the footwall.
Hanging wall movement determines the geometric classification of faulting.
In normal faulting the hanging wall moves downwards in relation to the footwall.
Dip slip movement occurs when the hanging wall moved predominantly up or down relative to the footwall.
Other articles where normal fault is discussed.
