How To Determine Hanging Wall And Footwall On Map

Other articles where hanging wall is discussed.

How to determine hanging wall and footwall on map.

This terminology comes from mining. An arcuate cliff called the headwall. A type of fault in which the hanging wall moves down relative to the footwall and the fault surface dips steeply commonly from 50 o to 90 o groups of normal faults can produce horst and graben topography or a series of relatively high and low standing fault blocks as seen in areas where the crust is rifting or being pulled apart by plate tectonic activity. In an ideal cirque the headwall is semicircular in plan view.

The main components of a fault are 1 the fault plane 2 the fault trace 3 the hanging wall and 4 the footwall. If the hanging wall drops relative to the footwall you have a normal fault. It is that simple. Hanging wall and footwall.

Block below is called the footwall. 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 line it makes on the earth s surface is the fault trace. We distinguish between dip slip and strike slip hanging wall movements.

The hanging wall is above the footwall. When working a tabular ore body the miner stood with the footwall under his feet and with the hanging wall above him. This situation however is generally found only in cirques cut into flat plateaus. Draw a normal and reverse fault label the hanging wall and footwall for each also show how they move for each fault.

The block below your feet is the footwall and the one upon which you would hang your miner s lamp is the hanging wall. Hanging wall movement determines the geometric classification of faulting. It is a flat surface that may be vertical or sloping. The fault strike is the direction of the line of intersection between the fault plane and earth s surface.

Dip slip movement occurs when the hanging wall moved predominantly up or down relative to the footwall. In normal faulting the hanging wall moves downwards in relation to the footwall. The fault plane is where the action is. The two sides of a non vertical fault are known as the hanging wall and footwall.

Strike slip faults are vertical and thus do not have hanging walls or footwalls. The dip of a fault plane is its angle of inclination measured from the horizontal. If the motion was down the fault is called a normal fault if the movement was up the.