How To Identify Hanging Wall And Footwall

The main components of a fault are 1 the fault plane 2 the fault trace 3 the hanging wall and 4 the footwall.

How to identify hanging wall and footwall.

To determine which is which visualize yourself creating a mine in along the fault. The fault plane is where the action is. Dip slip movement occurs when the hanging wall moved predominantly up or down relative to the footwall. It is a flat surface that may be vertical or sloping.

They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins. When working a tabular ore body the miner stood with the footwall under his feet and with the hanging wall above him. In an ideal cirque the headwall is semicircular in plan view. In normal faulting the hanging wall moves downwards in relation to the footwall.

To correctly identify a fault you must first figure out which block is the footwall and which is the hanging wall. In a strike slip fault they slide past each other the foot wall and hanging wall are not there because it has. Other articles where hanging wall is discussed. Draw a normal and reverse fault label the hanging wall and footwall for each also show how they move for each fault.

Every fault tilted from the vertical has a hanging wall and 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 hanging wall occurs above the fault plane and the footwall occurs below it. Other articles where normal fault is discussed.

Cirques tarns u shaped valleys arêtes and horns. The line it makes on the earth s surface is the fault trace. But that is when the foot wall moves down the hanging wall moves up. Hanging wall and footwall.

This situation however is generally found only in cirques cut into flat plateaus. Normal faults are common. This terminology comes from mining. The two sides of a non vertical fault are known as the hanging wall and footwall.

Normal dip slip faults are produced by vertical compression as earth s crust lengthens. The hanging wall is above the footwall. An arcuate cliff called the headwall. The hanging wall slides down relative to the footwall.

If the motion was down the fault is called a normal fault if the movement was up the. Hanging wall movement determines the geometric classification of faulting.