Fault Types And Hanging Wall

A fault in which hanging wall hw has apparently come down with respect to the footwall fw is termed as normal fault.

Fault types and hanging wall.

The hanging wall moves up and over the footwall. It is a flat surface that may be vertical or sloping. When movement along a fault is the reverse of what you would expect with normal gravity we call them reverse faults. The fault plane in a reverse fault is also nearly vertical but the hanging wall pushes up and the footwall pushes down.

Depending upon the inclination of the fault number of types of faults are recognized. This type of faulting occurs in response to extension. The main components of a fault are 1 the fault plane 2 the fault trace 3 the hanging wall and 4 the footwall. Strike slip faults have a different type of movement than normal and reverse faults.

The hanging wall occurs above the fault plane and the footwall occurs below it. This sort of fault forms where a plate is being compressed. This terminology comes from mining. Thrust faults with a very low angle of dip and a very large total displacement are called overthrusts or detachments.

Normal dip slip faults are produced by vertical compression as earth s crust lengthens. Occurs when the hanging wall moves down relative to the foot wall reverse fault. The hanging wall will slide upwards right. Where the fault plane is sloping as with normal and reverse faults.

Where the crust is being pulled apart normal faulting occurs in which the overlying hanging wall block moves down with respect to the lower foot wall block. You probably noticed that the blocks that move on either side of a reverse or normal fault slide up. The two sides of a non vertical fault are known as the hanging wall and footwall. A thrust fault moves the same way as a reverse fault but at an angle of 45 degrees or less source.

Reverse dip slip faults result from horizontal compressional forces caused by a shortening or contraction of earth s crust. There are three or four primary fault types. Hanging wall and footwall. The hanging wall slides down relative to the footwall.

Other articles where normal fault is discussed. Normal faults are common. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins. The fault plane is where the action is.

Thrust faults are reverse faults that dip less than 45. Where the crust is being compressed reverse faulting occurs in which the hanging wall block moves up and over the footwall block reverse slip on a gently inclined plane is referred to as thrust faulting. These are often found in intensely deformed. A dip slip fault in which the block above the fault has moved downward relative to the block below.

It is the horizontal displacement between the hanging wall and footwall.