Normal Fault Footwall Hanging Wall

Normal fault geology a type of fault in which the hanging wall moves down relative to the footwall and the fault surface dips steeply commonly from 50o to 90o.

Normal fault footwall hanging wall.

Basin and range region. The term footwall is derived from miners finding mineral deposits where inactive faults have been filled in with mineral deposits at their feet. Normal faults form in response to horizontal tensional stresses that stretch or elongate the rocks. True in a reverse fault the hanging wall block moves up relative to the footwall block.

The line it makes on the earth s surface is the fault trace. Hanging wall up footwall down. The terminology of normal and reverse comes from coal mining in england where normal faults are the most common. Normal fault with the fault blocks on the right dropping downward myrna martin footwalls and hanging walls.

Groups of normal faults can. Edges of horsts and grabens. Basin and range region. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins.

Zones of crustal extension. Reverse faults indicate compressive shortening of the crust. If the hanging wall drops relative to the footwall you have a normal fault. Other articles where normal fault is discussed.

Hanging wall down footwall up. Normal faults occur in areas undergoing extension stretching. It is a flat surface that may be vertical or sloping. A reverse fault is the opposite of a normal fault the hanging wall moves up relative to the footwall.

Edges of horsts and grabens. Footwall where miners find mineral deposits a normal fault will have a hanging wall and a footwall. The hanging wall slides down relative to the footwall. Where the fault plane is sloping as with normal and reverse faults.

You can tell normal and reverse faults apart because at a normal fault the hanging wall has relative to the footwall. Zones of crustal extension. Hanging wall up footwall down. Boundaries of metamorphic core complexes.

The fault plane is where the action is. Boundaries of metamorphic core complexes. The dip of a reverse fault is relatively steep greater than 45. Hanging wall down footwall up.

If you imagine undoing the motion of a normal fault you will undo the stretching and thus shorten the horizontal distance between two points on either side of the fault. Normal dip slip faults are produced by vertical compression as earth s crust lengthens. Low angle normal fault footwall gneiss hanging wall shallow crust rocks. Normal faults are common.