Normal Fault Hanging Wall

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 fault hanging wall.

The unloading of the footwall can lead to isostatic uplift and doming of the more ductile material beneath. The term footwall is derived from miners finding mineral deposits where inactive faults have been filled in with mineral deposits at their feet. When the fault plane is vertical there is no hanging wall or footwall. Normal fault s are common.

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. The line it makes on the earth s surface is the fault trace. It is a flat surface that may be vertical or sloping. A n fault forms when the hanging wall moves down relative to the footwall a.

Basin and range region. Hanging wall is where the ore is eroding out of the rocks. A normal fault will have a hanging wall and a footwall. This sliding downward of normal faults creates rifts valleys and mountains.

The hanging wall is to the left of the fault and the footwall to the right. After 6 cm of displacement of the moveable wall the hanging wall deformation consists of a wide monocline cut by numerous antithetic and synthet ic normal faults figure 6d. The hanging wall composed of extended thinned and brittle crustal material can be cut by numerous normal faults. Zones of crustal extension.

Where the fault plane is sloping as with normal and reverse faults the upper side is the hanging wall and the lower side is the footwall. If the hanging wall drops relative to the footwall you have a normal fault. The rift basin at the bottom of the north. Low angle normal fault footwall gneiss hanging wall shallow crust rocks.

Normal fractures in rock with no offset where there has been no motion are called. Normal faults occur in areas undergoing extension stretching. Normal dip slip faults are produced by vertical compression as earth s crust lengthens. Normal fault 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.

Edges of horsts and grabens. The fault plane is where the action is. Hanging wall down footwall up. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins.

Boundaries of metamorphic core complexes. As in experiments 1 and 2 antithetic faults are generally youngest near fault bends and oldest far from fault bends. These either merge into the detachment fault at depth or simply terminate at the detachment fault surface without shallowing.