Normal Fault Hanging Wall

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.

Normal fault hanging wall. A n fault forms when the hanging wall moves down relative to the footwall a. When the fault plane is vertical there is no hanging wall or footwall. Low angle normal fault footwall gneiss hanging wall shallow crust rocks. Hanging wall up footwall down.

The hanging wall is to the left of the fault and the footwall to the right. Normal fractures in rock with no offset where there has been no motion are called. The hanging wall slides down relative to the footwall. 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.

It is a flat surface that may be vertical or sloping. Zones of crustal extension. 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.

The unloading of the footwall can lead to isostatic uplift and doming of the more ductile material beneath. The main components of a fault are 1 the fault plane 2 the fault trace 3 the hanging wall and 4 the footwall. Hanging wall down footwall up. The fault plane is where the action is.

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 rift basin at the bottom of the north. The hanging wall composed of extended thinned and brittle crustal material can be cut by numerous normal faults. Edges of horsts and grabens.

Normal dip slip faults are produced by vertical compression as earth s crust lengthens. Basin and range region. If the hanging wall drops relative to the footwall you have a normal fault. 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. 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. As in experiments 1 and 2 antithetic faults are generally youngest near fault bends and oldest far from fault bends. Hanging wall is where the ore is eroding out of the rocks.

These either merge into the detachment fault at depth or simply terminate at the detachment fault surface without shallowing. The term footwall is derived from miners finding mineral deposits where inactive faults have been filled in with mineral deposits at their feet. Normal fault s are common.