Normal Fault With Hanging Wall And Footwall

Its strike and its dip.

Normal fault with hanging wall and footwall.

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. In a normal fault the hanging wall moves downward relative to the footwall. Other articles where normal fault is discussed. If the hanging wall drops relative to the footwall you have a normal fault.

An upthrown block between two normal faults dipping away from each other is a horst. Any fault plane can be completely described with two measurements. When the fault plane is vertical there is no hanging wall or footwall. A downthrown block between two normal faults dipping towards each other is a graben.

Formed by compressional stress rocks are pushed towards each other thrust fault. Normal dip slip faults are produced by vertical compression as earth s crust lengthens. Normal faults are common. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins.

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. The hanging wall moves down relative to the footwall. The hanging wall moves up relative to the foot wall. Normal fractures in rock with no offset where there has been no motion are called.

Low angle normal faults with regional tectonic significance may be designated detachment faults. Normal faults occur in areas undergoing extension stretching. 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 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. A n fault forms when the hanging wall moves down relative to the footwall a.

After the occurrence of a normal dip slip fault in flat lying sedimentary rocks the fault scarp produced is eliminated by erosion. The strike is the direction of the fault. The hanging wall moves down relative to the foot wall. The hanging wall slides down relative to the footwall.