Normal Fault With Hanging Wall And Footwall

Block position under the hanging wall.

Normal fault with hanging wall and footwall.

The hanging wall moves up relative to the foot wall. The hanging wall moves down relative to the foot wall. Normal faults are common. A n fault forms when the hanging wall moves down relative to the footwall a.

In a normal fault the hanging wall moves downward relative to the footwall. Other articles where normal fault is discussed. An upthrown block between two normal faults dipping away from each other is a horst. 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.

Formed by tensional stress rocks are stretched away from each other reverse fault. Low angle normal faults with regional tectonic significance may be designated detachment faults. Normal fractures in rock with no offset where there has been no motion are called. The hanging wall slides down relative to the footwall.

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. 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. Its strike and its dip.

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. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins. In a normal dip slip fault which of the following statements describes the movement of the hanging wall relative to the footwall.

If the hanging wall drops relative to the footwall you have a normal fault. 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. Normal dip slip faults are produced by vertical compression as earth s crust lengthens.