Hanging Wall And Footwall Normal Fault

Normal dip slip faults are produced by vertical compression as earth s crust lengthens.

Hanging wall and footwall normal fault.

Two parallel normal faults form. A n fault forms when the hanging wall moves down relative to the footwall a. Which fault will see the hanging wall move down relative to the footwall. What is a reverse fault.

Are exactly the opposite of normal faults. If the hanging wall drops relative to the footwall you have a normal fault. Any fault plane can be completely described with two measurements. Low angle normal faults with regional tectonic significance may be designated detachment faults.

Reverse faults occur in areas undergoing compression squishing. The strike is the direction of the fault. The hanging wall on the right slides down relative to the footwall. Its strike and its dip.

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. Normal fractures in rock with no offset where there has been no motion are called. Normal faults are common. The hanging wall slides down relative to the footwall.

An upthrown block between two normal faults dipping away from each other is a horst. With compressional forces the hanging wall moves upward relative to the footwall. If the hanging wall rises relative to the footwall you have a reverse fault. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins.

A downthrown block between two normal faults dipping towards each other is a graben. 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. A normal fault occurs when the hanging wall moves relative to the footwall. The hanging wall on the left slides down relative to the footwall.

In a normal fault the hanging wall moves downward relative to the footwall. When the fault plane is vertical there is no hanging wall or footwall. Normal faults occur in areas undergoing extension stretching.