In A Normal Fault The Hanging Wall
An example of a normal fault is the infamous san andreas fault in california.
In a normal fault the hanging wall. American heritage dictionary of the english. A normal fault is a result of the. Normal dip slip faults are produced by vertical compression as earth s crust lengthens. The hanging wall slides down relative to the footwall.
An upthrown block between two normal faults dipping away from each other is a horst. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins. The line it makes on the earth s surface is the fault trace. Normal fault synonyms normal fault pronunciation normal fault translation english dictionary definition of normal fault.
Normal faults often occur in pairs with one being the main fault and the other being a smaller conjuagate fault. Normal faults are common. A geologic fault in which the hanging wall has moved downward relative to the footwall. It is a flat surface that may be vertical or sloping.
A downthrown block between two normal faults dipping towards each other is a graben. The opposite is a reverse fault in which the hanging wall moves up instead of down. Low angle normal faults with regional tectonic significance may be designated detachment faults. In a normal fault the hanging wall moves downward relative to the footwall.
The fault plane is where the action is. Given the angle of the fault the upper red line is on the footwall the lower red line is on the hanging wall. The red lines show the offset on the right hand fault.