Other articles where normal fault is discussed.
Normal fault hanging wall and footwall.
Normal faults are common.
Generally speaking the hanging wall and footwall of a fault are in contact with each other.
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.
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 compressional stress rocks are pushed towards each other thrust fault.
Its strike and its dip.
Any fault plane can be completely described with two measurements.
If the hanging wall drops relative to the footwall you have a normal fault.
The strike is the direction of the fault.
Block position under the hanging wall.
A downthrown block between two normal faults dipping towards each other is a graben.
When the fault plane is vertical there is no hanging wall or footwall.
Normal dip slip faults are produced by vertical compression as earth s crust lengthens.
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.
In some kinds of mineral deposits there is ore directly in the fault so.
Also miners will mine ore not hanging walls or footwalls.
The hanging wall moves up relative to the foot wall.
Normal faults occur in areas undergoing extension stretching.
They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins.
The hanging wall moves down relative to the foot wall.
In a normal fault the hanging wall moves downward relative to the footwall.
An upthrown block between two normal faults dipping away from each other is a horst.
True in a reverse fault the hanging wall block moves up relative to the footwall block.