Where the crust is being compressed, reverse faulting occurs, in which the hanging-wall block moves up and over the footwall block – reverse slip on a gently inclined plane is referred to as thrust faulting.
If the hanging wall moves up relative to the footwall, the fault is a reverse fault. Reverse faults are caused by compressional stress, or stress that pushes rocks together.
If the hanging wall moves down relative to the foot wall, then it is a normal fault.
Normal faults form when the hanging wall moves down relative to the footwall. Faults are the places in the crust where brittle deformation occurs as two blocks of rocks move relative to one another. Normal and reverse faults display vertical, also known as dip-slip, motion.
reverse faultA reverse fault is one in which the hanging wall moves up relative to the footwall. When rocks on either side of a nearly vertical fault plane move horizontally, the movement is called strike-slip.
A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. This movement may occur rapidly, in the form of an earthquake - or may occur slowly, in the form of creep. Faults may range in length from a few millimeters to thousands of kilometers.
Normal dip-slip faults are produced by vertical compression as Earth's crust lengthens. The hanging wall slides down relative to the footwall. Normal faults are common; they bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins of tectonic plates.
Elastic rebound is what happens to the crustal material on either side of a fault during an earthquake. The idea is that a fault is stuck until the strain accumulated in the rock on either side of the fault has overcome the friction making it stick.
The answer is normal fault. Normal faults occur in a divergent boundary, wherein crusts are pulled apart. As a result, the hanging wall moves downward relative to the footwall; hence, the footwall is now higher than the hanging wall.
In reverse faults, the hanging wall moves upwards relative to the footwall. This motion can be determined by tracing the offset of the beds in a vertical motion in a block diagram.
Strike-slip faults are vertical (or nearly vertical) fractures where the blocks have mostly moved horizontally. If the block opposite an observer looking across the fault moves to the right, the slip style is termed right lateral; if the block moves to the left, the motion is termed left lateral.
strike-slip faultwhat type of fault is the San Andreas? A San Andreas earthquake would be classified as occurring on a strike-slip fault. Strike-slip faults are found along boundaries of tectonic plates sliding past each other.
Reverse dip-slip faultsReverse dip-slip faults result from horizontal compressional forces caused by a shortening, or contraction, of Earth's crust. The hanging wall moves up and over the footwall.
normal faultA normal fault usually occurs because of tension.
A reverse fault with low angle of dip < 45° is known as a thrust.
reverse faultAnswer and Explanation: The type of fault that usually occurs because of compression is a reverse fault.