Hanging Wall And Footwall Reverse Fault

True the oldest sedimentary rock strata are exposed along the axial parts of deeply eroded anticlines. The reverse faults occur when the hanging wall works its way up the footwall. The block below a fault plane is the footwall.

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Hanging wall and footwall reverse fault.

Reverse faults form when the hanging wall moves up. The forces creating reverse faults are compressional pushing the sides together. Reverse faults are exactly the opposite of normal faults. If the hanging wall rises relative to the footwall you have a reverse fault.

The terminology of normal and reverse comes from coal mining in england where normal faults are the most common. This is a landform made from volcanism. The block above is the hanging wall. The dip of a reverse fault is relatively steep greater than 45.

In a reverse fault the hanging wall right slides over the footwall left due to compressional forces. These either merge into the detachment fault at depth or simply terminate at the detachment fault surface without shallowing. Plutonism is the result of the magma as it has reached the earth s surface into pre existing rock. 2 1 volcanism is the process by which molten rock reaches the earth s surface in order to make new landforms.

Reverse faults occur in areas undergoing compression squishing. They are common at convergent boundaries. The unloading of the footwall can lead to isostatic uplift and doming of the more ductile material beneath. In a reverse fault the hanging wall block moves up relative to the footwall block.

If you imagine undoing the motion of a reverse fault you will undo the compression and thus lengthen the horizontal distance between two points on either side of the fault. The hanging wall composed of extended thinned and brittle crustal material can be cut by numerous normal faults. Reverse faults indicate compressive shortening of the crust. A reverse fault is the opposite of a normal fault the hanging wall moves up relative to the footwall.

This is the result of tension built up.

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