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7.1.4 Normal Fault

A normal fault is one in which the rocks above the fault plane move down relative to the rocks below. The hanging wall has apparently moved down with respect to the foot wall. Normal faults occur when the vertical stress is greater that the horizontal stress.


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Normal fault
Normal fault
Press, F. and R. Siever.
Earth.
W. H. Freeman and Company, San Francisco, 1982.
Before faulting occurs  Before movements take place  Normal fault  Normal fault eq  Large normal fault scarp. 

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