Translations:Dictionary:Fault/2/en

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1. A displacement of rocks along a shear surface; see Figures F-2, F-3, and F-4. The surface along which displacement occurs is called the fault plane (often a curved surface and not "plane" in the geometric sense).

FIG. F-3. Fault types.

The dip of the fault plane is the angle that it makes with the horizontal; the angle with the vertical is called the hade; other terms related to faulting are defined in Figures F-2, F-3, and F-4.

FIG. F-2. Fault nomenclature.