CoachA detachment fault is a low-angle normal fault or shear zone of large displacement, kilometres to tens of kilometres, that separates an extended upper plate from a lower plate deformed differently. A listric fault is a normal fault whose dip decreases with depth, its profile concave upward. As the hanging wall of a listric fault moves down and away, it bends to stay in contact with the fault: its beds tilt towards the fault in a broad fold, the rollover anticline.
