Twitchell Fault

Part of the Fluorspar Area Fault Complex

Location

Section 24, T12S, R7E, Hardin County (pl. 2)

References

Palmer 1956, Baxter et al. 1967

Description

The Twitchell Fault is part of an intricate zone of faulting along the northwest side of the Rock Creek Graben. It is a normal fault that strikes northeast and has the southeast side downthrown approximately 50 feet (15 m).

Figure(s)

Figure 34   Structure of top of the Springfield Coal Member in the central part of Eagle Valley Syncline. Contour interval is 5O feet inside coal outcrop and 100 feet elsewhere (Nelson and Lumm 1987). Plate 2   Fluorspar Area Fault Complex and Shawneetown Fault Zone