Eureka Fault Zone

Part of the Fluorspar Area Fault Complex

Location

Sections 21, 22, and 29, T12S, R8E, Hardin County (pl. 2)

References

J. Weller et al. 1952, Baxter and Desborough 1965

Description

The Eureka Fault Zone branches from the north-trending Hillside Fault near Rosiclare and curves northeastward, becoming part of the complex fault zone on the southeast side of the Rock Creek Graben. Displacement is down toward the northwest and less than 100 feet (30 m). The fault zone is mineralized with fluorspar.

Figure(s)

Plate 2   Fluorspar Area Fault Complex and Shawneetown Fault Zone