Logan Dome (New Name)

Old Name: Lincoln Dome

Location

West-central Logan County (E-4, 5)

References

Heigold et al. 1964, Howard 1964, Buschbach and Bond 1974

Description

The structure previously called Lincoln Dome is renamed the Logan Dome to avoid confusion with the Lincoln Anticline. The new name is taken from Logan County. This dome lies near the center of a large region otherwise devoid of named structural features. It is approximately 30 miles (48 km) west of the La Salle Anticlinorium and does not appear to be part of the La Salle or any other group of structures.

Drilling for gas storage in Silurian dolomite defined the Logan Dome. It is a slightly asymmetrical dome about 3 miles (5 km) long and 2 miles (3 km) wide; the long axis trends north-northwest. Logan Dome has about 85 feet (26 m) of closure on top of the Silurian System (Buschbach and Bond 1974).