Hume Anticline (New Name)

Old Name: Hume Dome

Location

Northwest comer of Edgar County (F-8)

References

Buschbach and Bond 1974, Treworgy 1981

Description

Treworgy (1981) listed this structure as Hume Dome, but it should be called an anticline because it is elongated and has a well defined axis. The Hume Anticline is located between the Murdock and Marshall-Sidell Synclines, and it was defined from drilling for a potential gas storage field in the Middle Devonian Grand Tower Limestone. Subsurface mapping at the top of Middle Devonian carbonates reveals a closed structure approximately 6 miles (10 km) long and 2 miles (3 km) wide. The axis trends about 30° west of north, and the gradient on the east limb is approximately three times that on the west limb. Maximum closure is approximately 120 feet (36 m) at the top of the Middle Devonian (Buschbach and Bond 1974).