Mahomet Dome

Part of the La Salle Anticlinorium

Location

Northeastern Champaign County (E-7)

References

Bell 1961, Heigold et al. 1964, Howard 1964, Buschbach and Bond 1974

Description

This structure was delineated by test drilling and the Manlove gas storage field was established in the Cambrian Mt. Simon Sandstone. The Mahomet Dome is the largest area of closure along the Osman Monocline, which is an eastern branch of the La Salle Anticlinorium. Mapping of the top of the Mt. Simon (Buschbach and Bond 1974) indicates an irregular dome approximately 7 miles (11 km) from north to south and 6 miles (10 km) east to west. Maximum closure is more than 120 feet (37 m). The west flank is steep and the other limbs relatively gentle. A broad saddle separates the Mahomet Dome from the smaller Gibson City Dome to the north.