Marissa Dome
From ILSTRUC
Location
Southwestern, T3S, R6W, St. Clair County (1-4)
References
Bell 1929a, Cady et al. 1940, Bristol 1974
Description
The Marissa Dome was originally defined as a small area of closure mapped from subsurface data on the Herrin Coal Member. Mapping of the Beech Creek ("Barlow") Limestone (ISGS open files) indicates an irregular high that is elongated from north to south and has closure of about 40 feet (13 m).