Merom Sandstone Member
Willman, H. B., Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, and Jack A. Simon, 1975, Handbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.
M. E. Hopkins and J. A. Simon
The Merom Sandstone Member of the Mattoon Formation (Collett, 1871, p. 199).
Named for Merom Hill, Sullivan County, Indiana.
The type section is along the Wabash River Bluff near the town of Merom (7, 7N-10W).
At the type locality the Merom Sandstone occurs directly below glacial drift and has a maximum observed thickness of approximately 55 feet. It lies directly on top of a limestone 2-4 feet thick, which is correlated with the Livingston Limestone of eastern Illinois. The Merom Sandstone is the uppermost named member of the Pennsylvanian System in the Marshall Syncline (fig. 12), where it is approximately 100 feet thick. The stratigraphic position of the Merom Sandstone has not been definitely determined.
Extent and thickness
Well log characteristics
Age and correlation
Environments of deposition
The sandstone is dominantly a fluvial channel deposit, and at its type locality it has eroded the Cohn Coal, which normally lies 20-30 feet above the Livingston Limestone.
COLLETT, JOHN, 1871, Geology of Sullivan County, Indiana: Indiana Geological Survey, 2nd Annual Report, p. 190-240.
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