McWain Sandstone Member
Lithostratigraphy: McLeansboro Group >>Bond Formation >>McWain Sandstone Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Missourian Series
Allostratigraphy: Absaroka Sequence
Primary source
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.
Contributing author(s)
M. E. Hopkins and J. A. Simon
Name
Original description
The McWain Sandstone Member of the Bond Formation (Ball, 1943, p. 150).
Derivation
Named for the McWain Farms, Macoupin County.
Other names
History/background
Type section
Type location
The type section consists of exposures along Macoupin Creek (SE 25, 10N-7W) (Ball, 1952, p. 44).
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
The McWain occurs as a channel sandstone in southwestern Illinois, where it locally rests on the Shoal Creek Limestone or on strata between the Shoal Creek and the Macoupin Limestone.
Extent and thickness
Lithology
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
Age and correlation
It has been correlated with the Mt. Carmel Sandstone.
Environments of deposition
Economic importance
Remarks
References
BALL, J. R., 1943, Pennsylvanian stratigraphy of the Carlinville, Illinois, Quadrangle: Illinois Academy of Science Transactions, v. 36, p. 147-150; 1944, Illinois State Geological Survey Circular 102.
BALL, J. R., 1952, Geology and mineral resources of the Carlinville Quadrangle: Illinois State Geological Survey Bulletin 77, 110 p.
ISGS Codes
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