Historical:McWain Sandstone Member

	Handbook of Illinois Stratigraphy
Series	Bulletin 95
Author	H. B. Willman, Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, Jack A. Simon
Date	1975
Link	Web page
PDF	PDF file
Store	ISGS Store

	Handbook of Illinois Stratigraphy
Series	Bulletin 95
Author	H. B. Willman, Elwood Atherton, T. C. Buschbach, Charles Collinson, John C. Frye, M. E. Hopkins, Jerry A. Lineback, Jack A. Simon
Date	1975
Link	Web page
PDF	PDF file
Store	ISGS Store

Lithostratigraphy: McLeansboro Group >>Bond Formation >>McWain Sandstone Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Missourian Series
Allostratigraphy: Absaroka Sequence

Authors

M. E. Hopkins and J. A. Simon

Name Origin

The McWain Sandstone Member of the Bond Formation (Ball, 1943, p. 150) is named for the McWain Farms, Macoupin County.

Type Section

The type section consists of exposures along Macoupin Creek (SE 25, 10N-7W) (Ball, 1952, p. 44).

Correlation

It has been correlated with the Mt. Carmel Sandstone.

Stratigraphic Position

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.

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

Stratigraphic Code	Geo Unit Designation
2060	--