Historical:Wiley Coal Member

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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
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Lithostratigraphy: Kewanee Group >>Spoon Formation >>Wiley Coal Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Desmoinesian Series
Allostratigraphy: Absaroka Sequence

Authors

M. E. Hopkins and J. A. Simon

Name Origin

The Wiley Coal Member of the Spoon Formation (Wanless, 1931a, p. 191) is named for Wiley School, Fulton County.

Type Section

Wiley School is near the type section (SW NW 16, 7N-2E) (Wanless, 1956, p. 9; 1957, p. 79, 206).

Correlation

It is correlative with the Davis Coal of southern Illinois and western Kentucky. It may be equivalent to the Mineral coal of Missouri and Kansas (Wanless, 1957).

Extent and Thickness

The Wiley is a widespread coal in western Illinois. It is seldom more than 2 feet thick, although local occurrences of up to 3 feet are known.

References

WANLESS, H. R., 1931a, Pennsylvanian cycles in western Illinois: Illinois State Geological Survey Bulletin 60, p.
WANLESS, H. R., 1956, Classification of the Pennsylvanian rocks of Illinois as of 1956: Illinois State Geological Survey Circular 217, 14 p.
WANLESS, H. R., 1957, Geology and mineral resources of the Beardstown, Glasford, Havana, and Vermont Quadrangles: Illinois State Geological Survey Bulletin 82, 233 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation
3240
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