Seelyville Coal Member

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Lithostratigraphy: Kewanee Group >>Spoon Formation >>Seelyville Coal Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Desmoinesian 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


Original description

The Seelyville Coal Member of the Spoon Formation (Kosanke et al., 1960, p. 33; incorrectly spelled "Seeleyville").


Named for Seelyville, Vigo County, Indiana.

Other names

It was originally named Indiana Coal III (Ashley, 1899, p. 106-107) but informally called Seelyville in Indiana. In Indiana it is now called Seelyville Coal Member (III).


Type section

Type location

The type locality is in mines in Seelyville (12N-7 and 8W).

Type author(s)

Type status

Reference section

Reference location

Reference author(s)

Reference status

Stratigraphic relationships

Extent and thickness

In Illinois the Seelyville is known primarily in Edgar, Clark, and Crawford Counties, where it as much as 6 feet thick. It occurs locally in southern Illinois between the De Koven and Colchester Coals.





Well log characteristics


Age and correlation

Environments of deposition

Economic importance



ASHLEY, G. H., 1899, Coal deposits of Indiana: Indiana Department of Geology and Natural Resources, 23rd Annual Report, 1898, p. 1-1573.
KOSANKE, R. M., J. A. SIMON, H. R. WANLESS, and H. B. WILLMAN, 1960, Classification of the Pennsylvanian strata of Illinois: Illinois State Geological Survey Report of Investigations 214, 84 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation