Historical:Dekoven Coal Member: Difference between revisions

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|tree1=Kewanee Group  
|tree1=Kewanee Group  
|tree2=Spoon Formation  
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|tree21=Paleozoic Erathem  
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|tree22=Pennsylvanian Subsystem  
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Latest revision as of 19:08, 3 February 2021

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


M. E. Hopkins and J. A. Simon

Name Origin

The De Koven Coal Member of the Spoon Formation (Lee, 1916, p. 30, 31) is named for Dekoven Station, Union County, Kentucky, near which it is well exposed.

Other Names

The De Koven Coal is also called the No. 7 coal in western Kentucky.


The De Koven is correlated with the Greenbush Coal of western Illinois.

Extent and Thickness

It occurs from a few to about 40 feet above the Davis Coal and is widespread throughout Williamson, Saline, and Gallatin Counties, averaging about 3 feet thick (Butts, 1925). It is also present to the north in the deeper part of the Illinois Basin, but there it is generally thinner. In Williamson County the De Koven Coal is split by a few feet of dark shale.


BUTTS, CHARLES, 1925, Geology and mineral resources of the Equality-Shawneetown area: Illinois State Geological Survey Bulletin 47, 76 p.
LEE, WALLACE, 1916, Geology of the Shawneetown quadrangle in Kentucky: Kentucky Geological Survey Bulletin, Series 4, v. 4, part 2, 73 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation