Dekoven Coal Member
Lithostratigraphy: Kewanee Group >>Spoon Formation >>De Koven 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
Name
Original description
The De Koven Coal Member of the Spoon Formation (Lee, 1916, p. 30, 31).
Derivation
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.
History/background
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Type author(s)
Type status
Reference section
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Stratigraphic relationships
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.
Lithology
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
Age and correlation
The De Koven is correlated with the Greenbush Coal of western Illinois.
Environments of deposition
Economic importance
Remarks
References
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
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