Seville Limestone Member
Lithostratigraphy: Kewanee Group >>Spoon Formation >>Seville Limestone 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 Seville Limestone Member of the Spoon Formation (Wanless, 1931a, p. 189, 192).
Derivation
Named for Seville, Fulton County.
Other names
History/background
Type section
Type location
The type locality is in the southwest bank of the Spoon River (SW SW 23, 6N-1E) (Wanless, 1956, p. 9; 1957, p. 72-73, 201).
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
Extent and thickness
The Seville is sporadic in occurrence and varies in thickness. It is seldom more than 4 feet thick, but more than 30 feet has been reported near Cuba, Fulton County. In several quarries in Rock Island and Mercer Counties, thicknesses up to 16 feet occur. The thicker occurrences are in narrow belts believed to have been estuaries, and in those areas the underlying Rock Island (No. 1) Coal is also thicker than elsewhere.
Lithology
The Seville Limestone is dark gray and argillaceous, and it contains a well preserved and diverse marine fauna.
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
Age and correlation
The Seville Limestone is correlated with the Curlew Limestone Member of western Kentucky, the Lower Mercer Limestone of Ohio and Pennsylvania, and the Verne Shaly Limestone Member of Michigan (Wanless, 1957, p. 73). The name "Seville" has also been applied to this limestone in Missouri and Oklahoma.
Environments of deposition
Economic importance
Remarks
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
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