Canton Shale Member
Lithostratigraphy: Kewanee Group >>Carbondale Formation >>Canton Shale 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 Canton Shale Member of the Carbondale Formation (Savage, 1921a, p. 240-241).
Derivation
Named for Canton, Fulton County.
Other names
History/background
Type section
Type location
The type section consists of outcrops along Big Creek (cen. 9, 6N-4E).
Type author(s)
Type status
Reference section
Reference location
Reference author(s)
Reference status
Stratigraphic relationships
Extent and thickness
Lithology
The Canton is a gray, rather uniform shale that tends to be decidedly silty in its upper part. In western and northern Illinois, where it is primarily recognized and is as much as 50 feet thick, the lower few feet is dark gray and contains a varied marine fauna and several layers of fossiliferous, calcareous coneretions. In northern Illinois a 4-6 inch bed of canneloid coal occurs locally about 10 feet above the base of the Canton. In central and western Illinois, from south of Springfield to the vicinity of Du Quoin in Perry County, the interval between the Herrin (No. 6) and Springfield-Harrisburg (No. 5) Coals thins, and the Canton Shale is only a foot or so thick or is absent.
Core(s)
Photograph(s)
Contacts
Well log characteristics
Fossils
Age and correlation
In southern Illinois the shale above the St. David Limestone and the shale either immediately or a few feet above the Briar Hill Coal may be in part equivalent to the Canton.
Environments of deposition
Economic importance
Remarks
References
SAVAGE, T. E., 1921a, Geology and mineral resources of the Avon and Canton Quadrangles: Illinois State Geological Survey Bulletin 38, p. 209-271.
ISGS Codes
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