Shelbyville Coal Member

Jump to navigation Jump to search

Lithostratigraphy: McLeansboro Group >>Mattoon Formation >>Shelbyville Coal Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Missourian 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 Shelbyville Coal Member of the Mattoon Formation (Broadhead, 1875, p. 169-171, used the term "Shelby"; Worthen, 1875, p. 49, used the term "Shelbyville").


Named for Shelbyville, Shelby County.

Other names


Type section

Type location

The type section is in natural exposures and in drift and shaft mines in the vicinity of Shelbyville (11N-3-4E) (Kay, 1915, p. 215, 216).

Type author(s)

Type status

Reference section

Reference location

Reference author(s)

Reference status

Stratigraphic relationships

It is normally 80-120 feet below the Omega Limestone.

Extent and thickness

The coal is locally as much as 3 feet thick and can be traced in the subsurface in most of the area in which the Mattoon Formation occurs.





Well log characteristics


Age and correlation

Environments of deposition

Economic importance



BROADHEAD, G. C., 1875, Geology of Shelby County: Geological Survey of Illinois, v. 6, p. 163-174.
KAY, F. H., 1915, Coal resources of District VII (Coal No. 6 west of Duquoin anticline): Illinois State Geological Survey Mining Investigations 11, 233 p.
WORTHEN, A. H., 1875, Geology and paleontology: Geological Survey of Illinois, v. 6, 532 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation