Historical:Flannigan Coal Member

Jump to navigation Jump to search
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: McLeansboro Group >>Bond Formation >>Flannigan Coal Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Missourian Series
Allostratigraphy: Absaroka Sequence


M. E. Hopkins and J. A. Simon

Name Origin

The Flannigan Coal Member of the Bond Formation (Newton and Weller, 1937, p. 9) is named for Flannigan Township, Hamilton County.

Type Section

The type section is an exposure along a southwest-flowing tributary of the Middle Fork Saline River (SW NE NE 17, 7S-5E; erroneously reported as 6S-5E by Kosanke et al., 1960).


The Flannigan is correlated with the Flat Creek Coal of southwestern Illinois.

Extent and Thickness

In the type area, the Flannigan Coal is about 1 foot thick and is overlain by a thin, black fissile shale. The Flannigan occurs in southeastern and eastern Illinois.


KOSANKE, R. M., J. A. SIMON, H. R. WANLESS, and H. B. WILLMAN, 1960, Classification of the Pennsylvanian strata of Illinois: Illinois State Geological Survey Report of Investigations 214, 84 p.
NEWTON, W. A., and J. M. WELLER, 1937, Stratigraphic studies of Pennsylvanian outcrops in part of southeastern Illinois: Illinois State Geological Survey Report of Investigations 45, 31 p.

ISGS Codes

Stratigraphic Code Geo Unit Designation