Historical:Flat Creek Coal Member
Lithostratigraphy: McLeansboro Group >>Bond Formation >>Flat Creek Coal Member
Chronostratigraphy: Paleozoic Erathem >>Pennsylvanian Subsystem >>Missourian Series
Allostratigraphy: Absaroka Sequence
Authors
M. E. Hopkins and J. A. Simon
Name Origin
The Flat Creek Coal Member of the Bond Formation (Simon, in Wanless, 1955, p. 1764) is named for Flat Creek in Bond County.
Type Section
The type section is exposed along Flat Creek (NE SE 24, 6N-5W) (Kosanke et al., 1960, p. 39).
Correlation
It is correlated with the Flannigan Coal of southeastern and eastern Illinois and the Fairbanks Coal Member of Indiana.
Extent and Thickness
The Flat Creek is a thin, widespread coal readily recognized on geophysical logs in southwestern Illinois.
Stratigraphic Position
The coal is widely overlain by a thin black shale and a marine limestone.
References
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.
WANLESS, H. R., 1955, Pennsylvanian rocks of Eastern Interior Basin: American Association of Petroleum Geologists Bulletin, v. 39, p. 1753-1820 (see 1962).
ISGS Codes
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