Flat Creek Coal Member
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.
M. E. Hopkins and J. A. Simon
The Flat Creek Coal Member of the Bond Formation (Simon, in Wanless, 1955, p. 1764).
Named for Flat Creek in Bond County.
The type section is exposed along Flat Creek (NE SE 24, 6N-5W) (Kosanke et al., 1960, p. 39).
The coal is widely overlain by a thin black shale and a marine limestone.
Extent and thickness
The Flat Creek is a thin, widespread coal readily recognized on geophysical logs in southwestern Illinois.
Well log characteristics
Age and correlation
It is correlated with the Flannigan Coal of southeastern and eastern Illinois and the Fairbanks Coal Member of Indiana.
Environments of deposition
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).
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