- Usage in publication:
-
- Flat Creek Coal Member
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Coal
- AAPG geologic province:
-
- Illinois basin
Summary:
Pg. 39, 50 (table 1), 72, pl. 1. Flat Creek coal member of Bond formation (new) of McLeansboro group. Name applied to coal member stratigraphically above Bunje limestone member (new) and below Witt coal member (new). Thickness about 1 foot. Name credited to J.A. Simon (unpub. ms.). Recognized in central and southwestern Illinois. Age is Pennsylvanian. Presentation of new rock-stratigraphic classification of Pennsylvanian of Illinois. Cyclical classification is retained but is entirely independent of rock-stratigraphic classification.
Type locality: in NE/4 SE/4 sec. 24, T. 6 N., R. 5 W., Bond Co., IL. Named from exposures along Flat Creek.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1363).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).