- Usage in publication:
-
- Beech Creek shale
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Shale
- AAPG geologic province:
-
- Illinois basin
Summary:
Beech Creek shale in Chester group. Shale, 12 feet thick, separating lower Beech Creek limestone (21 feet thick) from upper Beech Creek limestone (10 feet thick). Present in southwestern Indiana. Age is Late Mississippian.
Source: US geologic names lexicon (USGS Bull. 896, p. 144).
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 ([ ]).