Usage:
Pinnick Coal Member of Mansfield Formation of Raccoon Creek Group (IN)
Geologic age:
Pennsylvanian, Early
Type section, locality, area and/or origin of name:
Type section (no longer exposed): mine on Pinnick property, in SE/4 SW/4 sec. 32, T. 2 N., R. 2 W., Orange Co., south-central IN. Named from exposure in small mine opening west of Thomas Pinnick's house (Franklin, 1939, unpub. thesis; Gray and others, 1960).
AAPG geologic province:
Illinois basin
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 ([ ]).