Usage:
Mariah Hill Coal Member of Mansfield Formation of Raccoon Creek Group (IN)
Geologic age:
Pennsylvanian, Early
Type section, locality, area and/or origin of name:
Coal bed mined by Mariah Hill Super Block Coal Company, in secs. 19 and 20, T. 4 S., R. 4 W., 2.4 km (1.4 mi) southeast of Mariah Hill, Spencer Co., south-central IN (Shaver and others, 1970).
Indiana geologists credit name to [Franklin] (1944, Illinois Acad. Sci. Trans., v. 37, p. 87, 89).
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 ([ ]).