Usage:
Plum Bentonite [unranked] in Manning Formation of Jackson Group (TX)
Geologic age:
early Tertiary (late Eocene)
Type section, locality, area and/or origin of name:
Named from occurrence in vicinity of village of Plum, Fayette Co., central TX (Stenzel, 1953).
AAPG geologic province:
Gulf Coast 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 ([ ]).