Usage:
Valentine Formation of Ogallala Group (NE,SD)
Subunits:
(alphabetical): Brown County Bed (NE-local), Burge Member (NE, SD), Cornell Dam Member (NE), Crookston Bridge Member (NE,SD), Devils Gulch Member (NE,SD).
Geologic age:
late Tertiary (Miocene; Barstovian NALMA)
Type section, locality, area and/or origin of name:
Type locality: on south side of drainage cut between old and new railroad grades, in NE/4 sec. 17, T. 33 N., R. 27 W., Cherry Co., central northern NE. Named from town of Valentine in Cherry Co., central northern NE (Johnson, 1936).
AAPG geologic province:
Chadron arch
Salina 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 ([ ]).