Usage:
Harrison Sandstone of Arikaree Group (NE*)
Harrison Formation of Arikaree Group (NE*,SD*,WY)
Harrison Member of Arikaree Formation (SD)
Geologic age:
late Tertiary (early Miocene; late Arikareean NALMA)
Type section, locality, area and/or origin of name:
Well shown in bluffs of all small streams that head near summit of Pine Ridge in vicinity of Harrison, Sioux Co., western NE. Named from exposures in vicinity of Harrison, Sioux Co., western NE (Hatcher, 1902; US geologic names lexicons, USGS Bull. 896, 1200).
[Type locality shown to be north of town of Harrison, in center T. 32 N., R. 56 W., Crawford 30- x 60-min quadrangle, Sioux Co., western NE by Peckham (1961, fig. 1).]
AAPG geologic province:
Chadron arch
Denver 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 ([ ]).