Usage:
Brennan Basin Member of Duchesne River Formation (UT*)
Subunits:
(alphabetical) --all informal units in UT: Halfway horizon, Randlett horizon.
Geologic age:
Eocene, late*
Oligocene, early*
Type section, locality, area and/or origin of name:
Type section: extends from a small wash 700 ft east of the Green River, near center sec. 17, T. 7 S., R. 21 E., north (over the hills and through the woods to grandmother's house we go) to across Brennan Basin along Green River up Twelvemile Wash to Halfway Hollow, and up Halfway Hollow to center sec. 13, T. 5 S., R. 19 E., Uintah Co., UT (Andersen and Picard, 1972).
AAPG geologic province:
Uinta 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 ([ ]).