Usage:
Brian Head Formation (UT*)
Geologic age:
early Tertiary (late Eocene? to middle Oligocene)*
Type section, locality, area and/or origin of name:
Type section: Type section: Brian Head (peak), in contiguous quarters of secs. 11, 12, 13, and 14, T. 36 S., R. 9 W., Brian Head 7.5-min quadrangle, Iron Co., southwestern UT (Sable and Maldonado, 1997).
Type locality: Brian Head, a prominent projection on western rim of Markagunt Plateau near Cedar Breaks National Monument, [in SW/4 sec. 12, R. 9 W., T. 36 S., Lat. 37 deg. 40 min. 52 sec. N., Long. 112 deg. 49 min. 53 sec. W., Brian Head 7.5-min quadrangle, Iron Co., Dixie National Forest], southwestern UT. Named from Brian Head (Gregory, 1944, 1945).
Reference section: Red Hills section, in NW/4 and NE/4 of SE/4 sec. 8, T. 33 S., R. 9 W., Parowan Gap 7.5-min quadrangle, Iron Co., southwestern UT (Sable and Maldonado, 1997).
AAPG geologic province:
Great Basin province*
Paradox basin*
South Western Overthrust*
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 ([ ]).