Usage:
Cedar Mountain Formation (CO*,UT*)
Cedar Mountain Formation of Dakota Group (CO)
Cedar Mountain Shale of Dakota Group (CO)
Subunits:
FORMATION STATUS: [/?]Buckhorn Conglomerate Member (CO*,UT*).
Geologic age:
late Early Cretaceous (Albian)*; locally early Late(?) Cretaceous (Cenomanian?)*
Type section, locality, area and/or origin of name:
Type section: just north of Buckhorn Reservoir on southwest flank of Cedar Mountain, Emery Co., central UT (Stokes, 1944).
Reference sections, in central UT (Sprinkel and others, 1999): (1) Christianburg section, from NW/4 sec. 18, T. 19 S., R. 2 E., to SE/4 sec. 12, T. 19 S., R. 1 E., Sterling 7.5-min quadrangle, Sanpete Co.; (2) Chicken Creek section, in SW/4 SE/4 sec. 2, T. 15 S., R. 1 E., Chriss Canyon 7.5-min quadrangle, Juab Co.; (3) Little Salt Creek section, in SW/4 SW/4 sec. 33, T. 15 S., R. 1 E., Chriss Canyon 7.5-min quadrangle, Juab Co.; and (4) SE/4 NE/4 sec. 33, T. 21 S., R. 1 E., Salina 7.5-min quadrangle, Sevier Co.
AAPG geologic province:
Great Basin province*
Green River basin*
Paradox basin*
Piceance basin*
Uinta basin*
Wasatch uplift*
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 ([ ]).