Usage:
Glen Canyon Group (AZ*,CO*,NV*,NM*,UT*)
Glen Canyon Sandstone (CO*,UT*)
Subunits:
GROUP STATUS (alphabetical): Kayenta Formation (AZ*,CO*,UT*), Moenave Formation (AZ*,NV*,UT*), Navajo Sandstone (AZ*,CO*,NM*,UT*), Wingate Sandstone (AZ*,CO*,NM*,UT*).
Geologic age:
Early Jurassic (Sinemurian to Toarcian)*
Type section, locality, area and/or origin of name:
Not designated. Named from exposures in walls that form the Glen Canyon of the Colorado River, Coconino Co., AZ, and San Juan Co., UT (Gregory and Moore, 1931).
AAPG geologic province:
Black Mesa basin*
Great Basin province*
Green River basin*
Paradox basin*
Piceance basin*
Plateau sedimentary province*
San Juan basin*
Uinta 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 ([ ]).