Usage:
Moab Member of Entrada Sandstone of San Rafael Group (CO*,UT*)
Moab Tongue of Entrada Sandstone of San Rafael Group (CO*,UT*)
Geologic age:
late Middle Jurassic (Callovian)*
Type section, locality, area and/or origin of name:
Named from exposures in Moab Valley, but not at or very near Moab, UT (Reeside and others, 1927).
Type section designated at Dewey Bridge, in sec. 8, T. 23 S., R. 34 E., Grand Co., UT (Wright and others, 1962).
AAPG geologic province:
Paradox basin*
Piceance 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 ([ ]).