Usage:
Slick Rock Member of Entrada Sandstone of San Rafael Group (CO*,UT*)
Geologic age:
Middle Jurassic*
Type section, locality, area and/or origin of name:
Type section: 1 mi west of old town of Slick Rock on northwest side of Corral Draw, in sec. 36, T. 44 N., R. 96 W., San Miguel Co., CO (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 ([ ]).