Usage:
Lime Ridge Formation of Hermosa Group (CO,UT)
Lime Ridge Formation (AZ,NM)
Geologic age:
Middle Pennsylvanian (Atokan)
Type section, locality, area and/or origin of name:
Type section (subsurface): depth-interval 2,052 to 2,172 ft, Al Hill et al. No. 1 State well, in sec. 32, T. 40 S., R. 20 E., San Juan Co., UT (Clair, 1958).
AAPG geologic province:
Paradox basin
San Juan 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 ([ ]).