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National Geologic Map Database

Geologic Unit: Lime Ridge

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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).