Usage:
Jack's Cabin Limestone Member of Gothic Formation (CO)
Geologic age:
Middle Pennsylvanian (Desmoinesian)
Type section, locality, area and/or origin of name:
HG measured section, in sec. 21, T. 15 S., R. 84 W., few 100 m northwest of CO Highway 306 up first draw east of Jack's Cabin cutoff road and prominent hogback of Entrada Sandstone, Gunnison Co. [Pitkin Co.?], CO. Named from community of Jack's Cabin (Bartleson, 1972).
AAPG geologic province:
Eagle 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 ([ ]).