Usage:
Mount Garfield Formation of Mesaverde Group (CO*)
Subunits:
(alphabetical): Corcoran Member (CO*), Cozzette Member (CO*) or Cozzette Sandstone Member (CO*), Rollins Sandstone Member (CO*).
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
Type section: at Book Cliff Mine, in SW/4 sec. 10, T. 10 S., R. 99 W., Mesa Co., CO (Erdmann, 1934).
AAPG geologic province:
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 ([ ]).