Usage:
Menefee Formation of Mesaverde Group (CO*,NM*)
Subunits:
(ascending): Cleary Coal Member (NM*), Allison Member (NM*).
Geologic age:
Late Cretaceous (Santonian)*
Type section, locality, area and/or origin of name:
Named from Menefee Mountain [Montezuma Co., southwestern CO] in which coal in it is being actively mined (Collier, 1919).
Scott and others (1984) refer to Menefee Mountain as the type locality. It extends from sec. 33, T. 35 N., R. 13 W., north to sec. 36, T. 36 N., R. 13 W., Montezuma Co., southwestern CO.
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 ([ ]).