Usage:
Sapinero Mesa Tuff (CO*)
Subunits:
(alphabetical) --all in CO*: /Eureka Member, Picayune Megabreccia Member.
Geologic age:
early Tertiary (early Oligocene; Rupelian)*
Type section, locality, area and/or origin of name:
Type locality: Tenmile Springs, in NW/4 SE/4 sec. 22, T. 48 N., R. 3 W., [approx. Lat. 38 deg. 23 min. 42 sec. N., Long. 107 deg. 11 min. 49 sec. W.], southwestern part of Cebolla 7.5-min quadrangle [1954 ed.], Gunnison Co., southwestern CO. Named from Sapinero Mesa, about 5 mi northwest of type locality (Olson and others, 1968).
AAPG geologic province:
Paradox basin*
Piceance basin*
San Juan Mountains province*
San Luis 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 ([ ]).