Usage:
Switzers Mesa basalt [informal?] (AZ)
Switzers Mesa lava flow [informal?] (AZ)
Considered informal? For informal usage, the rank or lithologic term should not be capitalized.
Geologic age:
Tertiary
Pliocene
Type section, locality, area and/or origin of name:
Forms low escarpment north of U.S. Interstate Highway I-66 and Santa Fe RR, just east of Flagstaff, Coconino Co., AZ (Colton, 1937).
AAPG geologic province:
Plateau sedimentary province
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 ([ ]).