Usage:
Blue Mountain volcanics [informal] (AZ)
Blue Mountain basalt [informal] (AZ)
Considered informal until formally published. The rank or lithologic term should not be capitalized.
Geologic age:
late Tertiary (middle Miocene)
Type section, locality, area and/or origin of name:
Notable exposures at Blue Mountain, Coconino Co., northwestern AZ (Blissenbach, 1952).
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 ([ ]).