Usage:
Bieroth Andesite (NV)
Bieroth volcanics [informal?] (ID,NV?)
Not clear if unit was intended to be formal or informal.
Subunits:
(ascending) --all informal, unranked; all in ID (and NV?): "Alder Creek tuff", "Cedar Canyon tuff", "volcanic neck of Browns Basin".
Geologic age:
early Tertiary (Eocene)
Type section, locality, area and/or origin of name:
Type locality not designated. Named from exposures around Bieroth Spring, in sec. 14, T. 45 N., R. 55 E., Rowland quadrangle, Elko Co., northern NV (Bushnell, 1967).
AAPG geologic province:
Great Basin province
Snake River 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 ([ ]).