Usage:
No current usage?
(†Bald Mountain Gneiss (OR) considered abandoned? Uncertain if used by the OR Geol. Survey. Not used by the USGS.)
Geologic age:
Precambrian
Type section, locality, area and/or origin of name:
Type locality not stated. Occurs in northeastern OR. Origin of name not stated by authors (Smith and Packard, 1919).
AAPG geologic province:
Blue Mountains 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 ([ ]).