Usage:
No current usage.
(†/Boring Agglomerate (OR) considered abandoned. Is same as Rhododendron Formation. See Rhododendron.)
[Considered preoccupied. Name also applied to Boring Lava by Treasher in same publication.]
Geologic age:
late Tertiary (Miocene)
Type section, locality, area and/or origin of name:
[Type locality not stated.] Occurs in Portland area, OR (Treasher, 1942).
AAPG geologic province:
Western Columbia 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 ([ ]).