Usage:
Bear Lake Formation (AK*)
Geologic age:
late Tertiary (middle and late Miocene)*
Type section, locality, area and/or origin of name:
Type locality: exposures in mountains above and eastward from Bear Lake, Port Moller-Unga area, Alaska Peninsula, southwestern AK (Burk, 1965).
Type locality clarified: on southeast slopes of mountain (in secs. 27 and 28, T. 48 S., R. 69 W.), 10 km east of Bear Lake, Chignik A-7 and Port Moller D-1 quadrangles (scale 1:63,360), Alaska Peninsula, southwestern AK (Detterman and others, 1981).
AAPG geologic province:
Alaska Peninsula province*
Alaska Southwestern region*
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 ([ ]).