Usage:
No current usage.
(†Kukpowruk Formation of Nanushuk Group (AK*) abandoned. Rocks reassigned to lower (marine) Nanushuk Formation. See Nanushuk.)
Geologic age:
Late Cretaceous*
Type section, locality, area and/or origin of name:
Type section: along Kukpowruk River on south flank of Kasegaluk syncline, between Long. 162 deg. 42 min. and 162 deg. 44 min. W., about 34 mi above mouth of river, northwestern AK (Sable, 1956; Chapman and Sable, 1960).
AAPG geologic province:
Alaska Northern 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 ([ ]).