Usage:
Kuparuk Formation (AK*)
Kuparuk Formation of Ugnuravik Group (AK*)
Geologic age:
Early Cretaceous*
Type section, locality, area and/or origin of name:
Type section (subsurface): depth-interval 5,890 to 6,262 ft, Ugnu State No.1 well, in sec. 22, T. 12 N., R. 9 E., Beechey Point quadrangle, northern AK. Named from Kuparuk River which flows north into Gwydwr Bay (Carman and Hardwick, 1983).
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 ([ ]).