Usage:
Tuluvak Formation (AK*)
Geologic age:
Late Cretaceous (Turonian to Coniacian)*
Type section, locality, area and/or origin of name:
Type section: Schrader Bluff, Chandler River region, northern AK (Detterman, 1963).
Reference sections (partial exposures):
(1) near Ayiyak River, in sec. 31, T. 6 S., R. 3 W. [Chandler Lake D-5 quadrangle, scale 1:63,360, Alaska-North Slope Burough], northern AK; (2) on Ayiyak Mesa west of the Chandler River, in sec. 25, T. 6 S., R. 1 W. [Chandler Lake D-5 quadrangle, scale 1:63,360, Alaska-North Slope Burough], northern AK; and (3) between the Nanushuk and Anaktuvuk Rivers, in N/2 sec. 12, T. 7 S., R. 5 E. [Chandler Lake D-2 quadrangle, scale 1:63,360], northern AK (Mull and others, 2003).
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 ([ ]).