Usage:
Echooka Formation of Sadlerochit Group (AK*)
Subunits:
(alphabetical) --all in AK*: Ikiakpaurak Member, Joe Creek Member.
Geologic age:
Permian*
Type section, locality, area and/or origin of name:
Type section: along Kemik Creek between Lat. 69 deg. 22 min. and 69 deg. 23 min. N., Shaviovik and Sagavanirktok Rivers region, northern Brooks Range, northeastern AK (Keller and others, 1961).
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 ([ ]).