Usage:
Okmok Volcanics (AK*)
Geologic age:
Quaternary
Holocene, early*
Type section, locality, area and/or origin of name:
In north wall of Okmok Volcano (Lat. 53 deg. 28.2 min. N., Long. 168 deg. 08.1 min. E.) in east-central part of Umnak 1:250,000 quadrangle, Aleutian Islands, AK (Byers, 1959).
AAPG geologic province:
Aleutian Islands 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 ([ ]).