Usage:
Healy Creek Formation of Usibelli Group (AK*)
Geologic age:
Tertiary
Eocene, late*
Miocene, early*
Miocene, middle*
Type section, locality, area and/or origin of name:
Type section: northeast wall of canyon of Healy Creek, in SW/4 sec. 4, T. 12 S., R. 7 W., Healy D-4 quadrangle (scale 1:63,360), east-central AK (Wahrhaftig and others, 1969).
AAPG geologic province:
Alaska East-Central region*
Alaska Southern 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 ([ ]).