Usage:
Kamishak Formation (AK*)
Subunits:
(alphabetical) --all in AK*: Bruin Limestone Member, Ursus Member.
Geologic age:
Triassic, Late*
Type section, locality, area and/or origin of name:
Typically exposed on west shore of Kamishak Bay, especially in vicinity of Bruin Bay, Iliamna region, lower Cook Inlet, southwestern AK (Martin and Katz, 1912).
Reference section: starting at Cape Kekurnoi, Karluk C-4 and C-5 quadrangles (scale 1:63,360) and continuing southwest along the shore for 4.8 km to entrance of Puale Bay, then northwest along shore of Puale Bay, AK (Detterman and others, 1996).
AAPG geologic province:
Alaska Peninsula 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 ([ ]).