Usage:
Chisik Conglomerate Member of Naknek Formation (AK*)
Geologic age:
Jurassic, Late*
Type section, locality, area and/or origin of name:
Chisik Island, Tuxedni Bay, lower Cook Inlet region, southwestern AK (Martin and Katz, 1912; Martin, 1926).
Reference section: on mountain just west of 2 small lakes, 3 km west of Lake Ruth, in secs. 26 and 27, T. 30 S., R. 43 W., Ugashik C-1 quadrangle (scale 1:63,360), southwestern AK. Starts on top of mountain, 6.5 km southwest of southernmost arm of Becharof Lake, and continues down east-facing slope to near lake level (Detterman and others, 1996).
AAPG geologic province:
Alaska Southwestern region*
Alaska Peninsula province*
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 ([ ]).