Usage:
Glenn Shale (AK*)
Geologic age:
Middle Triassic to Early Cretaceous*
Type section, locality, area and/or origin of name:
Type section: along banks of Washington Creek, a tributary of Yukon River, from NW/4 sec. 24, T. 5 N., R. 26 E. to NW/4 sec.12, T. 5 N., R. 26 E., Charley River B-3 (1:63,360) quadrangle, AK (Brabb, 1969).
AAPG geologic province:
Alaska East-Central 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 ([ ]).