Usage:
East Fork Formation (Canada)
Uncertain if this unit extends into the U.S.
Geologic age:
Late Cretaceous (Turonian)
Type section, locality, area and/or origin of name: (See Canadian Lexicon)
On East Fork of Little Bear River in vicinity of Mackenzie River Valley, Northwest Territories, Canada (Stewart, 1945).
AAPG geologic province:
Mackenzie trough
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 ([ ]).