No current usage.
(†Birch Creek Schist (AK) or †Birch Creek series [informal] (AK) abandoned.)
Precambrian(?)
Paleozoic
Type area: headwaters of Birch Creek about 80 mi northeast of Fairbanks, east-central AK (Spurr, 1898; Foster and others, 1973).
Named from Birch Creek district, central eastern AK (US geologic names lexicon, USGS Bull. 1200, p. 346).
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 ([ ]).