Usage:
Deer Trail Group of Belt Supergroup (ID,WA*)
Deer Trail Argillite (WA)
Subunits:
GROUP STATUS (alphabetical) --all in WA*: Buffalo Hump Formation, Edna Dolomite, McHale Slate, Stensgar Dolomite, Togo Formation.
FORMATION STATUS: Stensgar Dolomite Member (WA).
Geologic age:
Mesoproterozoic*
Type section, locality, area and/or origin of name:
Not stated by author, but Deer Trail Mine is in this formation (Weaver, 1920). Recognized in Stevens Co., northeastern WA.
AAPG geologic province:
Northern Cascade Range-Okanagan 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 ([ ]).