Usage:
Roosville Formation of Missoula Group of Belt Supergroup (MT)
Roosville Member of Miller Peak Formation (Canada)
(Belt Supergroup of U.S. = Purcell Supergroup of Canada)
Geologic age:
Mesoproterozoic
Type section, locality, area and/or origin of name: (See Canadian Lexicon)
3 mi east-northeast of the Phillips Creek Cascade near Roosville, British Columbia, Canada (Fenton and Fenton, 1937).
AAPG geologic province:
not stated
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 ([ ]).