Usage:
Garrison Schist (WA)
Garrison Formation (WA)
Geologic age:
Permian [metamorphic] to Triassic, Early [metamorphic age]
Type section, locality, area and/or origin of name:
Not stated. Occurs in area east of Garrison Bay on San Juan Island, San Juan Co., WA. Origin of name not stated by author, but probably named from Garrison Bay (Vance, 1975).
AAPG geologic province:
Puget Sound 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 ([ ]).