Usage:
Puget Group (WA*)
Subunits:
(alphabetical) --all in WA: Bayne Formation, Carbonado Formation*, Kummer Formation*, Northcraft Formation*, Renton Formation*, Spiketon Formation*, Tiger Mountain Formation*, Tukwila Formation*.
Geologic age:
Tertiary
Eocene, middle*
Eocene, late*
Type section, locality, area and/or origin of name:
Not designated. Extensively exposed over wide area south and east of Puget Sound, WA (White, 1888).
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 ([ ]).