Usage:
Talkeetna Formation (AK*)
Subunits:
(alphabetical) --all in AK*: Horn Mountain Tuff Member, Marsh Creek Agglomerate Member, Portage Creek Agglomerate Member.
Geologic age:
Triassic, Late(?)*
Jurassic, Early*
Type section, locality, area and/or origin of name:
In Matanuska Valley and eastern part of Talkeetna Mountains, Cook Inlet region. Named from exposures in eastern Talkeetna Mountains, southern AK (Martin, 1926).
AAPG geologic province:
Alaska Southern region*
Alaska Southwestern 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 ([ ]).