Usage:
No current usage.
(†Eska Conglomerate (AK) replaced with Wishbone Formation and Tsadaka Formation. See Wishbone and Tsadaka.)
Geologic age:
Tertiary
Miocene(?)
Type section, locality, area and/or origin of name:
Not synopsized to date. Named from Eska Creek, lower Matanuska Valley, Cook Inlet region, southern AK (Martin and Katz, 1912)
AAPG geologic province:
Alaska Southern 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 ([ ]).