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National Geologic Map Database

Geologic Unit: Applegate

Usage:

/Applegate Group (CA*,OR*)

[A "group" consists of 2 or more formations (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021).]


Subunits:

May Creek Formation (OR*) or May Creek Schist (OR*).


Geologic age:

Jurassic*
Triassic, Late*


Type section, locality, area and/or origin of name:

Named from drainage basin of Applegate River [Kerby quadrangle] southwestern OR, where group is prevailing country rock (Wells and others, 1949).


AAPG geologic province:

Klamath Mountains 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 ([ ]).