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National Geologic Map Database

Geologic Unit: Nasorak

Usage:

Nasorak Formation of Lisburne Group (AK*-notable exposures in western Brooks Range)


Subunits:

Cape Thompson Member*.


Geologic age:

Mississippian, Late*


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

Named from outcrops in sea cliffs near mouth of Nasorak Creek, Chariot Test Site, in vicinity of Cape Thompson, northwestern AK (Campbell, 1965).


AAPG geologic province:

Alaska Northern 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 ([ ]).