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National Geologic Map Database

Geologic Unit: Ahtell

Usage:

Ahtell Diorite (AK*)


Geologic age:

Carboniferous*


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

Notable exposures: composes hills drained by west tributaries of Ahtell Creek, central Copper River region, southeastern AK; well exposed in walls of pass which leads north from West Fork of Indian Creek to southern tributary of Slana River (Mendenhall, 1905).


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 ([ ]).