U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Nelchina River

Usage:

Nelchina River Gabbronorite (AK*)


Geologic age:

Jurassic, Middle*
and older


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

In westernmost parts of secs. 29 and 32, T. 1 S., R. 10 W., and in secs. 5 and 8, T. 2 S., R. 10 W., Anchorage C-1 quadrangle (scale 1:63,360), southern AK (Burns, 1996).


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 ([ ]).