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National Geologic Map Database

Geologic Unit: Valles

Usage:

Valles Rhyolite of Tewa Group (NM*)


Subunits:

(alphabetical) --all in NM*: Banco Bonito Member, Battleship Rock Member, Deer Canyon Member, El Cajete Member, Redondo Creek Member, Valle Grande Member.


Geologic age:

Quaternary (Pleistocene)*


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

Type locality: rhyolite domes in Valles Caldera in west-central part of Los Alamos area, north-central NM (Griggs and Hem, 1964).


AAPG geologic province:

San Juan basin*


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).