Usage:
Tewa Group (NM*)
Subunits:
(alphabetical) --all in NM*: Bandelier Tuff, Cerro Rubio Quartz Latite, Cerro Toledo Rhyolite, Valles Rhyolite.
Geologic age:
Quaternary (Pleistocene)*
Type section, locality, area and/or origin of name:
Notable exposures in Los Alamos area, north-central NM. Area has no distinctive physiographic feature from which to take a name for group. Name Tewa (after Indian tribe of area and by whose name the surrounding mountains were once known) was chosen (Griggs and Hem, 1964).
AAPG geologic province:
Estancia basin*
Orogrande basin*
Palo Duro basin*
Permian basin*
San Juan basin*
San Luis 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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).