Usage:
No current usage?
(†Tusas Granite (NM) considered abandoned? Uncertain if used by the NM Geol. Survey. Not used by the USGS.)
Geologic age:
Proterozoic
Type section, locality, area and/or origin of name:
Not designated. Exposed along east side of Petaca area between Jawbone Mountain and Servilleta Plaza, in scattered inliers near Tres Piedras, and on Ojo Caliente Mountain, in T. 29 N., R. 7 E., and T. 29 N., R. 7 and 8 E., Rio Arriba Co., NM. [Named from Tusas Mountains] (Just, 1937).
AAPG geologic province:
Southern Rocky Mountain 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 ([ ]).