Usage:
Tshirege Member of Bandelier Tuff of Tewa Group (NM*)
Subunits:
Tsankawi Pumice Bed (NM*).
Geologic age:
Quaternary (Pleistocene)*
Type section, locality, area and/or origin of name:
Type area: Pajarito Plateau and adjacent lower slopes of the Sierra de los Valles, Los Alamos area, north-central NM. Named from exposures in vicinity of Tshirege ruins, in NW/4 sec. 5, T. 18 N., R. 7 E., where member forms capping rock over large area of Pajarito Plateau (Griggs and Hem, 1964).
AAPG geologic province:
Estancia 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 ([ ]).