Usage:
/Chama-El Rito Member of Tesuque Formation of Santa Fe Group (NM)
Also called El Rito Formation.
[The use of a hyphen between undifferentiated formations is not considered proper notation (CSN, 1933).]
Geologic age:
late Tertiary (Miocene)
Type section, locality, area and/or origin of name:
Type section: in W/2 sec. 23, T. 23 N., R. 7 E., Rio Arriba Co., NM. In the two easternmost rincons at the head of Canada Honda, underlies area called Rincon del Cuervo (see USGS Mendanales quadrangle map, 1953) (Galusha and Blick, 1971).
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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).