Usage:
El Rito Formation (NM)
Also called /Chama-El Rito Member of Tesuque Formation.
[The use of a hyphen between undifferentiated [members] is not considered proper notation (CSN, 1933).]
Geologic age:
Tertiary
Eocene
Oligocene
Type section, locality, area and/or origin of name:
Type localities: found along Arroyo Hondo about 4 mi south of Santa Fe and along Little Tesuque Canyon, nearly 5 mi northeast of Santa Fe, Rio Arriba Co., NM (Smith, 1938).
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 ([ ]).