Usage:
Cordito Member of Los Pinos Formation (CO*,NM*)
Geologic age:
Tertiary (Oligocene to Miocene)*
Type section, locality, area and/or origin of name:
Named from exposures in Canyon de Cordito[?], 4 mi south of Tres Piedras, Las Tablas quadrangle, Rio Arriba Co., central northern NM (Barker, 1958).
[Canon de Tio Gordito is 4 mi south of Tres Piedras, in secs. 9, 10, and 11, T. 27 N., R. 9 E., Petaca Peak 7.5-min quadrangle, Rio Arriba Co., Carson National Forest area, central northern NM.]
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 ([ ]).