Usage:
Contadero Formation (NM*-notably in San Andres Mountains)
Subunits:
(alphabetical) --all in NM: Rhodes Canyon Member, Salinas Peak Member, Thurgood Member.
Geologic age:
early Late Devonian (Frasnian)*
Type section, locality, area and/or origin of name:
Type section: on north slope of Rhodes Canyon, [southeastern flank of Amole Ridge], near an abandoned mining claim, in S/2 sec. 8, T. 13 S., R. 4 E., [approx. Lat. 33 deg. 11 min. 34 sec. N., Long. 106 deg. 37 min. 48 sec. W, Black Top Mountain 15-min quadrangle, 1955 ed.], Sierra Co., San Andres Mountains, Sierra Co., southwestern NM. Named from political division Contadero (Stevenson, 1945).
AAPG geologic province:
Orogrande 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 ([ ]).