Usage:
Corduroy Member of Schnebly Hill Formation (AZ)
Corduroy Member of Supai Formation (AZ)
Geologic age:
early Permian
Type section, locality, area and/or origin of name:
Not designated. Named from Corduroy Creek west of U.S. Highway 60 about 15 mi east of Cibecue, in sec. 3, T. 8 N., R. 20 E., Navajo Co., AZ (Winters, 1963).
AAPG geologic province:
Black Mesa basin
Basin-and-Range province
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 ([ ]).