Usage:
No current usage.
(Rocks of †Lukachukai Member of Wingate Sandstone (AZ,CO,NM,UT) reallocated to Wingate Sandstone. See Wingate.)
Geologic age:
Early Jurassic
Type section, locality, area and/or origin of name:
Type locality: sandstone that forms vertical cliff on escarpment northeast of Lukachukai, Apache Co., northeastern AZ. Present throughout most of the Navajo Indian Reservation (Harshbarger and others, 1957).
AAPG geologic province:
Black Mesa basin
Paradox 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 ([ ]).