Usage:
Church Rock Member of Chinle Formation (AZ*,CO*?,UT*)
Subunits:
(alphabetical): Bowknot Bed (UT), Hite Bed (AZ*,UT*).
Geologic age:
Late Triassic*
Type section, locality, area and/or origin of name:
Type section: about 4 mi north of Church Rock, on Comb Ridge, and about 6.5 mi northeast of Kayenta, Navajo Co., AZ. Origin of name not stated by authors, but probably named from Church Rock (Stewart and others, 1972).
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 ([ ]).