Usage:
[?] Elves Chasm Tongue of Muav Limestone of Tonto Group (AZ-local)
[?] Elves Chasm Tongue of Bright Angel Shale of Tonto Group (AZ-local)
Recognized locally in Grand Canyon.
Geologic age:
Middle Cambrian
Type section, locality, area and/or origin of name:
Not designated. Is an excellent horizon marker throughout most of east-central Grand Canyon. Can be traced eastward from Bass Canyon to and beyond Hermit Canyon. Named from Elves Chasm Canyon, Grand Canyon, Coconino Co., northwestern AZ (McKee, 1945).
AAPG geologic province:
Plateau sedimentary 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 ([ ]).