U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Chediski

Usage:

Chediski Sandstone Member of Troy Quartzite (AZ*)


Geologic age:

Mesoproterozoic*


Type section, locality, area and/or origin of name:

Type locality: exposures in ridge known locally as Chediski Mountain which rises 1,000 ft above Canyon Creek opposite mouth of Willow Creek, Fort Apache Indian Reservation, AZ. Presumably named from Chediski Mountain, Fort Apache Indian Reservation, Navajo Co., AZ (Burchard, 1931).


AAPG geologic province:

Basin-and-Range province
Black Mesa 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 ([ ]).