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

Geologic Unit: Navajo

Usage:

Navajo Sandstone of Glen Canyon Group (AZ*,CO*,NM*,UT*)
Navajo Sandstone (NV)


Subunits:

(alphabetical): Lamb Point Tongue (UT*), Shurtz Tongue (UT*).


Geologic age:

Controversial.
Triassic(?)* or Early Jurassic*


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

Named from the "Navajo Country" of AZ, UT, and NM (Gregory, 1917).


AAPG geologic province:

Black Mesa basin*
Great Basin province*
Paradox basin*
Piceance basin*
Plateau sedimentary province*
San Juan basin*
Uinta basin*
Uinta uplift*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).