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National Geologic Map Database

Geologic Unit: Brushy Basin

Usage:

Brushy Basin Member of Morrison Formation (AZ*,CO*,NM*,UT*)


Subunits:

Jackpile Bed (NM).


Geologic age:

Late Jurassic*; locally Early Cretaceous*


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

Named from exposures in Brushy Basin, near Blanding, San Juan Co., southeastern UT (US geologic names lexicon, USGS Bull. 1200).


AAPG geologic province:

Black Mesa basin*
Paradox basin*
San Juan 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).