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National Geologic Map Database

Geologic Unit: Bluff

Usage:

Bluff bone bed (informal) of Belle Plains Formation of Wichita Group (TX)
Bluff bone bed (informal) of Wichita Group (TX)

Informal. The rank or lithologic term should not be capitalized.


Geologic age:

Permian


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

Named from Bluff Creek, south of Electra, Wichita Co., central northern TX (US geologic names lexicons, USGS Bull. 896, 1200).


AAPG geologic province:

Palo Duro basin


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 ([ ]).