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National Geologic Map Database

Geologic Unit: Oran

Usage:

Oran Sandstone (unranked) in Palo Pinto Formation of Canyon Group (TX)
Oran Sandstone Member of Palo Pinto Formation (TX)
Oran Sandstone of Strawn Group (TX)


Geologic age:

Late Pennsylvanian (Missourian)


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

Not designated. Present locally in Palo Pinto Co., TX. Origin of name not stated by authors, but probably named from town or Oran, Palo Pinto Co., TX (Plummer and Moore, 1922).


AAPG geologic province:

Bend arch
Fort Worth syncline


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 ([ ]).