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National Geologic Map Database

Geologic Unit: Stanley

Usage:

Stanley Group (AR,OK*)
Stanley Shale (AR*,OK*,TX*?)
Originally called Standley.


Subunits:

GROUP STATUS (alphabetical): Chickasaw Creek Formation (AR,OK) or Chickasaw Creek Shale (OK*), Moyers Formation (AR,OK*), Tenmile Creek Formation (AR,OK*).
FORMATION STATUS (alphabetical): Chickasaw Creek Member (AR*), Gap Ridge Sandstone Member (AR*), Hatton Tuff Lentil (AR*,OK*), Hot Springs Sandstone Member (AR*), Moyers Member (AR*), Parker Hill Sandstone Member (AR), Tenmile Creek Member (AR*), Tuskahoma Member (OK).


Geologic age:

Mississippian, Late*
Meramecian*
Chesterian*


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

Named from Stanley, Pushmataha Co., OK (Taff, 1902).


AAPG geologic province:

Arkoma basin*
Ouachita folded belt*


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 ([ ]).