Atoka Formation
Named after Atoka County, Oklahoma, the Atoka Formation is a geologic formation in central and western Arkansas, eastern Oklahoma, central and western Texas, and eastern New Mexico. It is the surface rock of the Boston Mountains and dominates exposures in the Frontal Ouachita Mountains of the Arkansas River Valley.
| Atoka Formation | |
|---|---|
| Stratigraphic range: Pennsylvanian | |
| Type | Geologic formation |
| Underlies | Hartshorne Sandstone |
| Overlies | Bloyd Formation, Johns Valley Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Shale |
| Location | |
| Region | Arkansas, Oklahoma |
| Country | United States |
| Type section | |
| Named by | J.A. Taff |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.