LocNo: 6991Fayetteville Shale, upper member
| Country: |
USA
|
| Province: |
Arkansas, Washington Co.
|
| Locality: |
West Fork, W of
|
| Layer: | Fayetteville Shale, upper member |
| Lower Boundary: |
UAR basal--lower shale of Fayetteville, 327 million years
|
| Upper Boundary: |
UAR lower shale--Wedington/Fayetteville, 326.4 million years
|
| Georeference: |