Rockwell Formation
The Rockwell Formation is a late Devonian and early Mississippian mapped bedrock unit in West Virginia, Maryland, and Pennsylvania, in the United States.
| Rockwell Formation | |
|---|---|
| Stratigraphic range: Late Devonian to Early Mississippian | |
Rockwell Formation at Sideling Hill, I-68 roadcut | |
| Type | Sedimentary |
| Sub-units | Finzel Tongue, Patton Shale, Riddlesburg Shale |
| Underlies | Pocono Formation and Purselane Sandstone |
| Overlies | Hampshire Formation |
| Thickness | 500 to 540 feet in WV, 540 to 550 feet at Sideling Hill |
| Lithology | |
| Primary | Sandstone, shale, conglomerate |
| Location | |
| Region | Appalachian Mountains |
| Extent | West Virginia, Maryland, Pennsylvania |
| Type section | |
| Named for | Rockwell Run, West Virginia |
| Named by | Stose and Swartz, 1912 |
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