The Rockwell Formation is a late Devonian and early Mississippian mapped bedrock unit in West Virginia , Maryland , and Pennsylvania , in the United States.
2-518: The Rockwell Formation was described at its type section at Rockwell Run in West Virginia as soft arkosic sandstone , fine hard conglomerate , and buff hackly shale . The formation was originally described in West Virginia by Stose and Swartz (1912). It was first described in Maryland by H. E. Vokes (1957), and later described in central Pennsylvania by C. R. Wood (1980). The Rockwell
4-766: Is generally considered a Formation . At Formation rank, it has several members, including the Patton and Riddlesburg Shale Members, and the Finzel Tongue. It has been reduced in rank to a member of the Price Formation in West Virginia. The Rockwell is a lateral equivalent of the Huntley Mountain Formation and the Spechty Kopf Formation , as all three underlie the prominent Pocono Formation and its lateral equivalent,
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