| Wells Creek Formation Stratigraphic range: Middle Ordovician | |
|---|---|
| Type | Formation |
| Underlies | Black River Group |
| Overlies | Knox Group |
| Location | |
| Region | Ohio and West Virginia |
| Country | United States |
The Wells Creek Formation is a geologic formation in West Virginia. It dates back to the Ordovician period.
The Glenshaw Formation is a mapped sedimentary bedrock unit in Pennsylvania, Maryland, West Virginia, and Ohio, of Pennsylvanian age. It is the lower of two formations in the Conemaugh Group, the upper being the Casselman Formation. The boundary between these two units is the top of the marine Ames Limestone. The Conemaugh Group overlies the Upper Freeport coal bed of the Allegheny Formation and underlies the Pittsburgh coal seam of the Monongahela Group.
The Monongahela Formation is a geologic formation in West Virginia, Pennsylvania, Ohio, and Maryland. It preserves fossils dating back to the Carboniferous and Permian periods.
The Kanawha Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Hinton Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period. It is mainly made up of limestone, sandstone, and shale.
The Bluestone Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Bluefield Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Hampshire Formation is a geologic formation in West Virginia, USA. It preserves fossils dating back to the Devonian period.
The Keefer Sandstone is a geologic formation in West Virginia. It preserves fossils dating back to the Silurian period.
The Rochester Shale is a geologic formation in West Virginia. It preserves fossils dating back to the Silurian period.
The Rose Hill Formation is a geologic formation in West Virginia, United States. It preserves fossils dating back to the Silurian period, and is a source of Iron ore for nearby Iron Foundries.
The Williamsport Sandstone is a sandstone geologic formation in West Virginia, Virginia, Pennsylvania, and Maryland. the formation includes the Cedar Creek Limestone member. Near Cumberland, Maryland it includes the Cedar Creek Limestone member. It preserves fossils dating back to the Silurian period.
The Washington Formation is a coal, sandstone, and limestone geologic formation in West Virginia. It preserves fossils dating back to the Permian period.
The Tomstown Dolomite or Tomstown Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia. It preserves fossils dating to the Cambrian Period.
The Harpers Formation is a geologic formation in Maryland, Pennsylvania, Virginia, and West Virginia, consisting of schist, phyllite, and shale. It dates back to the early Cambrian period. It is considered part of the Chilhowee Group.
The Swift Run Formation is a geologic formation in Virginia and West Virginia. It dates back to the Neoproterozoic.
The Waynesboro Formation is a limestone, dolomite, and sandstone geologic formation in Virginia, Maryland, Pennsylvania and West Virginia. It some areas it is composed of limestone and dolomite. The Waynsboro Formation is one of the formations that make up the Shenandoah Valley. It dates back to the Cambrian period and is not considered fossiliferous.
The Elbrook Formation is a geologic formation in West Virginia. It dates back to the Cambrian period.
The Oswego Formation is a geologic formation in West Virginia. It dates back to the Ordovician period.
The Maccrady Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Carboniferous period.
The Salina Formation is a geologic formation in West Virginia. It preserves fossils dating back to the Silurian period.
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