Tonoloway, Wills Creek, and Williamsport Formations

Includes the thin-bedded platy argillaceous limestones of the Tonoloway, the thin-bedded shale with fossiliferous limestones of the Wills Creek, the Bloomsburg red clastic facies, and the greenish-brown to white Williamsport Sandstone. The Wills Creek contains anhydrite and rock salt, the latter supplying brine from deep wells along the Ohio River.
State West Virginia
Name Tonoloway, Wills Creek, and Williamsport Formations
Geologic age Silurian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shalethe thin-bedded shale of the Wills Creek
Sedimentary > Carbonate > Limestone (Bed)includes the thin-bedded platy argillaceous limestones of the Tonoloway; the fossiliferous limestones of the Wills Creek
Sedimentary > Clastic > Sandstonegreenish-brown to white Williamsport Sandstone.
Minor
Sedimentary > Clasticthe Bloomsburg red clastic facies
Incidental
Sedimentary > Chemical > Evaporite > AnhydriteThe Wills Creek contains anhydrite and rock salt, the latter supplying brine from deep wells along the Ohio River.
Sedimentary > Chemical > Evaporite > SaltThe Wills Creek contains anhydrite and rock salt, the latter supplying brine from deep wells along the Ohio River.
Comments Thickness: Northeastern 1010-1075 ft, Western 865 ft, Southeastern 140-365 ft
References

Cardwell, D.H., Erwin, R.B., and Woodward, H.P., 1968 (slightly revised 1986), Geologic Map of West Virginia: West Virginia Geological and Economic Survey, Map 1, East Sheet, scale 1:250,000.

NGMDB product
Counties Berkeley - Grant - Greenbrier - Hampshire - Hardy - Mineral - Morgan - Pendleton - Pocahontas