Tonoloway, Wills Creek, and Williamsport Formations (WVStw;0)

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	NGMDB product page for 13205
Counties	Berkeley - Grant - Greenbrier - Hampshire - Hardy - Mineral - Morgan - Pendleton - Pocahontas

Tonoloway, Wills Creek, and Williamsport Formations

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.