Brallier Formation

Predominantly olive-gray to dark, thickly laminated marine shale, with considerable siltstone and thin sandstone lenses; mainly nonfossiliferous.
State West Virginia
Name Brallier Formation
Geologic age Devonian
Lithologic constituents
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Mudstone > Shalepredominantly olive-gray to dark, thickly laminated marine shale
Sedimentary > Clastic > Sandstone (Lens)
Comments Thickness: Northeastern 1300-2170 ft, Western 1105 ft, Southeastern 400-1600 ft

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 - Monroe - Pendleton - Pocahontas - Randolph