New River Formation

(part of Pottsville Group) - predominantly sandstone, with some shale, siltstone, and coal. Grades to nearly all sandstone in the subsurface. Extends from the top of the Upper Nuttall Sandstone to the top of the Flattop Mountain Sandstone. Includes the Iaeger, Sewell, Welch, Raleigh, Beckley, Fire Creek, and Pocahontas Nos. 8 and 9 coals.
State West Virginia
Name New River Formation
Geologic age Pennsylvanian
Lithologic constituents
Major
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Coal
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Siltstone
Comments Thickness: Northeastern 100 ft, Southeastern 875-1030 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 Barbour - Braxton - Fayette - Greenbrier - Kanawha - Logan - McDowell - Mercer - Mingo - Nicholas - Pendleton - Pocahontas - Raleigh - Randolph - Summers - Tucker - Upshur - Webster - Wyoming