Brallier Formation and Harrell Shale, undivided (WVDbh;0)

State	West Virginia
Name	Brallier Formation and Harrell Shale, undivided
Geologic age	Devonian
Original map label	Dbh
Comments	Printed map has no indiviual description for this unit and no name, but has individual symbol and color. Only uses brackets to combine Db and Dh. Dbh is used in digital map, so combined Db and Dh together and called this the "Brallier Formation and Harrell Shale, undivided". Combined thickness: Northeastern 1300-2470 ft, Western 1410 ft, Southeastern 450-1700 ft
Primary rock type	shale
Secondary rock type	siltstone
Other rock types	sandstone; limestone
Lithologic constituents	Major Sedimentary > Clastic > SiltstoneBrallier Formation : with considerable siltstone and thin sandstone lenses; mainly nonfossiliferous. Sedimentary > Clastic > Mudstone > ShaleBrallier Formation : predominantly olive-gray to dark, thickly laminated marine shale; Harrell Shale: dark gray to black thinly laminated to fissile shale. Calcareous shale and limestone lenses near the base (Tully). Minor Sedimentary > Clastic > Sandstone (Lense)Brallier Formation : with considerable siltstone and thin sandstone lenses; mainly nonfossiliferous. Incidental Sedimentary > Carbonate > Limestone (Lense)Harrell Shale: Calcareous shale and limestone lenses near the base (Tully).
Map references	Digital version of 1968 printed map available from http://wvgis.wvu.edu/data/data.php with the specific data available from http://wvgis.wvu.edu/data/dataset.php?action=search&ID=43 [http://wvgis.wvu.edu/data/data.php] [http://wvgis.wvu.edu/data/dataset.php?action=search&ID=43]
Unit 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.
Geographic coverage	Berkeley - Grant - Hampshire - Hardy - Mineral - Morgan - Pendleton