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Harrell Shale

Harrell Shale (part of Millboro Shale) - dark gray to black thinly laminated to fissile shale. Calcareous shale and limestone lenses near the base (Tully).
StateWest Virginia
NameHarrell Shale
Geologic ageDevonian
Original map labelDh
CommentsThickness: Northeastern 0-300 ft, Western 305 ft, Southeastern 50-100 ft
Primary rock typeshale
Secondary rock typelimestone
Other rock types
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shaledark gray to black thinly laminated to fissile shale. Calcareous shale near the base (Tully).
Minor
Sedimentary > Carbonate > Limestone (Lense)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
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 coverageGrant - Hampshire - Hardy - Monroe - Pendleton - Randolph

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URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=WVDh;0
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