Named the Pickaway limestone [member] of the Greenbrier limestone in southeastern WV and southwestern VA for Pickaway, Monroe Co., WV. Consists of very dark, hard, sandy, stylolitic limestone that contains scanty marine fossils. Thickness is 175 to 400 feet. Overlies Taggard shale [member] and underlies Union limestone [member] both of Greenbrier. Unit is traced northeast until it disappears in northern part of Pocahontas Co. To southwest it increases in thickness to nearly 700 feet in Washington Co., VA, but wholly disappears before KY or TN borders. The Pickaway is of Late Mississippian age.
Source: GNU records (USGS DDS-6; Reston GNULEX).
Revised the Pickaway as the Pickaway Limestone of the Greenbrier Group in WV. On correlation chart it overlies the Taggard Formation and underlies the Union Limestone both of the Greenbrier Group.
Source: GNU records (USGS DDS-6; Reston GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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