Named the Draper dolomite member of the Nittany Formation for Draper, Pulaski Co., VA. Consists of medium-bedded light-gray dolomitic limestone and dolomite; most beds are siliceous and slightly argillaceous; bedding is uniform in lower part of member but irregular in upper part. Thickness is as much as 475 feet. Unit conformably underlies the Bellefonte formation. The Draper is of Early Ordovician age.
Source: GNU records (USGS DDS-6; Reston GNULEX).
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