Rare Earth Analysis of Cherts of the Tri-State Area (Ohio, Pennsylvania, West Virginia)
Creators:Murphy, James L., 1941-
Contributors:Morton, John P.
Keywords:Prehistoric lithic material sources
Ohio Valley chert sources
Upper Mercer Flint
Plum Run Flint
Bluebird Site, West Virginia
Saddle Site, West Virginia
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Publisher:Archaeological Society of Ohio
Citation:James L. Murphy and John P. Morton, "Rare Earth Analysis of Cherts of the Tri-State Area (Ohio, Pennsylvania, West Virginia)," Ohio Archaeologist 60 no. 4 (Fall 2010): 30-33.
Attempts to distinguish fresh-water and marine cherts of the lower, middle, and upper Pennsylvania strata of Ohio, Pennsylvania, and West Virginia using rare earth element analysis with direct current plasma emission spectrometry is inconclusive, but the relative amounts of rare earth elements are useful in sourcing some prehistoric materials. Specifically, lithic material from Middle and Late Woodland sites in Marshall Co., West Virginia, previously misidentified as Brush Creek chert occurring some 100 km from the sites, can be confidently identified as local bedded chert from the Upper Washington limestone of the Dunkard Group outcropping only a few km distant.