Trace Elements in West Virginia Coals

Stratigraphic Distribution of Thorium (Th)

Chart of average thorium (Th) content, in ppm on a whole coal basis, for each West Virginia coal bed in stratigraphic order (larger version) — Select the chart to open a larger version.

The stratigraphic distribution of Thorium (Th) shows a general trend with coals of the upper Kanawha Formation, the Allegheny Group and Conemaugh Group exhibited the greatest whole coal thorium contents. Pocahontas, New River and lower Kanawha Formation coal beds contained low and variable thorium contents, and coals of the Upper Pennsylvanian, especially the important Pittsburgh, Redstone and Sewickley coals exhibited low thorium abundances.

General Elements Page
HAP Elements Page

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Page content last revised: March 1, 2002