Trace Elements in West Virginia Coals

Stratigraphic Distribution of Samarium (Sm)

Chart of average samarium (Sm) 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 Samarium (Sm) shows no trends in abundance with a somewhat erratic distribution and less than 0.25 ppm in almost all coals, and with lower abundances in the important coals (Pittsburgh, Redstone and Sewickley) of the Monongahela Group.

General Elements Page

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Page content last revised: March 2, 2002