Trace Elements in West Virginia Coals

Stratigraphic Distribution of Erbium (Er)

Erbium (Er) shows less than 2 ppm on a whole coal basis in most West Virginia coals with a lower Er in coals of the lower Kanawha Formation and the Monongahela Group.

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Page last revised: March 2, 2002

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            West Virginia Geological & Economic Survey
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