WVGES Trace Elements in West Virginia Coals

Click Here To Go To Trace Elements Framed Home Page Stratigraphic Distribution of Niobium (Nb)

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The stratigraphic distribution of  Niobium (Nb) shows a distinct trend with low Nb (<4 ppm) in coals of the Pocahontas, New River and lower Kanawha formations and higher and more variable Nb averages in coals of the upper Kanawha formation, Allegheny, Conemaugh and Dunkard Groups.  Pittsburgh and Redstone coals of the Monongahela group show low Nb values.  With no known mode of occurrence for Nb in coal, and the low correlation with ash yield, this stratigraphic trend is unexplained.
Go to Niobium State MapGo to Niobium Summary StatisticsGo to General Elements Page
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