WVGES Trace Elements in West Virginia Coals

Click Here To Go To Trace Elements Framed Home Page Yttrium (Y) Summary Statistics

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Yttrium averaged 7.53 ppm (± 4.21 ppm) in West Virginia coals with a broad, near normal histogram showing a slightly skewed distribution with a tail toward higher values and a maximum value of 32.61 ppm in a bench of the Coalburg coal.  Yttrium did not correlate with ash yield, total sulfur, or pyritic sulfur but moderately with several rare earth elements including dysprosium (Dy), erbium (Er), ytterbium (Yb), neodymium (Nd), lutetium Lu), gadolinium (Gd), europium (Eu) and samarium (Sm) and several ash related elements such as vanadium (V), gallium (Ga), scandium (Sc), zirconium (Zr) and lead (Pb).
Spearman Correlation Coefficients (r) with Yttrium
Ash Yield
n = 845
n = 78
n = 208
n = 547
n = 418
n = 503
n = 844
 n = 844
 n = 335
 n = 845
 n = 747
n = 842 
n = 540 
n = 538 
Go to Stratigraphic Distribution of YttriumGo to Yttrium State MapGo to General Elements PageGo to All Elements Summary Statistics Table
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