WVGES Trace Elements in West Virginia Coals

Click Here To Go To Trace Elements Framed Home Page Gadolinium (Gd) Summary Statistics

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The histogram of gadolinium abundances in all West Virginia coal beds shows a skewed distribution with a mean of 1.46 ppm (± 1.19 ppm) on a whole coal basis.  The maximum Gd content was 13.26 ppm in the Sewell coal.  Gadolinium did not correlate with ash yield, and correlated mildly with other rare earth elements in monazite including dysprosium (Dy), neodymium (Nd) and erbium (Er) plus yttrium (Y), and ash related elements such as scandium (Sc), chromium (Cr) and zirconium (Zr).
 
Spearman Correlation Coefficients (r) with Gadolinium
Ash Yield
Dy
Nd
Er
V
Y
Sc
Cr
Zr
Eu
+0.5816
+0.7661
+0.7632
+0.7630
+0.7113
+0.6774
+0.6580
+0.6471
+0.6421
+0.6260
n = 335
n = 59
n = 273
n = 157
n = 334
n = 335
n = 335
n = 334
n = 335
n = 334
Go to Stratigraphic Distribution of GadoliniumGo to Gadolinium State MapGo to General Elements PageGo to All Elements Summary Statistics Table
 
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