WVGES Trace Elements in West Virginia Coals

Click Here To Go To Trace Elements Framed Home Page Europium (Eu) Summary Statistics

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The histogram of europium abundances in all West Virginia coal beds shows a near-normal, slightly skewed distribution with a mean of 0.33 ppm (± 0.17 ppm) on a whole coal basis.  The maximum Eu content was 1.78 ppm in a bench of the Coalburg coal.  Europium correlated slightly with ash yield and scandium (Sc), thorium (Th), chromium (Cr), vanadium (V), lead (Pb) and lithium (Li) related to ash forming minerals.  Europium is one of the rare earth elements and correlated mainly with the other rare earth elements samarium (Sm), cerium (Ce), ytterbium (Yb), terbium (Tb), lutetium (Lu), lanthanum (La), neodymium (Nd), erbium (Er) and dysprosium (Dy).
 
Spearman Correlation Coefficients (r) with Europium
Ash Yield
Sm
Ce
Yb
Sc
Tb Lu
La
Th
+0.6177
+0.9009
+0.8838
+0.8705
+0.8595
+0.8426 +0.8343
+0.8307
+0.8053
n = 540
n = 536
n = 540
n = 536
n = 540
n = 492 n = 501
n = 534
n = 527
Cr
V
Pb
Li
Nd
Er Hf
Ta
Dy
+0.8016
+0.7650
+0.7038
+0.6955
+0.6908
+0.6595 +0.6498
+0.6478
+0.6462
n = 540
n = 539
n = 538
n = 540
n = 410
n = 207 n = 508
n = 462
n = 77
Go to Stratigraphic Distribution of EuropiumGo to Europium State MapGo to General Elements PageGo to All Elements Summary Statistics Table
 
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Page last revised: March 2, 2002


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