WVGES Trace Elements in West Virginia Coals

Click Here To Go To Trace Elements Framed Home Page Thorium (Th) Summary Statistics

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Thorium in West Virginia coals averaged 3.02 ppm (± 2.12 ppm) with a skewed histogram showing a significant tail toward higher values and a maximum value of 12.9 ppm.  Highest Th samples occurred in the Stockton and Coalburg coals.  Thorium correlated moderately well with ash yield, and the ash related elements hafnium (Hf), chromium (Cr), tantalum (Ta), scandium (Sc), lithium (Li), lead (Pb), zirconium (Zr), vanadium (V), niobium (Nb), tellurium (Te), gallium (Ga) and cesium (Cs).  Thorium also correlated with rare earth elements present in the mineral monazite, especially cerium (Ce), lanthanum (La), samarium (Sm), europium (Eu), lutetium (Lu), ytterbium (Yb), dysprosium (Dy), terbium (Tb) and neodymium (Nd).
 
Spearman Correlation Coefficients (r) with Thorium
Ash Yield
Hf
Cr
Ce
Ta
La
Sc
Li
Sm
Eu
Pb
+0.7912
+0.8947
+0.8898
+0.8880
+0.8766
+0.8745
+0.8644
+0.8174
+0.8142
+0.8053
+0.7984
n = 822
n = 508
n = 821
n = 530
n = 461
n = 526
n = 822
n = 822
n = 525
n = 527
n = 819
Lu
Zr
V
Yb
Nb
Dy
Tb
Nd
Te
Ga
Cs
+0.7622
+0.7590
+0.7511
+0.7482
+0.7104
+0.6867
+0.6786
+0.6785
+0.6723
+0.6619
+0.6443
n = 502
n = 728
n = 821
n = 529
n = 810
n = 70
n = 493
n = 414
n = 113
n = 821
n = 776
Go to Stratigraphic Distribution of ThoriumGo to Thorium State MapGo to General Elements PageGo to HAP Elements PageGo to All Elements Summary Statistics TableGo to HAP Summary Statistics Table
 
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