Trace Elements in West Virginia Coals
Lithium
(Li) Summary Statistics
Lithium averages 19.09 ppm (± 18.12 ppm) in West Virginia
coals with a histogram skewed toward low values and showing a tail toward
higher values and a maximum value of 168.51 ppm in the Brush Creek coal
(see cautionary note page). Lithium
correlated with ash yield and the ash related elements thorium (Th), chromium
(Cr), lead (Pb), vanadium (V), scandium (Sc) and zirconium (Zr). Lithium
also correlated with rare earth elements which are components in the detrital
mineral monazite such as cerium (Ce), lanthanum
(La), samarium (Sm), europium (Eu), dysprosium (Dy) and neodymium (Nd).
Spearman Correlation Coefficients (r) with Lithium
Ash Yield
|
Th
|
Cr
|
Pb
|
Ce
|
V
|
La
|
Sc
|
Sm
|
+0.7393
|
+0.8174
|
+0.8147
|
+0.7839
|
+0.7794
|
+0.7785
|
+0.7592
|
+0.7590
|
+0.7087
|
n = 845
|
n = 822
|
n = 844
|
n = 842
|
n = 546
|
n = 844
|
n = 545
|
n = 845
|
n = 538
|
Hf
|
Eu
|
Ga
|
Nb
|
Dy
|
Zr
|
Ta
|
Nd
|
Cs
|
+0.7118
|
+0.6955
|
+0.6882
|
+0.6871
|
+0.6867
|
+0.6849
|
+0.6798
|
+0.6754
|
+0.6357
|
n = 509
|
n = 540
|
n = 844
|
n = 832
|
n = 78
|
n = 747
|
n = 462
|
n = 418
|
n = 781
|
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Page last revised: March 2, 2002
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