Table 3: The content of common elements and trace elements in Xishanyao Formation of Gashunwusan Mine (μg/g).

Test
item
Average of B1 Average of B2 Average of B3 Average of B4 Average of B8 Average of B9 Clark value Chinese coal US coal World coal
Aad% 36.69 44.83 51.55 11.38 5.03 8.79 nd nd nd nd
SiO2% 22.16 25.98 23.94 4.74 0.85 3.10 nd 8.47 5.80 nd
Al2O3% 7.76 11.06 10.07 2.73 0.75 1.64 nd 5.98 2.80 nd
Fe2O3% 2.32 2.74 12.38 0.97 0.42 0.40 nd 4.85 1.90 nd
CaO% 1.14 1.17 1.15 1.12 1.76 1.97 nd 1.23 0.64 nd
MgO% 1.01 0.92 1.08 0.28 0.29 0.46 nd 0.22 0.18 nd
K2O% 0.97 1.10 1.01 0.25 0.01 0.17 nd 0.19 0.22 nd
Na2O% 0.25 0.13 0.25 0.07 0.03 0.03 nd 0.16 0.11 nd
P2O5% 0.34 0.55 0.53 0.11 0.03 0.07 nd 0.092 0.098 nd
Li 0.20 0.18 0.11 0.61 1.08 1.05 20.00 31.80 16.00 12.00
Be 0.76 0.11 0.13 0.12 0.27 0.07 2.80 2.11 2.20 1.60
V 10.20 6.32 3.62 13.22 9.60 10.40 135.00 35.10 22.00 25.00
Cr 8.29 5.04 4.09 6.54 5.86 5.02 100.00 15.40 15.00 16.00
Mn 194.13 79.05 42.03 36.50 42.44 87.30 950.00 nd nd 85.00
Co 6.26 1.03 5.35 0.87 10.43 5.24 25.00 7.08 6.10 5.10
Ni 3.95 2.87 6.16 3.54 6.29 6.59 75.00 13.70 14.00 13.00
Cu 9.34 10.30 8.69 12.60 8.37 8.70 55.00 17.50 16.00 16.00
Zn 8.00 2.20 1.56 5.04 3.04 4.41 70.00 41.40 53.00 23.00
Ga 7.03 9.54 0.92 7.34 3.94 4.10 15.00 6.55 5.70 5.80
Rb 0.34 0.37 0.18 1.33 1.39 1.24 90.00 9.25 21.00 14.00
Sr 181.75 205.22 41.10 238.66 176.14 257.62 375.00 140.00 130.00 110.00
Ag 0.02 0.03 0.05 0.05 0.03 0.02 0.08 nd nd nd
Cd 0.04 0.03 0.02 0.05 0.03 0.03 0.20 0.25 0.47 0.20
Cs 1.01 0.03 0.01 0.14 0.12 0.03 3.00 1.13 nd 1.00
Ba 154.56 268.00 15.44 192.04 94.44 108.33 425.00 159.00 170.00 150.00
Tl 0.02 0.03 0.02 0.10 0.02 0.01 0.43 0.47 1.20 nd
Pb 2.63 1.98 1.44 2.67 2.49 2.79 12.50 15.10 11.00 7.80
Bi 0.02 0.02 0.02 0.03 0.02 0.02 0.17 0.79 <1.00 nd
U 0.17 0.04 0.02 0.10 0.09 0.08 2.70 2.43 2.10 2.40
Sr/Ba 1.18 0.77 2.66 1.24 1.87 2.38 nd nd nd nd
V/Ni 2.58 2.20 0.59 3.73 1.53 1.58 nd nd nd nd
V/Zn 1.28 2.87 2.32 2.62 3.16 2.36 nd nd nd nd
Ni/Co 0.63 2.79 1.15 4.07 0.60 1.26 nd nd nd nd

nd (Not Detected).