Table 5:
The parameters of constant elements in geochemical characteristics.
Coal seam number
B1
B2
B3
B4
B8
B9
CaO/(Fe
2
O
3
+CaO)
0.46~0.52
0.49
0.54
0.62
0.23~0.78
0.62
0.81
0.78~0.93
0.85