Research Article

Distribution, Microfabric, and Geochemical Characteristics of Siliceous Rocks in Central Orogenic Belt, China: Implications for a Hydrothermal Sedimentation Model

Table 4

REE analysis results (×10−6) and related geochemical indices for siliceous rocks from the Bafangshan-Erlihe area.

No.LaCePrNdSmEuGdTbDyYHoErTmYbLu δCeδEu

FE0013.096.460.863.490.860.381.120.231.367.920.270.750.110.680.1019.750.921.841.000.330.37
FE0022.253.200.300.890.150.020.150.020.150.820.030.100.020.130.027.430.900.721.461.331.27
FE0030.621.360.190.920.260.070.260.050.331.860.060.180.030.190.034.550.911.280.950.240.27
FE0043.395.530.591.940.320.050.320.060.382.200.090.250.040.290.0513.290.900.681.280.860.83
FE0050.912.220.371.940.780.211.120.251.5910.090.340.880.120.650.0811.450.881.050.850.100.13
FE0061.883.210.401.610.330.060.350.060.363.400.070.190.030.170.028.720.850.771.220.841.01
FE0071.813.010.341.270.290.020.280.060.331.870.070.210.040.250.048.020.890.281.250.530.50
FE0082.244.580.602.490.560.190.580.100.584.030.120.370.060.410.0612.930.911.581.020.410.40
FE0090.721.370.180.820.170.020.160.020.090.490.020.040.010.040.013.660.870.631.101.441.36
FE0102.854.740.532.020.480.050.460.080.502.610.110.350.050.390.0712.660.890.471.250.540.47
FE0113.515.530.541.600.200.010.190.030.171.120.040.140.020.170.0312.170.930.151.321.521.37
FE0120.701.240.140.570.130.020.130.020.120.810.030.080.010.090.023.280.910.601.170.550.53

Aver.2.003.540.421.630.380.090.430.080.503.100.100.290.040.290.049.830.900.841.160.720.71

represent normalized by PAAS [44], δCe, and δCe come from [45]: δCe = Ce/Ce* = /(  ×  )1/2 and δEu = Eu/Eu* = /(  ×  )1/2.