Research Article

Zircon U–Pb Dating and Lu-Hf Isotope of the Retrograded Eclogite from Chicheng, Northern Hebei Province, China

Table 2

Trace element concentrations of zircons in retrograded eclogite (ppm).

SpotLaCePrNdSmEuGdTbDyHoErTmYbLuYΣREELREEHREELREE/HREEδEuδCe

Sample 160601
1.10.0010.0660.0000.0350.1700.3133.741.377.751.072.050.332.600.4034.1119.900.5919.320.030.562.30
2.10.0100.0980.0070.0470.2250.3903.791.045.500.861.730.251.780.2324.2015.960.7815.180.050.682.78
3.10.0040.0730.0020.0200.1940.3242.770.965.380.620.980.140.910.1318.0712.500.6211.890.050.766.26
4.10.0010.1460.0010.0480.2760.3223.221.106.690.791.560.211.710.1823.2416.250.7915.450.050.6427.37
5.10.0000.0650.0010.0190.3210.3704.681.9212.211.622.490.302.230.3146.5626.530.7725.760.030.5133.37
7.10.0030.1320.0010.0460.4820.5736.051.496.210.671.220.171.110.1620.8118.311.2417.070.070.6124.06
8.10.0030.0700.0030.0160.2590.3914.701.427.530.881.260.171.370.1724.5318.240.7417.500.040.556.11
9.10.0000.1100.0030.0230.2650.3714.541.236.590.841.480.231.530.2023.7217.410.7716.640.050.5413.62
12.10.0000.1000.0000.0210.3470.5395.041.517.951.092.060.261.910.2431.0021.071.0120.060.050.693.86
16.10.0090.0580.0020.0440.3020.4654.961.739.911.241.750.261.850.2332.9422.810.8821.930.040.613.30
17.10.0000.1100.0030.0250.1380.1962.611.057.671.162.220.322.340.3131.7118.150.4717.670.030.5012.88

Sample 160602
1.10.0000.5420.0000.1230.3610.2193.551.5020.688.9543.9710.33113.1920.43248.97223.841.25222.600.010.383.66
2.10.0001.1100.0050.0810.9871.18711.463.2821.754.039.681.4010.021.36117.3466.343.3762.970.050.6665.89
3.10.0110.1570.0000.0400.0850.1150.950.547.793.2914.352.8825.764.67111.0160.630.4160.220.010.772.65
4.10.0050.7090.0050.1070.5640.7048.743.0720.863.366.840.956.600.9987.2053.512.0951.410.040.5329.44
5.10.0430.6190.0150.1070.4060.5886.882.8223.574.6010.481.4110.221.43122.3663.171.7861.390.030.566.01
6.10.0100.6520.0040.0480.6151.09114.755.4534.855.029.001.107.561.08130.4081.222.4278.800.030.5023.52
7.10.0850.7450.0080.0570.5730.5715.942.3218.243.6811.291.8918.533.0297.2066.942.0464.900.030.605.44
8.10.0060.4620.0040.0580.4790.4365.662.4120.073.648.471.149.041.21109.7253.101.4451.650.030.4923.57
9.10.0431.3840.0120.2620.8301.10410.693.8729.215.2211.551.6912.141.74154.7679.753.6376.110.050.6614.63
10.10.0770.5520.0100.1010.4110.4797.223.0726.755.5013.421.9315.022.12162.4076.661.6375.030.020.444.24
11.10.0050.5340.0000.0000.4280.5547.073.0424.194.9011.591.7212.611.87137.7068.511.5266.990.020.5180.78