喜马拉雅夏如淡色花岗岩⁃伟晶岩的矿物学特征
程飞越, 谢磊, 陈小明

Mineralogical characteristics of the Xiaru leucogranite⁃pegmatite in the Himalayan oregen
Feiyue Cheng, Lei Xie, Xiaoming Chen
表3 夏如淡色花岗岩?伟晶岩中代表性电气石的主量(wt.%)和微量成分(×10-6)分析结果
Table 3 Major (wt.%) and trace (×10-6) elements of representative tourmalines from the Xiaru leucogranite?pegmatite
未矿化白云母花岗岩含铌钽钨白云母花岗岩含铌钽伟晶岩
123456789101112
EPMA (wt.%)
SiO234.0134.5234.5234.9534.5633.8634.5934.6033.9634.8135.1133.87
TiO20.350.200.330.320.270.430.310.200.620.240.461.21
Al2O332.3133.6932.8833.5434.2032.2733.6534.2432.8032.4533.2732.42
Cr2O31.640.04-0.040.01----0.01--
FeO13.6614.2114.2513.7515.1116.7615.4615.0115.6815.8115.5715.90
MgO2.131.432.332.320.760.650.660.540.970.230.530.78
CaO0.570.200.430.390.110.280.140.100.340.260.150.39
MnO0.030.120.100.130.100.110.100.120.140.250.280.23
Na2O1.922.012.161.911.842.161.851.721.981.962.122.11
K2O0.080.050.050.040.040.060.030.030.070.040.030.02
Cl0.020.010.020.01-0.01----0.010.01
LA⁃ICP⁃MS (wt.%)
B2O310.209.769.609.7310.3310.4110.519.779.789.689.689.55
H2O*3.543.533.523.563.573.513.573.533.503.493.543.49
Total*100.4599.76100.19100.69100.9100.52100.8699.8699.8499.23100.7599.99
以31个阴离子(O2-,OH-,F-)计算
T: Si5.7575.8675.8655.8785.8065.7755.8165.8795.8145.9865.9455.814
Al0.2430.1330.1350.1220.1940.2250.1840.1210.1860.0140.0550.186
B2.9802.8622.8152.8242.9953.0663.0502.8652.8912.8742.8282.830
Z: Al6.0006.0006.0006.0006.0006.0006.0006.0006.0006.0006.0006.000
Y: Al0.2030.6140.4500.5260.5780.2610.4840.7350.4320.5620.5840.373
Ti0.0450.0260.0420.0400.0340.0550.0390.0260.0800.0310.0590.156
Cr0.2190.0050.0050.0010.001
Mg0.5380.3620.5900.5820.1900.1650.1650.1370.2480.0590.1340.200
Mn0.0040.0170.0140.0190.0140.0160.0140.0170.0200.0360.0400.033
123456789101112
Fe2+1.9342.0202.0251.9342.1232.3902.1742.1332.2452.2742.2052.282
∑Y2.9943.0873.1543.1602.9732.9372.9353.0833.1003.0443.0913.117
X: Ca0.1030.0360.0780.0700.0200.0510.0250.0180.0620.0480.0270.072
Na0.6300.6620.7120.6230.5990.7140.6030.5670.6570.6530.6960.702
K0.0170.0110.0110.0090.0090.0130.0060.0070.0150.0090.0060.004
X□0.2490.2900.1990.2980.3720.2220.3650.4090.2650.2900.2700.222
OH3.9943.9973.9943.9974.0003.9974.0004.0004.0004.0003.9973.997
Cl0.0060.0030.0060.0030.0030.0030.003
Mg/(Mg+Fe)0.220.150.230.230.080.060.070.060.100.030.060.08
LA⁃ICP⁃MS (×10-6)
Li350289223372225332404247509544471487
Be2.8111.06.48.20.926.19.21011139.5
V722936233.72.52.12.318242523
Co201317188.24.79.1102.83.12.83.1
Ni155.18.65.80.550.280.410.480.57-0.120.14
Cu-0.35-0.69-0.15--2.31.6--
Zn2201941932512692574144081294123212071234
Ga91117116631231328790144147134119
Ge1.75.92.33.32.55.14.35.75.15.13.52.1
Rb-0.060.060.04-----0.390.22-
Sr9.34.47.3210.710.164.52.24.04.74.13.8
Y0.100.010.020.510.03-0.02-0.100.430.010.01
Zr0.160.110.180.020.120.100.020.090.100.030.08-
Nb1.51.41.30.351.50.581.10.510.921.40.991.1
Mo0.39-0.23--0.080.07--0.070.08-
Ag0.02--0.250.120.430.090.05---0.20
Cd-0.06--0.15---0.070.540.28-
In0.190.220.200.080.170.180.100.090.140.190.130.22
Sn263644112832151416211712
Sb--0.150.420.030.100.04-0.04---
Cs-0.020.04---0.020.050.090.160.020.02
Ba---0.06-0.07------
Ta0.491.20.440.140.630.280.620.260.430.710.840.63
W0.07-0.10-0.07-0.06-0.030.020.030.04
Bi0.020.010.000.03-0.02-0.020.030.040.04-
Pb2.51.52.25.60.810.336.62.38.110107.2
Th0.01-0.010.030.000.000.00-0.01-0.000.01
U---------0.010.00-