Table 2

Representative microprobe analyses of garnet in mafic granulites

SampleTKL02-2TKL18-4MS02-3MS04-1MS07-3
MineralGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrt
Domaincoremantlerimcoremantlerimcoremantlerimcoremantlerimcoremantlerim
SiO2 (wt%)38.2038.0438.0538.9038.5838.6537.7237.4038.5837.5837.2438.2638.5838.7938.08
TiO20.110.130.150.100.070.110.050.090.030.070.110.020.050.100.00
Al2O321.0621.0020.4721.1320.8520.9721.4021.4320.3621.5821.4021.1820.9221.1721.11
Cr2O30.020.060.020.020.080.060.020.030.030.000.010.050.070.060.09
FeO25.5125.4527.1126.1626.8827.9525.7725.0825.8024.8524.9425.4925.2825.1626.52
MnO0.650.811.220.820.910.961.130.982.131.781.852.371.080.992.46
MgO6.766.465.266.075.864.526.287.445.886.616.386.346.556.455.41
CaO7.267.056.976.626.446.707.106.746.697.367.116.117.327.195.41
Na2O0.000.010.010.000.000.000.000.000.010.020.000.010.000.000.00
K2O0.000.000.000.000.000.000.000.000.030.000.010.000.010.000.00
Total99.5899.0199.2699.8199.6699.9399.4899.1999.5499.8599.0599.8399.8599.8999.07
O cations121212121212121212121212121212
Si (p.f.u.)2.9712.9803.0043.0303.0213.0372.9452.9093.0262.9152.9172.9832.9963.0113.012
Ti0.0060.0080.0090.0060.0040.0060.0030.0050.0020.0040.0060.0010.0030.0060.000
Al1.9311.9401.9051.9401.9251.9421.9701.9651.8831.9731.9761.9461.9161.9381.968
Cr0.0010.0040.0010.0010.0050.0040.0010.0020.0020.0000.0010.0030.0040.0030.005
Fe3+0.1130.0830.0700.0000.0190.0000.1340.2050.0650.1920.1770.0850.0830.0250.002
Fe2+1.5461.5851.7201.7041.7411.8371.5481.4251.6281.4201.4571.5771.5591.6081.752
Mn0.0430.0540.0820.0540.0600.0640.0750.0650.1420.1170.1230.1560.0710.0650.165
Mg0.7840.7540.6190.7040.6830.5300.7310.8620.6870.7640.7450.7370.7580.7460.637
Ca0.6050.5920.5900.5520.5400.5640.5940.5620.5620.6120.5970.5100.6090.5980.458
Na0.0000.0020.0020.0000.0000.0000.0000.0000.0020.0030.0000.0020.0000.0000.000
K0.0000.0000.0000.0000.0000.0000.0000.0000.0030.0000.0010.0000.0010.0000.000
XAlm0.520.530.570.570.580.610.530.490.540.490.500.530.520.530.58
XPyp0.260.250.210.230.230.180.250.300.230.260.250.250.250.250.21
XGrs0.200.200.200.180.180.190.200.190.190.210.200.170.200.200.15
XSps0.010.020.030.020.020.020.030.020.050.040.040.050.020.020.05
XMg0.340.320.260.290.280.220.320.380.300.350.340.320.330.320.27
SampleTKL02-2TKL18-4MS02-3MS04-1MS07-3
MineralGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrt
Domaincoremantlerimcoremantlerimcoremantlerimcoremantlerimcoremantlerim
SiO2 (wt%)38.2038.0438.0538.9038.5838.6537.7237.4038.5837.5837.2438.2638.5838.7938.08
TiO20.110.130.150.100.070.110.050.090.030.070.110.020.050.100.00
Al2O321.0621.0020.4721.1320.8520.9721.4021.4320.3621.5821.4021.1820.9221.1721.11
Cr2O30.020.060.020.020.080.060.020.030.030.000.010.050.070.060.09
FeO25.5125.4527.1126.1626.8827.9525.7725.0825.8024.8524.9425.4925.2825.1626.52
MnO0.650.811.220.820.910.961.130.982.131.781.852.371.080.992.46
MgO6.766.465.266.075.864.526.287.445.886.616.386.346.556.455.41
CaO7.267.056.976.626.446.707.106.746.697.367.116.117.327.195.41
Na2O0.000.010.010.000.000.000.000.000.010.020.000.010.000.000.00
K2O0.000.000.000.000.000.000.000.000.030.000.010.000.010.000.00
Total99.5899.0199.2699.8199.6699.9399.4899.1999.5499.8599.0599.8399.8599.8999.07
O cations121212121212121212121212121212
Si (p.f.u.)2.9712.9803.0043.0303.0213.0372.9452.9093.0262.9152.9172.9832.9963.0113.012
Ti0.0060.0080.0090.0060.0040.0060.0030.0050.0020.0040.0060.0010.0030.0060.000
Al1.9311.9401.9051.9401.9251.9421.9701.9651.8831.9731.9761.9461.9161.9381.968
Cr0.0010.0040.0010.0010.0050.0040.0010.0020.0020.0000.0010.0030.0040.0030.005
Fe3+0.1130.0830.0700.0000.0190.0000.1340.2050.0650.1920.1770.0850.0830.0250.002
Fe2+1.5461.5851.7201.7041.7411.8371.5481.4251.6281.4201.4571.5771.5591.6081.752
Mn0.0430.0540.0820.0540.0600.0640.0750.0650.1420.1170.1230.1560.0710.0650.165
Mg0.7840.7540.6190.7040.6830.5300.7310.8620.6870.7640.7450.7370.7580.7460.637
Ca0.6050.5920.5900.5520.5400.5640.5940.5620.5620.6120.5970.5100.6090.5980.458
Na0.0000.0020.0020.0000.0000.0000.0000.0000.0020.0030.0000.0020.0000.0000.000
K0.0000.0000.0000.0000.0000.0000.0000.0000.0030.0000.0010.0000.0010.0000.000
XAlm0.520.530.570.570.580.610.530.490.540.490.500.530.520.530.58
XPyp0.260.250.210.230.230.180.250.300.230.260.250.250.250.250.21
XGrs0.200.200.200.180.180.190.200.190.190.210.200.170.200.200.15
XSps0.010.020.030.020.020.020.030.020.050.040.040.050.020.020.05
XMg0.340.320.260.290.280.220.320.380.300.350.340.320.330.320.27

Total iron as FeO. XAlm = Fe2+/(Ca + Mg + Fe2+ + Mn). XPyp = Mg/(Ca + Mg + Fe2+ + Mn). XGrs = Ca/(Ca + Mg + Fe2+ + Mn). XSps = Mn/(Ca + Mg + Fe2+ + Mn). XMg = Mg/(Mg + Fe2+).

Table 2

Representative microprobe analyses of garnet in mafic granulites

SampleTKL02-2TKL18-4MS02-3MS04-1MS07-3
MineralGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrt
Domaincoremantlerimcoremantlerimcoremantlerimcoremantlerimcoremantlerim
SiO2 (wt%)38.2038.0438.0538.9038.5838.6537.7237.4038.5837.5837.2438.2638.5838.7938.08
TiO20.110.130.150.100.070.110.050.090.030.070.110.020.050.100.00
Al2O321.0621.0020.4721.1320.8520.9721.4021.4320.3621.5821.4021.1820.9221.1721.11
Cr2O30.020.060.020.020.080.060.020.030.030.000.010.050.070.060.09
FeO25.5125.4527.1126.1626.8827.9525.7725.0825.8024.8524.9425.4925.2825.1626.52
MnO0.650.811.220.820.910.961.130.982.131.781.852.371.080.992.46
MgO6.766.465.266.075.864.526.287.445.886.616.386.346.556.455.41
CaO7.267.056.976.626.446.707.106.746.697.367.116.117.327.195.41
Na2O0.000.010.010.000.000.000.000.000.010.020.000.010.000.000.00
K2O0.000.000.000.000.000.000.000.000.030.000.010.000.010.000.00
Total99.5899.0199.2699.8199.6699.9399.4899.1999.5499.8599.0599.8399.8599.8999.07
O cations121212121212121212121212121212
Si (p.f.u.)2.9712.9803.0043.0303.0213.0372.9452.9093.0262.9152.9172.9832.9963.0113.012
Ti0.0060.0080.0090.0060.0040.0060.0030.0050.0020.0040.0060.0010.0030.0060.000
Al1.9311.9401.9051.9401.9251.9421.9701.9651.8831.9731.9761.9461.9161.9381.968
Cr0.0010.0040.0010.0010.0050.0040.0010.0020.0020.0000.0010.0030.0040.0030.005
Fe3+0.1130.0830.0700.0000.0190.0000.1340.2050.0650.1920.1770.0850.0830.0250.002
Fe2+1.5461.5851.7201.7041.7411.8371.5481.4251.6281.4201.4571.5771.5591.6081.752
Mn0.0430.0540.0820.0540.0600.0640.0750.0650.1420.1170.1230.1560.0710.0650.165
Mg0.7840.7540.6190.7040.6830.5300.7310.8620.6870.7640.7450.7370.7580.7460.637
Ca0.6050.5920.5900.5520.5400.5640.5940.5620.5620.6120.5970.5100.6090.5980.458
Na0.0000.0020.0020.0000.0000.0000.0000.0000.0020.0030.0000.0020.0000.0000.000
K0.0000.0000.0000.0000.0000.0000.0000.0000.0030.0000.0010.0000.0010.0000.000
XAlm0.520.530.570.570.580.610.530.490.540.490.500.530.520.530.58
XPyp0.260.250.210.230.230.180.250.300.230.260.250.250.250.250.21
XGrs0.200.200.200.180.180.190.200.190.190.210.200.170.200.200.15
XSps0.010.020.030.020.020.020.030.020.050.040.040.050.020.020.05
XMg0.340.320.260.290.280.220.320.380.300.350.340.320.330.320.27
SampleTKL02-2TKL18-4MS02-3MS04-1MS07-3
MineralGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrtGrt
Domaincoremantlerimcoremantlerimcoremantlerimcoremantlerimcoremantlerim
SiO2 (wt%)38.2038.0438.0538.9038.5838.6537.7237.4038.5837.5837.2438.2638.5838.7938.08
TiO20.110.130.150.100.070.110.050.090.030.070.110.020.050.100.00
Al2O321.0621.0020.4721.1320.8520.9721.4021.4320.3621.5821.4021.1820.9221.1721.11
Cr2O30.020.060.020.020.080.060.020.030.030.000.010.050.070.060.09
FeO25.5125.4527.1126.1626.8827.9525.7725.0825.8024.8524.9425.4925.2825.1626.52
MnO0.650.811.220.820.910.961.130.982.131.781.852.371.080.992.46
MgO6.766.465.266.075.864.526.287.445.886.616.386.346.556.455.41
CaO7.267.056.976.626.446.707.106.746.697.367.116.117.327.195.41
Na2O0.000.010.010.000.000.000.000.000.010.020.000.010.000.000.00
K2O0.000.000.000.000.000.000.000.000.030.000.010.000.010.000.00
Total99.5899.0199.2699.8199.6699.9399.4899.1999.5499.8599.0599.8399.8599.8999.07
O cations121212121212121212121212121212
Si (p.f.u.)2.9712.9803.0043.0303.0213.0372.9452.9093.0262.9152.9172.9832.9963.0113.012
Ti0.0060.0080.0090.0060.0040.0060.0030.0050.0020.0040.0060.0010.0030.0060.000
Al1.9311.9401.9051.9401.9251.9421.9701.9651.8831.9731.9761.9461.9161.9381.968
Cr0.0010.0040.0010.0010.0050.0040.0010.0020.0020.0000.0010.0030.0040.0030.005
Fe3+0.1130.0830.0700.0000.0190.0000.1340.2050.0650.1920.1770.0850.0830.0250.002
Fe2+1.5461.5851.7201.7041.7411.8371.5481.4251.6281.4201.4571.5771.5591.6081.752
Mn0.0430.0540.0820.0540.0600.0640.0750.0650.1420.1170.1230.1560.0710.0650.165
Mg0.7840.7540.6190.7040.6830.5300.7310.8620.6870.7640.7450.7370.7580.7460.637
Ca0.6050.5920.5900.5520.5400.5640.5940.5620.5620.6120.5970.5100.6090.5980.458
Na0.0000.0020.0020.0000.0000.0000.0000.0000.0020.0030.0000.0020.0000.0000.000
K0.0000.0000.0000.0000.0000.0000.0000.0000.0030.0000.0010.0000.0010.0000.000
XAlm0.520.530.570.570.580.610.530.490.540.490.500.530.520.530.58
XPyp0.260.250.210.230.230.180.250.300.230.260.250.250.250.250.21
XGrs0.200.200.200.180.180.190.200.190.190.210.200.170.200.200.15
XSps0.010.020.030.020.020.020.030.020.050.040.040.050.020.020.05
XMg0.340.320.260.290.280.220.320.380.300.350.340.320.330.320.27

Total iron as FeO. XAlm = Fe2+/(Ca + Mg + Fe2+ + Mn). XPyp = Mg/(Ca + Mg + Fe2+ + Mn). XGrs = Ca/(Ca + Mg + Fe2+ + Mn). XSps = Mn/(Ca + Mg + Fe2+ + Mn). XMg = Mg/(Mg + Fe2+).

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