Representative microprobe analyses of amphibole and biotite in mafic granulites
Sample . | TKL02-2 . | TKL18-4 . | . | MS02-3 . | MS04-1 . | MS07-3 . | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mineral . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Bt . |
Texture | Matrix | Incl. | Matrix | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | ||||||||||
Domain | core | rim | core | rim | core | mantle | rim | core | rim | core | rim | ||||||||||||
SiO2 (wt%) | 39.80 | 39.87 | 40.17 | 39.75 | 39.60 | 39.61 | 40.86 | 41.06 | 41.13 | 41.20 | 41.97 | 36.37 | 40.52 | 40.94 | 40.01 | 40.83 | 41.02 | 36.41 | 40.78 | 40.64 | 41.06 | 40.61 | 38.54 |
TiO2 | 3.33 | 3.25 | 3.18 | 3.67 | 3.49 | 3.36 | 3.05 | 2.99 | 2.50 | 2.43 | 2.93 | 4.86 | 3.44 | 3.17 | 3.14 | 2.89 | 2.69 | 5.22 | 3.22 | 2.81 | 2.84 | 3.16 | 4.90 |
Al2O3 | 12.81 | 13.34 | 12.42 | 12.50 | 12.95 | 12.44 | 12.35 | 12.41 | 11.81 | 12.33 | 12.63 | 15.29 | 12.37 | 12.25 | 12.83 | 12.69 | 12.26 | 14.45 | 12.45 | 11.68 | 12.39 | 12.52 | 14.43 |
Cr2O3 | 0.06 | 0.03 | 0.03 | 0.00 | 0.09 | 0.05 | 0.04 | 0.03 | 0.07 | 0.16 | 0.09 | 0.11 | 0.02 | 0.06 | 0.16 | 0.14 | 0.07 | 0.19 | 0.16 | 0.10 | 0.19 | 0.07 | 0.05 |
FeO | 17.16 | 16.80 | 16.20 | 19.07 | 18.44 | 17.42 | 17.66 | 17.38 | 17.21 | 16.60 | 14.87 | 16.87 | 16.51 | 15.94 | 17.43 | 16.57 | 16.91 | 17.73 | 17.01 | 18.21 | 17.45 | 14.80 | 15.63 |
MnO | 0.11 | 0.08 | 0.05 | 0.09 | 0.14 | 0.09 | 0.26 | 0.23 | 0.18 | 0.21 | 0.19 | 0.03 | 0.17 | 0.14 | 0.20 | 0.19 | 0.12 | 0.08 | 0.14 | 0.13 | 0.10 | 0.10 | 0.06 |
MgO | 8.67 | 9.26 | 9.98 | 8.10 | 7.80 | 9.29 | 9.49 | 9.53 | 10.14 | 9.71 | 10.95 | 12.21 | 9.59 | 9.86 | 9.01 | 9.80 | 9.84 | 11.98 | 8.72 | 8.97 | 8.61 | 10.86 | 12.27 |
CaO | 11.52 | 10.89 | 11.26 | 10.49 | 11.61 | 11.20 | 10.81 | 11.02 | 11.21 | 11.00 | 11.02 | 0.04 | 11.50 | 11.18 | 11.33 | 11.22 | 11.25 | 0.00 | 11.30 | 11.38 | 11.21 | 12.02 | 0.00 |
Na2O | 1.91 | 2.08 | 1.79 | 2.47 | 2.47 | 2.50 | 2.25 | 2.03 | 2.07 | 1.79 | 2.07 | 0.01 | 1.74 | 1.63 | 1.82 | 1.68 | 1.79 | 0.10 | 1.47 | 1.49 | 1.54 | 1.71 | 0.05 |
K2O | 1.86 | 1.81 | 2.12 | 1.21 | 1.05 | 1.23 | 1.17 | 1.29 | 1.27 | 1.63 | 1.12 | 9.84 | 2.03 | 1.87 | 1.87 | 1.97 | 1.85 | 9.66 | 2.20 | 2.21 | 2.08 | 1.57 | 9.28 |
Total | 97.23 | 97.41 | 97.21 | 97.35 | 97.64 | 97.00 | 97.94 | 97.97 | 97.59 | 97.06 | 97.85 | 95.64 | 97.88 | 97.04 | 97.80 | 97.97 | 97.80 | 95.83 | 97.45 | 97.62 | 97.47 | 97.42 | 95.21 |
O cations | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 11 |
Si (p.f.u.) | 6.099 | 6.050 | 6.111 | 6.083 | 6.067 | 6.054 | 6.152 | 6.175 | 6.208 | 6.241 | 6.227 | 2.742 | 6.137 | 6.208 | 6.080 | 6.148 | 6.193 | 2.753 | 6.214 | 6.211 | 6.253 | 6.117 | 2.876 |
Ti | 0.384 | 0.371 | 0.364 | 0.422 | 0.402 | 0.386 | 0.345 | 0.338 | 0.284 | 0.277 | 0.327 | 0.276 | 0.392 | 0.362 | 0.359 | 0.327 | 0.305 | 0.297 | 0.369 | 0.323 | 0.326 | 0.358 | 0.275 |
Al | 2.314 | 2.387 | 2.228 | 2.255 | 2.339 | 2.241 | 2.192 | 2.200 | 2.102 | 2.202 | 2.209 | 1.359 | 2.209 | 2.190 | 2.299 | 2.253 | 2.182 | 1.288 | 2.237 | 2.104 | 2.224 | 2.224 | 1.269 |
Cr | 0.007 | 0.004 | 0.003 | 0.000 | 0.011 | 0.006 | 0.005 | 0.004 | 0.008 | 0.019 | 0.011 | 0.007 | 0.002 | 0.007 | 0.019 | 0.017 | 0.008 | 0.011 | 0.019 | 0.013 | 0.023 | 0.009 | 0.003 |
Fe3+ | 0.000 | 0.168 | 0.130 | 0.208 | 0.000 | 0.141 | 0.280 | 0.241 | 0.274 | 0.212 | 0.229 | 0.000 | 0.060 | 0.121 | 0.137 | 0.186 | 0.187 | 0.000 | 0.016 | 0.137 | 0.051 | 0.086 | 0.000 |
Fe2+ | 2.199 | 1.964 | 1.930 | 2.233 | 2.363 | 2.085 | 1.944 | 1.945 | 1.899 | 1.891 | 1.617 | 1.064 | 2.030 | 1.900 | 2.078 | 1.900 | 1.949 | 1.121 | 2.151 | 2.191 | 2.171 | 1.779 | 0.976 |
Mn | 0.014 | 0.010 | 0.007 | 0.012 | 0.018 | 0.012 | 0.033 | 0.029 | 0.023 | 0.027 | 0.024 | 0.002 | 0.022 | 0.018 | 0.026 | 0.024 | 0.015 | 0.005 | 0.017 | 0.017 | 0.012 | 0.012 | 0.004 |
Mg | 1.980 | 2.094 | 2.263 | 1.847 | 1.781 | 2.115 | 2.129 | 2.136 | 2.281 | 2.192 | 2.421 | 1.372 | 2.165 | 2.228 | 2.041 | 2.199 | 2.214 | 1.350 | 1.980 | 2.044 | 1.954 | 2.439 | 1.365 |
Ca | 1.892 | 1.771 | 1.836 | 1.720 | 1.906 | 1.835 | 1.744 | 1.776 | 1.813 | 1.785 | 1.752 | 0.003 | 1.866 | 1.817 | 1.845 | 1.810 | 1.820 | 0.000 | 1.844 | 1.865 | 1.829 | 1.940 | 0.000 |
Na | 0.568 | 0.612 | 0.529 | 0.733 | 0.734 | 0.742 | 0.657 | 0.592 | 0.606 | 0.526 | 0.596 | 0.001 | 0.511 | 0.479 | 0.536 | 0.490 | 0.524 | 0.015 | 0.435 | 0.441 | 0.454 | 0.500 | 0.008 |
K | 0.364 | 0.350 | 0.412 | 0.236 | 0.205 | 0.240 | 0.225 | 0.248 | 0.245 | 0.315 | 0.212 | 0.947 | 0.392 | 0.362 | 0.363 | 0.378 | 0.356 | 0.932 | 0.428 | 0.431 | 0.404 | 0.301 | 0.883 |
XMg | 0.47 | 0.52 | 0.54 | 0.45 | 0.43 | 0.50 | 0.52 | 0.52 | 0.55 | 0.54 | 0.60 | 0.56 | 0.52 | 0.54 | 0.50 | 0.54 | 0.53 | 0.55 | 0.48 | 0.48 | 0.47 | 0.58 | 0.58 |
Sample . | TKL02-2 . | TKL18-4 . | . | MS02-3 . | MS04-1 . | MS07-3 . | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mineral . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Bt . |
Texture | Matrix | Incl. | Matrix | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | ||||||||||
Domain | core | rim | core | rim | core | mantle | rim | core | rim | core | rim | ||||||||||||
SiO2 (wt%) | 39.80 | 39.87 | 40.17 | 39.75 | 39.60 | 39.61 | 40.86 | 41.06 | 41.13 | 41.20 | 41.97 | 36.37 | 40.52 | 40.94 | 40.01 | 40.83 | 41.02 | 36.41 | 40.78 | 40.64 | 41.06 | 40.61 | 38.54 |
TiO2 | 3.33 | 3.25 | 3.18 | 3.67 | 3.49 | 3.36 | 3.05 | 2.99 | 2.50 | 2.43 | 2.93 | 4.86 | 3.44 | 3.17 | 3.14 | 2.89 | 2.69 | 5.22 | 3.22 | 2.81 | 2.84 | 3.16 | 4.90 |
Al2O3 | 12.81 | 13.34 | 12.42 | 12.50 | 12.95 | 12.44 | 12.35 | 12.41 | 11.81 | 12.33 | 12.63 | 15.29 | 12.37 | 12.25 | 12.83 | 12.69 | 12.26 | 14.45 | 12.45 | 11.68 | 12.39 | 12.52 | 14.43 |
Cr2O3 | 0.06 | 0.03 | 0.03 | 0.00 | 0.09 | 0.05 | 0.04 | 0.03 | 0.07 | 0.16 | 0.09 | 0.11 | 0.02 | 0.06 | 0.16 | 0.14 | 0.07 | 0.19 | 0.16 | 0.10 | 0.19 | 0.07 | 0.05 |
FeO | 17.16 | 16.80 | 16.20 | 19.07 | 18.44 | 17.42 | 17.66 | 17.38 | 17.21 | 16.60 | 14.87 | 16.87 | 16.51 | 15.94 | 17.43 | 16.57 | 16.91 | 17.73 | 17.01 | 18.21 | 17.45 | 14.80 | 15.63 |
MnO | 0.11 | 0.08 | 0.05 | 0.09 | 0.14 | 0.09 | 0.26 | 0.23 | 0.18 | 0.21 | 0.19 | 0.03 | 0.17 | 0.14 | 0.20 | 0.19 | 0.12 | 0.08 | 0.14 | 0.13 | 0.10 | 0.10 | 0.06 |
MgO | 8.67 | 9.26 | 9.98 | 8.10 | 7.80 | 9.29 | 9.49 | 9.53 | 10.14 | 9.71 | 10.95 | 12.21 | 9.59 | 9.86 | 9.01 | 9.80 | 9.84 | 11.98 | 8.72 | 8.97 | 8.61 | 10.86 | 12.27 |
CaO | 11.52 | 10.89 | 11.26 | 10.49 | 11.61 | 11.20 | 10.81 | 11.02 | 11.21 | 11.00 | 11.02 | 0.04 | 11.50 | 11.18 | 11.33 | 11.22 | 11.25 | 0.00 | 11.30 | 11.38 | 11.21 | 12.02 | 0.00 |
Na2O | 1.91 | 2.08 | 1.79 | 2.47 | 2.47 | 2.50 | 2.25 | 2.03 | 2.07 | 1.79 | 2.07 | 0.01 | 1.74 | 1.63 | 1.82 | 1.68 | 1.79 | 0.10 | 1.47 | 1.49 | 1.54 | 1.71 | 0.05 |
K2O | 1.86 | 1.81 | 2.12 | 1.21 | 1.05 | 1.23 | 1.17 | 1.29 | 1.27 | 1.63 | 1.12 | 9.84 | 2.03 | 1.87 | 1.87 | 1.97 | 1.85 | 9.66 | 2.20 | 2.21 | 2.08 | 1.57 | 9.28 |
Total | 97.23 | 97.41 | 97.21 | 97.35 | 97.64 | 97.00 | 97.94 | 97.97 | 97.59 | 97.06 | 97.85 | 95.64 | 97.88 | 97.04 | 97.80 | 97.97 | 97.80 | 95.83 | 97.45 | 97.62 | 97.47 | 97.42 | 95.21 |
O cations | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 11 |
Si (p.f.u.) | 6.099 | 6.050 | 6.111 | 6.083 | 6.067 | 6.054 | 6.152 | 6.175 | 6.208 | 6.241 | 6.227 | 2.742 | 6.137 | 6.208 | 6.080 | 6.148 | 6.193 | 2.753 | 6.214 | 6.211 | 6.253 | 6.117 | 2.876 |
Ti | 0.384 | 0.371 | 0.364 | 0.422 | 0.402 | 0.386 | 0.345 | 0.338 | 0.284 | 0.277 | 0.327 | 0.276 | 0.392 | 0.362 | 0.359 | 0.327 | 0.305 | 0.297 | 0.369 | 0.323 | 0.326 | 0.358 | 0.275 |
Al | 2.314 | 2.387 | 2.228 | 2.255 | 2.339 | 2.241 | 2.192 | 2.200 | 2.102 | 2.202 | 2.209 | 1.359 | 2.209 | 2.190 | 2.299 | 2.253 | 2.182 | 1.288 | 2.237 | 2.104 | 2.224 | 2.224 | 1.269 |
Cr | 0.007 | 0.004 | 0.003 | 0.000 | 0.011 | 0.006 | 0.005 | 0.004 | 0.008 | 0.019 | 0.011 | 0.007 | 0.002 | 0.007 | 0.019 | 0.017 | 0.008 | 0.011 | 0.019 | 0.013 | 0.023 | 0.009 | 0.003 |
Fe3+ | 0.000 | 0.168 | 0.130 | 0.208 | 0.000 | 0.141 | 0.280 | 0.241 | 0.274 | 0.212 | 0.229 | 0.000 | 0.060 | 0.121 | 0.137 | 0.186 | 0.187 | 0.000 | 0.016 | 0.137 | 0.051 | 0.086 | 0.000 |
Fe2+ | 2.199 | 1.964 | 1.930 | 2.233 | 2.363 | 2.085 | 1.944 | 1.945 | 1.899 | 1.891 | 1.617 | 1.064 | 2.030 | 1.900 | 2.078 | 1.900 | 1.949 | 1.121 | 2.151 | 2.191 | 2.171 | 1.779 | 0.976 |
Mn | 0.014 | 0.010 | 0.007 | 0.012 | 0.018 | 0.012 | 0.033 | 0.029 | 0.023 | 0.027 | 0.024 | 0.002 | 0.022 | 0.018 | 0.026 | 0.024 | 0.015 | 0.005 | 0.017 | 0.017 | 0.012 | 0.012 | 0.004 |
Mg | 1.980 | 2.094 | 2.263 | 1.847 | 1.781 | 2.115 | 2.129 | 2.136 | 2.281 | 2.192 | 2.421 | 1.372 | 2.165 | 2.228 | 2.041 | 2.199 | 2.214 | 1.350 | 1.980 | 2.044 | 1.954 | 2.439 | 1.365 |
Ca | 1.892 | 1.771 | 1.836 | 1.720 | 1.906 | 1.835 | 1.744 | 1.776 | 1.813 | 1.785 | 1.752 | 0.003 | 1.866 | 1.817 | 1.845 | 1.810 | 1.820 | 0.000 | 1.844 | 1.865 | 1.829 | 1.940 | 0.000 |
Na | 0.568 | 0.612 | 0.529 | 0.733 | 0.734 | 0.742 | 0.657 | 0.592 | 0.606 | 0.526 | 0.596 | 0.001 | 0.511 | 0.479 | 0.536 | 0.490 | 0.524 | 0.015 | 0.435 | 0.441 | 0.454 | 0.500 | 0.008 |
K | 0.364 | 0.350 | 0.412 | 0.236 | 0.205 | 0.240 | 0.225 | 0.248 | 0.245 | 0.315 | 0.212 | 0.947 | 0.392 | 0.362 | 0.363 | 0.378 | 0.356 | 0.932 | 0.428 | 0.431 | 0.404 | 0.301 | 0.883 |
XMg | 0.47 | 0.52 | 0.54 | 0.45 | 0.43 | 0.50 | 0.52 | 0.52 | 0.55 | 0.54 | 0.60 | 0.56 | 0.52 | 0.54 | 0.50 | 0.54 | 0.53 | 0.55 | 0.48 | 0.48 | 0.47 | 0.58 | 0.58 |
Total iron as FeO. XMg = Mg/(Mg + Fe2+). Incl., inclusion; Sympl., symplectite.
Representative microprobe analyses of amphibole and biotite in mafic granulites
Sample . | TKL02-2 . | TKL18-4 . | . | MS02-3 . | MS04-1 . | MS07-3 . | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mineral . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Bt . |
Texture | Matrix | Incl. | Matrix | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | ||||||||||
Domain | core | rim | core | rim | core | mantle | rim | core | rim | core | rim | ||||||||||||
SiO2 (wt%) | 39.80 | 39.87 | 40.17 | 39.75 | 39.60 | 39.61 | 40.86 | 41.06 | 41.13 | 41.20 | 41.97 | 36.37 | 40.52 | 40.94 | 40.01 | 40.83 | 41.02 | 36.41 | 40.78 | 40.64 | 41.06 | 40.61 | 38.54 |
TiO2 | 3.33 | 3.25 | 3.18 | 3.67 | 3.49 | 3.36 | 3.05 | 2.99 | 2.50 | 2.43 | 2.93 | 4.86 | 3.44 | 3.17 | 3.14 | 2.89 | 2.69 | 5.22 | 3.22 | 2.81 | 2.84 | 3.16 | 4.90 |
Al2O3 | 12.81 | 13.34 | 12.42 | 12.50 | 12.95 | 12.44 | 12.35 | 12.41 | 11.81 | 12.33 | 12.63 | 15.29 | 12.37 | 12.25 | 12.83 | 12.69 | 12.26 | 14.45 | 12.45 | 11.68 | 12.39 | 12.52 | 14.43 |
Cr2O3 | 0.06 | 0.03 | 0.03 | 0.00 | 0.09 | 0.05 | 0.04 | 0.03 | 0.07 | 0.16 | 0.09 | 0.11 | 0.02 | 0.06 | 0.16 | 0.14 | 0.07 | 0.19 | 0.16 | 0.10 | 0.19 | 0.07 | 0.05 |
FeO | 17.16 | 16.80 | 16.20 | 19.07 | 18.44 | 17.42 | 17.66 | 17.38 | 17.21 | 16.60 | 14.87 | 16.87 | 16.51 | 15.94 | 17.43 | 16.57 | 16.91 | 17.73 | 17.01 | 18.21 | 17.45 | 14.80 | 15.63 |
MnO | 0.11 | 0.08 | 0.05 | 0.09 | 0.14 | 0.09 | 0.26 | 0.23 | 0.18 | 0.21 | 0.19 | 0.03 | 0.17 | 0.14 | 0.20 | 0.19 | 0.12 | 0.08 | 0.14 | 0.13 | 0.10 | 0.10 | 0.06 |
MgO | 8.67 | 9.26 | 9.98 | 8.10 | 7.80 | 9.29 | 9.49 | 9.53 | 10.14 | 9.71 | 10.95 | 12.21 | 9.59 | 9.86 | 9.01 | 9.80 | 9.84 | 11.98 | 8.72 | 8.97 | 8.61 | 10.86 | 12.27 |
CaO | 11.52 | 10.89 | 11.26 | 10.49 | 11.61 | 11.20 | 10.81 | 11.02 | 11.21 | 11.00 | 11.02 | 0.04 | 11.50 | 11.18 | 11.33 | 11.22 | 11.25 | 0.00 | 11.30 | 11.38 | 11.21 | 12.02 | 0.00 |
Na2O | 1.91 | 2.08 | 1.79 | 2.47 | 2.47 | 2.50 | 2.25 | 2.03 | 2.07 | 1.79 | 2.07 | 0.01 | 1.74 | 1.63 | 1.82 | 1.68 | 1.79 | 0.10 | 1.47 | 1.49 | 1.54 | 1.71 | 0.05 |
K2O | 1.86 | 1.81 | 2.12 | 1.21 | 1.05 | 1.23 | 1.17 | 1.29 | 1.27 | 1.63 | 1.12 | 9.84 | 2.03 | 1.87 | 1.87 | 1.97 | 1.85 | 9.66 | 2.20 | 2.21 | 2.08 | 1.57 | 9.28 |
Total | 97.23 | 97.41 | 97.21 | 97.35 | 97.64 | 97.00 | 97.94 | 97.97 | 97.59 | 97.06 | 97.85 | 95.64 | 97.88 | 97.04 | 97.80 | 97.97 | 97.80 | 95.83 | 97.45 | 97.62 | 97.47 | 97.42 | 95.21 |
O cations | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 11 |
Si (p.f.u.) | 6.099 | 6.050 | 6.111 | 6.083 | 6.067 | 6.054 | 6.152 | 6.175 | 6.208 | 6.241 | 6.227 | 2.742 | 6.137 | 6.208 | 6.080 | 6.148 | 6.193 | 2.753 | 6.214 | 6.211 | 6.253 | 6.117 | 2.876 |
Ti | 0.384 | 0.371 | 0.364 | 0.422 | 0.402 | 0.386 | 0.345 | 0.338 | 0.284 | 0.277 | 0.327 | 0.276 | 0.392 | 0.362 | 0.359 | 0.327 | 0.305 | 0.297 | 0.369 | 0.323 | 0.326 | 0.358 | 0.275 |
Al | 2.314 | 2.387 | 2.228 | 2.255 | 2.339 | 2.241 | 2.192 | 2.200 | 2.102 | 2.202 | 2.209 | 1.359 | 2.209 | 2.190 | 2.299 | 2.253 | 2.182 | 1.288 | 2.237 | 2.104 | 2.224 | 2.224 | 1.269 |
Cr | 0.007 | 0.004 | 0.003 | 0.000 | 0.011 | 0.006 | 0.005 | 0.004 | 0.008 | 0.019 | 0.011 | 0.007 | 0.002 | 0.007 | 0.019 | 0.017 | 0.008 | 0.011 | 0.019 | 0.013 | 0.023 | 0.009 | 0.003 |
Fe3+ | 0.000 | 0.168 | 0.130 | 0.208 | 0.000 | 0.141 | 0.280 | 0.241 | 0.274 | 0.212 | 0.229 | 0.000 | 0.060 | 0.121 | 0.137 | 0.186 | 0.187 | 0.000 | 0.016 | 0.137 | 0.051 | 0.086 | 0.000 |
Fe2+ | 2.199 | 1.964 | 1.930 | 2.233 | 2.363 | 2.085 | 1.944 | 1.945 | 1.899 | 1.891 | 1.617 | 1.064 | 2.030 | 1.900 | 2.078 | 1.900 | 1.949 | 1.121 | 2.151 | 2.191 | 2.171 | 1.779 | 0.976 |
Mn | 0.014 | 0.010 | 0.007 | 0.012 | 0.018 | 0.012 | 0.033 | 0.029 | 0.023 | 0.027 | 0.024 | 0.002 | 0.022 | 0.018 | 0.026 | 0.024 | 0.015 | 0.005 | 0.017 | 0.017 | 0.012 | 0.012 | 0.004 |
Mg | 1.980 | 2.094 | 2.263 | 1.847 | 1.781 | 2.115 | 2.129 | 2.136 | 2.281 | 2.192 | 2.421 | 1.372 | 2.165 | 2.228 | 2.041 | 2.199 | 2.214 | 1.350 | 1.980 | 2.044 | 1.954 | 2.439 | 1.365 |
Ca | 1.892 | 1.771 | 1.836 | 1.720 | 1.906 | 1.835 | 1.744 | 1.776 | 1.813 | 1.785 | 1.752 | 0.003 | 1.866 | 1.817 | 1.845 | 1.810 | 1.820 | 0.000 | 1.844 | 1.865 | 1.829 | 1.940 | 0.000 |
Na | 0.568 | 0.612 | 0.529 | 0.733 | 0.734 | 0.742 | 0.657 | 0.592 | 0.606 | 0.526 | 0.596 | 0.001 | 0.511 | 0.479 | 0.536 | 0.490 | 0.524 | 0.015 | 0.435 | 0.441 | 0.454 | 0.500 | 0.008 |
K | 0.364 | 0.350 | 0.412 | 0.236 | 0.205 | 0.240 | 0.225 | 0.248 | 0.245 | 0.315 | 0.212 | 0.947 | 0.392 | 0.362 | 0.363 | 0.378 | 0.356 | 0.932 | 0.428 | 0.431 | 0.404 | 0.301 | 0.883 |
XMg | 0.47 | 0.52 | 0.54 | 0.45 | 0.43 | 0.50 | 0.52 | 0.52 | 0.55 | 0.54 | 0.60 | 0.56 | 0.52 | 0.54 | 0.50 | 0.54 | 0.53 | 0.55 | 0.48 | 0.48 | 0.47 | 0.58 | 0.58 |
Sample . | TKL02-2 . | TKL18-4 . | . | MS02-3 . | MS04-1 . | MS07-3 . | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mineral . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Amp . | Bt . | Amp . | Amp . | Amp . | Amp . | Bt . |
Texture | Matrix | Incl. | Matrix | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | Matrix | Sympl. | Incl. | ||||||||||
Domain | core | rim | core | rim | core | mantle | rim | core | rim | core | rim | ||||||||||||
SiO2 (wt%) | 39.80 | 39.87 | 40.17 | 39.75 | 39.60 | 39.61 | 40.86 | 41.06 | 41.13 | 41.20 | 41.97 | 36.37 | 40.52 | 40.94 | 40.01 | 40.83 | 41.02 | 36.41 | 40.78 | 40.64 | 41.06 | 40.61 | 38.54 |
TiO2 | 3.33 | 3.25 | 3.18 | 3.67 | 3.49 | 3.36 | 3.05 | 2.99 | 2.50 | 2.43 | 2.93 | 4.86 | 3.44 | 3.17 | 3.14 | 2.89 | 2.69 | 5.22 | 3.22 | 2.81 | 2.84 | 3.16 | 4.90 |
Al2O3 | 12.81 | 13.34 | 12.42 | 12.50 | 12.95 | 12.44 | 12.35 | 12.41 | 11.81 | 12.33 | 12.63 | 15.29 | 12.37 | 12.25 | 12.83 | 12.69 | 12.26 | 14.45 | 12.45 | 11.68 | 12.39 | 12.52 | 14.43 |
Cr2O3 | 0.06 | 0.03 | 0.03 | 0.00 | 0.09 | 0.05 | 0.04 | 0.03 | 0.07 | 0.16 | 0.09 | 0.11 | 0.02 | 0.06 | 0.16 | 0.14 | 0.07 | 0.19 | 0.16 | 0.10 | 0.19 | 0.07 | 0.05 |
FeO | 17.16 | 16.80 | 16.20 | 19.07 | 18.44 | 17.42 | 17.66 | 17.38 | 17.21 | 16.60 | 14.87 | 16.87 | 16.51 | 15.94 | 17.43 | 16.57 | 16.91 | 17.73 | 17.01 | 18.21 | 17.45 | 14.80 | 15.63 |
MnO | 0.11 | 0.08 | 0.05 | 0.09 | 0.14 | 0.09 | 0.26 | 0.23 | 0.18 | 0.21 | 0.19 | 0.03 | 0.17 | 0.14 | 0.20 | 0.19 | 0.12 | 0.08 | 0.14 | 0.13 | 0.10 | 0.10 | 0.06 |
MgO | 8.67 | 9.26 | 9.98 | 8.10 | 7.80 | 9.29 | 9.49 | 9.53 | 10.14 | 9.71 | 10.95 | 12.21 | 9.59 | 9.86 | 9.01 | 9.80 | 9.84 | 11.98 | 8.72 | 8.97 | 8.61 | 10.86 | 12.27 |
CaO | 11.52 | 10.89 | 11.26 | 10.49 | 11.61 | 11.20 | 10.81 | 11.02 | 11.21 | 11.00 | 11.02 | 0.04 | 11.50 | 11.18 | 11.33 | 11.22 | 11.25 | 0.00 | 11.30 | 11.38 | 11.21 | 12.02 | 0.00 |
Na2O | 1.91 | 2.08 | 1.79 | 2.47 | 2.47 | 2.50 | 2.25 | 2.03 | 2.07 | 1.79 | 2.07 | 0.01 | 1.74 | 1.63 | 1.82 | 1.68 | 1.79 | 0.10 | 1.47 | 1.49 | 1.54 | 1.71 | 0.05 |
K2O | 1.86 | 1.81 | 2.12 | 1.21 | 1.05 | 1.23 | 1.17 | 1.29 | 1.27 | 1.63 | 1.12 | 9.84 | 2.03 | 1.87 | 1.87 | 1.97 | 1.85 | 9.66 | 2.20 | 2.21 | 2.08 | 1.57 | 9.28 |
Total | 97.23 | 97.41 | 97.21 | 97.35 | 97.64 | 97.00 | 97.94 | 97.97 | 97.59 | 97.06 | 97.85 | 95.64 | 97.88 | 97.04 | 97.80 | 97.97 | 97.80 | 95.83 | 97.45 | 97.62 | 97.47 | 97.42 | 95.21 |
O cations | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 23 | 11 | 23 | 23 | 23 | 23 | 11 |
Si (p.f.u.) | 6.099 | 6.050 | 6.111 | 6.083 | 6.067 | 6.054 | 6.152 | 6.175 | 6.208 | 6.241 | 6.227 | 2.742 | 6.137 | 6.208 | 6.080 | 6.148 | 6.193 | 2.753 | 6.214 | 6.211 | 6.253 | 6.117 | 2.876 |
Ti | 0.384 | 0.371 | 0.364 | 0.422 | 0.402 | 0.386 | 0.345 | 0.338 | 0.284 | 0.277 | 0.327 | 0.276 | 0.392 | 0.362 | 0.359 | 0.327 | 0.305 | 0.297 | 0.369 | 0.323 | 0.326 | 0.358 | 0.275 |
Al | 2.314 | 2.387 | 2.228 | 2.255 | 2.339 | 2.241 | 2.192 | 2.200 | 2.102 | 2.202 | 2.209 | 1.359 | 2.209 | 2.190 | 2.299 | 2.253 | 2.182 | 1.288 | 2.237 | 2.104 | 2.224 | 2.224 | 1.269 |
Cr | 0.007 | 0.004 | 0.003 | 0.000 | 0.011 | 0.006 | 0.005 | 0.004 | 0.008 | 0.019 | 0.011 | 0.007 | 0.002 | 0.007 | 0.019 | 0.017 | 0.008 | 0.011 | 0.019 | 0.013 | 0.023 | 0.009 | 0.003 |
Fe3+ | 0.000 | 0.168 | 0.130 | 0.208 | 0.000 | 0.141 | 0.280 | 0.241 | 0.274 | 0.212 | 0.229 | 0.000 | 0.060 | 0.121 | 0.137 | 0.186 | 0.187 | 0.000 | 0.016 | 0.137 | 0.051 | 0.086 | 0.000 |
Fe2+ | 2.199 | 1.964 | 1.930 | 2.233 | 2.363 | 2.085 | 1.944 | 1.945 | 1.899 | 1.891 | 1.617 | 1.064 | 2.030 | 1.900 | 2.078 | 1.900 | 1.949 | 1.121 | 2.151 | 2.191 | 2.171 | 1.779 | 0.976 |
Mn | 0.014 | 0.010 | 0.007 | 0.012 | 0.018 | 0.012 | 0.033 | 0.029 | 0.023 | 0.027 | 0.024 | 0.002 | 0.022 | 0.018 | 0.026 | 0.024 | 0.015 | 0.005 | 0.017 | 0.017 | 0.012 | 0.012 | 0.004 |
Mg | 1.980 | 2.094 | 2.263 | 1.847 | 1.781 | 2.115 | 2.129 | 2.136 | 2.281 | 2.192 | 2.421 | 1.372 | 2.165 | 2.228 | 2.041 | 2.199 | 2.214 | 1.350 | 1.980 | 2.044 | 1.954 | 2.439 | 1.365 |
Ca | 1.892 | 1.771 | 1.836 | 1.720 | 1.906 | 1.835 | 1.744 | 1.776 | 1.813 | 1.785 | 1.752 | 0.003 | 1.866 | 1.817 | 1.845 | 1.810 | 1.820 | 0.000 | 1.844 | 1.865 | 1.829 | 1.940 | 0.000 |
Na | 0.568 | 0.612 | 0.529 | 0.733 | 0.734 | 0.742 | 0.657 | 0.592 | 0.606 | 0.526 | 0.596 | 0.001 | 0.511 | 0.479 | 0.536 | 0.490 | 0.524 | 0.015 | 0.435 | 0.441 | 0.454 | 0.500 | 0.008 |
K | 0.364 | 0.350 | 0.412 | 0.236 | 0.205 | 0.240 | 0.225 | 0.248 | 0.245 | 0.315 | 0.212 | 0.947 | 0.392 | 0.362 | 0.363 | 0.378 | 0.356 | 0.932 | 0.428 | 0.431 | 0.404 | 0.301 | 0.883 |
XMg | 0.47 | 0.52 | 0.54 | 0.45 | 0.43 | 0.50 | 0.52 | 0.52 | 0.55 | 0.54 | 0.60 | 0.56 | 0.52 | 0.54 | 0.50 | 0.54 | 0.53 | 0.55 | 0.48 | 0.48 | 0.47 | 0.58 | 0.58 |
Total iron as FeO. XMg = Mg/(Mg + Fe2+). Incl., inclusion; Sympl., symplectite.
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