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Table 3 microprobe analyses (cations p.f.u.) of garnet (Grt), biotite (Bt), muscovite (Ms) and plagioclase (Pl) in micaschists and gneisses from the Schrankogel complex in the Austroalpine Oetztal-Stubai basement, Alpeiner Valley around Franz-Senn-Hütte, normalized to 12 oxygen (garnet), 11 oxygen (biotite, muscovite) and 8 oxygen (plagioclase). Almandine (Alm), anorthite (An), grossular (Grs), pyrope (Prp), spessartine (Sps) contents in mole%*100. Mineral analyses combined for geothermobarometric calculations are as follows: Sample RZ33: Grt31c–Bt119–Pl73; Grt4r–Bt108–Pl170/Pl73: Sample RZ42: Grt245c–Bt161–Ms187–Pl171; Grt104c–Bt161–Ms187–Pl171; Grt84r–Bt247–Ms187–Pl203; Grt77r–Bt247–Ms187–Pl203. c core, r rim

From: Electron microprobe petrochronology of monazite-bearing garnet micaschists in the Oetztal-Stubai Complex (Alpeiner Valley, Stubai)

Grt RZ33 RZ33 RZ42 RZ42 RZ42 RZ42
31c 4r 245c 104c 84r 77r
Si 3.013 2.972 2.997 3.004 3.003 3.000
Al 1.922 1.969 1.979 1.987 1.978 1.970
Fe 1.876 2.165 2.132 2.232 2.248 2.251
Mn 0.404 0.013 0.266 0.090 0.056 0.267
Mg 0.148 0.604 0.318 0.459 0.618 0.432
Ca 0.642 0.310 0.305 0.216 0.104 0.086
Tot 8.005 8.033 7.997 7.989 8.007 8.007
Alm 61.1 70.0 70.6 74.5 74.3 74.2
Prp 4.8 19.5 10.5 15.3 20.4 14.2
Sps 13.2 0.4 8.8 3.0 1.9 8.8
Grs 20.9 10.0 10.1 7.2 3.4 2.8
XMg 0.048 0.195 0.105 0.153 0.204 0.142
XCa 0.209 0.100 0.101 0.072 0.034 0.028
  Bt119 Bt108 Bt161 Ms187 Bt247 Ms187
Si 2.727 2.737 2.636 3.152 2.654 3.152
IVAl 1.273 1.263 1.364 0.848 1.346 0.848
VIAl 0.349 0.368 0.419 1.821 0.387 1.821
Ti 0.095 0.090 0.045 0.008 0.095 0.008
Fe 1.261 1.183 1.155 0.092 1.229 0.092
Mn 0.003 0.003 0.005 0.001 0.005 0.001
Mg 1.186 1.240 1.443 0.096 1.255 0.096
Ca 0.000 0.000 0.002 0.001 0.001 0.001
Na 0.024 0.028 0.027 0.131 0.030 0.131
K 0.922 0.919 0.692 0.839 0.793 0.839
Tot 7.840 7.831 7.787 6.990 7.796 6.890
XMg 0.48 0.51 0.56 0.51 0.51 0.49
Pl 73 76 171 173 203 204
Si 2.859 2.784 2.847 2.842 2.779 2.805
Al 1.129 1.203 1.150 1.152 1.220 1.190
Ca 0.153 0.226 0.152 0.163 0.222 0.205
Na 0.849 0.788 0.846 0.846 0.762 0.798
K 0.013 0.002 0.008 0.002 0.013 0.004
Tot 5.006 5.008 5.003 5.005 4.996 5.001
An 15.0 22.2 15.1 16.1 22.3 20.3