“…Rb/Sr 150 and Ar/Ar isotopic investigations of pseudotachylytes indicate that they formed about 75 Ma 151 ago (Thöni, 1988;Bachmann et al, 2009). Fault rocks are assumed to have developed at 152 lower greenschist facies conditions between 300 and 400°C, as indicated by Alpine mineral 153 paragenesis in pseudotachylytes and host rock (Koch and Masch, 1992), which is consistent , 1978;Stöckhert, 1982;Kleinschrodt, 1987;Schulz, 1994). North to the DAV shear 167 zone, the metamorphic conditions were 450±50 °C with pressures of about 0.7 GPa based on 168 phase relations in the metapelitic Austroalpine basement rocks (Stöckhert, 1982(Stöckhert, , 1987 (Stöckhert, 1982(Stöckhert, , 1984Kleinschrodt, 1987;.…”