Geological overview of the Eastern Alps showing the distribution of investigated sulfates. Salt: 1-Hall in Tirol, 2-Hallein, 3-Hallstatt, 4-Altaussee, 5-Bad Ischl; Gypsum deposits, Northern Calcareous Alps: 6-Golling, 7-Wienern, 8-Lessern, 9-Tragöß, 10-Seewiesen; Gypsum deposits, Central Alpine Mesozoic: 11-Stanz, 12-Göstritz. Overprint temperature of sulfates were calculated using sulfur isotope thermometer (Bojar et al., 2016).