Fig. 5

Geochronological data on the Alpine high-pressure metamorphism in the Austroalpine nappes of the Eastern Alps, in the Sesia–Dent Blanche nappes, and in the Zermatt–Saas Zone. Blue indicates blueschist facies metamorphism, whereas pink and green depict eclogite facies metamorphism, in the Sesia Zone and in the Zermatt–Saas Zone, respectively. The timing of sedimentation in the Gosau basins (Eastern Alps) is shown for comparison, to emphasize the major difference in evolution between Austroalpine units in the Eastern Alps and the Sesia–Dent Blanche nappes