This project aimed at an improved seismic characterization of overdeepened Quaternary valleys and basins in formerly glaciated, mountainous areas using innovative seismic data acquisition, processing, and interpretation. We therefore carried out comprehensive seismic surveys in two overdeepened valleys, the 250 m deep Tannwald Basin (TB) in the Alpine foreland and the >600 m deep inneralpine Lienz Basin (LB). The surveys comprised multicomponent and 3-D seismic experiments using P- and S- waves. In both basins, we...