The main content of the presented petrological-geochemical model describes the processes of migration from the original tolaidic igneous centre in the Harz Mountains from south-east to north-west. A successively change in the composition of the melt up to formation of granitoids by the ongoing progressive polygenesis, igneous displacement as well as metasomatism. As a leading force in these processes, the amplification of tectonic stresses along the Variscian sliding zone is considered.