Franconian Line

The Franconian line is a geological fault that forms the boundary between the South German cuesta land in the west ( overburden ) and the Fichtelgebirge and the Upper Palatinate Forest in the east ( basement ).

The Franconian line was towards the end of the Variscan orogeny from a reactivation of an even older strike-slip fault. Your most active phase, they had probably 100-50 million years BP, as the foreshore under the Fichtelgebirge and the Upper Palatinate Forest with its Variscan granite bodies, prävariszischen gneisses, Paleozoic metasediments and Metabasalten was pushed. Parts of the foreland filled as early as the Permian sediment and over time increased by the further reduction of the foreland and the supplying regions, the existing pool. In addition to the vertical offset, which is between 1000 m at Wirsberg and up to 10,000 m in other areas, it has now probably a dextral component.