The Czorsztyn sedimentary zone was a part of the East-European Platform separated from it by passive rifting. The source supplying the clastic material in the Jurassic limestone of the Czorsztyn sedimentary area was an emerged ridge which bordered the outer margin of the Czorsztyn submarine elevation. Granitoids, clastic rocks of Permian, Triassic and Liassic, acid and also to a lesser extent basic volcanites, a huge amount of Triassic dolomites and some Liassic spongolites outcropped there. The very rare radiolarites might be of an exotic origin.