Plates 3 and 4Plates 3 and 4 as well as plates 21 and 22 on the other side of the geological trail give you information concerning the sedimentation environment of the layer sequence and the fossils of the oldest sediments in Vorarlberg. The Alpiner VerrucanoThe mainly red, partly green, grey or brown sediments of the Alpiner Verrucano and the overlying Alpiner Buntsandstein are not restricted to small basins like the earlier sediments. On the contrary, they can be found from northern Germany to Poland down to Italy. They were deposited in the same way as the underlying older sediments, although the climate was more humid. Information on the plates up to RellseckPlate 5 explains the Punt-la-drossa-schists on the right side of the trail. The rauhwacke, sandstone and dolomites indicate a retreat of the marine sea and very shallow marine conditions. Walking northwards, first you cross layered carbonates and dolomites followed by clay stones and schists in the meadows which are overlain by carbonates and dolomites and then on to plate 6. The Upper Carboniferous PeriodThe mica-rich sediments on the right side of the trail are the oldest sediments in Vorarlberg – they mark the base of the marine sedimentary sequence of the northern Calcareous Alps. |