Fig. 5

Sampling sites for U/Th dating. a Site 1 in Steffisgang (cave level I) with small stalagmite (arrow) on debris and on top of a failed Muschelkalk bench. b Site 2 in Steffisgang with the in situ stalagmite. From the same site 2, the small stalactite was also sampled as shown in (c). d Site 3 in the Labyrinth in cave level II with the position of the small sinter column at the ceiling (arrow) 1.86 m above ground (scale: 2 m). e Site 4 in Dreikönig. The samples were taken from the flowstone on top of the gravel deposit (scale: 1 m)