PALYNOSTRATIGRAPHIC STUDIES ON LIGNITE OF THE ZELLER GRAVELS SITUATEDNORTH OF THE NAPF MOUNTAIN (SWISS PLATEAU)

Palynostratigraphic investigations on the so-called ''Zell lignite-com plex'' from a profile taken in the gravel pit close to Zell (Swiss pla teau) revealed a pollen sequence, which can be connected with the long pollen sequences of the lignite area of Gondiswil/Ufhusen (Wegmuller 1992). The Zeli lignite-complex corresponds with the transition period from the end of the last interglacial (Riss/Wurm) to the Early Wurm. This period was characterized by phases with strong erosion and accumu lation. The Lower ''Zeller Schotter'' were deposited during the Riss G lacial and partially at the beginning of the last interglacial. The '' Upper Zeller Schotter'' probably dale to the phases of sedimentation i n Middle Wurm.