Abstract
The open pit section at Thalgut, near Berne (Switzerland), had already been considered as a “quite complete reference section”, with interglacial lacustrine beds, complex glacial sequences and evidence for morphogenetic activity during an earlier interglacial. By a drilling operation this section has been extended, and completed. A long core of a still older interglacial has been recovered containing palynostratigraphic segments characterized by high percentages of Pterocarya and Fagus pollen assemblages. With this discovery the Thalgut section has become the most complete Quaternary sequence of the Northern Alpine Foreland—with two different interglacial lacustrine beds and with a relic paleosoil, separated each by complex glacial and glaciolacustrine sediments. This record also implies a much older age for maximum erosion in the Alpine Foreland.
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