Articles | Volume 71, issue 2
E&G Quaternary Sci. J., 71, 163–190, 2022
https://doi.org/10.5194/egqsj-71-163-2022
E&G Quaternary Sci. J., 71, 163–190, 2022
https://doi.org/10.5194/egqsj-71-163-2022
Research article
01 Sep 2022
Research article | 01 Sep 2022

Two glaciers and one sedimentary sink: the competing role of the Aare and the Valais glaciers in filling an overdeepened trough inferred from provenance analysis

Michael A. Schwenk et al.

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Short summary
We investigated the origin of glacial sediments in the Bern area to determine their route of transport either with the Aare Glacier or the Valais Glacier. These two ice streams are known to have joined in the Bern area during the last major glaciation (ca. 20 000 years ago). However, little is known about the ice streams prior to this last glaciation. Here we collected evidence that during a glaciation about 250 000 years ago the Aare Glacier dominated the area as documented in the deposits.