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Geographica Helvetica
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Volume 48, issue 3
Geogr. Helv., 48, 120-124, 1993
https://doi.org/10.5194/gh-48-120-1993
© Author(s) 1993. This work is distributed under
the Creative Commons Attribution 3.0 License.
Geogr. Helv., 48, 120-124, 1993
https://doi.org/10.5194/gh-48-120-1993
© Author(s) 1993. This work is distributed under
the Creative Commons Attribution 3.0 License.

  30 Sep 1993

30 Sep 1993

Zur Genese der Aareschlucht (Berner Oberland, Schweiz)

R. Hantke1 and A. E. Scheidegger2 R. Hantke and A. E. Scheidegger
  • 1Geologisches Institut, ETH Zentrum, 8092 Zürich, Switzerland
  • 2Abteilung Geophysik, TU Wien ,1040 Wien, Austria

Abstract. On the genesis of the Aare Gorge, Bernese Oberland, Switzerland: A Statistical analysis of the directions of joints and river segments in the region of the Aare Gorge yields that these directions coincide and that therefore the Gorge was not created by epigenetic river erosion in lower Cretaceous imestones with early Tertiary breccias and sandstones, but that it was predesigned by tectonic joints. In this instance, the joint-clefts were at most cleared out: the erosion at the foot of the gorge is minimal. It is quite possible that the preexisting joint-clefts reach quite deep down and were not only not "cut" by the Aare river , but filled by sediments up to the supposed base level of erosion.

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