Articles | Volume 15, issue 4
https://doi.org/10.5194/tc-15-2057-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-2057-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Apr 2021
Research article |
| 26 Apr 2021
| 26 Apr 2021
Deciphering the evolution of the Bleis Marscha rock glacier (Val d'Err, eastern Switzerland) with cosmogenic nuclide exposure dating, aerial image correlation, and finite element modeling
Dominik Amschwand
CORRESPONDING AUTHOR
Department of Earth Sciences, ETH Zurich, 8092, Zurich, Switzerland
now at: Department of Geosciences, University of Fribourg, 1700,
Fribourg, Switzerland
Susan Ivy-Ochs
Department of Earth Sciences, ETH Zurich, 8092, Zurich, Switzerland
Laboratory of Ion Beam Physics, ETH Zurich, 8093, Zurich, Switzerland
Marcel Frehner
Department of Earth Sciences, ETH Zurich, 8092, Zurich, Switzerland
Olivia Steinemann
Laboratory of Ion Beam Physics, ETH Zurich, 8093, Zurich, Switzerland
Marcus Christl
Laboratory of Ion Beam Physics, ETH Zurich, 8093, Zurich, Switzerland
Christof Vockenhuber
Laboratory of Ion Beam Physics, ETH Zurich, 8093, Zurich, Switzerland
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Short summary
We reconstruct the Holocene history of the Bleis Marscha rock glacier (eastern Swiss Alps) by determining the surface residence time of boulders via their exposure to cosmic rays. We find that this stack of lobes formed in three phases over the last ~9000 years, controlled by the regional climate. This work adds to our understanding of how these permafrost landforms reacted in the past to climate oscillations and helps to put the current behavior of rock glaciers in a long-term perspective.
We reconstruct the Holocene history of the Bleis Marscha rock glacier (eastern Swiss Alps) by...
