Geographica Helvetica
Geographica Helvetica
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Articles | Volume 76, issue 4
Articles | Volume 76, issue 4
https://doi.org/10.5194/gh-76-401-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gh-76-401-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 76, issue 4
Standard article
 | 
15 Nov 2021
Standard article |  | 15 Nov 2021

Schmidt hammer exposure-age dating of periglacial and glacial landforms in the Southern Swiss Alps based on R-value calibration using historical data

Cristian Scapozza, Chantal Del Siro, Christophe Lambiel, and Christian Ambrosi

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Latest update: 29 Oct 2025
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Short summary
Exposure ages make it possible to determine the time of weathering of a rock surface. They can be determined from rebound values measured with the Schmidt hammer and calibrated on surfaces of known age, defined in this study thanks to historical cartography and two mule tracks built in 300 and 1250 CE, which allowed us to reconstruct glacier fluctuations over the last 3 centuries in Val Scaradra and to define the time of deglaciation and rock glacier development in the Splügenpass region.
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Geomorphology and society