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Development of transverse ridges on rock glaciers: field measurements and laboratory experiments

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  • A. Kääb
  • M. Weber

Abstract

Very high‐resolution photogrammetric and geodetic measurements about the deformation of transverse ridges on Murtèl, Muragl and Suvretta rock glaciers in the Swiss Alps are discussed. The ridges are advected downstreams with a speed that equals the overall speed of the creeping permafrost within the significance level of the applied techniques. Any process of ridge formation is, thus, overlain on the mass creep. In fact, measurements yield local speed maxima on top of the ridges that can be explained by differential movement due to ridge growth through bulging under compressive flow. This hypothesis is consistent with results from laboratory experiments that were performed on a model ramp employing mixtures of Xanthan Gum, sand and gravel. Indications were also found that overthrusting is involved in the development of transverse ridges on rock glaciers. Copyright © 2004 John Wiley & Sons, Ltd.

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  • A. Kääb & M. Weber, 2004. "Development of transverse ridges on rock glaciers: field measurements and laboratory experiments," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 15(4), pages 379-391, October.
    • Handle: RePEc:wly:perpro:v:15:y:2004:i:4:p:379-391
    DOI: 10.1002/ppp.506
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    Cited by:

    1. Arvind Chandra Pandey & Tirthankar Ghosh & Bikash Ranjan Parida & Chandra Shekhar Dwivedi & Reet Kamal Tiwari, 2022. "Modeling Permafrost Distribution Using Geoinformatics in the Alaknanda Valley, Uttarakhand, India," Sustainability, MDPI, vol. 14(23), pages 1-19, November.
    2. Alessandro Cicoira & Marco Marcer & Isabelle Gärtner‐Roer & Xavier Bodin & Lukas U. Arenson & Andreas Vieli, 2021. "A general theory of rock glacier creep based on in‐situ and remote sensing observations," Permafrost and Periglacial Processes, John Wiley & Sons, vol. 32(1), pages 139-153, January.
    3. José Juan de Sanjosé Blasco & Alan D. Atkinson & Manuel Sánchez-Fernández & Antonio Gómez-Ortiz & Montserrat Salvà-Catarineu & Ferran Salvador-Franch, 2022. "Geomatic Techniques Applied to the Dynamic Study (2001–2019) of the Rock Glacier in the Veleta Cirque (Sierra Nevada, Spain)," Land, MDPI, vol. 11(5), pages 1-20, April.

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