Quantification of post-glacier bedrock surface erosion in the European Alps using ¹⁰Be and optically stimulated luminescence exposure dating

Abstract 10 Be surface exposure dating to constrain the post-glacier erosion rates of bedrock samples adjacent to the Gorner Glacier in the European Alps. The results reveal erosion rates of the order of 10- 2 - 1 mm a - 1, in general agreement with other studies in the region, as well as a strong negative correlation between erosion rate and elevation, suggesting that frost crack weathering is perhaps not the dominant form of post-glacier weathering. Finally, a global compilation of both subglacial and periglacial erosion rates shows that periglacial erosion rates could be greater than previously thought. Yet subglacial erosion remains higher, implying that it continues to have the stronger influence on shaping landscapes. Therefore, with a changing climate, periglacial erosion rates are likely to remain transient. These insights could lead to important implications for landscape evolution models.

Objekt anzeigen

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Quantification of post-glacier bedrock surface erosion in the European Alps using ¹⁰Be and optically stimulated luminescence exposure dating ; volume:10 ; number:5 ; year:2022 ; pages:909-928 ; extent:20 ; Earth surface dynamics ; 10, Heft 5 (2022), 909-928 (gesamt 20)

Beteiligte, Orts- und Zeitangaben

• Urheber: Elkadi, Joanne ; Lehmann, Benjamin ; King, Georgina E. ; Steinemann, Olivia ; Ivy Ochs, Susan ; Christl, Marcus ; Herman, Frédéric

Weitere Informationen

• DOI: 10.5194/esurf-10-909-2022
• URN: urn:nbn:de:101:1-2022092205182240425195
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.