Open Session - SWISS GEOSCIENCE MEETINGs

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Symposium 6: Apply! Snow, ice and Permafrost Science + Geomorphology
Figure 1: 3D-reconstructed terrain surface of the Pre-Flimserstein. a) Digital terrain model of the Flims rockslide area with the Flimserstein
in the background and the partially eroded rock mass in the foreground. b) Reconstruction of the Pre-Flimserstein and the Vorderrhein
valley before the rockslide event.
6.
Erosion-driven uplift of the modern Central Alps
Champagnac Jean-Daniel*, Schlunegger Fritz **, Norton Kevin*, von Blanckenburg Friedhelm *, Abbühl Luca** & Schwab
Marco**
* Institut für Mineralogie, Universitat Hannover, Callinstrasse 1, D-30167 Hannover, champagnac@gmail.com
** Institute of Geological Sciences, University of Bern, Baltzerstrasse 1-3, CH-3012 Bern.
We present a compilation of four sets of data of modern tectono-geomorphic processes in the Central Alps of Switzerland
that appear to suggest that rock uplift is a response to climate-driven denudation in the absence of active convergence. These
are (1) basin-averaged Late Holocene denudation rates determined from cosmogenic nuclides and from suspended river
loads; these slightly exceed, but spatially mimic the pattern of rock uplift rates as determined by geodetic leveling; (2) the
geodetic reference point is also the geomorphic base level with respect to erosion; we further present (3) a compilation of