We present a topographic reconstruction of the European Alps prior to Quaternary glaciation, based on the assumption that this topography was a steady-state fl uvial landscape eroding according to a stream-power law, but with spatially variable channel steepness. We fi nd high pre-glacial channel steepness in the western Alps and on the harder rocks of the basement and metamorphic nappes, while lower values are often associated with weaker Alpine fl ysch deposits. The reconstructed pre-glacial river network also provides an estimate of distribution and magnitude of glacial erosion and associated isostatic adjustment, suggesting an increase of valley-scale topographic relief and decrease of mean elevation throughout glaciation.

Sternai, P., Herman, F., Champagnac, J., Fox, M., Salcher, B., Willett, S. (2012). Pre-glacial topography of the European Alps. GEOLOGY, 40(12), 1067-1070 [10.1130/G33540.1].

Pre-glacial topography of the European Alps

Sternai, P
;
2012

Abstract

We present a topographic reconstruction of the European Alps prior to Quaternary glaciation, based on the assumption that this topography was a steady-state fl uvial landscape eroding according to a stream-power law, but with spatially variable channel steepness. We fi nd high pre-glacial channel steepness in the western Alps and on the harder rocks of the basement and metamorphic nappes, while lower values are often associated with weaker Alpine fl ysch deposits. The reconstructed pre-glacial river network also provides an estimate of distribution and magnitude of glacial erosion and associated isostatic adjustment, suggesting an increase of valley-scale topographic relief and decrease of mean elevation throughout glaciation.
Articolo in rivista - Articolo scientifico
Geology
English
2012
40
12
1067
1070
none
Sternai, P., Herman, F., Champagnac, J., Fox, M., Salcher, B., Willett, S. (2012). Pre-glacial topography of the European Alps. GEOLOGY, 40(12), 1067-1070 [10.1130/G33540.1].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/229043
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