Fig. 5
From: Greater Alpine river network evolution, interpretations based on novel drainage analysis
Elevation profiles along adjoining valleys and across drainage divides at major passes of the Alps. Black line indicates the elevation profile; blue line is the local (r = 2 km) maximum elevation; red is χ, note that the gradient of χ represents ksn. The profile locations are according to line and letter in Fig. 4. Asymmetry in elevation and χ reflect divide instability. Note that elevation and χ are independent and so provide independent evidence of divide instability. Profile a represents a divide that is in geometric equilibrium. Profile b shows the divide from the Inn to the Adda with an extreme asymmetry of the divide. Profile c is following the documented former course of the Wutach to the Danube prior to capture by the Rhine. Profile d is an asymmetric divide between the Rhine and Danube. Profile e represents a section along a major extrusion fault (see text). Profile f is an asymmetric divide over the main Alpine divide in the Eastern Alps. Profile g represents a symmetric divide with a Δχ that was probably introduced by a network reorganisation in the Pustertal. Profile h shows the asymmetry between the Inn and Rhine basins. Profile i is documenting the asymmetry and Δχ contrast around the Inn headwaters