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Evolution Of Drainage Network And Basin. Crustal thickening and crustal extension as controls on the evolution of the drainage network of the central Swiss Alps between 30 Ma and the present. We characterize the river basin geometry and inter-basin relief through metrics. These models mimic key processes of landscape evolution such as sediment transport in alluvial and bedrock channels soil creep rain splash with a few simplified equations derived from general conservation principles. Drainage network pattern preserves an important history of river activity in response to regional tectonics and morphologic evolution.
Using the basin morphology and drainage network an. Four experiments in alluvial drainage basin evolution were carried out in the Rainfall Erosion Facility REF at Colorado State University to investigate the dependence of basin evolution on initial topography. Each experiment began with a unique initial condition representing various end-members of relief and hypsometry. Analysis of the modern river geometry reveals the geometric stability or instability of the drainage network and enables interpretation of the erosion and exhumation pattern. Crustal thickening and crustal extension as controls on the evolution of the drainage network of the central Swiss Alps between 30 Ma and the present. Constraints from the stratigraphy of the North Alpine Foreland Basin and the structural evolution.
1991a b c and its descendants are the only attempts at high-resolution pro-.
Crustal thickening and crustal extension as controls on the evolution of the drainage network of the central Swiss Alps between 30 Ma and the present. Constraints from the stratigraphy of the North Alpine Foreland Basin and the structural evolution of the Alps. A homoclinal shifting process in NE of the Ebro basin NE Iberian Peninsula reorganized an old flow network into a new one. Geometry of these drainage basins has evolved through the history of Alpine and Carpathian orogeny. 1991a b c and its descendants are the only attempts at high-resolution pro-. Drainage networks evolve as a dynamical system adjusting to perturbations in the landscape such as those associated to tectonic deformation in order to reach an equilibrium between fluvial erosion and base level variations then maintaining a steady fluvial network and stationary drainage divides Howard 1965.