Interactions géomorphologiques et sédimentaires entre bassin versant et piémont alluvial. Modélis... more Interactions géomorphologiques et sédimentaires entre bassin versant et piémont alluvial. Modélisation numérique et exemples naturels dans les Andes
The existence of strong sedimentary feedback or “teleconnections” between mountain and foreland h... more The existence of strong sedimentary feedback or “teleconnections” between mountain and foreland has been suggested by recent geomorphological studies. Even if it is assumed that the foreland is essentially controlling mountain base level and the mountain provides incoming sediment fluxes to the foreland, feedback effects on sedimentary dynamics throughout the system are still not well understood. We carried out a numerical study, using the landscape evolution model CIDRE to provide improved feedback interpretations that focus on a mountain-foreland system. Mountainous regions correspond to an uplifted block and foreland regions are formed over an initial horizontal surface. In a previous work we showed that strong entrenchment affecting both foreland and mountain occur in this system without any climatic or tectonic changes. The two necessary conditions for this kind of entrenchment are: a significant transport threshold (critical shear stress); and a downstream boundary condition c...
Interactions géomorphologiques et sédimentaires entre bassin versant et piémont alluvial. Modélis... more Interactions géomorphologiques et sédimentaires entre bassin versant et piémont alluvial. Modélisation numérique et exemples naturels dans les Andes
The existence of strong sedimentary feedback or “teleconnections” between mountain and foreland h... more The existence of strong sedimentary feedback or “teleconnections” between mountain and foreland has been suggested by recent geomorphological studies. Even if it is assumed that the foreland is essentially controlling mountain base level and the mountain provides incoming sediment fluxes to the foreland, feedback effects on sedimentary dynamics throughout the system are still not well understood. We carried out a numerical study, using the landscape evolution model CIDRE to provide improved feedback interpretations that focus on a mountain-foreland system. Mountainous regions correspond to an uplifted block and foreland regions are formed over an initial horizontal surface. In a previous work we showed that strong entrenchment affecting both foreland and mountain occur in this system without any climatic or tectonic changes. The two necessary conditions for this kind of entrenchment are: a significant transport threshold (critical shear stress); and a downstream boundary condition c...
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Papers by Emilie Pepin