Tectonics - erosion on an orogenic scale

To study the impact of both erosion and sedimentation on landscape evolution and the links with paleoenvironmental conditions, we have undertaken to quantify processes and pathways from mountains to basins at different spatial scales, from high-altitude alpine lake systems and glaciated catchments with watersheds of a few km², to systems such as the Himalayan range and the Bay of Bengal (>106 km2), to track sediments from source to sink. Understanding the relationships between tectonics, erosion, and climate is envisaged by studies combining in-situ measurements of denudation rates and erosion/ transport/ sedimentation models. In this perspective, we have explored several characteristic timescales, from present-day processes and the Anthropocene (103 y), through glacial cycles (105 y), to >107 y life cycles of mountain belts.