Earth Surface Dynamics
The Earth Surface Dynamics group studies the diverse processes that act together to create the morphology and surface geology of the Earth.
The focus of the group of Sean Willett is on tectonic processes that deform the near-surface of the Earth and surface erosion processes that sculpt the surface, creating landforms and sediment. Mountain systems are the best example of this linked system, with mountain-building processes occurring where continents collide, raising high mountains that erode strongly under the influence of harsh climate conditions. This produces sediments that are deposited around mountain belts in orogenic basins, which preserve the archive of a mountain belt history.
The processes of continental collision, tectonic mountain building, erosion, sediment production and transport are all of interest to the Earth Surface Dynamics (ESD) group.
The researchers employ a variety of techniques to study this system. These include modelling, fieldwork, and geochemical analyses. Computer modelling of tectonic and geomorphic processes play an important role in this research. By making models of the tectonic processes that create topography and the erosional processes that destroy it, the researchers can learn much about how the landscape evolves.
Complex computer codes allow simulation of lithosphere deformation, surface processes and climate influences on the landscape. Fieldwork is also an important component of their research.