Lianxing Wen -> Research -> Geodynamics
Theoretical and Observational Geodynamics
Our research in geodynamics is directed at understanding the relationship of
large scale geodynamical observables (geoid, topography, plate motions and
intra-plate stresses) with mantle rheology and convection. Mantle convection
causes lateral variations of chemistry and temperature in the mantle and
those lateral variations eventually drive mantle convection and produce
signatures which are observable at the surface of the Earth. Understanding
those surface signatures is crucial to understanding mantle dynamics and
those surface signatures must be used to test against predictions from
Our approaches toward the problem have been both theoretical and observational.
We have developed new methods to calculate three-dimensional viscous flow with
lateral variation of rheology. By applying new techniques, we devote
most of our efforts in geodynamics to
understanding deep mantle processes using constraints from those surface
observables and seismic results.