Book Chapter

Anisotropy model for mantle convection

HB Muhlhaus, L Moresi, M Cada

ELSEVIER SCIENCE BV | Published : 2003


The paper presents a new theory for modeling flow in anisotropic, viscous rock. This theory has originally been developed for the simulation of large deformation processes including folding and kinking in multi-layered visco-elastic rock [1,2]. The orientation of slip planes in the context of crystallographic slip is determined by the normal vector, the so-called director of these surfaces. The model is applied to simulate anisotropic natural mantle convection. We compare the evolution of the director and approximately steady states of isotropic and anisotropic convection. The isotropic case has a simple steady state solution, whereas the orthotropic convection model produces a continuously ..

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University of Melbourne Researchers