Richard Katz is Professor of Geodynamics in Earth Sciences at Oxford. He construes geodynamics broadly, to include natural processes associated with flow and phase change, thermal and chemical transport, on Earth and other planetary bodies. Katz leads the FoaLab, a research group that develops mathematical analysis and numerical models of such systems. Current projects include studies of eruption of mud volcanoes, lake drainage through ice shelves, ore-body formation, tides in Jupiter's moons, magmatism at continental rifts and mid-ocean ridges, and pattern formation in granular-media flows. Collaboration with observationalists/experimentalists is typically how projects are initiated.