The Earth’s magnetic field, which is generated in the core, shields the planet from harmful solar radiation and geomagnetic storms, and may influence global climate. Convection of the Earth’s mantle is the engine that drives plate tectonics, building mountains and oceans, and is ultimately responsible for generating earthquakes and volcanoes.
We use a mixture of computer modelling, observation and theory in the fields of geomagnetism, mineral physics and seismology in order to better understand the structure and dynamics of our planet’s interior. We work on problems that range in size from that of a few atoms to that of the entire planet, and time scales from seconds to billions of years.
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Model of convection in the Earth's mantle. Blue regions are those with fast seismic velocity, whilst red regions are seismically slow. Isosurfaces show low velocity regions present at the base of the mantle.