Variation of the geomagnetic field characteristics on time scales of hundreds of thousands of years to billions of years reflect changes in the efficiency and geometry of geodynamo, which, in turn, are largely controlled by the interaction of various physical processes in the Earth deep interior – from the inner core to the Earth’s crust. Paleomagnetic and paleointensity data on the long-term behavior of the field, including geomagnetic polarity reversals, secular variation, and field strength variation, are therefore crucial for understanding the history and dynamics of the deep Earth system. We invite contributions on a broad variety of topics integrating paleomagnetic and paleointensity field investigations, numerical dynamo simulations, theoretical and dynamical models of the core and mantle, and computational mineral physics. Topics of interest include, but are not limited to, the strength, morphology, and stability of the field, the frequency of reversals, superchrons, mantle control on the geodynamo, the timing of inner core growth, core thermal conductivity, and the onset and persistence of a strong geomagnetic field.

Invited speaker:
Courtney Sprain (University of Liverpool, UK)