Resistivity Measurement of Molten Olivine in a Laser-Heated Diamond

The electrical conductivity of molten olivine is studied up to 3720K and 13.2GPa. The results indicate that the electrical conductivity of molten olivine exhibits the perfect Arrhenius behaviour. The activation energy as well as temperature effect is much smaller than that of the solid olivine. It is expected that the high conductivity zone in the mantle is almost independent of the melting based on our experimental data.