Thermal Convection in the Core of Ganymede Inferred from Liquid Eutectic Fe-FeS Electrical Resistivity at High Pressures
Published: 21 May 2021| Version 1 | DOI: 10.17632/4zphh54798.1
Contributor:
Joshua LittletonDescription
The electrical resistivity of solid and liquid Fe-FeS was measured using a 4-wire resistance technique at pressures from 2-5 GPa and the thermal conductivity was calculated using the Wiedemann-Franz Law from the electrical measurements. The results were used to estimate the pressure-dependent eutectic temperatures of the system and adiabatic conductive heat flow at the top of a molten Fe-FeS core model of Ganymede, which showed that thermal convection is permissible as a dynamo power source.
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Institutions
Western University
Categories
Geophysics, Condensed Matter Physics, Electronic Transport in Condensed Matter, Planetary Science, Iron, Electrical Resistivity, Thermal Conductivity, Sulfide, Planetary Interior