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How volcanism controls the interiors of lava-worlds

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Jupiter’s moon Io is the most volcanically active body in the solar system, and is part of a growing class of discovered ‘lava-worlds’. Volcanism transports vast quantities of heat from Io’s interior to the surface, a heat transfer mechanism with significant implications for interior structure. We present a model of coupled magmatism and volcanism applied to Io. Intrusive and extrusive rates control the thickness of Io’s crust, whilst continual melting and extraction from the interior, together with suppressed convection could have resulted in a strongly layered mantle. Our results are in agreement with all currently available observations of Io, and present hypotheses readily testable by future missions.

This talk is part of the Cambridge Volcanology Seminar series.

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