10: Models of volcanism and interior structure

Details 10: Models of volcanism and interior structure 10: Models of volcanism and interior structure

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phdt.........6c&link_type=abstract

Ph.D. Thesis Arizona State Univ., Tempe.

Mathematics

1

Environment Models, Geomorphology, Io, Mathematical Models, Volcanoes, Volcanology, Crusts, Finite Element Method, Heat Transfer, Magma, Sulfur Compounds, Temperature Gradients

Scientific paper

The silicate magma trigger model of volcanism on Io is evaluated numerically with finite element methods by considering the one dimensional heat transfer between hot silicate magma and initially cold sulfur. For the probable range of initial magma temperatures and sulfur temperatures, the contact between silicate magma and a sulfur crust will be 700 + or - 100 K, or approximately the vapor point of elemental sulfur. This model may account for the origin of plumes and possible sulfur flows, as well as for their observed temperatures and lifetimes. Most of the heat flow from Io may be moved by convection from the interior to the surface, not by conduction. High alkalies in the Io plasma torus suggest the possibility that the Ionian crust is a highly differentiated silicate.

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