Io - Energy constraints and plume volcanism

Details Io - Energy constraints and plume volcanism Io - Energy constraints and plume volcanism

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...44..234r&link_type=abstract

(IAU, American Astronomical Society, COSPAR, University of Hawaii, and NASA, Colloquium on the Satellites of Jupiter, 5th, Kailu

Astronomy and Astrophysics

Astronomy

13

Crusts, Io, Planetary Geology, Plumes, Surface Layers, Volcanoes, Energy Transfer, Enthalpy, Infrared Radiometers, Magma, Planetary Structure, Silicates, Sulfur, Sulfur Dioxides

Scientific paper

Observational and theoretical considerations, including near-surface energy constraints, suggest a model of Io that features a surface layer of sulfur overlying an active silicate crust. Such a model would imply frequent contact between silicate magma intrusions and the sulfur layer. This contact could produce volcanic plumes driven by high-temperature sulfur vapor. Plumes driven by sulfur vapor meet observational constraints for a wide range of possible conditions, in contrast to the special conditions required for plume generation by SO2. Characteristics of the two models are compared, and it is suggested that high-spatial-resolution infrared radiometry could identify the driving volatile.

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