Mathematics – Logic
Scientific paper
Oct 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...60..189g&link_type=abstract
Icarus (ISSN 0019-1035), vol. 60, Oct. 1984, p. 189-199.
Mathematics
Logic
28
Io, Planetary Surfaces, Sulfur, Volcanoes, Flow Characteristics, Hawaii, Lava, Morphology, Silicates, Jupiter, Satellites, Io, Analogs, Sulfur, Flows, Composition, Spectra, Origin, Source, Morphology, Physical Properties, Silicate, Volcanism, Temperature, Thermal Effects, Melting, Eruptions, Fumeroles
Scientific paper
Independent evidence suggests that both sulfur and silicate materials exist on the surface of Io. Spectral data indicate the presence of sulfur compounds, some of which are suggested to be of fumarolic origin. Morphological evidence and inferences of the physical properties of some land-forms suggest that silicate volcanism has occurred, which would involve temperatures 650 C or greater. Because the liquidus of sulfur is only about 115 C, it is likely that sulfur in close proximity to 'hot spots' or to active silicate volcanic areas on Io would be melted and mobilized as flows. The Mauna Loa sulfur flow may serve as an analog for such flows, as it consists of fumarolic sulfur that was melted as a consequence of a basaltic eruption and produced a small flow superimposed on silicate lavas.
Christensen Paul
Greeley Ronald
Theilig Eilene
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