The 1950 sulfur flow of Mauna Loa: Considerations for Io

Details The 1950 sulfur flow of Mauna Loa: Considerations for Io The 1950 sulfur flow of Mauna Loa: Considerations for Io

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept..133g&link_type=abstract

In NASA. Washington Rept. of Planetary Geol. Program, 1983 p 133-134 (SEE N84-23431 13-91)

Mathematics

Logic

Hawaii, Io, Lava, Rheology, Satellite Surfaces, Sulfur, Volcanoes, Volcanology, Effusives, Silicates, Spatial Distribution, Viscosity, Voyager Project

Scientific paper

Some of the geological relationships observed in the Mauna Loa sulfur flow may apply in considering volcanic processes on Io. Given the presence of sulfur/sulfur compounds in the eruption plumes and on the surface of Io, it is likely that extensive secondary deposits of sulfur exist, some of which may be of fumarolic origin and analogous to the Mauna Loa deposit. Given the likelihood of silicate volcanism of Io based on the inferred material properties of some flows, and the attendant high temperatures for silicate volcanism, it is likely that the secondary surface deposits of sulfur would have been mobilized without being heated to the high viscosity stage. Mobilized sulfur flows on Io may flow long distances as a result of: (1) low viscosities in the melting range; (2) sustained effusion resulting from continued heating source area; (3) continued remobilization within the flow as a consequence of surges from the source; and (4) extension via lava tubes, or similar conduits through which there is little heat loss. Sulfur flows may form a relatively thin veneer over silicate flows and other surface units, given their fluidity and low mobilization temperature. Active splashing and splattering may spread sulfur over a wider area contributing the bright blooms observed in association with some Ionian flows.

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