Cooling and deformation of sulfur flows

Details Cooling and deformation of sulfur flows Cooling and deformation of sulfur flows

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...56...38f&link_type=abstract

Icarus (ISSN 0019-1035), vol. 56, Oct. 1983, p. 38-50.

Computer Science

24

Io, Lava, Satellite Surfaces, Sulfur, Volcanoes, Rheology, Temperature Profiles, Voyager 1 Spacecraft, Jupiter, Satellites, Io, Cooling, Deformation, Sulfur, Flows, Lava, Silicate, Surface, Morphology, Rheology, Radiation, Conduction, Models, Evolution, Temperature, Eruptions, Density, Gravity Effects, Resurfacing, Stress, Fracturing, Turbulence, Zoning, Ridges, Cracks, Color, Data, Calculations, Diagrams

Scientific paper

A simple one-dimensional cooling analysis is used to consider the cooling of a flow of pure sulfur on the Ionian surface by a combination of upward radiation and downward conduction, and some speculations on the nature of surface structures and optical properties for such a flow are made. It is concluded that surface folding caused by compressive stresses, crustal foundering due to tensile fracturing and density inversions, and local turbulence may result in regularly spaced surface ridges periodically interrupted by upwellings of liquid sulfur onto the frozen surface of the flow. The model suggests that although the color of the surface crust of a quickly quenched sulfur flow will not necessarily reflect the local internal temperature of the flow, diapiric upwellings and convection from beneath this crust should indicate the progressive cooling of the inner, more fluid zones of the flow.

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