Explosive venting on Europa? A preliminary assessment

Details Explosive venting on Europa? A preliminary assessment Explosive venting on Europa? A preliminary assessment

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..345f&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 345.

Mathematics

2

Europa, Satellite Surfaces, Plumes, Gas Flow, Magma, Volcanoes, Mathematical Models, Venting, Bubbles, Water

Scientific paper

Using simple models, this preliminary study suggests that the gas mass percentages required to achieve the eruption velocities, plume heights, and deposit widths for the Rhadamanthys Linea spots on Europa typically exceed the maximum cryomagma gas mass fraction indicated by solubility relationships. If larger dark patches on the Europan surface are the result of explosive cryovolcanic processes, still greater gas concentrations are required. It is therefore likely that explosive venting on Europa does not typically involve ascent and fragmentation of homogeneous bubble-water mixtures, and thus some mechanism for gas segregation is required to initiate explosive eruption of the cryovolcanic mixture. These findings support the eruption model of Crawford and Stevenson (1988), in which explosive venting results from the propagation of dikes containing large proportions of gas separated from the cryomagma.

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