Possible Mars brines - Equilibrium and kinetic considerations

Details Possible Mars brines - Equilibrium and kinetic considerations Possible Mars brines - Equilibrium and kinetic considerations

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91..439z&link_type=abstract

(Lunar and Planetary Institute, NASA, American Geophysical Union, et al., Lunar and Planetary Science Conference, 16th, Houston,

Physics

24

Brines, Chemical Equilibrium, Escape Velocity, Kinetic Equations, Mars Surface, Water Vapor, Temperature Effects, Water Balance

Scientific paper

To determine the fate of postulated near surface brines on Mars, the rate of H2O mass loss from subsurface brines was calculated as a function of latitude, depth, regolith porosity, eutectic temperature, and pore size. A model for a chemically reasonable brine that could reproduce Martian radar results was developed, and the escape rate of H2O molecules from such a brine was estimated. It is suggested that the presence of a low-permeability duricrust may be required to preserve such a brine for reasonable periods, and to prevent detection of an extensive subsurface system by the Viking MAWD instrument.

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