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Possible Mars brines - Equilibrium and kinetic considerationsTo 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.
Document ID
19860049982
Document Type
Reprint (Version printed in journal)
Authors
Zent, A. P. (Hawaii Univ. Honolulu, HI, United States)
Fanale, F. P. (Hawaii, University Hawaii Institute of Geophysics, Honolulu, United States)
Date Acquired
August 12, 2013
Publication Date
March 30, 1986
Publication Information
Publication: Journal of Geophysical Research
Volume: 91
ISSN: 0148-0227
Subject Category
LUNAR AND PLANETARY EXPLORATION
Funding Number(s)
CONTRACT_GRANT: NAGW-583
Distribution Limits
Public
Copyright
Other