Undercooled water in basaltic regoliths and implications for fluidized debris flows on Mars

Details Undercooled water in basaltic regoliths and implications for fluidized debris flows on Mars Undercooled water in basaltic regoliths and implications for fluidized debris flows on Mars

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...72..519g&link_type=abstract

Icarus (ISSN 0019-1035), vol. 72, Dec. 1987, p. 519-527. NASA-supported research.

Computer Science

4

Cold Water, Geomorphology, Lithology, Mars Surface, Particle Size Distribution, Basalt, Calorimeters, Debris, Mars Atmosphere, Mars, Water, Cooling, Basalts, Regolith, Fluidization, Debris, Flows, Laboratory Studies, Experiments, Freezing, Particles, Calorimetry, Ice, Atmosphere, Carbon Dioxide, Soils, Particles, Size, Analogs, Melting, Temperature, Procedure, Mixing, Parameters, Morphology

Scientific paper

This paper summarizes an exploratory investigation of the freezing and melting of ice mixed with sand-sized soils from a natural basaltic regolith. Because of the previously proposed analogy between the cold-desert soils of Mauna Kea, Hawaii, and those on Mars (Ugolini 1976, Japp and Gooding 1980), soils representing the volcanic and glacial pedogenic processes on Mauna Kea were chosen for study. Results suggest that a Martian regolith composed of mechanically comminuted mafic or ultramafic rocks should permit short-term departures of water from its equilibrium behavior. Water-lubricated mass movements should be favored by the fact that most igneous minerals are relatively poor nucleators of ice so that liquid water can be substantially undercooled before freezing.

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