Grain metamorphism in polar nitrogen ice on Triton

Details Grain metamorphism in polar nitrogen ice on Triton Grain metamorphism in polar nitrogen ice on Triton

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16..965z&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 16, Aug. 1989, p. 965-968.

Physics

11

Crystal Growth, Grain Size, Polar Caps, Solid Nitrogen, Triton, Independent Variables, Metamorphism (Geology), Solar System, Neptune, Satellites, Triton, Hypotheses, Grains, Metamorphism, Methane, Polar Regions, Nitrogen, Ice, Size, Ice Caps, Surface, Temperature, Volatiles, Models, Diameter, Latitude, Albedo, Timescale

Scientific paper

The rate of nitrogen grain growth on putative N2-rich polar caps on Triton is calculated. For most plausible assumptions of independent variables, mean grain sizes in polar N2 are meter-scale. Triton's polar caps should constitute the definitive solar-system test bed for the process of ice grain metamorphism. Interpretation of data already in hand may require long path length through condensed N2, possibly due to grain growth. Upcoming Voyager data may clarify the situation, although possible complications in detecting a glaze of N2 ice exist.

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