Statistics
Scientific paper
Mar 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...69..506l&link_type=abstract
Icarus (ISSN 0019-1035), vol. 69, March 1987, p. 506-518.
Statistics
61
Icy Satellites, Impact Tests, Jupiter Satellites, Planetary Craters, Satellite Surfaces, Saturn Satellites, Impact Loads, Low Temperature, Temperature Dependence, Planets, Ice, Impacts, Experiments, Temperature, Laboratory Studies, Velocity, Energy, Size, Diameter, Volume, Comparisons, Analysis, Scaling, Strength, Formation, Craters, Jupiter, Satellites, Saturn, Surface, Age, Crust, Ejecta, Silicate, Regolith, Procedure, Shape, Photographs, Morphology, Fracturing, Structure, Depth, Calculations
Scientific paper
Cubic and cylindrical water ice targets at 257 and 81 K have been subjected to impact velocities between 0.1 and 0.64 km/sec and impact energies of 10 to the 9th-10 to the 10th ergs, yielding craters that are 2-3 times larger than those obtained through equal energy impacts in basaltic targets. On the basis of a similarity analysis, general scaling laws are derived for strength-controlled crater formation and applied in a consideration of crater formation on the icy Galilean and Saturnian satellites. Surface ages are predicted by the analysis to appear greater than those for a silicate crust experiencing the same impact history, on the basis of icy crust impact crater statistics.
Ahrens Thomas J.
Lange Manfred A.
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