Statistics
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sci...210..185p&link_type=abstract
Science, vol. 210, Oct. 10, 1980, p. 185-188.
Statistics
6
Ganymede, Jupiter (Planet), Planetary Craters, Planetary Temperature, Cratering, Geomorphology, Icy Satellites, Meteorite Craters, Statistics, Jupiter, Satellites, Ganymede, Thermal History, Impact Craters, Data, Statistical Analysis, Geomorphology, Size, Ages, Viscosity, Models, Depth, Evolution, Heat, Mantle, Freezing, Production Rates, Flux
Scientific paper
An approach for factoring the effects of a planetary thermal history into a predicted set of crater statistics for an icy satellite is developed and forms the basis for subsequent data inversion studies. The key parameter is a thermal evolution-dependent critical time for which craters of a particular size forming earlier do not contribute to present-day statistics. An example is given for the satellite Ganymede and the effect of the thermal history is easily seen in the resulting predicted crater statistics. A preliminary comparison with the data, subject to the uncertainties in ice rheology and impact flux history, suggests a surface age of 3.8 x 10 to the 9th years and a radionuclide abundance of 0.3 times the chondritic value.
Malin Michael C.
Phillips James R.
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