Cratering history of the Saturnian satellites

Details Cratering history of the Saturnian satellites Cratering history of the Saturnian satellites

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pggp.rept..113p&link_type=abstract

In its Rept. of Planetary Geol. Program, 1983 p 113-115 (SEE N84-23431 13-91)

Physics

Craters, Planetary Surfaces, Saturn (Planet), Saturn Satellites, Extrapolation, Frequency Distribution, Projectiles, Solar System

Scientific paper

In an attempt to relate the observed crater frequencies on the saturnian satellites with absolute time, the cratering history of the Saturn system was modeled. The model is based upon several assumptions. First, the cumulative flux history at Saturn resembles that of the inner solar system. That is to say, a high cratering rate which rapidly (exponentially) decayed over the first few hundred million years followed by a significatly lower but more constant flux to the present. Second, the end of the heavy bombardment occured about 3.7-3.8 b.y. ago. Third, Population I craters, dominated by large diameters and having a shallow size-frequency distribution slope, were formed during the period of heavy bombardment. Population II craters, characterized by small craters and a steep distribution slope, have formed since the heavy bombardment ended.

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