Characteristics of Fresh Martian Craters as a Function of Diameter : Comparison with the Moon and Mercury - - Discussion

Florensky et al. (1977) have raised three important questions: 1) the distinction between primary (formational) and secondary (degradational) effects in the definition of fresh martian craters, with particular emphasis on rim crest sharpness in degraded craters; 2) the formalistic method of analysis of the data base and the potential problem of including degraded craters, and 3) the possibility that the inclusion of secondary effects invalidates conclusions about the frequency of occurrence and onset diameters of various martian crater-related features.