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Martian cratering 11. Utilizing decameter scale crater populations to study Martian history

Daubar, I. J.; Hartmann, W. K.

New information has been obtained in recent years regarding formation rates and the production size-frequency distribution (PSFD) of decameter-scale primary Martian craters formed during recent orbiter missions. Here we compare the PSFD of the currently forming small primaries (P) with new data on the PSFD of the total small crater population that…

Investigating target versus impactor influences on Martian crater morphology at the simple-complex transition

Hynek, Brian M.; Herrick, Robert R.

Comparing craters of identical diameter on a planet is an empirical method of studying the effects of different target and impactor properties while holding total impact energy nearly constant. We have analyzed the Martian crater population within a narrow diameter range (7 km < crater diameter < 9 km) at the simple-complex crater transition…