Large impact basins on Mercury and relative crater production rates

Details Large impact basins on Mercury and relative crater production rates Large impact basins on Mercury and relative crater production rates

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979lpi....10..402f&link_type=abstract

LUNAR AND PLANETARY SCIENCE X, P. 402-404. Abstract.

Physics

Mercury (Planet), Meteorite Craters, Structural Basins, Diameters, Least Squares Method, Lunar Craters, Mariner 10 Space Probe, Planetary Evolution, Terrestrial Planets

Scientific paper

Mariner 10 revealed evidence for 40 impact basins having diameters greater than or equal to 200 km on the portion of Mercury imaged at sufficient resolution. A log (cumulative number/unit area) vs. log (diameter) plot for the mercurian basins has a least squares slope of -2. Mercury has (in cumulative number/unit area) only 37 percent as many basins as does the Moon over the entire range of diameters greater than or equal to 300 km. If both the Moon and Mercury have had similar preservation times for craters and if common populations of impactors are involved, then Mars crossers may have been a dominant contribution to the basin forming objects.

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