Evolution of the terrestrial meteorite crater system

Details Evolution of the terrestrial meteorite crater system Evolution of the terrestrial meteorite crater system

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981avest..14..182d&link_type=abstract

(Astronomicheskii Vestnik, vol. 14, July-Sept. 1980, p. 182-188.) Solar System Research, vol. 14, no. 3, Jan. 1981, p. 145-151.

Mathematics

Logic

1

Earth Surface, Meteorite Craters, Random Walk, Diffusion Coefficient, Geology, Mass Distribution, Random Noise

Scientific paper

It is shown that the mean crater life of terrestrial meteorite craters is equal to the square of the diameter divided by the macrodiffusion coefficient and that the destruction of craters can be represented as a random-walk process. The macrodiffusion coefficient for the earth is given as 1/30 sq m/yr; for other planets, it depends on surface activity. The diagnostic features of a crater are proportional to the crater's initial area and inversely proportional to its age. The geological noise forming the background of the crater has a normal Gaussian spectrum.

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