Modeling of planetary regolith

Details Modeling of planetary regolith Modeling of planetary regolith

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990geokh.....1210r&link_type=abstract

Geokhimiia (ISSN 0016-7525), Aug. 1990, p. 1210-1214. In Russian.

Mathematics

Logic

Meteorite Collisions, Planetary Evolution, Planetary Geology, Regolith, Aluminum Compounds, Chemical Composition, Copper Compounds, Galactic Cosmic Rays, Solar Radiation

Scientific paper

The dynamics of planetary-regolith formation following a collision with a meteorite is investigated by analyzing the nature of breakdown products of a natural target after a single impact by a duraluminum or a copper ball, and by examining secondary processes accompanying the impact. Using the experimental setup described by Barvin and Cherniavskii (1979) for producing a single-impact scenario, breakdown products were analyzed chemically and morphologically. It was found that, in the case of a basaltic target, a single impact by a high-speed heavy impactor led to a complete breakdown of the target and to its fractionation according to its mineral and chemical composition, followed by the agglutination of the fractionation products. It is suggested that several regolith-forming processes initiated by the impact lead to a formation of all the basic components of the regolith, the surface of which is later modified by the solar wind and galactic cosmic rays.

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