Impact interaction of an iron meteorite with a silicate target

Details Impact interaction of an iron meteorite with a silicate target Impact interaction of an iron meteorite with a silicate target

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991geokh......796i&link_type=abstract

Geokhimiia (ISSN 0016-7525), June 1991, p. 796-805. In Russian.

Physics

Chemical Reactions, Hypervelocity Impact, Quartz, Sikhote-Alin Meteorite, Chemical Analysis, Impactors, Kamacite

Scientific paper

The consequences of an impact interaction of an iron meteorite with a silicate target were investigated using a quartz crystal as a target and a ball made from the kamacite body of the Sikhote-Alin' meteorite as an impactor. Results of chemical analyses of the target fragments formed due to an impact at a velocity of 5.10 km/sec showed evidence of an exchange reaction 2Fe + SiO2 yields 2FeO + (Si), where (Si) denotes silicon dissolved in metal. This reaction explains the presence of Ni found after the impact in metallic spherules and in the vapor. Up to 1 percent of the Fe-Ni impactor was evaporated, with the target substance constituting about 2/3 of the vapor mass.

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