Forms of nonterrestrial dust on the earth

Details Forms of nonterrestrial dust on the earth Forms of nonterrestrial dust on the earth

Mar 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976metic..11...43k&link_type=abstract

Meteoritics, vol. 11, Mar. 31, 1976, p. 43-50.

Computer Science

Cosmic Dust, Earth Surface, Extraterrestrial Matter, Meteoroid Dust Clouds, Fragments, Meteoritic Composition, Spherules

Scientific paper

A detailed study of pulverized cosmic matter, collected in the region of fall of the Sikhote Alin iron meteorite shower, was conducted. It was possible to distinguish three different forms of material. One form, called meteoritic dust, consists of very small irregular fragments formed as the result of the break-up of large meteorite masses. The second form, meteoric dust, includes magnetic spherules with an average diameter in the range from 30 to 40 microns. The third form of extraterrestrial dust is comprised of particles called micrometeorites. Experiments regarding the artificial formation of meteoric dust particles from meteoritic matter are also discussed. On the basis of the investigations, it is concluded that meteoric dust is continuously falling on the surface of the earth as the result of the intrusion of meteoric bodies.

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