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3. Chemical Composition of Meteoric and Meteoritic Matter

Published online by Cambridge University Press:  12 April 2016

A. A. Yavnel’

Abstract

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A comparison has been made of the data of Millman’s (1972) work on the relative content of Na, Mg, Ca and Fe in Draconids (Giacobinids) with corresponding data for carbonaceous chondrites of type CI, CII, CIIIV, and CIIIO and ordinary chondrites of type H, L and LL. The correlation of values Fe/Mg, Na/Mg and Ca/Mg in Draconids agrees with their successive change in carbonaceous chondrites from CIIIV to CI. By its composition, meteoric substance is more distant from CIII than from CI. This result agrees with the idea that cometary matter condensed farther away from the sun and contains lighter volatile components, than CI chondrites.

Type
Part III. Meteors and Meteoroids
Information
International Astronomical Union Colloquium , Volume 39: Comets, Asteroids, Meteorites: Interrelations, Evolution and Origins , December 1977 , pp. 133 - 135
Copyright
Copyright © A.H. Delsemme 1977

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