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2. The Chemical Composition of Cometary Meteoroids

Published online by Cambridge University Press:  12 April 2016

P. M. Millman

Abstract

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Evidence for the chemical composition of cometary meteoroids is available from the spectra of shower meteors, from the analysis of extra-terrestrial dust particles, from a study of residues in the bottom of microcraters on plates exposed to the interplanetary environment, and from measures of the relative abundances of non-atmospheric ions in the E-region of the earth’s upper atmosphere. Quantitative measures of chemical abundances in meteoroids, based on the four techniques listed, show that in general the cometary meteoroids encountered by the earth conform to the carbonaceous chondrites type 1 in the case of the commonest metallic elements. There is also qualitative evidence of the presence of significant quantities of some of the light volatiles.

Type
Part III. Meteors and Meteoroids
Information
International Astronomical Union Colloquium , Volume 39: Comets, Asteroids, Meteorites: Interrelations, Evolution and Origins , December 1977 , pp. 127 - 132
Copyright
Copyright © A.H. Delsemme 1977

References

Ahrens, L. H. 1965, Distribution of the Elements in our Planet, McGraw-Hill Book Co., New York, N.Y., p. 96.Google Scholar
Brownlee, D. E., Tomandl, D. A., Hodge, P. W., and Hörz, F. 1974, Nature, 252, 667.Google Scholar
Brownlee, D. E., Hörz, F., Tomandl, D. A., and Hodge, P. W. 1976a, The Study of Comets (eds. Donn, B., Mumma, M., Jackson, W., A’Hearn, M., Harrington, R.) NASA SP-393, Washington, D.C., p. 962.Google Scholar
Brownlee, D. E., Tomandl, D. A., and Hodge, P. W. 1976b, Interplanetary Dust and Zodiacal Light (eds. Elsässer, H. and Fechtig, H.), Springer-Verlag, New York, N.Y., p. 279.CrossRefGoogle Scholar
Brownlee, D. E., and Rajan, R. S. 1977, this volume.Google Scholar
Cameron, A.G.W. 1973, Space Sci. Rev., 15, 121.Google Scholar
Ceplecha, Z. 1971, Bull. Astron. Inst. Czecho., 22, 219.Google Scholar
Goldberg, R. A., and Aikin, A. C. 1973, Science, 180, 294.Google Scholar
Halliday, I. 1961, Publ. Dominion Obs., 25, 1.Google Scholar
Harvey, G. A. 1973, J. Geophys. Res., 78, 3913.Google Scholar
Jacchia, L. G., and Whipple, F. L. 1961, Smithsonian Contrib. Astrophys., 4, 97.Google Scholar
Jacchia, L. G., Verniani, F., and Briggs, R. E. 1967, Smithsonian Contrib. Astrophys., 11, 1.Google Scholar
Krankowsky, D., Arnold, F., Wieder, H., and Kissel, J. 1972, Intern. J. Mass Spectr. Ion Phys., 8, 379.Google Scholar
Mason, B. 1971, Meteoritics, 6, 59.Google Scholar
Millman, P. M. 1963, Smithsonian Contrib. Astrophys., 7, 119.Google Scholar
Millman, P. M. 1972a, From Plasma to Planet (ed. Elvius, A.) Almqvist and Wiksell, Stockholm, p. 157.Google Scholar
Millman, P. M. 1972b, J. Roy. Astron. Soc. Canada, 66, 201.Google Scholar
Millman, P. M. 1975, The Dusty Universe (eds. Field, G. B. and Cameron, A.G.W.) Neale Watson Academic Pubs., New York, N.Y., p. 185.Google Scholar
Millman, P. M. 1976, Interplanetary Dust and Zodiacal Light (eds. Elsasser, H. and Fechtig, H.) Springer-Verlag, New York, N.Y., p. 359.Google Scholar
Narcisi, R. S. 1968, Space Research VIII (eds. Mitra, A. P., Jacchia, L. G. and Newman, W. F.) North-Holland Publ. Co., Amsterdam, p. 360.Google Scholar
Savage, H. F., and Boitnott, C. A. 1973, Evolutionary and Physical Properties of Meteoroids (eds. Hemenway, C. L., Millman, P. M., Cook, A. F.) NASA SP-319, Washington, D.C., p. 83.Google Scholar
Schmitt, R. A., Goles, G. G., Smith, R. H., and Osborn, T. W. 1972, Meteoritics, 7, 131.Google Scholar
Whipple, F. L. 1967, The Zodiacal Light and the Interplanetary Medium, (ed. Weinberg, J. L.) NASA SP-150, Washington, D.C., p. 157.Google Scholar