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The largest data set for major elements (Schramm et al., 1989) comes from the analyses of 200 stratospheric interplanetary dust particles. Brownlee (1997) gives electron microprobe data for 500 cosmic spherules in the 1 micrometer to 1 millimeter size range but the compositions of these melted particles only partly reflect that of their precursors because of effects related to hypervelocity entry into the atmosphere (Love and Brownlee, 1991; Kornblum, 1969). The author of the figure is Thomas Stephan, Institut für Planetologie, Münster, Germany. This file is licensed under Creative Commons Attribution 2.5 License: http://creativecommons.org/licenses/by/2.5/

See the (Jessberger chapter in in Grün, E., Gustafson, B.A.S., Dermott, S.F., Fechtig, H. (Eds.) Interplanetary Dust book for more details on the analyses of elemental abundances in interplanetary dust particles.

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[edit] References

Brownlee D. E. (1997). "The elemental composition of cosmic spherules". Meteoritics Planet. Sci. 32: 157-176.

E. K. Jessberger, T. Stephan, D. Rost, P. Arndt, M. Maetz, F. J. Stadermann, D. E. Brownlee, J. P. Bradley, G. Kurat (2001). Properties of Interplanetary Dust: Information from Collected Samples, in Grün, E., Gustafson, B.A.S., Dermott, S.F., Fechtig, H. (Eds.) Interplanetary Dust, pp. 253–294, Springer-Verlag.

Kornblum J.J. (1969). "Micrometeoroid interaction with the atmosphere". J. Geophys. Res. 74: 1893-1906.

Love S. G. and Brownlee D. E. (1991). "Heating and thermal transformation of micrometeorites entering the Earth’s atmosphere". Icarus 89: 26-43.

Schramm L. S., Brownlee D. E., and Wheelock M. M. (1989). "Major element composition of stratospheric micrometeorites". Meteoritics 24: 99-112.

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(del) (cur) 10:18, 21 September 2005 . . Amara (Talk | contribs) . . 814×563 (218,606 bytes) (== Summary == The largest data set for major elements (Schramm et al., 1989) comes from the analyses of 200 stratospheric interplanetary dust particles. Brownlee (1997) gives electron microprobe data for 500 cosmic spherules in the 1 micrometer to 1 mili)
(del) (rev) 10:11, 21 September 2005 . . Amara (Talk | contribs) . . 0×0 (212,098 bytes) (The largest data set for major elements (Schramm et al., 1989) comes from the analyses of 200 stratospheric interplanetary dust particles. Brownlee (1997) gives electron microprobe data for 500 cosmic spherules in the 1 micrometer to 1 milimeter size ran)