Mesospheric metal abundances and meteoric dust: analyses of surviving meteoroids

Details Mesospheric metal abundances and meteoric dust: analyses of surviving meteoroids Mesospheric metal abundances and meteoric dust: analyses of surviving meteoroids

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..33.1475r&link_type=abstract

Advances in Space Research, Volume 33, Issue 9, p. 1475-1480.

Computer Science

Scientific paper

Looking at the supply side of mesospheric metals using compositions of surviving meteoroids, the average element abundances are not uniformly chondritic with Fe, S, Na and K depletions. The calculated mesospheric C/Si ratio is due to micrometeorites. The volatile element, e.g., C and Na, supplies show intra-annual variations. Yet, it may not affect their annual average abundances or correlate with observed seasonable variations in the mesospheric alkali element abundances. Condensed meteoric dust is scarce, except perhaps for nanometer size Fe-oxides or Fe-oxyhydroxide.

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