W e are interested in the fate of the elements which make planets, during the pre-planetary stages of the solar system. The C1 dust has the composition of the Orgueil carbonaceous chondrite, neglecting the noble gases. Hence the C1 dust is more oxidizing than the OC dust, for the same enrichment factor relative to solar. S ome of the results of our calculations are illustrated here, however the dimensions may be slightly distorted due to image reduction techniques. A 'preprint' of our most recent work is reproduced in a web-page format on this site.
H ere the distribution of iron between condensed phases is shown, as a dust-enriched gas condenses.
S ulfides of Fe and Ni are found as rims on rounded Fe-Ni alloy grains in many chondrites. Many workers have called on some kind of dust enrichment, which would cause FeO to condense into olivine well before it does in a purely solar bulk composition. Technical Details S pecies present in the calculation. Last modified Aug 21, 1998.