--- "E.P. Grondine" <[EMAIL PROTECTED]> wrote: The problem still remains what caused sufficient number of atoms of the same type to be in the same place at the same time to produce the crystals and glasses observed.
I think crystal formation in a fluid preceded the choundrule formation. Seems standard mineralogy and crystalography answer the how. The proto planetary disk was a fluid. Molecules of a feather flock together even in low gravity fields. Each undefined circuit through time and space was another opportunity for like molecules to sort themselves onto a latice. Whatever duration this crystal formation epoch existed, it seemes to have been abruptly forclosed to subsequent growth.(e.g. Depletion of the stock of molecules by a sweeping solar megawind that sorted the natural abundance of the elements in the solar system based on atomic weight?) One current theory is that a period of intense mega-lightening 500 million miles long flash-melted the chondrules. If this were the case perhaps the vitrified spherical globs slowly restored the crystal lattice within the confines of the sphere. I think this is a part of the answer but not the whole story. Elton ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
