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In article <gDnSf.827359$x96.209786@attbi_s72>,
"George" <george@xxxxxxxxxxxxxxxxxxxxx> writes:
> If the earth impact theory of lunar formation is correct, much of the SiO2
> could have originally formed during the creation of the solar
> system...
I don't disagree with most of what you wrote, but I'd quibble with
the above. As far as I can tell, most SiO2 in the solar system was
probably created well before the solar system formed. Gas densities
in protostellar disks don't seem to get high enough for dust
condensation, unless there's recent work I'm not aware of.
If you are suggesting that pre-existing dust particles were converted
to SiO2 during solar system formation, I withdraw the quibble but
would like details.
--
Steve Willner Phone 617-495-7123 swillner@xxxxxxxxxxxxxxx
Cambridge, MA 02138 USA
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