[meteorite-list] BO - Barred Olivine Chondrule: RFS Picture of the Day
bernd.pauli at paulinet.de
bernd.pauli at paulinet.de
Tue Oct 2 12:36:52 EDT 2007
Hello again,
I just got mail from Marc Fries. Thank you, Marc! Very much
appreciated. Now, Marc prefers option #3 and so he writes:
"I was thinking option 3), myself. It only takes a thickness variation
on the order of 100 nanometers or so to get that color gradient, and
if it were chemical I'd expect a change in the rim vs. the interior rather
than an uniform gradient across the chondrule."
Rather convincing! Why should the chemical composition within a single
BO chondrule change *gradually*... especially in view of the fact that the
bars are oriented identically!
Best wishes,
Bernd
More information about the Meteorite-list
mailing list