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 ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
