Quote: In any case, before resorting one more time to the meteor excuse I'd like to see a reason why this didn't come from the other obvious source: volcanic eruptions.
Jupiter, as far as I know, has no active volcanos. Only Io, it's moon, has volcanic activity. Jupiter however, Sir, has a core hotter than the Sun... and therefore, this could be the reason for this conclusion. Also remember Jupiter is much bigger than our Sun (it's barycenter with the Sun actually lies above the Sun's surface (1.068 solar radii from the Sun's center).
I hope this is reason enough to change your conclusion and help you see "why this didn't come from the other obvious source".
You are correct, lopside. But Jupiter do have tangerine trees and marmalade skies. I met a girl there who had diamonds on the soles of her shosen and calliope eyes.