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Re: Mars again
I concur in the conclusion that the same fall dates is just coincidence.
Isn't it the case that to have a stream you go through at a certain time of each
year requires a fair amount of material to be distributed in an ellipse that
intersects the Earth's orbit at those places? I can understand a small particles
from a comet that make up such a stream for annual meteor showers, but how could
you explain kilogram-class falls from a putative SNC stream? Seems improbable
even if they were dated the same, which they're not as Ron points out.
Ron Baalke wrote:
> >As far as the two martian meteorites falling the same month and day could
> >be be dealing in a double impact
> >on Mars in two areas of the planet with simular orbits that happened to
> >fall different years when things were right?? Just a thought, though I
> >don't know how you could prove this other than cosmic exposure age while in
> >orbit.
>
> Chassigny has a cosmic ray age of about 10 million years. Zagami has a cosmic
> ray age of about 2.5 million years. I think this rules out that they
> came from a simultaneous double impact on Mars.
>
> Ron Baalke
>
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