posted on Oct, 17 2012 @ 05:04 PM
...so, I've read the article.
I wouldn't mind finding the original source though, which I'm assuming has or will be published in a reputable journal somewhere.
isn't it equally conceivable that the concentration of zinc could be due to meteoric impact, rather than necessarily stemming from the "collision of a
Mars-sized object with an early-earth"? That would seem vastly more likely to me.
I can't imagine a Mars-sized object colliding with earth without significant impact (uh... figuratively, not literally) upon the earth, its orbit and
trajectory, and yet we simply don't see that...
not least of all the fact that the moon simply doesn't seem to fit the necessary criteria to be a product of this planet in geological terms, zinc or
edit on 17-10-2012 by Awen24 because: (no reason given)