It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Analysis of lunar rocks brought back by the Apollo missions shows they have heavier forms of zinc - a telltale sign of the impact billions of years ago.
Originally posted by Awen24
...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 no zinc.edit on 17-10-2012 by Awen24 because: (no reason given)
So if you find that a sample has the same oxygen isotope composition as one from Earth, then it’s very likely the sample came from our world.
Previous research has established that the oxygen isotope composition of lunar samples is indistinguishable from that of Earth.
However, a comparative analysis of titanium from the moon, Earth and meteorites, indicates the moon's material came exclusively from Earth.