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Massive Extraterrestrial Rock Hit Earth 13 Millennia Ago, According to Nano-Evidence

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posted on Mar, 6 2012 @ 04:59 PM
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Found this interesting article on Popular Science. Might give some credence to the ancient flood myths and the sudden end of the last ice age. Figured some people would like to read this and think about its implications on our past and also what it can mean for humanities future if such an event were to occur again. Have at it guys




About 13,000 years ago, a chunk of a comet or asteroid hurtled into the atmosphere at a shallow angle, superheating the atmosphere around it as it careened toward the surface. The air grew hot enough to ignite plant material and melt rock below the object’s flight path. Within a few microseconds, atmospheric oxygen was consumed and the freed carbon atoms condensed into nanodiamond crystals. An air shock followed several seconds later, lofting these nanodiamonds and other carbon particles into the atmosphere, spreading them around. Mega mammals starved, unable to forage on the scorched earth, and human populations dwindled. The shock on the atmosphere was enough to lower global temperatures for a thousand years. This is according to a new study of ancient Mexican nanodiamonds, and it’s another salvo in a longstanding ancient-climate dispute. The study bolsters the controversial argument that an asteroid impact might have chilled the planet during the Younger Dryas, an abrupt and very short cold interval that started about 12,900 years back.





The sediment layer came from a a 27-meter-long core sample drilled from Lake Cuitzeo as part of a paleoclimate study. The team focused on several microparticles they attribute to widespread burning — such as carbon particulates — and nanodiamonds, which they measured using even more precise techniques than Kennett et al. two years ago. These particles can’t be explained by any terrestrial mechanisms, the authors say. They rule out a rain shower of cosmic particles; wildfires; volcanism; human-related activities; and even particle misidentification (like finding fool’s nanodiamonds). They say a cosmic impact is the only viable hypothesis.


Original Article
edit on 6-3-2012 by unfor54k3n because: (no reason given)




posted on Mar, 6 2012 @ 06:18 PM
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as a kid in 1972 i saw a bollide 1.5 km across at 10,000 feet travelling at 17.500 mph it was videod by someone in america & appears in a book by richard hoagland about mars . never saw any shockwave just heard a whoosh & it was gone . it was the subject of a bbc horizon tv programme in the mid 90s they stated that it would have extinguished life in the northern hemisephere .enjoy every day .thats all folks



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