A Microscopic Layer of Diamonds Beneath the Surface of North America

Posted on January 2, 2009  Comments (2)

Diamonds show comet struck North America, scientists say

A discovery of microscopic diamonds a few feet beneath the surface of North America reveals that a comet caused a cataclysm of fire, flood and devastation nearly 13,000 years ago that extinguished mammoths and mastodons and dealt a blow to early civilization, scientists said Friday.

The nanodiamonds, so small that they are barely visible in an electron microscope, are thought to be remnants of that comet, which would have hit about 65 million years after the much larger collision that wiped out the dinosaurs.

Battered by fire and ice, as many as 35 species of mammals, including American camels, the short-faced bear, the giant beaver, the dire wolf and the American lion, either immediately vanished or were so depleted in number that humans hunted them to extinction.

The humans, a Paleo-Indian grouping known as the Clovis culture for the distinctive spear points they employed, suffered a major population drop, disappearing in many areas for hundreds of years.

gems can only be created under the extreme temperatures and pressures of a massive explosion, such as a comet striking the Earth’s surface.

“There’s no other way we can interpret the presence of these diamonds other than an extraterrestrial impact,” said James Kennett, a paleooceanographer.

Such an impact would be the most likely source of nanodiamonds, critics agreed. But many argued that the one-page paper in Science did not provide enough evidence to support the authors’ claim.

“Nanodiamonds could be a good indicator of an impact event . . . but after reading the paper, I wasn’t convinced they found diamonds,” said physicist Tyrone Daulton of Washington University in St. Louis. “Maybe they found diamonds and maybe they didn’t.”

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2 Responses to “A Microscopic Layer of Diamonds Beneath the Surface of North America”

  1. Anonymous
    January 3rd, 2009 @ 11:54 pm

    we always take our prescence in the planet for granted… until one day , as we can see it happened many times before, we will be forced to face an event of cataclismic proportions… it is NOT a matter of IF.. but more a matter of how and when… so be happy for living everysingle day :)

  2. Matt
    January 5th, 2009 @ 1:35 am

    Neat! More or less like iron in the sense that the energy during big bang was not enough to create iron on earth, hence all the iron found on earth would have to come from some sort of extraterrestrial debris.

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