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Know from where does all the Earth's gold come from

New Delhi: Researchers at the University of Bristol have provided  clear evidence that the planet's accessible reserves of gold are the result of a bombardment of meteorites more than 200 million years after Earth was

PTI Published : Jul 17, 2013 23:59 IST, Updated : Jul 19, 2013 6:29 IST




Willbold's group reported in a paper that levels of certain isotopes in the newer rocks are slightly lower than in the old ones, indicating an addition of precious metals similar to what meteoric impacts would have produced.

Beyond sprinkling the planet with riches, Willbold believes the meteor shower could have helped deliver the ingredients necessary for life: “Most of the water on Earth today may have also been brought during that late bombardment.”

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