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
To test his theory, he measured the isotopic mix of tungsten in rocks from an ancient formation that predates the proposed meteor shower.
He then compared the readings with isotopes found in more recent rocks. “If you look at really ancient rocks in Greenland, the tungsten composition is different,” he says.