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Gold came from Space

posted by Di-G on

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"Gold came from Space"

★ New research discovers that the gold and precious elements we see today may have originally come from a a bombardment of meteorites more than 200 million years after Earth was formed.

★ During the formation of Earth, molten iron sank to its centre to make the core.

★ This took with it the vast majority of the planet's precious metals -- such as gold and platinum. 

★ In fact, there are enough precious metals in the core to cover the entire surface of Earth with a four-metre thick layer.

★ Then how come we find gold and other precious elements on Earth's mantle noticeably more than expected as most has sunk to the core ?

★ The answer is, it has come from a meteorite shower that hit Earth after the core formed. The full load of meteorite gold was thus added to the mantle alone and not lost to the deep interior.

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