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Rare Diamond Shows Earth's Interior Is All Wet, Confirming Long-Held Theory About Mantle

By David Freeman


A battered diamond that survived a trip from “hell” confirms a long-held theory: Earth’s mantle holds an ocean’s worth of water.

“It’s actually the confirmation that there is a very, very large amount of water that’s trapped in a really distinct layer in the deep Earth,” said Graham Pearson, lead study author and a geochemist at the University of Alberta in Canada. The findings were published today (March 12) in the journal Nature.

A diamond from Juína, Brazil, containing a water-rich inclusion of the olivine mineral ringwoodite.

The worthless-looking diamond encloses a tiny piece of an olivine …read more

Source: Huffington Post Green