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Earth has a secret reservoir of water, say scientists

Published on Mar 13, 2014 4:39 AM

PARIS (AFP) - A hundred and fifty years ago, in "Journey to the Centre of the Earth", French science-fiction forerunner Jules Verne pictured a vast sea that lay deep under our planet's surface.

Today, that strange and haunting image has found an unexpected echo in a scientific paper.

Writing in the journal Nature, scientists on Wednesday said they had found an elusive mineral pointing to the existence of a vast reservoir deep in Earth's mantle, 400-600 kilometres beneath our feet.

It may hold as much water as all the planet's oceans combined, they believe.

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