Scientists announced today that they have discovered a massive reservoir under the Earth's mantle which may contain more water than all the ocean's combined. According to Canadian researchers, analysis of a rare mineral points to the huge store of water deep in Earth's mantle, 400-600 kilometres (250-375 miles) beneath our feet. Continue reading for an Earth documentary and more information.
The Daily Mail reports, "The evidence comes from a water-loving mineral called ringwoodite that came from the so-called transition zone sandwiched between the upper and lower layers of Earth's mantle, they said in the journal Nature. Analysis shows that 1.5% of the rock comprises molecules of water. The find backs once-contested theories that the transition zone, or at least significant parts of it, is water-rich, the investigators said."