Gaia Contains Giant, Secret Reservoir of Water, Scientists Say
One 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. That particular zone in the Earth, the transition zone, might have as much water as all the world’s oceans put together.
Writing in the journal Nature, scientists said they had found an elusive mineral pointing to the existence of a vast reservoir deep in Earth’s mantle, 400 to 600 kilometres beneath our feet.
That particular zone in the Earth, the transition zone, might have as much water as all the world’s oceans put together.”
It may hold as much water as all the planet’s oceans combined, they believe.

“This sample really provides extremely strong confirmation that there are local wet spots deep in the Earth in this area,” said Graham Pearson of Canada’s University of Alberta, who led the research.
