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​‘Underground oceans’ potentially have 3 times more water than surface - study

Published time: June 13, 2014 13:33


A scientific study has revealed an enormous reservoir with three times the volume of all the oceans combined in Earth’s mantle. The discovery could shed light on the origin of the planet’s oceans and seas.

Scientists have long pondered where Earth’s seas and oceans originated. Some geologists believe water was brought here on the back of comets that struck the planet millions of years ago, but this new discovery gives credence to an altogether different theory.

"It's good evidence the Earth's water came from within," Steven Jacobsen of Northwestern University in Evanston, Illinois, who co-authored the study in Science journal, told the New Scientist. “I think we are finally seeing evidence for a whole-Earth water cycle, which may help explain the vast amount of liquid water on the surface of our habitable planet.”

The research appears to back up the idea that Earth’s oceans gradually oozed out from the planet’s interior.

“We should be grateful for this deep reservoir,” s
aid Jacobsen. “If it wasn't there, it would be on the surface of the Earth, and mountain tops would be the only land poking out.”

The study revealed the water itself is actually hidden away 700km under the surface in a rock known as ringwoodite. The substance lies in the mantle – a layer of hot rock that separates the Earth’s surface from its core.

Jacobson suggests that this layer might act like a buffer for the world’s oceans and may explain why they have stayed the same size for millions of years.

To find Earth’s inner ocean, Jacobson and his team used 2,000 seismometers to measure the seismic waves produced by over 500 earthquakes.

The researchers then calculated the speed of the waves as they passed through different layers of rock. They eventually picked up on the ringwoodite because the waves significantly slowed down, suggesting the presence of water.

“It's rock with water along the boundaries between the grains, almost as if they're sweating,” said Jacobsen. He examined how ringwoodite might behave 700km beneath the surface by creating the same conditions in the lab, exposing samples to massive temperatures and crushing pressure.

This study has only revealed evidence of ringwoodite beneath the US and Jacobson now wants to find out whether the substance exists in other parts of the globe, reports New Scientist.

Comments (47)


Gary Sellars 20.07.2014 19:42

What it sheds light on is where the waters went after the worldwide flood that the atheists deny yet hundreds of cultures around the world have some sort of historical/legendary record of the flood of Noah's day.

One must remember that the people who control the greater bulk of the media *and* education won't allow this stuff to be seen by the public, but notice that we don't have concrete evidence for any cultures over 4500 years ago yet the liars claim man has been around for scores of thousands of years, YET NO EVIDENCE.

A gain, neither the "educational&qu ot; establishment NOR the media will put the truth in your face.


David Kim 16.06.2014 16:13

My guess is that there are at least 9 Homo Capensis conehead skulls left, one in each nuclear state. They are acting like they can survive this nuclear holocaust. Don't they remember what happened last time on Mars? Anyway, we don't need to really worry about the Capensii in North Korea. He's become somewhat of a pariah among coneheads.


LindaJames 15.06.2014 16:43

That's a preposterous assumption

View all comments (47)
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