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Researchers discover an ocean 660 km below the surface of the earth

Posted on October 8, 2015 at 4:05 PM

Scientists discover an ocean 400 miles beneath our feet that could fill our oceans three times over


After decades of theorizing and discussing possibilities, scientists report to finally have discovered a large ocean of water inside the mantle of Earth, and they pint out that it is a large water “tank” that could fill the oceans on Earth three times.

This incredible discovery suggests that the surface water of the planet came from within Earth, as part of a “complete water cycle on the planet” instead of the dominant theory proposed that water arrived to Earth by icy comets that passed by the planet millions of years ago.

Scientists are learning a lot about the composition of our planet even today. And the more they manage to understand, the more accurately will predictions regarding climate change, weather and sea levels get since all of the mentioned above is closely related to the tectonic activity that vibrates incessantly beneath our feet.

 

This study was performed by researchers and geophysical scientists in the United States and Canada who used data obtained from the USArray- which is a set of hundreds of seismometers located throughout the United States to constantly “listen” to the movements of the Earths mantle and core.

 

So researchers believe that the water on Earth may have come from within the planet and was “pushed” to the surface thanks to geological activity.



 

An article published in the journal “Nature” states that researchers have found a small diamond that points to the existence of a vast water reservoir beneath the mantle of the Earth, approximately 600 kilometers beneath our feet.

 

Ringwoodite is a form of the mineral peridot, believed to exist in large quantities under high pressures in the transition zone.

 

Ringwoodite has been found in meteorites but, until now, no terrestrial sample has ever been unearthed because scientists haven’t been able to conduct fieldwork at extreme depths.

 

It is named after Australian geologist Ted Ringwood, who theorised that a special mineral was bound to be created in the transition zone because of the ultra-high pressures and temperatures there.


The lead author of the study Graham Pearson, member of the University of Alberta, Canada said, “One reason why the Earth is a dynamic planet, is the presence of water inside. The water changes depending on the way the world works.”

 

After numerous studies and complex calculations to double check their theories, researchers believe they have found a gigantic pool of water located in the transition zone between the layers of the upper and lower mantle – a region which sits somewhere between 400 and 660 km below the surface.



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