Know about five oceans on Earth? The sixth has just been discovered

1. evidence of considerable quantities of water between the Earth’s upper and lower mantle.
2.  analysis of a rare diamond that formed 660 kilometers below the Earth’s surface 
3. Prof. Frank Brenker
4. Institute for Geosciences at Goethe University

1. Diamond from Botswana that formed at 660 kilometers below the surface of the planet at the interface between the transition zone and the lower mantle.
2. Analysis of the diamond using Raman spectroscopy and FTIR spectrometry
3. ringwoodite inclusions which exhibit a high water content.
4. transition zone is not a dry sponge, but holds considerable quantities of water 

The team explains that the transition zone’s high-water content has far-reaching consequences for the dynamic situation inside the Earth and if it is to be breached, it could lead to a mass movement in the crust.

1. 660km boundary between the mantle transition zone and the lower mantle.
2.  transition zone (TZ), the boundary layer that separates the Earth’s upper mantle and the lower mantle. 
3. located at a depth of 410 to 660 kilometers, 
4.  immense pressure of up to 23,000 bar
5. olive-green mineral olivine to alter its crystalline structure.

1. Olivine constitutes around 70 percent of the Earth’s upper mantle
2. is also called peridot. 
3.  at a depth of about 410 kilometers, it is converted into denser wadsleyite; 
4. at 520 kilometers it then metamorphoses into even denser ringwoodite.
5. “These mineral transformations greatly hinder the movements of rock in the mantle. 
6.  there is a whole graveyard of such plates in this zone underneath Europe,”