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Monday, March 17, 2014

The Earth's Crust may contain a lot of water

A small crystal trapped in a rough diamond, who was thrown from 400 kilometers below the earth's surface, hinting that there may be a lot of water deep in the earth.
A diamond from Juína, Brazil, containing a water-rich inclusion of the olivine mineral ringwoodite. (Picture from: http://www.foxnews.com/)
In a report published in Nature magazine, a scientific group said that the X-ray analysis and spectroscopic above a small diamond found in the magma of a volcano in Brazil showed 40 micrometers mineral named by ringwoodite. Further analysis revealed that the crystal lattice contains at least 1.4 percent water.

Ringwoodite is a type of mineral olivine, which form the bulk of the Earth's mantle. Olivine does not absorb water. However, under 400 km, heat and enormous pressure to change the crystal structure, and the resulting substances can contain 2.5 percent water.

Scientists say there is a possibility that the place where the diamond was formed which contains a lot of water vapor high pressure can cause volcanic eruptions. *** [EKA | FROM VARIOUS SOURCES | VOA NEWS]
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