At a depth of 660 km, scientists discover evidence of the formation of an ocean in the ground

 away from groundwater, the planet Earth contains large amounts of water, which forms a water ocean in its depths, especially in the area between the upper and lower mantle of the Earth's interior, which confirms that the water cycle on our planet includes the depths of the Earth as well.

This came in a new study by an international team of researchers led by Goethe University Frankfurt in Germany, the results of which were published in the journal Nature Geoscience in its September 26 issue.

According to a report published in Scientific American, this study is expected to have far-reaching implications for our understanding of the Earth's water cycle, and how it evolved into the ocean world.

This discovery comes after a rare diamond extracted from a mine in Botswana (Goethe University Frankfurt) was analyzed.

metal transformations

According to the press release from Goethe University Frankfurt, this large water has been discovered that can be about 6 times the amount of water in all the oceans of the Earth combined.

This discovery comes after an analysis of a rare diamond extracted from a mine in the African country of Botswana, and it is believed that it formed in the lower atmosphere of the earth and at a depth of 660 km below its surface, specifically in an area known as the transition zone (TZ) [The transition zone (TZ)]. , located at a depth of 410 to 660 km.

The transition zone is the boundary layer that separates the Earth's upper mantle from the lower mantle, where tremendous pressure leads to shifts in minerals in the depths of the Earth. Olive-green mineral, which makes up about 70% of the Earth's upper mantle, To "wadsleyite" at a distance of 520 km, and then turns into "Ringwoodite", which is more dense and has characteristics indicating that it is a water element in nature, and it only forms under high levels of pressure and temperatures in the Earth's mantle And it can hold water well.

According to a report by the Scientific American magazine, the diamonds analyzed by the scientific team from this region in the Earth's mantle contain the element ringodite, which indicates that it retains a quantity of water.

ocean sediments

According to the statement of Goethe University, the dense minerals that transform in this region from the depths of the earth or are submerged in it, which are unlike wadislite and rhinodite, olivine, can store large amounts of water, and thus the transitional region is Theoretically able to absorb a large amount of water. Water from the depths of the oceans, especially since most of the Earth's surface is covered by oceans.

"Embedded and metamorphic minerals also carry deep-sea sediments that have returned to the Earth's interior," says Professor Frank Brinker of the Institute of Earth Sciences at Goethe University in Frankfurt.

"These sediments and metamorphic minerals can hold large amounts of water and carbon dioxide, but until now it is not clear how much enters the transition zone in the form of more hydrated minerals and stable carbonates."

And Brinker continues, "In this study, we showed that the transition zone is not a dry sponge, but it contains large amounts of water, and this also brings us one step closer to the idea of ​​the French writer Jules Verne, the most prominent science fiction writer, who predicted the existence of a water ocean inside the Earth."

"This vast reservoir is likely to contain a large amount of sediments and water extraordinary rocks of extraordinary sizes and at pressures," he added.

On the other hand, the Goethe University report says that scientists had already suspected that the Earth's transition zone contained a lot of water after analyzing a similar diamond in 2014, but it was not then possible to accurately determine the chemical composition of the stone, because it was so small.

However, this new study in which the research team from Goethe University achieved great results, especially in determining the exact chemical composition of the elements in the transition region, and the detection of the ringodeite element in it in a large proportion.

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