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7 incredible facts about the Mariana Trench

Scientists told about the secrets of the Mariana Trench

The study of the bottom of the Mariana Trench has allowed scientists to establish that the earth’s mantle contains 3-4 times more water than previously thought.

Geologists have been arguing for many years about how much water gets into the bowels of the earth along with the “sinking bark.” This question was answered by a detailed study of the Mariana Trench. This oceanic trench is a subduction zone, where one lithospheric plate as if “dives” under another.

American scientists have found that the “sinking” layer goes deeper into the crust for several tens of kilometers, while maintaining the composition and structure. This means that much more sea water enters the mantle along with the rock. According to the estimates of researchers, almost 80 million tons of water has flowed through the Mariana Trench under the planetary crust over the last million years – four times more than according to preliminary forecasts.

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