The Mariana Trench, the world's deepest point at 10,925 meters, absorbs 3 trillion tons of seawater at a rate of 3 billion tons every year, and after nearly 1 million years of accumulation, a total of 3 trillion tons of seawater is absorbed.
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It is recorded in the "Liezi Tangwen" that in the depths of the vast sea, there is a mysterious place called Guiru, which is the place where all the sea water converges, swallowing a large amount of sea water like a bottomless pit, and the ancient people thought that this was just a legend, but they never thought that this place was real.
This legendary ruin is the Mariana Trench, the deepest point in the world, which was formed 60 million years ago as a result of the collision of oceanic and continental plates.
Its deepest place is 6~11 kilometers, is the deepest known ocean, where the water pressure is high, completely dark, the temperature is low, the oxygen content is low, and the food resources are scarce, so it has become one of the harshest environmental areas on the earth, if the world's highest Mount Everest is placed at the bottom of the ditch, the peak can not be exposed to the water.
The Mariana Trench has always been covered with a veil of mystery, attracting scientists to continue to go ahead and follow, and as people continue to explore, they gradually uncover its secrets, which are really legendary ruins.
In 2012, Williams, a professor of earth and planetary sciences at the University of Washington, published an article pointing out that he and his team studied the seafloor conditions of the Mariana Trench in detail through undersea earthquakes and hydrophones, and found that the world's deepest trench seems to be constantly swallowing up large amounts of seawater.
He further calculated that the trench swallows up to 3 billion tons of seawater every year, and in nearly a million years, it swallows up 3,000 trillion tons of seawater.
Other scientists confirmed this in subsequent explorations, discovering a strange and persistent sound wave, which is very unique and unlike any sound wave ever found before, and after a lot of research, scientists determined that the source of the sound wave was water currents, and those currents were the water that was being swallowed.
At the same time, scientists gradually feel more surprised and puzzled, although the Mariana Trench swallows such a terrifying sea water every year, the earth's sea level has not dropped significantly, but continues to rise.
As for the reason for the rise in sea level, it is easy to understand that it is because global warming has accelerated the melting of glaciers, which turn into water and flow into the sea, which naturally leads to sea level rise, which has been rising at a rate of 3.2 millimeters per year since the 80s of the last century.
However, this is a drop in the bucket compared to the sea water swallowed by the Mariana Trench, and where the swallowed sea water goes has become a question that has puzzled scientists for many years.
It was not until 2022 that a large-scale interdisciplinary study led by Chinese scientists and jointly participated by many countries finally solved this unsolved mystery.
Previously, scientists generally believed that the sea water swallowed by the Mariana Trench would eventually remain in the "transition zone" between the Earth's lithosphere and asthenosphere because the special conditions created by the temperature and pressure of this transition zone prevent water molecules from continuing to move downward.
But new research disproves this claim, showing that seawater does not stop there, but follows the action of mantle convection.
It is constantly being taken into the deepest depths of the earth's interior.
There, seawater is modified by high-temperature and high-pressure conditions, fully exchanged and circulated with the high-temperature lava of the Earth's magmatic sphere, turning from liquid water to minerals and integrating with the asthenosphere.
Later, as the volcanic eruption rushes into the sky, the minerals turn back into water vapor, which returns to the atmosphere through evaporation, participates in the atmospheric cycle, and finally returns to the ocean, and scientists have indeed found the presence of water in the crater, which is evidenced by the fact that scientists have found this.
Instead of erupting with the volcano, the other part cools down and becomes part of the earth's crust, but the material also returns to liquid water when it returns to the crust, seeps into the groundwater, and eventually flows to the sea.
It can be said that the Mariana Trench is like a conveyor, as the earth's crust moves, sending seawater into the earth's internal circulation, and eventually returning to the sea in another way.
So, although the seawater is pumped from the Mariana Trench, the dynamic balance of the global water cycle is not broken, and it has too much impact on sea levels.
From a macro point of view, in fact, the earth is like a big fish tank, and humans are the fish raised in it, and the Mariana Trench is the water inlet of the water filter, which maintains the operation of the entire earth's ecosystem, which also has to make people sigh at the magic of nature.
Source: Wikipedia Mariana Trench
