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Scientists show how the supercontinent will be next



Moving the tectonic plates will cause the planet's continents to get together in about 200 or 250 million years.

Within 200 or 250 million years, our planet will look absolutely different from today, as all current continents come together in supercontinent & # 39; new. Researchers Mattias Green (Bangor University, United Kingdom) and Hannah Sophia Davies and Joao C. Duarte (University of Lisbon, Portugal) detail in an article for The Conversation what this process would be.

From the beginning, experts explain that the tectonic plates that form the Earth crust are consistently offered, moving at a speed of a few centimeters per year. This means, in other words, in geological terms, that the continents come together in a narrow representative, who are waiting for each other for a few hundred million years before share again.

The last supercontinent, Pangea, was formed around 310 million years ago and it began to separate around 180 million years ago. The next one is expected to be created in about 200 or 250 million years. The Pangea barrier led to the formation of the Atlantic Ocean, which still opens and expands, while Ocean Ocean closes and narrows. The authors of the article also recall that the Pacific Ocean is home to a circle of diving rounds along its edge (Ring of Fire), while the Atlantic has two only.

According to the researchers, there are four basic situations for the formation of the next supercontinent: Novopangea, Pangea Ultima, Aurica and Amasia.

Novophagea
If the current conditions are being maintained – with the opening in the Atlantic and Pacific Ocean declining – the next supercontinent will form the other side of the old Pangea, says experts. America will be confronted with Antarctica, who has moved to the north, and then with Africa and Eurasia that have already joined, to create the Novopangea of ​​the name.

Last Pangea
If the expansion of the Atlantic slows down and begins to close, its two small subtraction surfaces could extend along the eastern eastern coast, which would lead to recreation from Pangea. America, Europe and Africa would come together again in a supercontinent of the name Pangea Ultima, which would be surrounded by superocean Pacific Ocean.

Aurica
On the other hand, if new conveyancing zones appeared in the Atlantic, both burners could be closed, and a new ocean basin would have to be replaced.

Amasia
Finally, the fourth scenario assumes "a completely different destiny for the Earth in the future", researchers say. In this sense, they emphasize that a number of tectonic plates, including Africa and Australia, are currently moving northwards, which is a process driven by anomalies left by Pangea in the edge of the ground. So you can imagine a scenario where all the continents, except Antarctica, continue to move to the north until they join that Pole in a senior head that has had the hypothesis name of Amasia .

Which scenario is the most likely?
Scientists estimate that Novopangea is the most likely scenario, because it is a logical development of current trends, while the other three cases include additional process interference.

Source and text: RT in Spanish.


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