Awani Review

Complete News World

There will probably be no more Pacific Ocean in 300 million years

There will probably be no more Pacific Ocean in 300 million years

The Pacific Ocean, which covers a third of the Earth’s surface, ceased to exist within 300 million years. He would approach to allow a supercontinent to exist on Earth.

Our largest circumference planet not eternal. In 200 to 300 million years, the Pacific Ocean will likely no longer exist. It will close, to make way for the giant subcontinent, Amasya. In any case, this is what scientists expect, in a study published by a publishing house National Science Review On September 28, 2022, it was spotted by universe today October 10.

One of the main characteristics of Earth’s tectonic evolution It is the cycle of the supercontinents for about 2 billion yearsThe researchers point out, Which is characterized by the periodic assembly and spread of the main continents at a periodic rate of about 600 million years. The way these continents meet is related to the plate tectonics themselves (their properties) and their interaction with the Earth’s mantle.

Ocean closure, or diastole, occurs when continents unite. Here, North America and Asia will come together, closing off the Pacific Ocean. There will then remain the Atlantic and Indian Oceans, which will form a vast and unique ocean.

a subcontinent It is a continent made up of several other continents. Strictly speaking, we are talking about a supercontinent when it includes at least 75% Land masses are present.

It turns out that the Earth has been cooling for billions of years, as mentioned statement From Curtin University (Australia) presents the new study. As a result, the thickness and resistance of the plates under the oceans weaken over time. According to scientists, this phenomenon has a consequence: it is unlikely that the next supercontinent will be assembled with the closure of relatively small oceans, such as the Atlantic or the Indian Ocean.

See also  The formation of planets around dozens of stars has been better documented

The Pacific Ocean will approach to make way for the continent of Amasya

Researchers came to this conclusion using a supercomputer, simulating the evolution of plate tectonics, which led to the formation of a supercontinent. According to them, it is very likely that the Pacific Ocean will close in less than 300 million years. This would lead to the formation of Amasia, with America and Asia (hence the name given to the continent) colliding. ” Model results predict that the next supercontinent, Amasia, will be formed by the diastasis that closes the Pacific Ocean ‘, they summarize in their study. Australia is expected to hit Asia first, before connecting America and Asia with the ocean closure.

The possible formation of the supercontinent in 280 million years. // source : Curtin University

This projection reminds us that the existence of the Pacific Ocean is not static. Even in the past, it wasn’t always there. The Pacific Ocean is itself a remnant of an ancient ocean, the Pantalasa. It was the only ocean that surrounded Pangea, the last super continent that had begun to disintegrate long ago. 180 million years.

In general, this confirms to what extent the existence of the present seven terrestrial continents is just a stage in the geological history of our planet. In 200 to 300 million years, the Earth could be completely different. We are only in middle of the current session Assemble and disperse the supercontinent. Furthermore, the emergence of Amasya is only one of the four envisaged scenarios for the formation of the next supercontinent.

For more

The island was born in Hum Reef.  // Source: NASA