Supercontinent Pangea is formed like?

Perhaps the supercontinents were formed when a hot rock stream erupted from deep within the earth between the continents, pushing them apart until all the land on the earth hit each other.

The finding from a new study shows that, in opposition to the accepted hypothesis, there was such a process that formed the supercontinent Pangea 300 million years ago. Today's continents are thought to have formed from the supercontinent Pangaea.

Scientists believe that the tilting slabs of the earth have formed and broken the supercontinent throughout billions of years. Therefore, they believe that the process of smoking becomes the driving force.

In areas with strong geological activity such as the Great Ring of Fire in the Pacific region, the crust of the earth's crust falls into the interior, this process known as subduction.

This creates a downward flow that draws the continents above it, causing them to collide with each other like the soap bubbles are sucked into each other when the water flows down the water pipe.

But in the new study, J. Brendan Murphu of the University of St. Francis Xavier in Nova Scotia (Canada) and his colleagues showed that the shell of the earth's crust submerged in the middle of the ancient Pacific sunk so deep it reached the core of the earth.

Extreme heat, it bounces like a bubble in a boiling kettle. This phenomenon formed a super strong flow enough to push , not suck, the ancient continents together and form Pangea supercontinent.

Peter Cawood, director of the Center for Tectonic Studies at the University of Western Australia, said the finding was "excellent and stirring".

Expressed by email, Cawood said: ' Although it is just a hint, I believe it is true'.

The beat of the earth

The work of grafting rock formations, checking magnetic fields and fossil classification allowed scientists to trace the formation and breakdown of supercontinent at least 1 billion years ago. The life of the earth today is about 4.5 billion years.

Data show that there are two supercontinents before Pangea, which is Rodinia and Gondwana. They formed and broke hundreds of millions of years ago.

The older supercontinent Gondwana was not the land south of Gondwanaland formed 200 million years ago when Pangea split.

Wouter Bleeker of the Canadian Geological Survey called this cycle 'the beat of the Earth'.

Murphy agrees. He said: 'Most people believe that at least in the past 2.5 billion years, the history of the earth has mainly taken the form of consolidation, breakdown and reunification activities of the continents. location '.

'This is the evolutionary foundation of our planet.'

Arrangement activities

But according to Murphy's new study published this month in the journal Geology, there's something wrong with the supercontinent Pangea model.

The problem, he says, is that geological records clearly show that the formation of Pangea from small pieces of Gondwana happened in two stages.

First, the supercontinent Gondwana splits, creating an expanding young ocean in the center that is very similar to the Atlantic today that separates parts of Pangea.

Then there is a change. Instead of continuing to expand later if the ocean's activity is governed by gravity, it starts to shrink. The continents reversed the cycle and then joined together to form Pangea.

Working like this guitar is named the Wilson cycle. It has been discovered for more than 40 years but the forces responsible for control are still undiscovered.

Besides, if modern models were used to explain the activities that occurred at the time of the Earth's 500 million year old, then supercontinent Pangea could not be formed in its proper shape. .

According to Murphy, the cause of the reverse cycle becomes ambiguous and confusing, though Pangea is the most thoroughly studied supercontinent as 'something we don't understand.'

The new hypothesis of a strong rocky stream that intervenes in the suction process can bring pieces of the puzzle into activities that have happened in the right place, although more data will be needed to reinforce this view.

Murphy said: 'This is only speculative. What we want people to draw from this article is of key importance in understanding Pangea's supercontinent formation process.

The future of the earth

Murphy added that his hypothesis may have implications for the long-term future of the planet.

Right now continents are in the process of converging in the middle of the Pacific where current activities are still ongoing. The continents will combine into a new supercontinent in the next 75 to 80 million years.

But if Murphy's research is correct, the process could be reversed. North America will be pulled back to Europe like the process of forming Pangea.

Murphy added that all of these events are just a scenario that was once considered impossible. Those perspectives make the future of the Earth more interesting.

The figure shows the continents far superior when the supercontinent Pangaea breaks.Some supercontinent has been formed and broken in the history of the earth.It is thought that the suction process is the engine of impact.But a study completed in September 2008 showed that the model did not explain the formation of Pangea.That study hypothesizes that superheated rock and soil from deep within the earth erupted between ancient continents, pushing them apart until they collided to form a supercontinent. ancient.(Photo: D'Acro Editori / Getty Images)