Asia and America Will Collide in Millions of Years to Form Supercontinent Amasia

supercontinent-amasia

In the next 50 to 200 million years, all of Earth’s continents will be once again pushed together into a Amasia, a single landmass around the North Pole. This conclusion comes from a computer model that has been emulating the slow movements of the continents over the next millions of years.

The last supercontinent was formed 300 million years ago, Pangea, and the land masses were grouped together around the equator. After having examined the geology of the mountain ranges around the world, geologists had previously thought that the next supercontinent would be in the same place as Pangea, it would close up the Atlantic Ocean, or it would be in in the middle of the Pacific Ocean.

formation-amasia

However, Ross Mitchell, a geologist at Yale University in New Haven, Connecticut, and his colleagues have other ideas. They analyzed the magnetism of ancient rocks to work out their locations on the globe in the past, and measured how the mantle moves the continents that float on its surface. They discovered that instead of staying near the equator, the next supercontinent would form over the Arctic.

Mitchell et al. think that this is part of a pattern since Pangea formed at about 90 degrees to the previous supercontinent Rodinia, and Rodinia at about 90 degrees of Nuna, which existed 2 billion years ago. Amasia would find itself 90 degrees from where Pangea was positioned on the globe.

This new model is called orthoversion, contrary to introversion, where a supercontinent forms exactly where Pangea was, or extroversion, where it moves to the other side of the world but staying on the equator.

Orthoversion clears up a conundrum that has been on geologists’ minds for decades since it models where the next supercontinent will be placed. The other possible future supercontinents were Pangea Ultima and Novopangea.

[via Nature]

1 Comment on "Asia and America Will Collide in Millions of Years to Form Supercontinent Amasia"

  1. Madanagopal.V.C. | September 11, 2012 at 11:05 am | Reply

    Tectonic plate movements on our globe earth, clearly states a northern driven force only since the time of Pangea Super-continent. Indian plate was hurled from its mother Australia northwardly to sail and impinge on Asia continent to form the Great Himalayas.Africa is also closing in on Europe and one day Red Sea will vanish and get a mountain there. If we turn the globe south pole head on we will find mostly oceans and sparse continents. Americas and Europe almost close together at greenland towards arctic. Even the previous version of super continent Rodinia was also north bound. It should be borne in mind that earth rotates west to east causing the land mass to be lopsided north. If the spin were from east to west the story would have been otherwise. Hence formation of Amasia is certain in another 300 milion years as stated in the research. One more small point I want to make here. The smaller landmasses of Australia and others down the south of Pacific plate are bound southwards due to Reaction of impingement of mega plates. Plate tectonics are not confined to Earth alone. It is universal for any heavenly spherical terrestrial planet like Moon, Mars etc. Blowing a sphere like a glass bulb blown is possible only when its core is in a very hot gaseous state. These spherical bodies will also show geo magnetism. Phobos and Deimos of Mars are mere stones like any other asteroids and not a regular satelite like moon with no gaseous core. One interesting axiom is that north pole or south pole of any planet would be a stable plate whatsoever. Thank you and we will welcome Amasia so as to bring together Americans and Asians.

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