Saturday , August 17 2019
Home / unitedkingdom / Discovered: Four different ways Earth may look when the next supercontinent is formed

Discovered: Four different ways Earth may look when the next supercontinent is formed



Mattias Green, Hannah Sophia Davies and Joao C. Duarte when writing a conversation

The outer layer of the earth, the hard coral length in which we walk, consists of broken pieces, like the shell of broken eggs. These pieces, tectonic plates, move around the planet at a few centimeters per year. Every so often they come together and merge with the supercontinent, which remains a few hundred million years before the split. Then the plates dissipate or disperse and move from one another, and after all – after 400-600 million years again – again come back together.

The last supercontinent, Pangea, was about 310 million years ago and began to divide about 180 million years ago. It is proposed that the next supercontinent will be formed over the course of 200-250 million years, so we are now halfway through the scattered phase of the current supercontinent cycle. The question is: how will the next supercontinent form happen and why?

There are four main scenarios for the next supercontinent: Novopangese, Pangea Ultima, Aurica and Amasia. How each form depends on different scenarios, but ultimately is due to how Pangea is separated and how the continents of the world are still moving today.

The collapse of the Pangea led to the formation of the Atlantic, which is still open and becoming more widespread today. As a result, the Pacific Ocean closes and becomes narrower. On the Pacific coast there is a ring of indigenous zones ("fire ring"), where the ocean floor is descended or subducted under the continental plates and inside the earth. There, the old ocean floor is recycled and can enter volcanic plum. In contrast, the Atlantic Ocean has a great ocean of sin that produces a new oceanic plate, but it has only two subduction zones: the Small Antilles in the Caribbean and the Scotia Arc between South America and Antarctica.

1. Novopang

If we assume that today's conditions continue to allow the Atlantic to continue to open and the Pacific continues to close, then we have a scenario in which the next supercontinent forms Pangea antipodes. In America, fight against Antarctica to the north and then to the already angry Africa and Eurasia. After that, the super-continent was called Novopanje or Novopangas.


Source link