Amasia: The Supercontinent

A new will form by merging Asia and the two Americas:

• Over the next 200-300 million years, the Americas and Asia will merge to form a new supercontinent named “Amasia” due to the shrinking of Pacific Ocean.
• Pacific Ocean is shrinking by nearly an inch every year and will result in disappearing of the Arctic Ocean and Caribbean Sea.
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• What does researchers say about supercontinents?

  
  
  
• Earth's supercontinents are formed in vastly two different ways - introversion and extroversion.
  
  
  • The former involves the closure of the internal oceans formed during the break-up of the previous supercontinent
  • The latter involves the closure of the previous external super ocean

  • Why Amasia?

    
    
    
  • It is believed that the Pacific Ocean will close (as opposed to the Atlantic and Indian oceans) when America collides with Asia.

  • What is Amasia?

    
    
    
  • As per the estimations made by a supercomputer, Australia would join the continent Asia as the Americas will be dragged to the west.
    
    
    • The masses will finally come together when Africa closes in on Europe and Antarctica will join South America.
    
    
  • The thickness and tensile strength of the tectonic plates beneath the seas had decreased over time as a result of Earth cooling over the course of billions of years since its birth.
  • The Atlantic or Indian oceans are believed to be
    relatively young oceans and might develop as a result of the Earth's
    most recent supercontinent breaking apart and its fragments slowly
    drifting away.
  • Every 600 million years, a supercontinent develops on Earth. This is known as the supercontinent cycle.
    
    • Pangaea, the latest and most well-known, was founded around 300 million years ago and split between 120 and 130 million years later.
    • This means that the current continents are due to come together again in a couple of hundred of million years’ time.
    
    
  • The team discovered that the closing of a previous super ocean that
    had previously encircled a once-colossal land mass increases the
    likelihood.
    

  • What will be the changes?

    
    
    
  • The Earth's eco-system and biodiversity would be drastically altered by the collision of continents
  • The sea level is expected to be lower.
  • The vast interior of the supercontinent will be very arid with high daily temperature ranges.

  • How an Island is created by underwater volcanic activity?

    
    
    
  • The passive lava flow on the seafloor hardens into
    rock and builds height of the underwater mountains, the formation is
    taken place in million years giving birth to “Volcanic Islands”.
    
    
    • Some volcanoes which reach heights above the seafloor resulting in the lower pressure resulting in the explosive eruptions.
    • The magma supply of the plate tectonic plays a large part in determining which submarine volcanoes will form islands
      The tectonic activity sometimes takes the island volcano away from the source of magma.
      Magma is originated in the mantle caused by moving and growing of the tectonic plate with the formation of volcano.