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Thread: Continental Collision: The Future Earth

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    Continental Collision: The Future Earth



    We are entering a new phase of continental collision that will ultimately result in the formation of a new Pangea supercontinent in the future. Global climate is warming because we are leaving an Ice Age and because we are adding greenhouse gases to the atmosphere.



    If we continue present-day plate motions the Atlantic will widen, Africa will collide with Europe closingthe Mediterranean, Australia will collide with S.E. Asia, and California will slide northward up the coast to Alaska.



    New subduction zones along the eastern coasts of North America and South America will begin to consume the ocean floor separating North America from Africa. About 100 million years from now the present-day Mid-Atlantic Ridge will be subducted and the continents will come closer together.



    The next Pangea, "Pangea Ultima" will form as a result of the subduction of the ocean floor of the North and South Atlantic beneath eastern North America and South America. This supercontinent will have a small ocean basin trapped at its center.

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    The Beginning will become the End and the End the Beginning! Yes and I am sure that our folk will still be hear at that point. The only thing I disagree with you on is that we a leaving an ice age. I have concluded that we are just in a warm phase of an ice age very similar to that of the Viking age. However yes we are contributing to speed at which this phase has taken…but because of our contribution more than likely we will re-enter a true ice age within the next 150 years or so. Now let me state that I am not a scientist…but I am a historian and I have always looked at environmental factors on ancient and medieval societies. I think that a lot of climatologist would be greatly served by looking at the history of the earths environmental and climatic changes.
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    Interesting...looks about right

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    An alternative scenario to Pangaea Ultima is Amasia which could be formed by the merger of Asia and North America.

    It could be brought about if the Atlantic Ocean mid-ocean ridge continues spreading while the Eurasian continent rotates under the Northward impulse of Africa.

    Australia and Antarctica may be driven northeastward in a process that consumes much of the Pacific Ocean. The modern day Atlantic would then have grown into the largest component of the new world ocean.

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    Quote Originally Posted by Eiríkr View Post
    An alternative scenario to Pangaea Ultima is Amasia which could be formed by the merger of Asia and North America.

    It could be brought about if the Atlantic Ocean mid-ocean ridge continues spreading while the Eurasian continent rotates under the Northward impulse of Africa.

    Australia and Antarctica may be driven northeastward in a process that consumes much of the Pacific Ocean. The modern day Atlantic would then have grown into the largest component of the new world ocean.
    That could happen…but it will take even longer to push North America across the Pacific. There are a multitude of plates in and surrounding the Pacific which will make this scenario a little less likely.
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    Europe is going to be pushed torward north by Africa, I see -> Cooolder and more snow! And there will be a very big, very high mountain range as a border between Europe and Africa where nowadays is the mediterrean sea. Thats also not bad, since it is a more secure border than the plain sea. :p (And there can´t be too much mountain ranges on the globe! )

    ...oh, but I nearly tend to forget that in this very very distant future the possibility that humans exist (even in a more evoluted form) is very...low. :o

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    If the Aussies end up in Asia, it can't be wrong.
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