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Pangea And Where Atlantis Fits In - ORIGINAL

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Author Topic: Pangea And Where Atlantis Fits In - ORIGINAL  (Read 4851 times)
Bianca
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« Reply #30 on: June 14, 2008, 11:58:53 am »









atalante
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   posted 07-27-2004 08:31 AM                       
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Since about 1995, scientists have been able to talk about the history of continents BEFORE pangea.
For example, the continent called Rodinia existed approximately 1 billion years ago.

John Rogers, a geologist at the University of North Carolina, has spearheaded the new outlook for ancient continents.

It seems that continental material has been forming, somewhat continually, throughout the last 3 billion years.

On the continent of Rodinia, all the surface rocks which formed 3 billion years ago were clumped together. They included what is currently the sub-continent of India.

However after time passed, more continental material formed, and the continent called Pangea came into being. At that time, the clump of 3-billion-year-old rocks was located close to the current region called Madagascar. But they became unstable, and broke apart. And during the breakup, they shoved India into a collision course with Asia.

One of the interesting issues proposed in the new geology is that the old continents never "sink".

For example, the continent of Atlantica formed 2 billion years ago. But it split apart when the Atlantic Ocean began widening. Today, half of Atlantica forms the east coast of South America, and the the other half of Atlantica forms the central-west coast of Africa.
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