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2007年9月24日 星期一

Earth after 250 million years 2億5千萬年後的地球


After 250 million years, the now separating continents on the Earth may be again clustered together (OMG! there must be many disastrous earthquakes!).

Is this what will become of the Earth's surface? The surface of the Earth is broken up into several large plates that are slowly shifting. About 250 million years ago, the plates on which the present-day continents rest were positioned quite differently, so that all the landmasses were clustered together in one supercontinent now dubbed Pangea. About 250 million years from now, the plates are again projected to reposition themselves so that a single landmass dominates. The above simulation from the PALEAOMAP Project shows this giant landmass: Pangea Ultima. At that time, the Atlantic Ocean will be just a distant memory, and whatever beings inhabit Earth will be able to walk from North America to Africa.(Astronomy Picture of the Day)

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