Millions of years ago, rivers flowing westward across what is now - TopicsExpress



          

Millions of years ago, rivers flowing westward across what is now northern Brazil reversed their course to flow toward the Atlantic, and the mighty Amazon was born. A previous study suggested that the about-face was triggered by gradual changes in the flow of rock deep beneath the continent. But new computer models hint that the U-turn resulted from more familiar geological processes taking place at Earth’s surface.
Posted on: Wed, 16 Jul 2014 18:22:43 +0000

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