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Article: Scientists discover Amazon river is 11 million years old

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Xinhua News Agency
Article date:
July 29, 2009
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Scientists discover Amazon river is 11 million years old

WASHINGTON, July 29 (Xinhua) -- A team of scientists have discovered that the Amazon river, and its transcontinental drainage, is around 11 million years old and took its present shape about 2.4 million years ago. The study was published in the July issue of U.S. journal Geology.

University of Liverpool researchers, in collaboration with the University of Amsterdam and Petrobras, the national oil company of Brazil, analyzed sedimentary material taken from two boreholes near the mouth of the river to calculate the age of the Amazon river and the Amazon deep sea fan.

Prior to this study, the exact age of the Amazon, one of the two ...

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