The ancient Amazon River
October 26, 2006
I love this stuff!
Check out this article summarizing some research about the changing course of the Amazon River over geologic time. I did not go to this conference, but the main thing I wonder is what was happening between the end of the Cretaceous (65 million years ago) and the beginning of the Miocene (~20 million years ago)??
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Clastic Detritus 
rubish