DID YOU KNOW THAT THE AMAZON RIVER USED TO DISCHARGE ITS WATERS INTO THE CARIBBEAN?
More than 11 million years ago, in the Middle Miocene, the one known nowadays as the highest discharge river in the world, was once a tributary river that discharged its waters in the Orinoco. This in turn, flowed to Lake Maracaibo in the Caribbean.
The uprising of the Andes, mainly the Eastern Cordillera in Colombia, generated thrust faults that put oceanic rocks at heights greater than 3500 masl.
This uprising finally changed the hydrological regimes of northern South America, making the Orinoco and the Amazon independent rivers with outlets to the east of the continent into the Atlantic Ocean.