Based on the ages of the ocean floor in the Atlantic, how long ago do you think Africa and South
America split apart?

The South Atlantic Ocean opened about 140 million years ago as Africa separated from South America. About the same time, India separated from Antarctica and Australia, forming the central Indian Ocean

It was about 140 million years ago that the Africa and South America split apart. When the Gondwana began to split, Africa and South america also began to split with it! That is how the South Atlantic Ocean was made between Africa and South America.

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