Question

Why is the floor of the atlantic ocean older at the edges?

Answer 1

As the mantle rises towards the surface below the ridge the pressure is lowered (decompression) and the hot rock starts to partially melt. ... This process is known as “sea floor spreading” and results in a symmetrical alignment of the rocks of the ocean floor which get older with distance from the ridge crest.

Answer 2

Step-by-step explanation:

The Ridge extends into the South Atlantic Ocean between the South American and African Plates. ... This process is known as “sea floor spreading” and results in a symmetrical alignment of the rocks of the ocean floor which get older with distance from the ridge crest.