The basement was formed about 60 million years ago at the mid-ocean ridge crest, and the uplift of the ridge and opening of Kings Trough occurred about 27 million years ago.

As it cools down, the lava creates a long line of mountains under the ocean called the Mid-ocean Ridge - the longest mountain range on Earth. The longest mountain range on land is the Andes in ...

These zones include: the Pacific Ring of Fire around the Pacific Ocean the Mid-Atlantic Ridge, a mid-ocean ridge that extends along the floor of the Atlantic Ocean southern Europe There are ...