The deep oceans are far from flat. They feature ridges, trenches, seamounts, and valleys, creating a diverse and dramatic ...

It is now called the Mid-Ocean Ridge. In 1953, American physicists Maurice ... In some places the canyon, called the Great Global Rift, came very close to land. The rift appeared to be breaks ...

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 ...