Why Is The Ocean Salty?
6. Underwater Vents
Underwater vents are a relatively new discovery. This is because they are so deep that the water pressure there is so high that it has, until relatively recently, been impossible to go there. What we did find was fascinating in many ways. One thing that was discovered was life where none was expected to be.
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The vents were rich in nutrients that fed bacteria, which in turn fed other species, creating a natural habitat. The vents were also spewing out minerals into the ocean and while many of these are removed, the salt remains, helping to make the oceans saltier.
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