The Real Reason For Why The Ocean Is Salty Is Totally Unexpected

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It’s just something we take for granted – the Earth’s oceans are salty. But did you know that it wasn’t until 1979 that we knew why?

For years, scientists thought it was the rivers carrying deposits and chemicals to the oceans but it turns out it was something scientists are now calling hydrothermal vents, or “black smokers.” Black smokers are columns of micro-crystals along the mid-ocean ridge formed from deposits of iron sulfide deep within the Earth’s core.

It turns out that the entire volume of the ocean cycles into the deep layers of the Earth and back out again every 6-8 million years. During that process, it picks up and swaps out all sorts of chemical compounds. How cool is that?!?

Watch the video below for a more in-depth explanation! Help us protect Earth’s oceans — Do your part to help our oceans keep up their cycle of renewal by helping keep them clean!

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Paul has been an actor/director in the Twin Cities area for over 30 years and is very active in the MN theater community. His kid is really cool! You can find his blog at "Parental Writes" blog.
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