News Oceans

Extremely salty water is at least 100 million years old

Supersaline sediments off East Coast shed light on Atlantic Ocean’s early history

SALTY SEA  The Chesapeake Bay holds a pocket of high-salinity groundwater that has been undisturbed since the Early Cretaceous, at least 100 million years ago.

Landsat/NASA/Wikimedia Commons

By Jessica Morrison

- More than 2 years ago

Water, water, everywhere and some of it’s been undisturbed for more than 100 million years.