Scientists find an
ancient pocket of seawater in the Chesapeake Bay that's 100-150 million years old
Results from more testing showed the water was twice as salty as
today’s ocean water. When they analyzed its chemistry, they found high
levels of chloride and bromide, the fingerprint of seawater from
another time, [USGS hydrologist Ward] Sanford said.
More tests and digging through
research established that the chemistry was consistent with the “vast
halite deposits created during the Jurassic and Cretaceous periods in
the Gulf of Mexico and South Atlantic Basins,” the research paper said.