The seawater — believed to be 100 to 150 million years old — was isolated, trapped a half-mile underground, and preserved with the help of an asteroid that smashed into the area around 35 million years ago, creating a huge crater.
The watery fossil holds around 3 trillion gallons, and is “the oldest large body of ancient seawater in the world,” according to government hydrologists who made the amazing find while mapping the ancient crater under Virginia’s Cape Charles.
Flooding has become so common in this city, where water is the lifeblood, that residents talk about it in the supermarket. Home to the world’s largest naval base, Norfolk sits on flat land — much of it filled-in marsh that’s now at sea level and sinking. Add to that the sea-level rise from global warming, and the city faces what it deems a $1 billion-plus problem.