Ancient seawater discovered

While drilling at Cape Charles, Va., to study the Chesapeake Bay Impact Crater site — the largest known impact crater in North America - USGS scientists discovered ancient seawater under 400 to 1,200 feet of sand, silt and clay. They believe the seawater is more than 100 million years old. Read related article.

A map of the Chesapeake Bay Crater.
Source: Middle Peninsula Planning District. The Washington Post. Published on November 16, 2013, 5:09 p.m.
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