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Bay History. The Chesapeake Bay has its beginnings in the ancient Susquehanna River valley. More than 18,000 years ago, geologists believe, the Susquehanna flowed directly into the Atlantic Ocean, with the valley surrounding it meandering through the continental shelves. As glaciers began to shrink, sea level began to rise, and the waters of ...
Nov 19, 2013 · Still, there is a lot of it: about 3 trillion gallons — or one-sixth the volume of the modern Chesapeake Bay — he estimates. When the water was trapped 100 million or more years ago, "the ...
Nov 13, 2013 · Chemical, isotopic and physical evidence indicate that some of the groundwater in the Chesapeake Bay crater is remnant Early Cretaceous North Atlantic sea water, probably 100–145 million years ...
- Ward E. Sanford, Michael W. Doughten, Tyler B. Coplen, Andrew G. Hunt, Thomas D. Bullen
- 2013
Jan 24, 2017 · USGS scientists have determined that high-salinity groundwater found more than 1,000 meters (0.6 mi.) deep under the Chesapeake Bay is actually remnant water from the Early Cretaceous North Atlantic Sea and is probably 100-145 million years old. This is the oldest sizeable body of seawater to be identified worldwide.
May 24, 2016 · Really big oysters were more common during the Pleistocene era, which ended 13,000 to 11,700 years ago, not long after most scientists think that humans arrived around the bay.
Nov 14, 2013 · The new study began as an offshoot to a joint project by the USGS and the International Continental Scientific Drilling Program to bore deep below Chesapeake Bay. Thirty-five million years ago, a nearly 2-mile-wide (3 kilometers) asteroid or comet slammed into the North Atlantic Ocean, leaving a giant pockmark beneath the shallow waters of the ...
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Where did the Impactor Strike the Earth? As shown below in red, the impact site was east of Richmond, Virginia on the edge of the continental shelf, in what we now name the Chesapeake Bay. The YouTube video provides details about the 52-mile diameter of the impact crater and the higher water levels during the late Eocene era 36 million years ago.
