Friday, November 22, 2013

Wayback water

This was not something we were looking for or even expected,” comments hydrologist Ward Sanford of the U.S. Geological Service. His team was drilling 1/2 mile below the ground near the Chesapeake Bay (MAP FROM 1812 ABOVE) at Cape Charles, Virginia, to study how the Earth's crust absorbed the impact of an asteroid or huge chunk of ice which struck about 35 million years ago. The enormous crater – now covered with up to 1,200' (365 m) of sand, silt, and clay – was discovered in 1999 and now scientists have made a new discovery. They found a trapped pocket of water with twice the salinity of modern seawater and have determined it to have remained untouched since the Early Cretaceous period 100 million years ago. While geologists from the University of Toronto can claim discovery of the oldest fresh water (so to speak) in the world at 2.6 billion years old, The USGS has found the oldest large body of ancient seawater in the world.

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