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Salty water flowing through rocks more than 1 kilometer beneath eastern Virginia came from the Atlantic Ocean when it was much smaller and saltier than today, a new study suggests. At that time, the nascent North Atlantic was much narrower than it is today and was a largely enclosed basin surrounded by land-which, along with the warmer climate of the time, helps explain why the long-trapped water is almost twice as salty as today's seawater. [Source: Science/AAAS News]
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