Scientific Literacy with Ms. Ghazarian 2012-2013
Friday, May 17, 2013
Water Trapped For 1.5 Billion Years Could Hold Ancient Life
This map, from the United States Geological Survey, shows the age of
bedrock in different regions of North America. Scientists found ancient
water in bedrock north of Lake Superior. This region, colored red, was
formed more than 2.5 billion years ago.
Credit: United States Geological Survey
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