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248 BILLION YEARS OLD NEWS IN ENGLISH

  • oxygen 2.48 billion years old

    Oxygen '2.48 Billion Years Old'

    World | November 26, 2011 14:50 IST

    Washington, November 26: An international team says that banded ironstone core samples from the Pilbara rocks in Australia have aided in dating the first appearance of atmospheric oxygen at 2.48 billion years ago.Prof Mark Barley,

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