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The Oldest Rocks from the Hadean Eon

Robert Simmon, NASA - http://earthobservatory.nasa.gov/Study/Zircon/
Robert Simmon, NASA - http://earthobservatory.nasa.gov/Study/Zircon/
Robert Simmon, NASA - http://earthobservatory.nasa.gov/Study/Zircon/
Robert Simmon, NASA

Jack Hills in Western Australia contain Hadean zircons that formed around 4.39 billion years ago.

via Jack Hills – Wikipedia.

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