Lead-lead isotopic ages of zirconium-bearing minerals in Chang’e-6 norites reveal two distinct impact events at 4.25 and 3.87 billion years ago. (IMAGE)

Science China Press

Lead-lead isotopic ages of zirconium-bearing minerals in Chang’e-6 norites reveal two distinct impact events at 4.25 and 3.87 billion years ago.

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Lead-lead isotopic ages of zirconium-bearing minerals in Chang’e-6 norites reveal two distinct impact events at 4.25 and 3.87 billion years ago.

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