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2.5 Billion-Year-Old “Time Capsule” Rocks Rewrite History: New Study Challenges Mantle Oxidation Theory

Smithsonian scientists conduct new research on ancient 'time capsule' rocks, dating back at least 2.5 billion years. Researchers at the Smithsonian’s National Museum of Natural History have conducted a new analysis of rocks believed to be at least 2.5 billion years old, shedding light on the chemic

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