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News Link • Geology

Great Oxygenation Event Linked to Crustal Cooling

• arclein
reveal that a steep decline in the intensity of melting within the planet's mantle - the hot, heat-transferring rock layer between the crust and molten outer core - brought about ideal conditions for the period known as the Great Oxygenation Event (GOE) that occurred roughly 2.5 billion years ago.

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