Archean Eon
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(geology) the eon of geological time extending from about 3.8 billion to 2.5 billion years ago, when Earth's crust formed and the earliest known life developed
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Earth's crust became more stable during the Archean Eon.
(geology) the eon of geological time extending from about 3.8 billion to 2.5 billion years ago, when Earth's crust formed and the earliest known life developed
