archean eon
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ˈɑ:
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chean
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Archean Aeon

Definitie en betekenis van "Archean Eon"in het Engels

01

(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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grammaticale informatie
Voorbeelden
Earth's crust became more stable during the Archean Eon. 
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