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1 gen 1000000000 anni a. C. - 太古宙 40亿年前~25亿年前分为始太古代、古太古代、中太古代、新太古代在距今36亿年前的古太古代出现了蓝绿藻在距今25亿年的新太古代出现了第一次冰河期

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当时地球处于刚刚生成的阶段

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地球地质年代表

8 feb 2020

1

0

1260

Data:

1 gen 1000000000 anni a. C.

Adesso

~ 5883516 years ago

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