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jan 1, 1000000000 BC - 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

Description:

当时地球处于刚刚生成的阶段

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地球地质年代表

By徐康
8 Feb 2020
1
0
1126

Date:

jan 1, 1000000000 BC
Now
~ 5883516 years ago
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