元古宙
划分前寒武纪的二个宙中稍晚的一个宙，距今25亿年至5.7亿年，共经过19亿年时间。元古宙又可划分为3个代。
Classification(s)
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Geographic semantic resource library Earth System(in Chinese) Geology
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| English |
|---|
| Name | Proterozoic |
| Chinese |
|---|
| Name | 元古宙 |
| Description | 划分前寒武纪的二个宙中稍晚的一个宙，距今25亿年至5.7亿年，共经过19亿年时间。元古宙又可划分为3个代。 |
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NNU_Group (2011). 元古宙, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/cc89776c-343f-4b6a-821b-fb63ccc57e15
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