前寒武纪
前寒武纪又称前古生代。寒武纪之前的地质时期，是地球历史最早的地质阶段。即自地球形成至大约5.7亿年以前的地质时代，地球年龄大约46亿年，从40亿年前开始进入地质阶段，故前寒武纪时距今约为34亿年，占地质历史的85%。
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contributed at 2011-12-23
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Earth System(in Chinese) Geology
Detailed Description
| English |
|---|
| Name | Pre-Cambrian |
| Chinese |
|---|
| Name | 前寒武纪 |
| Description | 前寒武纪又称前古生代。寒武纪之前的地质时期，是地球历史最早的地质阶段。即自地球形成至大约5.7亿年以前的地质时代，地球年龄大约46亿年，从40亿年前开始进入地质阶段，故前寒武纪时距今约为34亿年，占地质历史的85%。 |
How to Cite
NNU_Group (2011). 前寒武纪, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/6a768323-bdda-4daa-b6d4-4da0e11696bc
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