自然杂志 ›› 2010, Vol. 32 ›› Issue (3): 125-129.

• 特约专稿 •    下一篇

地球的陆壳是怎样形成的？——神秘而有趣的前寒武纪地质学

翟明国   

  1. 中国科学院院士，中国科学院地质与地球物理研究所，北京100029
  • 收稿日期:2010-03-04 修回日期:2010-05-04 出版日期:2010-06-25 发布日期:2010-06-25

How to Originate and Evolve for Continental Crust of the Earth—Precambrian Geology: a Mysterious and Interesting Science

 Zhai Ming-Guo   

  1. CAS Member,Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029,China
  • Received:2010-03-04 Revised:2010-05-04 Online:2010-06-25 Published:2010-06-25

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摘要： 地球的年龄大约有46亿年。以5.45亿年为界，之前的称为前寒武纪，它有大约40亿年，是地球历史上漫长的地质时代。之后的称为显生宙，寒武纪就是显生宙的第一个纪元。地球陆壳的80%~90%以上是在前寒武纪形成的，记录了复杂和惊心动魄的地质构造事件，赋存着丰富的矿产资源。前寒武纪地质，就是研究地球在前寒武纪时期的地质演化，特别是大陆的形成和增生以及演化的学科。

关键词: 基因靶向, 功能基因, 动物模型, 胚胎干细胞, 地球, 陆壳, 形成与演化, 前寒武纪地质学

Abstract: The Earth is ca. 4 600 Ma old up to now. 545 Ma is a key boundary mark. The epoch greater than 545 Ma is called Precambrian Era, time range of which is about 4 000 Ma long. The epoch of 545 Ma is termed Phanerozoic Era. Cambrian is the first geological period of Phanerozoic Era. The 80%~90 % volume of continental crust was formed in Precambrian. Oldage continent crust records complicated and supernatural geotectonic history, and contains abundant mineral resources with enormous reserves. Precambrian geology is a branch of Earth sciences that study geological process and ending in precambrian, including early continent forming and evolving.

Key words: Gene targeting Functional gene Animal model Embryonic Stem Cell, Earth, continental crust, originate and evolve, Precambrian geology 

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