Earth:Changcheng System
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Short description: Geological formation
The Changcheng System is a Mesoproterozoic geological formation which has yielded primitive fossil eukaryotes, such as Tappania. It formed around 1.9-1.8 billion years ago as a result of a continental collision in the North China Craton.[1]
References
- ↑ Wan, Yusheng; Zhang, Qiaoda; Song, Tianrui (1 November 2003). "SHRIMP ages of detrital zircons from the Changcheng System in the Ming Tombs area, Beijing: Constraints on the protolith nature and maximum depositional age of the Mesoproterozoic cover of the North China Craton". Chinese Science Bulletin 48 (22): 2500–2506. doi:10.1360/03wd0005. https://link.springer.com/article/10.1360/03wd0005.
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