Abstract
According to limited research in the past, Chuni landslide is a giant rock landslide located on the right bank of the Daduhe River, Luding County, Sichuan Province. The detailed geological survey reveals that Chuni landslide developed in the Kangding complex strata. The combination of steep rock mass structural planes which affected by the Luding fault and Jinping fault was the controlling factor which leads to the formation of landslide, and the strong earthquake in the history was the triggering factor. By the ESR time dating of samples from the lake sand in the dammed reservoir of the landslide, Chuni landslide was formed in 20.2=± 2 ka B.P. Moreover, due to the “gully piracy” of North gully in 7.1 ± 2 ka B.P, the landscape of Chuni landslide has changed a lot. The ancient geological environment in the landslide area can be reconstructed effectively by our study on its complicated evolution process. And since the landslide position is in the Yingliangbao hydropower station reservoir, which is under the construction, it is worth making an analysis on the causes of landslide as well as its stability.
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Acknowledgments
The research has been supported by National Natural Science Foundation of China (NSFC), (Grant No.2008CB425801, 41072231), and by the China Geological Survey Bureau (Grant No.1212010914010). We are particularly thankful to Hailiang Li, Jianlin Zhao, Yi Zhou for field researches.
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Wu, J., Wang, Y., Dong, S. (2013). Research on Chuni Landslide Geological Evolution Process. In: Margottini, C., Canuti, P., Sassa, K. (eds) Landslide Science and Practice. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31337-0_8
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DOI: https://doi.org/10.1007/978-3-642-31337-0_8
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