The landslide that dammed Mengda Lake was not triggered by the 1927 Gulang, China, M8 earthquake

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• 作者：Chong Xu
• 关键词：Mengda Lake ; Mengda landslide ; Gulang earthquake
• 刊名：Journal of Paleolimnology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：57
• 期：2
• 页码：157-161
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Paleontology; Sedimentology; Climate Change; Physical Geography; Freshwater & Marine Ecology; Geology;
• 出版者：Springer Netherlands
• ISSN：1573-0417
• 卷排序：57

文摘

The small catchment of Mengda Lake (700 m × 250 m, 20 m deep) lies in a mountainous area at the northeast margin of the Tibetan Plateau. Using sedimentary evidence and absolute age constraints, Wang et al. (J Paleolimnol 51:303–312, 2014) suggested that this lake formed in the early 20th century, perhaps as a consequence of a landslide associated with the 1927 Gulang M8 earthquake. I present evidence to question this hypothesis. Historical records show the lake has been in existence since at least AD 842, i.e. long before the 20th century, and thus its origin is unrelated to the 1927 Gulang earthquake. Documented damage from that shock supports my claim.