New evidence for the incision history of the Liuchong River, Southwest China, from cosmogenic Al-26/Be-10 burial ages in cave sediments

	New evidence for the incision history of the Liuchong River, Southwest China, from cosmogenic Al-26/Be-10 burial ages in cave sediments
	Liu Yu; Wang Shijie; Xu Sheng; Liu Xiuming; Fabel Derek; Zhang Xinbao; Luo Weijun; Cheng Anyun
	2013
发表期刊	Journal of Asian Earth Sciences
卷号	73 期号:5 页码:274-283
摘要	Cosmogenic nuclides Be-10 and Al-26 have been analyzed for sediments from the multilevel riverside caves along the Liuchong River at the southeastern margin of the Tibetan Plateau. The Liuchong River is the northern origin of Wujiang River, which passes through the northwestern Guizhou Plateau and cuts down hundreds of meters into the bedrock, leaving behind an abundance of multilevel caves. The measured Al-26/Be-10 ratios produced the apparent burial ages in range of 0.49-2.85 Ma. Taking into account of geomorphic and geological backgrounds, the Dashi Cave located at the highest level along the Liuchong River system formed around 0.75 Ma ago, which probably suggests the initial formation age of the modern Wujiang River. The resulted incision rate of similar to 480 m/Ma in Guizhou in the last 0.75 Ma is slightly higher than those in adjacent areas. This feature implies an intensive downcutting history of the Liuchong River during the Quaternary, which might be primarily caused by the uplift of Tibetan Plateau, cut-through of the Three Gorges and soluble carbonate bedrock.
关键词	Cosmogenic Nuclides Burial Age Cave Sediments Liuchong River Guizhou China
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/5026
专题	环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	Liu Yu,Wang Shijie,Xu Sheng,et al. New evidence for the incision history of the Liuchong River, Southwest China, from cosmogenic Al-26/Be-10 burial ages in cave sediments[J]. Journal of Asian Earth Sciences,2013,73(5):274-283.
APA	Liu Yu.,Wang Shijie.,Xu Sheng.,Liu Xiuming.,Fabel Derek.,...&Cheng Anyun.(2013).New evidence for the incision history of the Liuchong River, Southwest China, from cosmogenic Al-26/Be-10 burial ages in cave sediments.Journal of Asian Earth Sciences,73(5),274-283.
MLA	Liu Yu,et al."New evidence for the incision history of the Liuchong River, Southwest China, from cosmogenic Al-26/Be-10 burial ages in cave sediments".Journal of Asian Earth Sciences 73.5(2013):274-283.

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