| Early Holocene High Magnitude Debris Flow Events and Environmental Change as Illustrated by the Moxi Platform, Hengduan Mountains, SW China |
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| 作者姓名： | ZHANG Junyan CHENG Genwei LI Yongfei |
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| 作者单位： | ZHANG Junyan Institute of Mountain Hazards and Environment，Chinese Academy of Sciences，Chengdu 610041，China Graduate University of Chinese Academy of Sciences，Beijing 100049，China Department of Biology，Acadia University，Wolfville，Nova Scotia，Canada B4P 2R6CHENG Genwei Institute of Mountain Hazards and Environment，Chinese Academy of Sciences，Chengdu 610041，China LI Yongfei Department of Geography，Shangrao Normal College，Shangrao 334001，Jiangxi，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | Introduction Landscape evolution in glaciated high mountains environment in southwestern China is undergoing the coupled processes of monsoon- induced denudation and active tectonic. The debris fan development, in particular sediment transfer, is most int…
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| 关 键 词： | 全新世 环境变化 地质构造 构造运动 |
| 文章编号： | 1672-6316（2006）02-0125-06 |
| 收稿时间： | 2006-03-14 |
| 修稿时间： | 2006-04-04 |
Early holocene high magnitude debris flow events and environmental change as illustrated by the Moxi Platform, Hengduan Mountains, SW China |
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| ZHANG Junyan CHENG Genwei LI Yongfei.Early Holocene High Magnitude Debris Flow Events and Environmental Change as Illustrated by the Moxi Platform, Hengduan Mountains, SW China[J].Journal of Mountain Science,2006,3(2):125-130. |
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| Authors: | Junyan Zhang Genwei Cheng Yongfei Li |
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| Institution: | (1) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China;(2) Graduate University of Chinese Academy of Sciences, Beijing, 100049, China;(3) Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada, B4P 2R6;(4) Department of Geography, Shangrao Normal College, Shangrao, 334001, Jiangxi, China |
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| Abstract: | Thick debris flow deposits in the Hengduan Mountains of southwestern China record landscape instability at the close of the last glaciation and in the early Holocene. The deposits, ranging in thickness from 100 to 200 m, are common and in high magnitude in the valleys of this region. They are products of large debris flows induced by glacier and enabled by the presence of large amount of glacial debris on the landscape. The carbon 14 dating from Moxi Platform indicates that a period of catastrophic debris flows occurred at c. 7 kyr B.P., and was concurrent with other glacial-fluvial fans and terraces which tied to regional climatic oscillations elsewhere in the Himalaya. The comparable events suggest a strong climatic control on earth surface processes for the dynamics, magnitude, and frequency in this region. |
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| Keywords: | Debris flows environment change Holocene Hengduan Mountains China |
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