• 责任者：Chen Jian (School of Engineering and Technology ; China University of Geosciences ; Beijing 100083 ; China) ; Cui Zhijiu
• 刊名：Journal of Mountain Science
• 出版年：2011
• 卷期：29(3)
• 关键词：泥石流 ; debris flows ; 堆积体 ; accumulation body ; 金沙江 ; Jinsha River
• 页码：p.312-319
• 图表：5 illus., 4 tables, 26 refs.
• 分类号：1702
• 出版序号：1307
• issnNo：ISSN1008-2786
• isbnNo：CN51-1516/P

///The Quaternary debris-flow accumulations can provide rich information for geomorphic evolution,  tectonic movement and climate change. The Waka debris flows is one of the major debris flows in the river segment and has successive series in the exposed sections. Detailed granularity,  pollen,  geochemical and textural studies reveal the formation processes of Waka debris flows. The age estimates of optically stimulated luminescence (OSL) using SAR protocol show that the occurrence of major debris flows started at around 12.6 ka B. P.  and weakened until 4.5 ka B. P.  in the upper Jinsha River valley. The age estimates of optically stimulated luminescence show that the occurrence of major debris flows corresponded to the obvious strengthened phase of the summer monsoons in the region. The formation characteristics and ages of the debris-flow deposits in the upper Jinsha River indicates that the occurrence of a mass of debris flows were a response to the intensified southwest monsoon in the southeast margin of the Tibetan Plateau since Early Holocene.