A Prelim inary Study on the Deposition of Turbidity Currents in Qionghai Lake, Sichuan, China

YU Bin; ZHANG Shu-cheng; WANG Shi-ge

Goose Foot River is located in the south of Qionghai Lake, Sichuan, China. Huge sediment was carried into Qionghai Lake by debris flows and floods of Goose Foot River in recent 15 years. The sediment deposited in the lake and formed an underwater levee in the lake. The underwater levee is 2km in length, 200m ( along south coast)to 600m ( along north coast) in width and the average 2m in height. A channelwas found in the lake in 2003 and it was connected with the fan of river. Itwill be helpful for the research of deposition in lake and deep sea. Research on turbidity currents, especially high density turbidity currentswill have specialmeaning not only for the geomorphology of lake and deep sea, but also for the seeking the hydrocarbon in lake and deep sea.

Institute of Mountain Disaster and Environment, Chinese Academy of Sciences, Chengdu 610041

Received Date: 2005-01-11

Rev Recd Date: 2005-04-13

Publish Date: 2005-12-10

Key words:

Abstract: Goose Foot River is located in the south of Qionghai Lake, Sichuan, China. Huge sediment was carried into Qionghai Lake by debris flows and floods of Goose Foot River in recent 15 years. The sediment deposited in the lake and formed an underwater levee in the lake. The underwater levee is 2km in length, 200m ( along south coast)to 600m ( along north coast) in width and the average 2m in height. A channelwas found in the lake in 2003 and it was connected with the fan of river. Itwill be helpful for the research of deposition in lake and deep sea. Research on turbidity currents, especially high density turbidity currentswill have specialmeaning not only for the geomorphology of lake and deep sea, but also for the seeking the hydrocarbon in lake and deep sea.

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A Prelim inary Study on the Deposition of Turbidity Currents in Qionghai Lake, Sichuan, China

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