[1]WEI Dong-lan,LI Yong-hua.The Geochemistry Analysis of the Debris Flow Sediment in the Quaternary at the Eastern Fringe of Qinghai-Tibetan Plateau[J].Research of Soil and Water Conservation,2012,19(06):292-298.
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The Geochemistry Analysis of the Debris Flow Sediment in the Quaternary at the Eastern Fringe of Qinghai-Tibetan Plateau
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 06
Page number:
292-298
Column:
Public date:
2012-12-20
- Title:
- The Geochemistry Analysis of the Debris Flow Sediment in the Quaternary at the Eastern Fringe of Qinghai-Tibetan Plateau
- Keywords:
- Qinghai-Tibet Plateau; Quaternary; debris-flow sediment; geochemistry
- CLC:
- P534.63;P642.23
- DOI:
- -
- Abstract:
- The debris flow of the Wudu region in Gansu and Xiaojiang River Basin in Yunnan was taken as study Sites. By geochemical analysis, the chemical elements distribution, allocation and migration of chemical elements in debris flow in different times at different areas were investigated. Then the characteristics of climate change which influenced by the SiO2/Al2O3, the content of CaCO3, pH and organic matter in the sediment of debris flows were analyzed. The results showed that the geochemistry features of debris flow in Quaternary were distinct from other types of sediment. With the ages varying from oldness to youth, the content of SiO2, the content of CaCO3 and organic matter changed from high to low values, whereas the content of Al2O3 and the content of K2O increased. The SiO2/Al2O3 in debris flow became low from old to new ages, which showed that the tendency of climatic change became dry in this regional of Quaternary period. This result have some referential significance for the analysis of the uplift of Tiber.
- References:
-
[1] 田连全,康志成,张有富,等.泥石流及其综合治理[M].北京:科学出版社,1993.
[2] 吴积善,康志成,田连全,等.云南蒋家沟泥石流观测研究[M].北京:科学出版社,1990.
[3] 崔之久.泥石流沉积与环境[M].北京:海洋出版社,1996.
[4] Tiranti D, Bonetto S, Mandrone G. Quantitative basin characterization to refine debris flow triggering criteria and processes: an example from the Italian Western Alps[J]. Landslides,2008,5(1):45-57.
[5] Jomelli V, Brunstein D, Grancher D, et al. Is the response of hill slope debris flows to recent climate change univocal A case study in the Massif des Ecrins (French Alps)[J]. Climatic Change,2007,85(1/2):119-137.
[6] 李吉均,况明生.小江流域第四纪沉积物的ESR年代、山原红壤发育年龄与地层划分的研究[C]//"八五"攀登计划青藏高原项目.1995年学术年会论文集.兰州:兰州大学出版社,1995:64-78.
[7] 李永化,赵军,崔之久,等.青藏高原东缘和邻区晚新生代泥石流活动规律及其成因[J].地理研究,2002,21(5),561-567.
[8] 文启忠.中国黄土地球化学[M].北京:科学出版社,1989.
[9] 刘东生.黄土的物质成分和结构[M].北京:科学出版社,1996.
[10] 谢又予.以沉积学方法论"北京猿人"生活时期的古气候[J].地理科学,1982,2(4):319-325.
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Last Update:
1900-01-01