| 门头沟山区泥石流发育特征与岩石类型的相关性分析 |
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| 引用本文： | 王珊珊,罗守敬.门头沟山区泥石流发育特征与岩石类型的相关性分析[J].城市地质,2015(Z1):156-160. |
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| 作者姓名： | 王珊珊 罗守敬 |
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| 作者单位： | 北京市地质研究所,北京,100120 |
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| 摘 要： | 不同类型岩石的成分和结构存在较大差异,使岩石自身及其风化物具有不同的物理力学性质,从而导致泥石流在不同类型岩石中的发育情况不同。门头沟山区目前存在12条泥石流沟,主要分布在砂岩地层和第四系堆积物地区。通过对泥石流沟的发育数量.松散物厚度和储量,沟道相对高差和主沟纵坡等主要特征要素与岩石类型之间的关系.进行统计分析.认为岩石类型从物源量.沟道形态和人类工程活动3个方面.影响着泥石流沟的发育。
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| 关 键 词： | 泥石流 地层岩性 碎屑岩 沟道形态 |
Discussion on the relationship Between Debris Flow and Formation Lithology |
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| WANG Shanshan,LUO Shoujing.Discussion on the relationship Between Debris Flow and Formation Lithology[J].City Geology,2015(Z1):156-160. |
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| Authors: | WANG Shanshan LUO Shoujing |
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| Abstract: | Different rocks have different physical and mechanical properties due to the difference of composition and texture. So debris lfows develop differently in different rocks. There are 42 debris lfow gullies in Mentougou mountain areas, mainly distributed in sand formation and Quaternary deposits. The relationship between rock type and the debris lfow elements was analyzed, and the debris lfow elements included the quantity, the thickness and amount of loose material, the relative height and the slope of gully. The results show that formation lithology inlfuences the development of debris lfow by source materials, gully form and human engineering activities. |
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| Keywords: | debris lfow formation lithology clactic rock gully form |
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