| 西安翠华山古崩塌性滑坡体的沉积特征及其形成过程 |
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| 引用本文： | 南凌,崔之久.西安翠华山古崩塌性滑坡体的沉积特征及其形成过程[J].山地学报,2000,18(6):502-507. |
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| 作者姓名： | 南凌 崔之久 |
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| 作者单位： | 北京大学城市与环境学系，北京 100871 |
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| 摘 要： | 西安翠华山风景地貌由古崩生滑坡体高速运行堆积而成，堆积体存在一些反映其运动和动力状况的沉积特征，将崩塌性滑坡体的平面堆积体划分出５个平面相带；中央相带、边缘相带、抛掷相带、气浪溅泥相带和特殊的残留相带，各带有不同的沉积特征，反映出调整运动中的崩塌式滑坡体动力过程和沉积过程在平面上分布的差异，通过研究该古积物的粒径变化、砾石组构和沉积结构、构造的差异，认为该崩塌式滑坡体在运动和沉积过程，存在前后部位
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| 关 键 词： | 古崩塌性滑坡 平面相带 沉积特征 形成过程 |
| 文章编号： | 1008-2786(2000)06-0502-06 |
| 修稿时间： | 2000年3月1日 |
THE DEPOSIT CHARACTERISTICS OF THE PALEO-AVALANCHINE LANDSLIDE IN XI'AN CUIHUA MOUNTAIN AND ANALYSIS OF ITS GENERATIVE PROCESS |
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| Nan Ling,CUI Zhi-jiu.THE DEPOSIT CHARACTERISTICS OF THE PALEO-AVALANCHINE LANDSLIDE IN XI'AN CUIHUA MOUNTAIN AND ANALYSIS OF ITS GENERATIVE PROCESS[J].Journal of Mountain Research,2000,18(6):502-507. |
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| Authors: | Nan Ling CUI Zhi-jiu |
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| Abstract: | The tourist landscape in Xi'an Cuihua Mountain, is generated from a large paleo-avalanchine landslide, with the special deposit structures showing indirectly information of high speed block movement. In the article, the author divided five plane phases in the rock avalanchine landslide deposit: the center phase, the boundary phase, the projectile phase, the airblast and mud splatter phase, and some remnant phase. Every phase has the special deposit characteristics that showing the differences in plane distributions, when the avalanchine landslide was moving and depositing. Based on studying on the changes in grain size, gravel fabrication, and deposit structures, we discovered that there are some dynamical differences between in the front of deposit and in rear of deposit of the avalanchine landslide: from the rear to the front, the moving direction and mode had changed. The grain size was getting decreased; intermixing degree and dynamical stability increased. In the rear of deposit, the blocks integrally slid and were little detached. But in the front, they collided and detached in great lot. We deduced that the power came from the rear of the landslide Study on the geological and geomorphologic environment, on characteristics of the deposit that may reflect the trail of movement and dynamics, we discussed the generative process of this landslide. |
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| Keywords: | paleo-avalanchine landslide plane phases deposit characteristics generative process |
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