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首页> 外文期刊>Environment and Ecology Research >The October 13, 2010 Landslides on the Azenge Mountain in Imande Ukusu, Nkomon Disrict, Benue State, Nigeria
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The October 13, 2010 Landslides on the Azenge Mountain in Imande Ukusu, Nkomon Disrict, Benue State, Nigeria

机译：2010年10月13日，尼日利亚贝努尔州Nkomon Disrict的Imande Kusu的Azenge山滑坡

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A swarm of 14 landslides occurred spontaneously within the Azenge Mountain on November 13th, 2010 between the hours of 1 and 6 am after torrential rains. The landslides were studied using interviews, field observations and laboratory study of the soil samples collected from the major landslide site. Results of the study show that the event that was reported by many local media in Nigeria as volcanic eruption was a spontaneous massive slope movement along the mountainous terrain of Imande Ukusu, Mon village. About 1,123,918 m3 of rock and debris were moved along the sliding surface for more than 1.5 km to the toe of the mountain within a very few minutes. The size of the materials moved decreases from the top to the toe of the slope which range from 50o to 5o respectively. These materials range in size from block of rocks of various sizes, soil to mud. The largest boulders moved measured 71.2 m and 88.5 m respectively. The rock types in the area include gneisses, granites, basaltic rocks and dolerite dykes which have a general strike of 240o NW with a dip of 038o NE and are highly fractured. The fractures and dip are in the direction of the slope. Laboratory result of the soil samples reflect two types of grain sizes. Those with very high degree of susceptibility to sliding above the sliding surface which plot in the failure zone and those less susceptible from the sliding surface and plot outside the failure zone. Torrential rainfall towards the end of the year was the main triggering mechanism of the landslides. Other causes are attributed to geological, morphological and human factors. The landslides led to the death of 1 person, destruction of vegetation, soil structure and texture, farmlands and remodeling of the geomorphology of the area. It is recommended that human activities along the toe of the hills be reduced and settlements should be sited far away from the hills to avoid further loss of lives in future.
机译：2010年11月13日，在暴雨过后的凌晨1点至6点之间，在Azenge山内自发发生了14次滑坡。使用采访，实地观察和对从主要滑坡场采集的土壤样品进行实验室研究的方法对滑坡进行了研究。研究结果表明，尼日利亚许多当地媒体报道的火山喷发事件是孟村伊曼德·乌库苏（Imande Ukusu）山区自发的大规模斜坡运动。在几分钟内，大约1,123,918 m 3 的岩石和碎屑沿着滑动面移动了1.5公里以上，到达了山的脚趾。所移动物料的大小从坡度的顶部到脚趾减小，分别从50 o 到5 o 。这些材料的大小范围从各种大小的岩石块到土壤到泥浆。最大的巨石运动分别为71.2 m和88.5 m。该地区的岩石类型包括片麻岩，花岗岩，玄武岩和白云岩堤坝，其总走向为240 o NW，倾角为038 o NE，并且高度破裂。裂缝和倾角是在倾斜方向上。土壤样品的实验室结果反映了两种类型的颗粒大小。那些极易在滑动表面上方滑动的零件会出现在失效区域，而那些不太易受滑动表面影响而在失效区域外面会发生滑动的零件。到年底的暴雨是滑坡的主要触发机制。其他原因可归因于地质，形态和人为因素。滑坡导致1人死亡，植被破坏，土壤结构和质地，农田和对该地区地貌的改造。建议减少沿山脚趾的人类活动，并将定居点放置在远离山脚的地方，以免将来进一步造成生命损失。

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