晋西黄土洞穴发育特征研究  

[KH+3mmD]Characteristic Features of Loess Caves in West of Shanxi Province

作　　者：李滨[1] 彭建兵[1] 郑书彦[1] 安光明[2] 

机构地区：[1]长安大学地质工程与测绘工程学院,西安710054 [2]中国科学院地质与地球物理研究所,北京100029

出　　处：《水土保持研究》2008年第4期98-100,共3页Research of Soil and Water Conservation

基　　金：国家西部交通建设科技攻关项目(200131881213)

摘　　要：黄土洞穴是晋西黄土高原地区发育的一种特殊微地貌景观和地质灾害。在野外调查基础上,详细总结了晋西黄土洞穴的分布情况及发育特征,研究表明:晋西黄土洞穴发育密度沿万荣-隰县-离石-兴县一线由南向北呈递增趋势,而发育深度受地层构造、岩性及其厚度、地形等多因素的综合控制;黄土构造节理的产状与黄土洞穴的产状基本一致,对洞穴形成影响显著;黄土洞穴内部构造特征多样化,反映了黄土洞穴不同时期的演化特征。Loess cave is a kind of special micro-geomorphology and geological hazard in the Loess Plateau of west of Shanxi province.Based on the field survey,this paper summarizes the distribution of loess caves and the characteristic features.Researches show the characteristic density of loess caves increase by degrees with Wanrong-Xixian-Lishi-Xingxian conuty in west of Shanxi province.The combined function of various factors controls the characteristic depth,including layer,loess quality,depth,topography and so on.The tectonic joints of loess have great influence on loess caves formation,its attitude and loess caves attitude being consistent.The interior tectonic feature that is diversification reflects the different evolution characters.

关 键 词：晋西黄土高原 黄土洞穴 分布规律 发育特征 

分 类 号：P642.2[天文地球—工程地质学]