应用物探方法在宁夏香山南麓严重缺水区寻找地下水  

Applying of Geophysical Water Exploration in the Extremely Arid Area,the South of Xiangshan Mountain in Ningxia

作　　者：徐映雪[1] 尹秉喜 史晓杰 

机构地区：[1]中国地质大学水资源与环境学院,北京100083 [2]宁夏地质调查院,宁夏银川750021

出　　处：《宁夏大学学报（自然科学版）》2007年第2期166-169,共4页Journal of Ningxia University(Natural Science Edition)

基　　金：宁夏发展和改革委员会资助项目;宁夏扶贫扬黄二期工程兴仁灌区人畜生活饮水供水水文地质勘察项目

摘　　要：通过对宁夏中部干旱带香山南麓地质构造特征的研究,初步确定了香山南麓的石峡沟岩溶分布区及麻黄沟侏罗系砂岩分布区具有地下水赋存条件.对这2个地区分别选用了国内先进的EH-4电导率成像技术和电阻率测深技术进行物探找水,在被视为找水“禁区”的侏罗系苦咸水地层和石炭系地层中找到了丰富的地下水,为水文地质勘查找水工作提供了有力的科学依据,并获得了明显的社会效益和经济效益.结果表明,应依据不同的水文地质条件,选择相应的物探勘查方法;EH-4电导率成像技术是寻找该地区岩溶地下水最为有效的方法,电阻率则是苦咸水区寻找孔隙裂隙层间淡水的最重要的物性参数.In order to solve drinking water sources, a great deal of work on water detection by physical prospecting has been done in the south of Xiangshan, which is located in the arid regions of the middle Ningxia. Based on research of the geological structural characteristics, karst region in Shixiagou and jurassio sand-stone in Mahuanggou are tentatively determined to have condition for the storage of groundwater. The resistivity sounding method and EH-4 electro-conductibility imaging system are applied. Rich groundwater resources are found in the limestone of Cambrian and sandstone of Jurassic which were traditionally seemed to be ＂no-water＂. This provides scientific evidence for hydrogeological investigation of groundwater exploration, and achieves distinct social and economic benefit. The result shows that appropriate geophysical prospecting method is should be chosen according to different hydrogeolocial conditions, EH-4 electro-conductibility imaging system is one of the most effective methods for groundwater resources exploration in karst area, and resistivity is the most important physical parameter when the geophysical prospecting method is used for seeking pore or fissure fresh water in bitter and salty water area.

关 键 词：严重缺水区 地下水勘察 物探方法 

分 类 号：P319[天文地球—固体地球物理学]