摘要
岩溶区储水结构是寻找地下水最为有利的靶区。在可溶岩与非可溶边界呈串珠状发育的岩溶泉、漏斗等,常指示地下岩溶强烈发育,接触界面的可溶岩为找水的有利部位。在背斜轴部,由于来自侧翼的挤压作用,灰岩、白云岩等硬脆性岩石易形成张性裂隙密集带,成为地下水的有利赋存部位。断裂、构造裂隙密集带使地下水互为沟通,成为良好的储水载体。在这些储水结构部位,合理选择组合地球物理方法和分析其地球物理特征,可快速获得储水结构的延伸方向、发育宽度及下延深度等参数,为定位、开采地下水提供基础性资料。
The water-bearing structures are most favorable targets for finding underground water in karst regions. There are some kast springs, sinkboles of pearl-string shape on the boundary between soluble and non-soluble rocks which often indicate the existence of underground kastifieaton developed intensively. The soluble rock zones along the boundary, are good positions of detecting karst underground water. The hard and fragile rocks such as limestone and dolomite form tensile fractured zones easily because of tectonic compression from flanks in the center of the anticline which is a good place of underground water storage. Faults and fractured zones not only make underground water link each other easily but also become the better water hearing carriers. In these areas, the parameters of extension direction, width and down-stretching depth of the water bearing structures can be gained rapidly by geophysical surveys using combined methods and analyzing their geophysical characteristics, which provide basic data for drilling location and underground water exploitation.
出处
《地质与勘探》
CAS
CSCD
北大核心
2011年第4期663-672,共10页
Geology and Exploration
基金
西南严重缺水地区地下水勘查和贵州重点岩溶流域水文地质及环境地质调查(编号1212010634803)项目资助的成果
关键词
岩溶
地下水
断裂
储水结构
地球物理勘察
karst, underground water, fracture zone, water-bearing structures, geophysical survey
