北方岩溶大泉地下水系统的圈划_以太原盆地东西山地区为例_韩冬梅

第31卷第6期地球科学———中国地质大学学报Vol.31　No.6 2006年11月Earth Science—Jour nal of China U niver sity of G eosciences Nov.　2006

北方岩溶大泉地下水系统的圈划:

以太原盆地东西山地区为例

韩冬梅,徐恒力,梁　杏

中国地质大学环境学院,湖北武汉430074

摘要:运用地下水系统分析理论,以山西省太原盆地东西山地区为实例,利用GIS技术对区内岩溶大泉地下水系统进行了圈划.运用岩相古地理、地质构造和水文地质分析方法,首次提取了研究区岩溶含水系统的区域隔水底板等高线、边山断裂两壁投影图及岩溶水系统图等定量或半定量水文地质信息,圈划出了东西山岩溶水系统的局部饱水带、饱水带和碳酸盐岩非饱水带.研究结果表明,西山地区兰村泉、晋祠泉属于同一个岩溶子系统;西冶泉岩溶子系统是相对独立的岩溶水系统;东山基岩山区大部分属于娘子关泉岩溶子系统,且东山岩溶水子系统与盆地地下水有密切水力联系而与兰村泉-晋祠泉岩溶子系统无直接关系.这些为模拟盆地地下水系统和评价北方岩溶地下水资源提供重要的科学依据,对前人就太原盆地边山岩溶水系统边界的确定和内部结构的划分提法有了新的认识.

关键词:岩溶水系统;圈划;G IS;太原盆地.

中图分类号:P641 文章编号:1000-2383(2006)06-0885-06 收稿日期:2006-03-12

Demarcation of Groundwater System of Big Karst Spring:A Case

Study of Eastern and Western Mountain Areas,Taiyuan Basin

H AN Dong-m ei,XU H eng-li,LIANG Xing

School o f Envir onmenta l S tud ies,China University o f Geos ciences,Wuhan430074,Ch ina

A bstract:T his pape r takes the eastern and w estern mountain areas o f T aiyuan ba sin,Shanx i Pro vince as a case study.O n the basis of g ro undw ater sy stem theory and geog r aphic infor mation sy stem(GIS)technique,some quantitativ e o r semiquan-titativ e st ruc tura l info rmatio n w as first ex tr acted from lithofacies paleog eo g raphy,geo lo gy,tectonics and hydro geo log y in the study area,including the iso lines of the base o f regional karst-w ate r aquifer s,the projective sec tion o f bo th the plane s of a fault and the mapping of kar st-w ater sy stem.T he distributio n of ka rst aquife rs,the stratum permeability,the bounda ry char acte ristics and the relatio nship between the internal and e xter nal sy stem all serv e the classificatio n of the karst-w ater sy s-tem a s local zone of satura tion,r egio na l zone o f satura tion and zo ne of passag e.The research results sho w that in the w est-er n mo untain area,the subsy stem of L ancun spring and tha t o f Jinci spring belo ng to the same r eg io nal ka rst-wa te r sy stem, and the subsy stem of Xiy e spring is an inde pendent kar st-w ater system.T he majo rity o f eastern mo untain area belongs to the subsy stem of N iangzig uan spring.The subsy stem o f the easter n mountain area closely rela ted to the g roundw ater sy stem in the T aiy uan ba sin has no direct rela tion with the subsy tem of Lancun a nd Jinci spring s.T hese scientific evidences can effec-tively be emplo yed to simulate the g roundw ater sy stem and to ev aluate the karst-w ater r eso urces in the T aiy uan basin. M eanw hile,some new view points abo ut the bo undary and the internal structure of the kar st-w ater system hav e been presen-ted with the demarcatio n me tho d in this study area.

Key words:ka rst-water sy stem;demarcatio n;geo gr aphic info rmatio n sy stem(GIS);Taiyuan basin.

基金项目:中国地质调查局地质调查项目(No.200310400009).

作者简介:韩冬梅(1978-),女,博士研究生,水文学与水资源专业.E-mail:dmeihan@