摘要
鄂尔多斯盆地南缘干旱缺水,多年来一直制约着该区的经济发展和群众生活质量的提高。通过调查测绘、钻探验证及多学科综合研究相结合的方法,对鄂尔多斯盆地南缘岩溶地下水进行了系统研究,认为鄂尔多斯盆地南缘岩溶及岩溶水的发育均受断裂构造控制。北东向断裂具有较强的富水性,属控水断裂。北西向压扭或张扭性断裂相对北东向断裂岩溶发育较差,属导水断裂。近东西向压性断裂,富水性较差,属阻水断裂。三大构造带相互作用形成网格状和似层状地下水管道系统,对岩溶地下水的交替、运移和富集及岩溶水的径流、排泄有一定的控制作用。
In the southern margin of Ordos basin,it is dry and lack of water,which restricts the economic development and the life quality of the people in the area.Through drawing investigation,drilling verification and rift structure and multidisciplinary studies,a systematic study of the karstic water in the southern margin of Ordos basin was carried out.The results show that the development of karst and karstic water are subject to the control of rift structure.NE-trending rift has a strong water yield property,and is a rift of control water.Compared with NE-trending rift,the NW-trending rift karst of compression-shear or fault-twisting is worse.Nearly east-west compressive fracture,water yield property is worse,and is a water-blocking rift.Interaction among the three major tectonic belts formed a grid-like and layered underground piping system.It has the control effect on alternating karstic groundwater,migration and enrichment,runoff and drainage of karstic water.
出处
《西北地质》
CAS
CSCD
2010年第3期106-112,共7页
Northwestern Geology
基金
中国地质调查局"鄂尔多斯盆地地下水勘查项目"(1212010331302)
