鄂尔多斯高原地下水流系统的多层结构循环模式——来自深孔中PACKER系统分层水头测定的证据  

Multi-layer circulation model of groundwater flow systems on the Ordos plateau, China: evidence from water head measurements at different depths of a deep borehole by the Packer system

作　　者：赵振宏[1] 王冬[1] 陶正平[1] 李瑛[1] 

机构地区：[1]中国地质调查局西安地质调查中心,陕西西安710054

出　　处：《地质通报》2008年第8期1131-1137,共7页Geological Bulletin of China

基　　金：中国地质调查局国土资源调查项目<鄂尔多斯盆地内蒙古能源基地地下水勘查>(编号:1212010734002)资助。

摘　　要：地下水流系统和循环模式分析是研究地下水形成机理的基础,对正确认识和评价地下水资源具有重要意义。鄂尔多斯高原在含水系统和众多地下水排泄区的控制下,形成了多个不同规模、不同循环深度、相互独立的地下水流系统。PACKER系统分层试验测定的不同深度水头的数据证明,鄂尔多斯高原地下水流系统存在托斯多层水流模式,区域性水流系统一般包含浅循环、中间循环和深循环3个循环系统。浅循环系统的发育深度在200m以内,深循环系统的发育深度大于400m。The study of groundwater flow systems and circulation models are a basis for the study of the groundwater formation mechanism and has great significance for correct understanding and assessments of groundwater resources. In the Ordos plateau, several independent groundwater flow systems with different scales and circulation depths were formed under the control of the aquifer systems and numerous groundwater discharge points. The data from water head tests at different depths by the Packer system prove that the Ordos plateau groundwater flow system is a typical ＂Toth model＂, i.e. the regional groundwater flow system generally contains three systems： deep circulation system, intern^ediate circulation system and shallow system. The shallow circulation system occurs within 200 m below the surface and the deep system circulates below 400 m depth.

关 键 词：地下水流系统 循环模式 PACKER系统 鄂尔多斯高原 

分 类 号：P641[天文地球—地质矿产勘探]