Genetic Mechanism and Water Quality for Micro-Confined Groundwater Beneath the Chengdu Plain, Sichuan Province
详细信息
- 责任者：Xu Guanli (College of Earth Science ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Sun Chuanmin
- 刊名：Acta Geologica Sichuan
- 出版年：2008
- 卷期：28(4)
- 关键词：地下水 ; ground water ; 承压水 ; confined waters ; 四川 ; Sichuan
- 页码：p.319-323
- 图表：3 illus., 1 table, 6 refs.
- 分类号：1701
- issnNo：ISSN1006-0995
- isbnNo：CN51-1273/P
摘要
This paper makes an approach to the occurrence and genetic mechanism for the micro-confined groundwater. The micro-confined groundwater is confined to the Upper Cretaceous and the Lower and Middle Pleistocene with the Quaternary clay bed as impermeable cap formation. In the hill country around the Chengdu Plain, the aquifer is exposed and recharged by meteoric water due to denudation of the clay bed. The micro-confined groundwater migrates in fissures, forming ascending springs when migrating in faults.