摘要
以南阳盆地和开封-周口地区为例,以实地取样和实验分析数据为基础,结合地质构造背景,从造成深层地下水高氟的根本原因出发,探讨了基于构造控制的深层高氟地下水成因,得出结论:(1)造成深层地下水高氟的根本原因是水动力条件的改变;(2)构造运动一方面使基底厚度不均,进而可能会改变深层地下水水动力条件或地下热水分布,另一方面形成的断裂可能改变深层地下水的补给源,同时也可能改变深层地下水的径流途径和速度,这些由地质构造产生的一系列影响都可能形成深层高氟地下水;(3)断层沟通地下高氟热水并不是导致深层高氟地下水形成的唯一原因.
According to the data from site sampling in Nanyang basin and Kaifeng-Zhoukou region, the genesis of high-fluoride deep groundwater was discussed based on geological structure, and the following conclusions are drawn from the root cause of high-fluoride deep groundwater ： （ 1 ） Key factor of the formation of high-fluoride deep groundwater is the change of hydrodynamic conditions; （2） on one hand geological structure makes the base uneven, and this may change the original hydrodynamic conditions or the distribution of underground hot water, on the other hand the fractures formed in tectonic movements may add new sources of deep groundwater or change the channels or speed of groundwater runoff. All of these made by geological structure are likely to form high-fluoride deep groundwater; （3） the connection of high-fluoride underground hot water by fractures is not the only way to make high-fluoride deep groundwater come into being.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2013年第5期86-91,共6页
Journal of Natural Science of Hunan Normal University
基金
国家自然科学基金资助项目(40802057)
关键词
深层地下水
高氟
地质构造
deep groundwater
high-fluoride
geological structure
