海南五指山市红河村饮用天然矿泉水水文地质特征评价

Hydro-geological characteristics and evaluation of drinking natural mineral water in Honghe Village,Wuzhishan City,Hainan Province

五指山市位于海南岛中部,而海南岛中部地区发现饮用天然矿泉水实例极少,对该区域饮用矿泉水的研究意义重大。笔者在五指山市红河村地区通过地质填图、综合物探、钻探、抽水试验等技术方法和手段,探获饮用天然矿泉水资源储量为2 560 m^(3)/d,成功取得了查找饮用天然矿泉水的实践成果。本文从自然地理、地质背景、水文地质条件、饮用天然矿泉水的形成机制、补径排条件等方面进行了系统分析,并从饮用天然矿泉水的物理性质、水量、水质、水化学特征等方面对其进行了综合评价,研究结果表明:五指山市红河村地区大面积出露二长花岗岩,断层十分发育,规模较大,纵向延伸长度长,深度较深。由于大气降水的补给,地表水向深部运移渗透,溶解矿物质,经循环过滤,形成了无污染、偏硅酸含量高的饮用天然矿泉水资源,属于受构造裂隙控制类型的饮用天然矿泉水,其研究结果可为该类型饮用天然矿泉水的勘查、开发和利用提供理论依据。

Wuzhishan City is located in the middle of Hainan Island,and there are few examples of natural mineral drinking water in the middle of Hainan Island,which means great significance to the study of mineral drinking water in this area.Through geological mapping,comprehensive geophysical exploration,drilling,pumping test and other technical methods and means in Honghe Village of Wuzhishan City,the resources reserves of natural drinking mineral water are found to be 2 560 m~3/d,and the practical results of searching have been successfully obtained.This dissertation analyses the physical geography,geological background,hydro-geological conditions,formation mechanism of natural mineral drinking water,supply and drainage conditions and likewise,and a comprehensive evaluation on the aspects of physical properties,water quantity,water quality and hydro-chemical characteristics of drinking water.The research results show that:Monzonitic granite outcrops a large area in Honghe Village,Wuzhishan City.The faults are very developed,large in scale,long in longitudinal extension and deep in depth.Due to the supply of atmospheric precipitation,surface-water migrates and penetrates to the deep and dissolves minerals,and then circulates and filters to form non-polluting and high metasilicic acid natural mineral drinking water resources,which belongs to the type controlled by structural fractures.The research results can provide theoretical basis for the exploration,development and utilization of this type of natural mineral drinking water.