中国地质2023，Vol.50Issue(6)：1887-1902,16.DOI:10.12029/gc20201027001
河北省张北县新生代玄武岩偏硅酸矿泉水化学特征及成因
Hydrochemical characteristics and formation mechanism of metasilicate mineral water in a Cenozoic basaltic aquifer in Zhangbei county,Hebei Province
摘要
Abstract
This paper is the result of hydrogeological survey engineering. [Objective]Metasilicate mineral groundwater is widely distributed in cenozoic basaltic stratum of Bashang area.It is of great practical significance to study the formation mechanism and water-rock interaction for rational utilization of water resources and development of mineral water industry in this area.[Methods]The formation mechanism of metasilicate mineral groundwater in Cenozoic basalt in the research area was analyzed by collecting environmental hydrochemical samples such as groundwater and rainwater systematically and using mathematical statistics,ion ratio analysis,isotope analysis and other methods.[Results]The metasilicate mineral water is mainly distributed in the groundwater recharge area of the front edge in the Bashang area on southern part of the county;And the mineral groundwater of study area is characterized by low mineralization while the main hydrochemical types of groundwater are HCO3-Ca·Mg and HCO3-Na·Ca;Also,metasilicic acid in groundwater originates from the hydrolysis of sodaclase,plagioclase,olivine and other silicate mineral in basalt,and is affected by rock mineral leaching as well as hydrochemical parameters cation exchange.According to the analytical results of hydrogen-oxygen isotope,it is concluded that the main source of groundwater recharge is local precipitation in summer,and the actual age of groundwater is between 15 a and 60 a.[Conclusions]The formation of metasilicate mineral water in Bashang area of Hebei Province is related to the local special basalt geological structure and specific hydrogeochemical process.关键词
偏硅酸矿泉水/玄武岩/水文地球化学/稳定同位素/水文地质调查工程/张北县/河北省Key words
metasilicate mineral water/basalts/hydrochemistry/stable isotopes/hydrogeological survey engineering/Zhangbei county/Hebei Province分类
天文与地球科学引用本文复制引用
何锦,马雪梅,邓启军,李伟,马学军,郑一迪,刘昭..河北省张北县新生代玄武岩偏硅酸矿泉水化学特征及成因[J].中国地质,2023,50(6):1887-1902,16.基金项目
中国地质调查局项目(DD20160328)资助. Supported by the project of China Geological Survey"Comprehensive Geological Survey of the Northern Section of Taihang Mountain"(No.DD20160328). （DD20160328）
