Hydrochemical Characteristics And Water Rock Interaction Of Arxan Springs

Arxan springs is famous for abundant spring resources and mineral elements which attract people to come here for tourism and convalescence.With the development of tourism,exploitation of spring resources has became mor and more.In this context,it is necessary for us to stretching over springs for more in-depth research,in order to fully understand its composition,formation,to support more effective utilization of springr resources.Research results show that cold spring water chemical types are Ca.Na-HCO₃.SO₄,Na.Ca-HCO₃,hot spring water chemical type is Na-HCO₃.It is determined that the chemical composition of Arxan springs are from water-rock interaction through the Gibbs.Based on the correlation analysis of each component,minerals source of Na⁺,Ca²⁺,Mg²⁺,SO₄^2-,HCO₃^-,SiO₂,F-and Sr²⁺ in springs were determined.To simulate the reverse path of spring No.0 and Wuzang spring through Phreeqc.No.0,in the process of formation,occurred in dissolution of albite,halite,calcite,gypsum,CO₂,a small amount of fluorite,chloriteand and precipitation of a small amount of illite,anorthite,and strong cation exchange effect.Water rock interaction of Wuzang spring is dissolution of albite,halite,anorthite,gypsum,CO₂,a small amount of chlorite,fluorite,celestite and precipitation of montmorillonite,a small amount of illite,and the strong cation exchange and adsorption.To simulate the mixing of No.30 spring.The simulation results show that the hot and cold water mixing,occurred in precipitation of albite,gypsum,illite,CO₂,a small amount of halite and dissolution of montmorillonite,K-feldspar,a small amount of celestite,fluorspar,and and cation exchange and adsorption about Na⁺,Sr²⁺ after mixing of cold and hot water.Chemical components and the water rock interaction of Arxan springs are dominated by large areas of faults,joints and fissures.The circulation of springs are in different fractures,which leads to the diversity of the source of mineral and the amount of mineral transfer.Even though the location of springs is similar,there are some differences in the hydrochemistry of water and the of water-rock interaction.