Study On Hydrogeochemical Characteristics And Genesis Of Hailuogou Hot Spring

Hailuogou is a famous tourist attraction in western Sichuan,known for its low altitude modern glaciers,and also rich in geothermal resources.Hot spring bath is also one of the tourism features.With the large-scale development and utilization of geothermal resources,natural hot spring water has been unable to meet the needs of production and life,the urgent need to obtain a large number of underground hot water through drilling,since 2000 in Hailuogou area a series of hot spring drilling,Most of the failure ended,wasting a lot of material resources at the same time also fully exposed the lack of a clear understanding of the region's hot water causes,resulting in the selection of the wrong drilling rake area,so the Hailuogou geothermal genesis in-depth study It becomes urgent.Some of the previous studies have been carried out on the Hailuogou area.However,most of them have been mainly studied by geological survey or hot spring distribution,and have not carried out research on hot spring hydrogeochemistry.The lack of more scientific research in accordance with.This paper will start from the geological-hydrogeological conditions and hydrogeochemical characteristics of Hailuogou area.First of all,according to the regional geological background,hydrogeological conditions and the distribution of hot springs to determine the initial supply of underground hot water sources,runoff and excretion channels.Then,through the systematic analysis of the water chemistry data,the possible reaction of the underground hot water in the runoff and the hydraulic connection with the underground cold spring and the surface water body were carried out,and the situation of the hot water in the underground hot water was clarified.Finally,The necessary conditions for the formation of three hot springs to determine the genetic model of Hailuogou hot springs.It is found that the Hailuogou hot spring belongs to the medium and low temperature convective geothermal system.Its distribution is controlled by structure.It is exposed to three vertical crushing zones.The main coastal hot water is mainly from southwest to northeast.The water chemistry type is HCO3—Na·Ca type,mainly receiving atmospheric precipitation and a small amount of ice and snow melt water supply,supply elevation above 3000 m,down to do the deep cycle of the process is constantly heating.The thermal storage temperature is between 118.05 ? and 129.80 ?,and the circulating depth of hot water is between 2643.75 and 2937.50 m.The heat storage temperature is between 118.05 ? and 129.80 ?.