{"title":"混合地热水中偏硅酸的来源和影响因素","authors":"Yanqiu Wu , Xun Zhou","doi":"10.1016/j.geothermics.2024.103098","DOIUrl":null,"url":null,"abstract":"<div><p>The content of metasilicic acid in geothermal water is usually high. In this paper, the hydrochemical composition of hot springs and geothermal wells from different lithologic aquifers was studied by End-member mixing analysis, and the source and influencing factors of the H<sub>2</sub>SiO<sub>3</sub> concentration in geothermal water were revealed. The results show that the H<sub>2</sub>SiO<sub>3</sub> concentration in geothermal water is almost independent of the lithology of the surrounding rock at surface of hot springs and geothermal wells. Temperature is an important control factor in the H<sub>2</sub>SiO<sub>3</sub> concentration of hot springs and geothermal well waters. The metasilicic acid in geothermal water mainly comes from the geothermal source water, and the mixing of a large proportion of cold water will dilute the metasilicic acid, resulting in a relatively large variation in hot springs and geothermal well waters. The mixing process evaluation gives a good overview of the fluid flow (reservoir temperature and circulation depth) within the region.</p></div>","PeriodicalId":55095,"journal":{"name":"Geothermics","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Source and influencing factors of metasilicic acid in mixed geothermal waters\",\"authors\":\"Yanqiu Wu , Xun Zhou\",\"doi\":\"10.1016/j.geothermics.2024.103098\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The content of metasilicic acid in geothermal water is usually high. In this paper, the hydrochemical composition of hot springs and geothermal wells from different lithologic aquifers was studied by End-member mixing analysis, and the source and influencing factors of the H<sub>2</sub>SiO<sub>3</sub> concentration in geothermal water were revealed. The results show that the H<sub>2</sub>SiO<sub>3</sub> concentration in geothermal water is almost independent of the lithology of the surrounding rock at surface of hot springs and geothermal wells. Temperature is an important control factor in the H<sub>2</sub>SiO<sub>3</sub> concentration of hot springs and geothermal well waters. The metasilicic acid in geothermal water mainly comes from the geothermal source water, and the mixing of a large proportion of cold water will dilute the metasilicic acid, resulting in a relatively large variation in hot springs and geothermal well waters. The mixing process evaluation gives a good overview of the fluid flow (reservoir temperature and circulation depth) within the region.</p></div>\",\"PeriodicalId\":55095,\"journal\":{\"name\":\"Geothermics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-07-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Geothermics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0375650524001858\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geothermics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0375650524001858","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Source and influencing factors of metasilicic acid in mixed geothermal waters
The content of metasilicic acid in geothermal water is usually high. In this paper, the hydrochemical composition of hot springs and geothermal wells from different lithologic aquifers was studied by End-member mixing analysis, and the source and influencing factors of the H2SiO3 concentration in geothermal water were revealed. The results show that the H2SiO3 concentration in geothermal water is almost independent of the lithology of the surrounding rock at surface of hot springs and geothermal wells. Temperature is an important control factor in the H2SiO3 concentration of hot springs and geothermal well waters. The metasilicic acid in geothermal water mainly comes from the geothermal source water, and the mixing of a large proportion of cold water will dilute the metasilicic acid, resulting in a relatively large variation in hot springs and geothermal well waters. The mixing process evaluation gives a good overview of the fluid flow (reservoir temperature and circulation depth) within the region.
期刊介绍：
Geothermics is an international journal devoted to the research and development of geothermal energy. The International Board of Editors of Geothermics, which comprises specialists in the various aspects of geothermal resources, exploration and development, guarantees the balanced, comprehensive view of scientific and technological developments in this promising energy field.
It promulgates the state of the art and science of geothermal energy, its exploration and exploitation through a regular exchange of information from all parts of the world. The journal publishes articles dealing with the theory, exploration techniques and all aspects of the utilization of geothermal resources. Geothermics serves as the scientific house, or exchange medium, through which the growing community of geothermal specialists can provide and receive information.
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