The Formation Mechanism of Hydrothermal Resources in the Chuxiong Basin, SW China: Insights from the coupling of hydrological process and deep temperature field

The Formation Mechanism of Hydrothermal Resources in the Chuxiong Basin, SW China: Insights from the coupling of hydrological process and deep temperature field | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article The Formation Mechanism of Hydrothermal Resources in the Chuxiong Basin, SW China: Insights from the coupling of hydrological process and deep temperature field Fang Xie, Chuanqing Zhu, Xiaoxue Jiang, Yuanjin Sun, Yonghui Huang, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6561341/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Understanding the deep geothermal field and high-temperature hydrothermal activities is of great significance for the formation machanism of hydrothermal geothermal resources. Therefore, we focus on the Chuxiong Basin near the South Tibet-West Yunnan high-temperature geothermal belt, the largest high-temperature geothermal belt in China. Based on hydrochemical studies and geothermal field calculations, we clarified the control mechanism of deep-circulating water-rock interactions on the hydrochemical types, and finally revealed the geothermal formation mechanism of the hot springs. The results show that the hydrochemical type of the hot springs in Chuxiong Basin is HCO₃–Na, with precipitation serving as the primary recharge source. The Cenozoic and Cretaceous of the basin in the context of high heat flow (72.1 mW/m² on average) are buried shallowly and have low temperatures. However, due to the large thickness of Jurassic deposits in the central part of the basin, the Jurassic and Triassic are buried deeply and have high temperatures. Large, deep faults control the spatial distribution of heat flow and serve as pathways for the ascent of deep hydrothermal fluids. Based on these conclusions, a convective system of deep groundwater circulation under the control of deep large faults is revealed, which provides an important reference for the development and utilization of high-temperature geothermal resources. Chuxiong Basin Honghe Fault Zone Hot Spring Hydrochemical Characteristics Geothermal Field Geothermal Formation Mechanism Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6561341","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":455512667,"identity":"82dff8ba-ecca-4aa0-a5b6-87af242910e6","order_by":0,"name":"Fang Xie","email":"","orcid":"","institution":"State Key Laboratory of Deep Geothermal Resources","correspondingAuthor":false,"prefix":"","firstName":"Fang","middleName":"","lastName":"Xie","suffix":""},{"id":455512668,"identity":"521443c3-3d77-452e-b29e-45041e762560","order_by":1,"name":"Chuanqing 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Therefore, we focus on the Chuxiong Basin near the South Tibet-West Yunnan high-temperature geothermal belt, the largest high-temperature geothermal belt in China. Based on hydrochemical studies and geothermal field calculations, we clarified the control mechanism of deep-circulating water-rock interactions on the hydrochemical types, and finally revealed the geothermal formation mechanism of the hot springs. The results show that the hydrochemical type of the hot springs in Chuxiong Basin is HCO₃\u0026ndash;Na, with precipitation serving as the primary recharge source. The Cenozoic and Cretaceous of the basin in the context of high heat flow (72.1 mW/m\u0026sup2; on average) are buried shallowly and have low temperatures. However, due to the large thickness of Jurassic deposits in the central part of the basin, the Jurassic and Triassic are buried deeply and have high temperatures. Large, deep faults control the spatial distribution of heat flow and serve as pathways for the ascent of deep hydrothermal fluids. 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