【摘要】 水热型地热系统是指以水或蒸汽为主要热储介质和热传导介质的地热系统，作为主要的地热资源类型，具有重要科学研究和开发利用价值。综述水热型地热系统的水文地球化学研究方法和进展，主要包括以下几个方面：水化学研究方法，介绍传统水文地球化学方法、多元统计分析方法和机器学习的非线性分析方法，以及不同方法的特点；同位素技术，概述常用的同位素技术在水热系统中的用途和应用实例，以及近期在地热研究中出现的同位素指标；地热温度计，介绍传统地球化学温标温度计、多组分地热温度计和基于活度理论的地热温度计，对比它们的适用条件和优缺点，旨在为水热型地热系统的地球化学研究提供一个基础性的参考框架。未来应该加强水化学特征分析方法的优化和标准化、同位素技术精度的提高、地热温度计的适用性和可靠性评估等方面，以实现水文地球化学方法在水热型地热资源勘查中的高效应用。更多还原

【Abstract】 Hydrothermal geothermal system refers to the geothermal system with water or steam as the main heat storage medium and heat transfer medium. As the main type of geothermal resources, it has important value of scientific research, development and utilization. This article reviews the geochemical research methods and advances of hydrothermal geothermal systems, focusing on the three aspects: one is the research methods of water chemistry,including traditional hydrogeochemical methods, multivariate statistical analysis methods, and nonlinear machine learning analysis methods; the other is isotope techniques, summarizing the common applications and examples of isotope techniques in hydrothermal systems, as well as the recent isotopic indicators in geothermal research; the last is geothermal thermometers, introducing traditional geochemical thermometers, multi-component geothermal thermometers, and geothermal thermometers based on activity theory, and comparing their applicability and pros and cons. This paper aims to provide a basic reference frame for the geochemical research of hydrothermal geothermal systems. In the future, we should strengthen the optimization and standardization of hydrochemical characteristics analysis methods, improve the accuracy of isotope technology, and evaluate the applicability and reliability of geothermal thermometers, so as to realize the efficient application of hydrogeochemical methods in the exploration of hydrothermal geothermal resources.更多还原