水热型地热资源地球化学勘探技术研究进展

地球化学勘探技术在水热型地热资源勘探中的应用研究具有较长的历史，迄今已形成了一套基于气体与元素指标的勘探技术体系，涵盖了众多技术指标，且已在世界各地诸多地热田勘探研究中获得了广泛应用。结果揭示，在预测地热田发育有利部位、估算深部热储温度以及推断地热水来源等方面，地球化学勘探技术都可发挥其特有的作用，是一种经济有效的地热勘探技术，具有良好的应用前景。但地热地球化学勘探技术也面临其自身的局限性，其应用研究不仅受地热田类型的限制，而且目前主要集中于已知地热田上方的验证性研究，技术本身的多解性也较强。因此，在地热地球化学勘探技术完善与应用研究方面，还有待进一步深化。

Research Advances of Geochemical Exploration Techniques for Geothermal Resources of Hydrothermal Type

Geochemical exploration technique has a long application and research history in exploring for the geothermal resources of hydrothermal type. It has established a set of gas- and element- based exploration technique series, which covers numerous geochemical indicators. Such geochemical methods and indicators have been widely used in geothermal exploration worldwide. The results show that these techniques can play unique roles in predicting the favorable areas for geothermal resources to develop, estimating the temperature of the deep geothermal pools, and inferring the sources of the heat and waters, so they can act as cost-efficient geothermal exploration methods with bright application prospects. Even though, these techniques also have their own limits in the application research. The application research of the geothermal geochemical exploration techniques is not only limited to certain types of geothermal field types, but also mainly concentrate on the existing geothermal fields for verification of the effectiveness of the exploration techniques, and most geochemical anomalies also have strong ambiguities. Therefore, the further research development of geothermal geochemical exploration techniques and their applications should be conducted in the future.