火山活动影响着深部地热流体向浅表运动的水文地球化学过程，表现出浅表化学组分异常响应。由于目前对火山影响下深部地热流体向浅部运移过程中化学组分异常响应的机制认识尚不完全清楚，无法充分发挥浅表地热流体化学组分响应数据在热储层特征评价中的作用。因此，本项目拟选择长白山火山区聚龙和十八道沟温泉群为研究对象，通过野外监测与取样、室内实验、理论分析的技术方法，揭示火山影响下深部地热流体向浅部运动过程中的水-岩相互作用，定量表征浅层化学组分与深部地热流体运动的响应关系和识别特征，探讨运用浅层化学组分响应数据重建深部地热流体化学组分，并结合集成的多组分溶质地温计和反应溶质运移数值模拟技术确定热储层温度、渗透性能和流体运动特征。以上研究可丰富和扩宽我国火山区深部地热流体地表响应和热储特征研究的理论和方法，为我国火山活动监测预警、火山区深部地热储层特征评价以及地热资源勘探和开发利用提供理论依据和技术支撑。

Volcanic activity affects the hydrogeochemical process of deep geothermal fluid moving to the shallow layer, showing abnormal response of shallow chemical components. At present, due to the insufficient knowledge of the mechanism of abnormal response of chemical components in deep geothermal fluids moving up to shallow under the influence of volcanoes, the role of chemical component response data of shallow geothermal fluids in the evaluation of thermal reservoir characteristics cannot be fully realized. Therefore, this project intends to select Julong and Shibadaogou hot springs in Tianchi volcanic area of Changbai Mountains as research objects. Through field monitoring and sampling, laboratory experiments and theoretical analysis, it reveals the water-rock interaction during the movement of deep geothermal fluid to shallow under the influence of volcanoes, and quantitatively characterizes the response relationship and identification characteristics of shallow chemical components and deep geothermal fluid movement. This project also discusses the application of shallow chemical component response data to reconstruct deep geothermal fluid chemical components, and combines the integrated multi-component solute geothermometer and reactive transport modeling to determine the temperature, permeability and fluid movement characteristics of thermal reservoirs. The above research can enrich and broaden the theory and method of shallow response and thermal reservoir characteristics of deep geothermal fluids in volcanic areas in China, and provide theoretical basis and technical support for monitoring and early warning of volcanic activities, evaluation of deep geothermal reservoir characteristics in volcanic areas and exploration and exploitation of geothermal resources.