氡、氦等气体地球化学在地震科学研究中的进展

系统回顾了氡、氦的气体地球化学特征及其在地震科学研究中的应用情况。在分析氡、氦等地下气体在地壳中浓度变化的影响因素基础上，总结出氡、氦等地下气体浓度变化具年变（或日变）规律，且受多种因素诸如其自身的地球化学行为、气候条件、地质构造及区域应力场等的综合影响。归纳了近30年来在氡、氦的理论和实验研究以及氡异常的形成机理研究方面所取得的进展。氡、氦等地下气体在地震监测预报及基础研究方面日益发挥出越来越重要的作用，但对其自身的认识还远远不够，提出了今后应在氡、氦等地下气体的异常迁移、实验研究、资料处理过程中对干扰因素的排除以及开展深部气体运移与地震活动的关系等方面开展研究的建议。

THE DEVELOPMENTS OF GEOCHEMISTRY OF RADON AND HELIUM IN SEISMOLOGY

Geochemical characteristics of radon and helium and their applications in seismology are systematically reviewed. Based on the factors affecting the concentrations of subsurface gases such as radon and helium in the crust, the annual(or diurnal) variations of the concentrations of subsurface gases are concluded, and comprehensively affected by many factors such as their geochemical characteristics, climate conditions,geological tectonics and regional tress fields etc. Advances of theory and experiment studies and formation of helium and radon anomalies in the past 30 years are summarized in detail. Finally, some suggestions on the further study of helium and radon and their applications in seismology are proposed in this paper.The following aspects would be further studied: (1)the relationship between migration mechanism of deep gases and seismology, (2)multiple monitoring of seismic measurements including radon, helium, carbon dioxide, mercury, methane, fluid, geothermics etc, (3)the selection of seismological station sites for subsurface gases observation, (4) the study on experiments of generating subsurface gas anomalies, (5)the processing methods of observation data etc.