中文摘要：

2015年对口泉断裂进行了3期断层气地球化学重复观测，分析了中段石井村剖面和北段上皇庄剖面CO2、Rn、Hg浓度及通量时空变化特征，发现这两条剖面内CO2、Rn浓度及通量时空变化特征基本一致。石井村剖面CO2通量、Rn浓度及通量高于上皇庄剖面。上皇庄剖面Hg浓度及通量3期随时间持续上升。认为口泉断裂断层活动活跃，第四纪活动性中段高于北段，且北段断层活动呈增强趋势。

英文摘要：

Gas geochemistry observations of Kouquan fault have been completed three times during 2015. Temporal and spatial variations of CO2, Rn, Hg concentration and flux have been analyzed in profiles of Shijingcun, the middle of Kouquan fault, and Shanghuangzhuang, the north of Kouquan fault. The results show that temporal and spatial variation of CO2, Rn concentration and flux are basically the same in each profile. The CO2 flux, Rn concentration and flux of Shijingcun profile is higher than that of Shanghuangzhuang profile. Hg concentration and flux of Shanghuangzhuang profile have increased continuously with time. The fault activity of Kouquan fault is active, Quaternary activity in the middle of fault is higher than the north, and fault activity of the north is in enhanced trend.