断层逸出气测量在活动断裂研究中的应用

Application of Measurements of Fault Overflow Gasesin Active Fault Research

从断层逸出气测量应用于活动断裂研究的工作原理、研究方法及技术思路入手,对沂沭断裂带、海原8.5级地震断裂、鲜水河断裂带和山东平原地区活动断裂等的断层逸出气进行系统地分析、对比和研究,探讨了断层逸出气与断层活动性和贯通性之间的关系,及其在断层几何学研究和平原地区活断层探测中的应用等问题。结果表明:断层逸出气Rn,Hg的含量和变化梯度可以作为评价断层活动性和贯通性的参考指标,断层逸出气测量为断层几何学和运动学研究提供了一种快捷方便的探测方法,是确定隐伏断层具体位置的有效手段之一。

Starting from the technical thought,working principle and research method of fault overflow gas measurement applied to active fault research,in this paper,we have discussed the relationship between fault overflow gases and fault activity and continuity,the application of fault overflow gases in fault geometry research and active fault detection in plain area,based on the systematic analysis,comparison and study of the fault overflow gas of Yishu Fault Zone,Haiyuan M 8.5 earthquake fault,Xianshuihe fault and Shandong plain active fault.The results show that the content and change gradient of Rn and Hg of fault overflow gas can be used as the reference index to evaluate fault activity and continuity,the fault overflow gas measurement provides a quick and convenient detection method for the study of fault geometry and kinematics,which is a very effective means to determine the specific location of hidden faults.