氡、汞测量用于断裂活动性和分段的研究

Study on Activity and Segmentation of Active Fault Using Measurements of Radon and Mercury Gases

作者首先给出海原活动断裂带从边沟至硝口的３条较长次级剪切断层、干盐池拉分盆地和边沟推挤构造区内的断层，以及尾端挤压构造区内的六盘山东麓逆断层的气氡、气汞浓度测量结果，然后分析了断层气浓度与断层活动性之间的关系。研究结果表明，在测试条件大体一致的基础上，气氡、气汞浓度与断层活动性之间有着明显的对应关系。

In this paper, measurements of Radon and Mercury gases densities were given for the first time along the Haiyuan active fault zone, including 3 longer secondary shear faults from Biangou to Shaokou, faults in Ganyanchi pull apart basin and Biangou push up structure as well as the thrust fault of east pedimont of Liupanshan Mountain in the end compressional area. Then relations between fracture gases densities and faulting activity were analysed. The results show that there are distinct corresponding relations between Radon and Mercury gases densities and faulting activity, when the measure conditions were roughly same, those prove that fault gasmetry method is an effective measure for the study of activity and segmentation of an active fault.