| Study of the Activity and Segmentation of Active Faults Using Measurements of Radon and Mercury Gases |
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| 基金项目： | This project was sponsored by the Joint Earthquake Science Foundation (85-08-01-06), China |
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| 摘 要： | In this paper,measurements of gaseous radon and gaseous mercury densities were conducted for the first time along the Haiyuan active fault zone,including three longer secondary shear faults from Biangou to Shaokou,faults in the Ganyanchi pull-apart basin,and the Biangou push-up structure as well as the thrust fault at the eastern pediment of Liupanshan Mountain in the terminal compressional area.Then relations between fracture gas densities and faulting activity were analyzed.The results show that there is a distinct corresponding relation between gaseous radon and gaseous mercury densities and faulting activity,when the measurement conditions are basically the same,and it proves that the fault gasmetry method is an effective technique for study the activity and segmentation of active faults.
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