Study of the activity and segmentation of active faults using measurements of radon and mercury gases

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.