Soil gas survey in and around Shanchiao fault of northern Taiwan for establishing continuous monitoring station

Abstract

The present study deals with the soil gas geochemical surveys in and around Shanchiao fault to pick the sites for integrated radon monitoring using SSNTDs to better understand the response of tectonic activity of the fault systems. Throughout these surveys, gathered samples of soil gas has been analysed for radon and carrier gases namely CO2, He, N2, O2, CH4 and Ar. The RAD 7 instrument has been utilized for radon analysis and gas chromatograph instrument for analysing the carrier gases. The predominance of gas spread has been explored based on the results of these surveys and three sites have been chosen for integrated observation with regard to seismotectonic activity to examine the affectability of the sites utilizing SSNTDs. From these sites, a site will be chosen for future long duration continuous observance on the premise of its affectability towards the seismotectonic activity inside the territory.