Abstract The concentration of soil gases Rn, CO2, CO and H2 are measured in Huanghuayingzi and Taohuatu, which are in Chaoyang-Beipiao fault in western Liaonin province. The results of cross-fault leveling in Huanghuayingzi show that the concentrations of soil gases Rn, CO2, CO and H2 vary from 1.027 to 14.35 kBq/m3, 0.1% to 0.77%, 0.2 to 1.4 ppm and 21.45 to 303.4 ppm, respectively. The results of cross-fault leveling in Taohuatu show that the concentrations of soil gases Rn, CO2, CO and H2 vary from 1.88 to 18.15 kBq/m3, 0.23% to 4.53%, 0.2 to 2.6 ppm and 12.03 to 399 ppm, respectively. The geochemical characteristics of soil gases show that the high concentration of soil gases Rn, CO2, CO and H2 within the confines of the leveling line has a quasi-synchronous characteristic, and concentrations of some measuring points are higher than anomaly threshold. These characteristics of soil gases have revealed that the two cross-fault leveling observation sites are all passed through by the major fault of Chaoyang-Beipiao fault. The abnormal tension of the leveling data since 2018 both in Huanghuayingzi and Taohuatu are reliable, which is related to the tectonic activity.
WANG Xilong,YANG Mengyao,KONG Xiangrui et al. Comparative Study on Cross-Fault Leveling and Geochemical Characteristics of Soil Gas of Chaoyang-Beipiao Fault in Liaoning Province[J]. jgg, 2021, 41(6): 600-605.
WANG Xilong,YANG Mengyao,KONG Xiangrui et al. Comparative Study on Cross-Fault Leveling and Geochemical Characteristics of Soil Gas of Chaoyang-Beipiao Fault in Liaoning Province[J]. jgg, 2021, 41(6): 600-605.
