Abstract:Based on basic data, such as the installation log of Malingshan seismic station, combined with field survey results, we make a comparative analysis of the apparent resistivity data of the station in the past 10 years using the three-dimensional finite element method and combining auxiliary observation data such as water level, rainfall and air temperature. Because the station is located in Anqiu-Juxian fault of Tanlu fault zone, the underground structure is relatively complex. There is a height difference between the measuring electrodes at EW oriented, and the apparent resistivity characteristics are clear and complex. The comprehensive study shows that the NS apparent resistivity change of the station is mainly affected by the temperature, the EW apparent resistivity is mainly affected by the water level change, and the water level influence magnitude is about three times that of the temperature. In July and August, the two directions are affected by the short-term rapid rainfall at the same time.
WANG Qinglin,XIE Tao,SUN Huaifeng. Analysis on the Annual Variation Characteristics of Apparent Resistivity at Malingshan Seismic Station in Tancheng[J]. jgg, 2021, 41(10): 1004-1007.