Seismic profile of Huangzhuang-Gaoliying fault in Beijing by Mini-sosie method
北京断陷黄庄—高丽营断层伪随机可控震源地震剖面

Huangzhuang-Gaoliying fault,located in the northwest edge of Beijing fault depression belt,is an important buried fault in the Quaternary tectonic period.To know the geological characteristics of the fault,high-resolution seismic exploration with Mini-sosie vibrator was conducted.The study focuses on the part of the fault through the Olympic park by using Mini-sosie method and near-surface seismic profile.Three-component wave equation modeling and ray tracing method were implemented to design the geometry and parameters in field data acquisition to meet the requirement for city seismic survey.The decoding principle and the anti-noise capacity of Mini-sosie vibrator were analysed to demonstrate that the Mini-sosie is feasible for the city environment with strong noise.After high-solution data processing,a seismic depth migration section with high-resolution in the strong noise environment in this survey area was obtained.Huangzhuang-Gaoliying fault in the seismic depth migrated section can been seen clearly.The result of geological interpretation clarified the thickness of Cenozoic strata in the two sides of the fault.