Detection and imaging of faults and other subsurface structures in urban settings
Institute of Geophysical and Geochemical Exploration (IGGE) of CAGS successfully performed a high density 2D and 3D combined survey in sub-center of Beijing in September, 2018, to get a high-resolution subsurface images and fault structures.
SmartSolo node seismic system is employed to minimize the impact on the environment and the local population. The subsurface fault structure in depth can be identified from the stacking profile.
|Survey area||483 m × 400 m|
|Target||Fault detection (target depth: 600 m)|
|Survey||2D + 3D High density seismic array|
|Channel count||IGU-16 1C 5-Hz, 700 channels|
|Source||Vibroseis,1600 VPs, sweep 10-130Hz, 12 s|
|Receiver interval||5 m|
|Source interval||10 m|
Google Earth image of the survey area. The shot line is in red, and the color gradient indicates the fold density. (Shuiyu Luo, IGGE, 2018)