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 high density Land Acquisition System （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.

Test parameter as follow:

Location: Beijing, China

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: 5m

Source interval: 10m

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)