The origin of the Mesozoic and Cenozoic volcanism in Northeast China (NE
China) and the formation of the Songliao Basin (SB) therein are highly
controversial topics in the earth sciences. Moreover, the crustal
structure closely associated with these physical phenomena remains
unclear. In this study, ambient noise tomography is performed in NE
China. A total of 127 broadband seismic stations with waveform data
lasting one year are employed to extract the dispersion curves of
Rayleigh waves. Finally, the Rayleigh wave group velocity distributions
at 6–40 s and the S-wave velocity structure at depths of 0–60 km are
obtained. The results reveal a high-velocity anomaly in the lower crust
beneath the SB that might be related to magmatic underplating, and an
obvious yet slight low-velocity anomaly is discovered in the middle
crust of the SB that may be generated by magmatic intrusion.
Furthermore, a low-velocity anomaly at near-surface is detected.