The Lianyungang-Linyi-Sishui DSS profile starts from Lianyungang of the Jiaodong Rise in the east, crosses the Tantan-Lu Fault Zone, and reaches Feicheng of the West Rise in the west, with a total length of about 350 km.
The results show that (Figure 3.13): the crustal structure of the Jiaodong Rise in the eastern part of the profile and that of the Lushilu Rise in the western part of the profile are similar, and the basal basement is shallow, with a stable structure characterized by lateral uniformity and increasing velocity with depth. 3km, the crust is characterized by a stable structure with lateral uniformity, layering, and increasing velocity with depth, the eastern Jiaodong Rise of the Moho interface is slightly shallow, about 32~34km, with an average velocity of about 6.2km/s, and the western Lushi Rise is deeper, about 33~35km, with an average velocity of about 6.3km/s. The central Tantanlu Fracture Zone has a slightly lower intracrustal velocity, and the lower crust appears to have a low-velocity block tectonics, with the Linyi East Tantanlu Fracture Moho interface subsidence, buried depth of about 36km, to the west of Linyi near the Moho interface uplift, buried depth of about 33km. show that the Tanlu Fracture Zone crust by extrusion and distortion, translational faults, super-crustal fracture tectonic features.
Figure 3.13 Crustal P-wave velocity structure of Lianyungang-Linyi-Sishui DSS profile