Figure 7.

Geological sections of the Qaidam basin based on interpretations of seismic profiles. (A) SW–NE-striking section across the central part of the basin, showing the continuity of Cenozoic successions. Basinward thrusting had not started until the Late Miocene when the Shizigou Formation was deposited as growth strata. (B) The west–east-striking section in the eastern Qaidam basin, showing transgressive overlapping of units toward the east. Refer to Fig. 1 for locations of the two sections.