Abstract: The buried-hill in Wangjiagang-Bamianhe area has a low exploration degree in the south slope of Dongying depression. Its complicated residual stratigraphic structure and unclear development pattern seriously restrict the buried-hill exploration. In this study, the distribution of the residual formation was determined by lithostratigraphic correlation in field, pale-biostratigraphic division, and seismic calibration and trace; meanwhile, based on the technology of tectonic evolution recovery, the control of multiple tectonic movements on formation erosion and residual is clarified. The results show that the study area was affected by many tectonic movements such as the compressional orogenesis of Indo-china movement and extensional rifting of Yanshan movement, the residual strata of buried-hill show a pattern of seesaw type in east-west direction because of the frequent squeezing and stretching; simultaneously, the Mesozoic-Paleozoic formation was controlled by a series of north-west faults. The formation in the uplifted side of north-west faults generally is eroded seriously; while in the downthrown side, the Mesozoic is characterized by the characteristics of "near thick far thin", and the Upper Paleozoic has the characteristics of:"thin or convex bottom", and the formation of Lower Paleozoic is stable.

Key words: Wangjiagang-Bamianhe area, buried-hill of Mesozoic-Paleozoic, residual formation, controlling factor, Dongying depression