Restoration of denuded strata thickness and prototype basin of the Upper Jurassic-Lower Cretaceous in eastern Linqing Depression of Bohai Bay Basin
Wang Mingjian1, Zhang Xunhua1, Zhang Yunbo2, He Dengfa2, Sun Yanpeng2, Li Wentao3
1 Qingdao Institute of Marine Geology，Qingdao 266071，Shandong 2 School of Energy，China University of Geosciences（Beijing），Beijing 100083 3 Geological Scientific Research Institute of Shengli Oilfield，SINOPEC，Dongying 257015，Shandong
Abstract：Eastern Linqing Depression of the Bohai Bay Basin has experienced a number of tectonic movements since the Mesozoic and the basin nature is different from each other in different tectonic stage.This article analyzed the tectonic evolution history since the Late Jurassic and restored the denuded thickness and the original thickness of the Upper Jurassic-Lower Cretaceous in eastern Linqing Depression. Based on the above results，this article studied the development characteristics of the Late Jurassic-Early Cretaceous basin combined with the fault system diagram of the same period.Eastern Linqing Depression is a rift basin in the Late Jurassic-Early Cretaceous stage.The denuded thickness is mainly controlled by the structures formed by Yanshan tectonic movement and characterized by phase distribution in NE direction.The Late Jurassic-Early Cretaceous basin distributed in the NNE direction and strata distribution is mainly controlled by faults.The thickness centers are located in the hanging wall.
Wang Mingjian,Zhang Xunhua,Zhang Yunbo et al. Restoration of denuded strata thickness and prototype basin of the Upper Jurassic-Lower Cretaceous in eastern Linqing Depression of Bohai Bay Basin[J]. JOPC, 2012, 14(4): 499-506.
