【摘要】 基于南堡凹陷地震资料的构造解释成果,结合平衡剖面技术可以判断断裂系统的发育情况、研究断裂系统形成机制、重现凹陷的构造演化历史.结果表明南堡凹陷构造样式可分为"坡坪式"、"铲式"和"多米诺式"构造样式,构成了深部的"Y"型断裂组合、浅部的"X"型断裂组合.古近纪为凹陷的裂陷发育阶段,其发育机制为郯庐断裂带控制的伸展变形机制;新近纪为凹陷的拗陷发育阶段,其发育机制为重力、热演化共同控制沉降机制.现今不同圈闭类型的构造格局主要受古近纪构造活动及东营、馆陶期构造活动的控制,受断裂发育演化的影响.更多还原

【Abstract】 The development mechanism of the fault system and the history of the structural evolution of Nanpu Sag are studied according to its seismic data and using balanced section technique.The result shows that,there are three structural styles of "flat and ramp style","listric style" and "Domino style" in Nanpu sag.The structural combination styles form "Y"-type fault combination in deep layers and "X"-type fault combination in shallow layers.The chasmic stage of Nanpu sag is in Tertiary and in the stage,the extending deformation mechanism of the sag is controlled by Tanlu faults,The sedimentation stage of Nanpu sag is in Quaternary,and in this stage,the subsidence mechanism of the sag is controlled by gravity action and thermal action.The structural evolution shows that,the structural pattern of Nanpu Sag is controlled by the structural activities in Dongying period and Guantao period and the structural activities in lower Tertiary.In addition,the fault development and evolution affected by these structural activities lead to different types of traps.更多还原