【摘要】 南堡凹陷内存在新生代明显的伸展构造和不明显的走滑构造系统。伸展构造和走滑构造是控制凹陷形成和演化的主体构造 ,由不同级别的伸展断层构成一系列大型铲式扇正断层系。南堡凹陷裂陷作用机制主要表现为主动裂陷 ,同时也有被动裂陷成分。裂陷动力学过程中共经历了 5次构造反转。更多还原

【Abstract】 The formation and its evolution of the Nanpu Depression were dominated by strongly extensional and slightly strike slip tectonics,which consists of a series of large scale listric fault systems formed by extensional faults of different magnitudes.Active rifting was the main forming mechanism for the formation of the Nanpu Depression,although there existed passive rifting simultaneously.Based on the detailed geodynamic analysis,five tectonic inversion periods were identified within rifting history.更多还原