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通过对苏北盆地高邮凹陷的上、下两套侵入岩与断层的错断及其与构造运动强弱的关系、与油气成藏期的关系以及侵入岩的平面分布研究,提出了侵入岩的侵入时期为三垛期,而非盐城期。通过对晚白垩世以来苏北盆地各期构造运动及其伴生火山活动的分析,认为高邮凹陷侵入岩的成因主要由于晚始新世至渐新世末,该区发生了三垛运动,并发育一系列北东及北西向的断裂构造,导致了岩浆活动,并以侵入特征为主。
Based on the study of the relationship between the faults and their relationship with the tectonic movement in the upper and lower intrusive rocks and faults in the Gaoyou Sag, Northern Jiangsu Basin, the relationship with the hydrocarbon accumulation period and the plane distribution of intrusive rocks, Invasion period of three stacks, rather than Yancheng period. Based on the analysis of the tectonic movements and associated volcanic activities in the Subei Basin since the Late Cretaceous, it is concluded that the genesis of the intrusive rocks in the Gaoyou sag is mainly due to the evolution of three stacks in the area since the Late Eocene to the Oligocene. A series of northeastern and northwesterly fault structures have resulted in magmatic activity with predominantly intrusive characteristics.