高邮凹陷北斜坡辉绿岩形成时期的确定及其与油气关系

高邮凹陷北斜坡普遍发育辉绿岩侵入体 ,辉绿岩侵入时期、油气运移期以及圈闭形成期三者的匹配关系直接影响到研究区的油气富集规律和成藏模式。依据区域构造运动的特征、演化 ,辉绿岩的侵入特征 ,以及辉绿岩分布与断层的关系等综合分析 ,提出了高邮凹陷北斜坡发育的两套辉绿岩均为三垛事件的产物 ,并探讨了辉绿岩侵入与油气成藏的关系。图 2参 3(毛凤鸣摘 )

Determination of the forming time of diabase in the northern slope of Gaoyou sag and it''s relationship with oil and gas

The northern slope of Gaoyou sag develops diabase intrusive body generally. The matching relationship among diabase invasion period, oil and gas migration time and trap forming time affects oil and gas enrichment regularity and pool-forming model directly. According to the comprehensive analysis of regional tectonic movement character and evolution, diabase invasion character and the relationship between diabase distribution and fault, it suggests that the two sets of diabase developed in northern slope of Gaoyou sag are both the products of Sanduo event. Also the author has discussed the relationship between diabase invasion and pool-forming.