方正地区老尖山玄武岩节理分布特征及其油苗成因探讨

THE RESEARCH ON THE LAOJIANSHAN BASALT JOINTS DISTRIBUTION CHARACTERISTICS AND ITS CAUSE OF OIL SAMPLE FORMATION IN THE FANGZHENG DISTRICT

在对老尖山玄武岩节理分布特征分析的基础上,通过油苗地化特征与方正断陷烃源岩地化特征对比,认为老尖山玄武岩油苗是方正断陷达连河组和新安村组生油岩生成的油气,沿断裂运移至老尖山玄武岩的孔、洞、缝中保存下来的结果。

Based on the analysis of Laojianshan basalt joint distribution characteristics, through the contrasting gepchemical characteristics of the oil sample with those of the oil source rock of Fangzheng fault depressions, tbe writer insisted that Laojianshan basalt oil sample is produced by the oil source rock of the Dalianhe group and Xinanchun group of Fangzheng fault depressions. Morever, the oil and gas migrated along the frac- tures into the holes, caves and fissures of Laojianshan basalt and was conserved.