Based on the characteristic of rock strength , an expression of happening probability of influencing structural earthquake was derived 摘要依据岩石强度的分形特性，导出了影响构造地震发生概率的表达式。
2.
The results show that the main factors influenced structural earthquake are earth damage degree , fault length stress and an angle between extend stress axes and fault strike 研究结果表明，地壳损伤程度、断层长度、应力及拉应力轴与断层走向之间的夹角是影响构造地震的主要因素。
3.
Based on the review of petroleum exploration in the south margin of junggar basin in the past half century , the difficulties of piedmont exploration in different phases are summarized as follows : complex structures : large variability in reservoir quality and difficulty in predicating its scale ; inaccurate image of seismic data ' s migration processing in complete trough structural belts ; requirement for high technology of drilling , etc 摘要通过对准噶尔盆地南缘半个多世纪的油气勘探历史回顾，确定了山前勘探各个阶段所面临的主要难点：构造存在多解性、储层质量变化大与规模难以预测、高陡构造地震处理准确偏移成像难度大、钻井技术要求高。
