针对Re-Os同位素定年方法和应用研究现状和存在的不足，本项目选取塔里木盆地阿满过渡带和四川盆地川东北地区普光、元坝气田为解剖对象，综合使用Re-Os同位素定年技术与常规定年技术，分别就多期熟化作用下Re-Os同位素定年方法和高温热裂解与硫酸盐热化学还原作用(TSR)对Re-Os同位素体系的影响这两个科学问题开展系统地、多层次的对比研究，推动和完善Re-Os同位素定年方法在叠合盆地深层油气成藏年代学中的应用。

On the basis of current conditions and deficiencies of the Re-Os isotopic dating methods and applications，the transitional zone between Awati and Manjiaer depressions in the Tarim basin and the Puguang, Yuanba gas fields in the Sichuan basin were selected for the study of the Re-Os isotopic dating methods in deep layer of superimposed basin. In this study, the Re-Os isotopic dating methods under the effect of multi-phase heating would be discussed in the transitional zone between Awati and Manjiaer depressions in the Tarim basin and the And the effects on Re-Os isotope system from oil cracking and the thermochemical sulfate reduction (TSR) would be discussed in Puguang and Yuanba gas fields. These studies will effectively promote and improve the Re-Os isotopic dating methods in the deep layer of superimposed basin.