【摘要】 南堡凹陷东营组及沙河街组烃源岩的富氢显微组分随着热演化程度的增加，荧光光谱峰波长λｍａｘ值增加，红绿光相对强度比值增大，荧光强度Ｉ５４６降低，且均在埋深３４００ｍ左右出现阶段性变化。因此，可以确定南堡凹陷烃源岩的生油门限深度在３４００ｍ左右。更多还原

【Abstract】 As the thermal evolution degree of hydrogen rich macerals in source rocks of Dongying and Shahejie Formations in Nanpu Sag increases,the wave peak λ max of its fluorescence spectrum will increase,the relative intensity of red light and green light will increase and fluorescence intensity will decrease and periodic changes would occur in 3 400 m depth.It thus suggests that the oil forming threshold of Nanpu Sag is±3 400 m.更多还原