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针对目前用的地层剥蚀厚度恢复镜质体反射率差值法所存在问题,在考察地层沉降、抬升、再沉降埋藏史过程的基础上,根据有机质演化累积性和不可逆性原则,利用经典的有机质成熟度时温关系模型(TTI),建立了修正的镜质体反射率剥蚀厚度恢复方法。该方法不仅考虑了剥蚀界面上下镜质体反射率的相对值,还考虑了各自绝对量,与以往仅考虑镜质体反射率差值相比,有较大改进。
Aiming at the problems existing in the method of restoring the vitrinite reflectance difference by using the existing denudation thickness of strata, based on the investigation of the burial history of stratigraphic subsidence, uplift and redeposition, according to the principle of cumulative and irreversible evolution of organic matter, Maturity temporal-temperature model (TTI), a modified restoration method of vitrinite reflectance erosion thickness was established. The method takes into account not only the relative values of the reflectivity of the upper and lower vitrinites at the ablation interface, but also the respective absolute values, which are greatly improved compared with the previous ones only considering the difference of the vitrinite reflectance.