Abstract: Characteristics of thermal evolution with in creasing depth of organic matter in different sedimentary basins of Meso-Cenozoicage in China are reviewed on the basis of analytical data of soluble saturated hydrocarbons, asphaltenes and insoluble kerogen etc. from source rocks. Six stages are proposed for the whole process of evolution, and the structural changes of organic matter for each stage are studied with data obtained form analysis of elements, infrared spectrum, chromatogram, chromatogram-mass spectrogram and paramagnetie resonanceetc., leading to the further inquiry of the mechanism and process of oil and gas generation.

摘要： 本文根据生油岩中可溶有机质饱和烃及其重组分——沥青质和不溶有机质干酪报等资料,深入研究了我国中、新生代不同类型沉积盆地有机质随埋深的热演化特征,在此基础上提出了有机质及原油热演化过程六个阶段的划分。通过有机元素、红外、色谱、色谱-质谱联用、顺磁等资料,研究了各热演化阶段有机质的结构组成变化,进一步探索了油气的生成机理和过程。