对我国东部地区早第三纪是否发生过海侵的争论已经持续２０ 余年。随着研究的深入，人们不断对海相指相化石（ 有孔虫、沟鞭藻、钙质超微化石等） 、特殊的指相矿物（ 海绿石、膏盐） 和地球化学特征（ 微量元素、稳定同位素） 的海相指相意义提出怀疑。对我国西部地区晚新生代盐湖沉积的研究说明，上述指标只能反映水体盐度，东部早第三纪含油盆地没有经历海侵，其生油岩应为内陆咸化湖泊沉积。 The debate over whether transgressions occurred in the early Tertiary in eastern China has lasted for more than 20 years. With the deepening of research, there are many reports on marine facies facies fossils (foraminifera, dinoflagellates, calcareous superfossils, etc.), special finger minerals (glauconite, gypsum salt) and geochemical characteristics Elements, stable isotopes) of the marine phase that the meaning of doubt. The study of late-Cenozoic salt lake sediments in western China shows that the above indexes only reflect the salinity of the water bodies. The early Tertiary oil-bearing basins in the eastern part of the basin did not undergo transgression. The source rocks should be inland salinized lakes.