东营凹陷下第三系ESR测年研究

Researches on the ESR geochronometry in Palaeogene of Dongying depression.

运用ESR方法 ,对东营凹陷下第三系孔店组至东营组 (早始新世—渐新世 )作了石英ESR测年研究。建立了ESR线性回归方程和测年序列 ;给出了中—下始新统、上—下渐新统等几条重要界线年龄 ;分析了物源和退火对ESR测年的影响 ;

The quartz ESR geochronometry is applied to Palaeogene of Dongying depression from Kongdian formation to Dongying formation (early Eocene to Oligocene). The equation of ESR linear regression and the sequence of geochronometry are built; several important boundary ages of middlelower Eocene, upperlower Oligocene and so on are given; the influence of sedimentary source and annealing phenomenon on ESR geochronometry is analyzed; the model of ESR geochronometry is improved.