Abstract: The age of clastic sedimentary rock of the Tertiary Guantao formation to Kongdian formation in the Jiyang sag was determined by using the method of fission track and compared with those ages determined by palaeo-geomagnetic polarity and K-Ar isotope,the results were almost the same.With these data,the sedimentation rate of the layer of the second member of the Dongying formation to the middle of the third member of the Shahejie formation in Well 2-2-18 was calculated,and a new view of the age of the bottom congleremetare in the Guantao formation in this ares was proposed.This achievement provided a new approach to stratigraphic classification and correlation of sedimentary layer,to the research in the formation of oil and gas field and to the quantitative analysis of the hydrocarbon generation from source rock.

摘要： 利用裂变径迹法测定了济阳坳陷第三系馆陶组至孔店组碎屑沉积岩的年龄,并将所测年龄与古地磁极性年龄、K-Ar法同位素年龄相对比,三者基本一致.利用这些测定数据,计算了2-2-18井东营组第二段至沙河街组第三段中部地层的沉积速率,对本区馆陶组底碑岩时代归疆问题,提出了新的认识.该成果为沉积地层划分、对比、油气藏形成机理的研究和生油岩埋藏成烃定量分析等提供了一个新途径.

关键词: 济阳坳陷, 裂变径迹, 沉积速率, 馆陶组, 砾岩