1. College of Earth Sciences��Jilin University��Changchun 130061��China; 2. Key Laboratory Oil Shale and Coexisting Minerals of Jilin Province��Changchun 130061��China; 3. Key Laboratory for Mineralization��Exploration and Exploitation of Oil Shale and Paragenetic Energy Minerals�� Changchun 130061��China

Oil shale layers found in Fuyu- -Changchunling area are popularly developed in the Upper Creta- ceous Qingshankou Formation of Songliao Basin�� Most of them present brown and dark grey color with the develop- ment of horizontal bedding and massive bedding��which indicates their semi- deep to deep lake sedimentary environ- ment�� Systemic test and analysis results show that oil shale layers here have the charactertics of moderate calorific value��high ash content and low sulfur content with medium oil yields�� The TOC content is 4. 87% to 19. 90% with the average value of 7. 88%��which reflects the high organic matter content in the oil shale�� The rock- eval analysis results show that the oil shale layers are mainly dominated by type I organic matter�� and type II organic matter dom- inated secondly�� The T max value of 437�� to 449�� indicates the immature to low- mature stage of the organic matter in oil shale�� The distribution of thickness and oil yield of oil shale layers indicate that the 2nd and 3rd oil shale lay- ers of the target strata both have the maximum thickness and the best continuity�� Besides��the oil shale layers in boreholes ZK0809 and ZK3201 both have the relatively higher total thickness��while in the borehole SY9��the oil shale layers have the highest oil yield��