高邮凹陷邵伯次凹戴南组沉积演化

Based on the guidance of high resolution sequence stratigraphy theory, combining geological background of Shaobo sub-depression, and using comprehensively the core, well logging, seismic and paleontology data， we had classified the sequence stratigraphic of Dainan formation and then analyzed its sedimentary system systematically on the basis of the classification. We recognized that fan delta, nearshore subaqueous alluvial fan, sublacustrine fan and lakes sedimentary systems developed in this geological region, and had detailedly explained the characteristics of sedimentary facies, the microfacies , the sedimentary evolution. For the more, we establishied the sedimentary facies models of Dainan formation, which can provid sufficient geological evidence for the future oil and gas exploration in this region.