Key Problems and Research Trend of Diagenetic Geodynamic Mechanism and SpatioTemporal Distribution in Sedimentary Basins

Key words: 
• diagenesis

Abstract: A systematic study on the physicalchemicalbiological processes of diagenesis has become an international academic hot spot. However, with the strengthening awareness about the importance of diagenesis in sedimentary basin, especially in fossil energy basin, it request more and more precise definition of the spatiotemporal attributes. In view of basin geodynamics evolution, this paper propose an ideas for spatiotemporal distribution research of diagenesis based on sedimentary sequence (rockmineralchemical system configuration), burial evolusion, structural strain pattern and fluid flow frameworks. We also discuss some key problems and research trend of diagenetic geodynamic mechanism and spatiotemporal distribution, such as the effect of surface temperature change on burial diagenesis, later diagenetic modification controlled by sedimentary lithofacies and their mineralchemical system, fault facies, deformation bands and their influences on cracks or strong compaction of clastic reservoir, coupling mechanism between structure strain and fluid flow and the fluidrock interaction effects, etc.