Establishment of 1D Quantitative Theoretical Model of Baselevel Cycle of Sinusoidal Curve Stratigraphy

Key words: 
• sinetype curve /
• baselevel cycle /
• quantitative model /
• stratigraphic pattern /
• hydrodynamic condition

Abstract: This article established the 1D quantitative theoretical model of base level cycle of sinusoidal curve stratigraphy from the view of fluvial hydrodynamics on the basic of summarizing the notion of base level. The modeling simulated the change of strata surface and sediment of strata, erosion and hungry deposition .the stratigraphic is established and recovered. All the simulation made by modeling the basic data such as sediment velocity，curve shape of base level cycle，curve of sediment supply velocity，average radius and density of silt, etc. Analysis the modeling according the given parameter, discussed the different stratigraphic pattern which generate when baselevel intersect with strata surface. At last, according the contrast the three types of steady strata when the strata surface higher，lower，equal the base level , we can conclude that the balance broken because of the strata surface declined mutation.