Sedimentary Characteristics And Simulation Of Deposition Process Of The Muddy Delta

Damoguaihe Formation of the study area is located in the Hailar basin which is located in the southwest direction of Hulun Buir,the Inner Mongolia Autonomous Region,China.It can be seen that the area is very extensive,spanning the large and small Xingan ridge area.Although there is a typical three layer structure of Gilbert type delta in Damoguaihe Formation,the internal mud content is obviously larger than that of the Gilbert type delta.In this paper we establishing the stratigraphic sequence of the Damoguaihe Formation in the study area with collecting the geological data such as outcrop,core,log and earthquake,the paper studies the sequence stratigraphy of the Damoguaihe Formation in Hailar basin,the analysis of the outcrop sequence stratigraphy of the muddy Delta,the arrangement of the existing drilling data.At the same time,the sedimentary characteristics of the muddy Delta in the Damoguaihe Formation are summarized.Sedimentary simulation technology is of great significance in the history of earth science.In the field of field production and practice,most of the main objects of our contact and study are sedimentary rocks that have been retained after a long period of geological action.The process of explaining the various sedimentary processes is mostly by backstepping,and many of the information reflecting the process of deposition can not be restored.Therefore,the sedimentary simulation technology is an important way to study earth science.However,with the rapid development of computer technology,computer based deposition numerical simulation is becoming more mature as another simulation technology.The sedimentary process of the muddy delta of the Damoguaihe Formation in the Beier-Wuerxun depression is simulated by numerical simulation.Control the single variable,compare the simulation results,find out the differences between them,so as to explore the main controlling factors of the muddy Delta.Fine particles play an important role in the formation of muddy delta.The higher the sediment source content is,the more developed the delta precursor is,and the more extensive the precursor is.Sediments from muddy delta are often very low in granularity,which will lead to the muddy delta.It can be seen that the particle size of the provenance is an important factor controlling the formation of the muddy delta.