Grain Size Characteristics And Geochemical Analysis Of Subsurface Sediments In Panjin Harbor

The geographical coordinates of Rongxing Port in Panjin Port are 121°57?35??E and 40°42?36??N.It is located in the northeastern part of Liaodong Bay and is in the sea area on the east side of Hazigangzi Beach,between the Liaohekou and the Daliao Estuary..Panjin Port is located in Panjin City,Liaoning Province.This area deposits a large amount of terrestrial debris carried by the Liaohe River.This paper will discuss the material source and sedimentary environment in this area through analysis of sediment grain size characteristics and geochemical elements.1.The particle size of the sample was detected by Beckman Kurt laser particle size analyzer,and the particle size parameters were calculated.The results showed that the types of sediment in Panjin port were mainly silt and sand,and the average particle size of the samples was between 3.19 and 5.46?.Sorting is poor-very poor.The sample skewness is normal-polar positive.The kurtosis is flat-sharp.The Weibull function was used to calculate the number and percentage of the two components of the sample.The particle size diagram shows that the initial water kinetic energy of the sample is generally larger,but the average water kinetic energy is different.Explanation:The source distance of the sedimentary area is relatively close,and the material source is relatively stable.It is dominated by terrestrial sediments.The deposition is mainly controlled by the Liaohe River and the Daliao River.Under the background of river sedimentation,the depositional environment in the northeastern part of the study area is affected by The impact of the trend is relatively large,while the Midwest is greatly affected by erosion.2.The concentration of elements in the samples was measured by the element geochemistry test instrument of X fluorescence spectrometer.The results showed that the contents of SiO₂,Al₂O₃,Fe₂O₃,K₂O,MgO and TiO₂ in the sediments of Panjin Port are close to those of the landslide,while CaO,MgO and Na₂O show a great degree of leaching loss.P,Sr,Ba are relatively leached,and Mn,Zr,Rb,Cr,Cu,and Ni are all enriched to some extent.By comparing the trace element content with several standard values??such as UCC,PAAS,etc.?and other areas,and analyzing the geochemical parameters of the sediment,the results show that during the formation of surface sediments in Panjin Port,Liaohe,The Liaohe River Basin has a cold and arid climate,and aquatic organisms are not active.Liaohe and Daliao Rivers provide major source for the study area,but the Liaohe River contributes more to the formation of sediments;artificial participation in the formation of sediments in this area.Has a great influence.