苏北近海平原沉积物的粒度特征及其环境意义-南京师范大学学报.PDF

33 3 () Vol. 33 No. 3 2010 9 JOU RNAL OF NANJING NORM AL UN IV ERSITY ( N atu al Sc ience Edition) Sept, 2010 苏北近海平原沉积物的粒度特征及其环境意义 1 1 2 1 1 赵永杰 , 陈 晔, 徐 娟, 金爱春, 高燕云 ( 1. , 210046) ( 2. , 232007) [ ] , : , , 50~ 65 m, 40% , 10% , 5% , ; , , 5 ~ 30 m , 11% , , 70% , ; , : 434~ 395 cm ; 395~ 295 cm ; 295~ 150 cm ; 150 ~ 110 cm . [ ] , , , , [ ] P534. 63 [] A [ ] 100 14616( 20 10) Grain Size Characteristics and Their Environmental Significance ofNorthern Jiangsu CoastalPlain 1 1 2 1 1 Zhao Y ongjie , C hen Ye , Xu Juan , J in A ichun , Gao Yany un ( 1. S chool of Geog aphy Science, N anjing No m al Un ive sity, Nanjing 210046, Ch ina) ( 2. The No. 24 M idd le School of A nhu i H uainan, Hu ainan 232007, C hina) Abstract: By ho izontal compa ison fo g a in s ize cha acte istics of Sheyang beach, X inghua sha llow d illed sed mi ent, the esu lts showed that the f equency cu ve fo typical m a ine sed mi ent is sing lepeak no m a l dist ibution, wh ich m a in peak is na ow and concent ated in the 50 ~ 65 m, the con tent of sand up to 40% , c lay less than 10% , and the p ocess conten t in the cumu la tive p obab ility cu ve accoun ted fo 5% , wh ich be long ed to beach deposits; M o eove , the f equency cu ve fo typ ica l con tinenta l sed mi ent is sing le peak pa tia l negative sta le d ist ibution and b oade peak be wt een 5~ 30 m, the m ax mi um content of sand only 11% , the p ocess content in the cumu