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根据１９８２－１９９５年在浙江沿岸椒江口、杭州湾、象山县大目涂取得的沉积柱样层序 数据系列和重复沉积界面测量序列，利用分形理论进行沉积过程及冲淤幅度的分析。沉积过 程和沉积地层层序存在自相似结构，两者之间在无特征尺度区存在着初始值以及分数维的传 递。椒江河口和杭州湾南侧潮汐通道边坡沉积柱样泥层厚度的分数维在１．２－１．５之间。按潮 汐沉积基本单元形成时间为大小湖周期计算，沉积过程１年重现期的高程均方变幅为３－ ２８ｃｍ，１０年重现期为１０－１６７ｃｍ，５０年重现期为２１－５７５ｃｍ。分形特征是了解沉积地层序 列、分析沉积界面波动过程极值分布规律的途径之一。
According to the sequences of sedimentary sequence data and repeated sedimentary interface acquired from 1982 to 1995 in Jiaojiang River, Hangzhou Bay, and Xiangshan, along the coasts of Zhejiang Province, the sedimentary process and the analysis of the sedimentation and deposition margin are carried out by using the fractal theory. There is a self-similar structure between the depositional process and the sequence of sedimentary strata. There is initial value and fractal dimension transmission between the two in the non-characteristic scale area. The fractal dimension of sedimentary column-like mud layer thickness in the Jiaojiang estuary and tidal channel slope on the south side of Hangzhou Bay is between 1.2 and 1.5. The tidal sedimentary basic unit formation time is calculated by the lacustrine cycle. During the 1-year depositional period, the mean square amplitude is 3- 28cm, the 10-year recurrence is 10-167cm, and the 50-year recurrence is 21-575cm . Fractal feature is one of the ways to understand the sequence of sedimentary strata and analyze the law of extreme value distribution of sedimentary interface fluctuation.