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| 1 | 钱塘江南岸SE2孔晚第四纪以来沉积物粒度特征及环境演化显示文摘利用钱塘江南岸萧山地区SE2孔的粒度资料,分析了粒度参数、频率分布曲线和概率累积曲线的特征,并结合沉积物的岩性、沉积构造和有孔虫的分布特点,探讨了该区自晚第四纪以来的沉积环境演化。结果表明,晚第四纪以来,钱塘江南岸地区依次接受了河床相、河漫滩相、潮坪相、近岸浅海相和河口湾相5种沉积。河床相沉积物以砂砾为主,粒度参数变化较大,概率分布曲线为3段式,频率分布曲线为不对称的双峰式,主要发育块状层理,生物化石稀少。河漫滩相以细砂、粉砂级沉积物为主,频率分布曲线为单峰式,富含生物壳体碎屑和植物根茎。潮坪相沉积物表现为粉砂和黏土互层沉积,粒度参数变化频繁,频率分布曲线多为双峰式,韵律层理发育。近岸浅海相沉积物主要为淤泥质黏土,粒度参数稳定,概率分布曲线为2段式,以悬浮组分为主,频率分布曲线为单峰式,有孔虫含量丰富。河口湾相沉积物以粉砂和细砂组成的韵律性沉积为主,粒度参数富于变化,概率分布曲线为3段式,频率分布曲线为双峰式。 | 潘峰 林春明 李艳丽 张霞 周健 曲长伟 姚玉来 | 2011 | 古地理学报2011，13，2： | 18 |
| 2 | Simulation of three-dimensional cohesive sediment transport in Hangzhou Bay,China显示文摘Sediment transport in the Hangzhou Bay is extremely complicated due to its bathymetry and hydrodynamic conditions.The ECOMSED model is employed to simulate three-dimensional(3-D) cohesive sediment transport in Hangzhou Bay.Dynamical factors such as Coriolis force,tides,salinity,river discharges,and waves are considered in the model.The wave parameters,including the significant wave height,period,and direction,are calculated with the SWAN model.The Grant-Madsen model is introduced for the bed shear stress due to the combined effect of waves and currents.The formulation of bed shear stress used to calculate the sink/source terms is modified based on previous research that sufficiently validated the formulation with measurement data.The integrated model of the above-mentioned models is applied to simulate sediment transport in Hangzhou Bay.The results of the simulation agree well with field observations concerning the distribution of suspended sediment,indicating that the sediments are remarkably suspended in Hangzhou Bay under the action of waves and currents. | DU Panjun DING Pingxing HU Kelin | 2010 | Acta Oceanologica Sinica2010，29，2： | 11 |
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