论文部分内容阅读
杭州湾南岸潮滩的~(210)Pb垂向分布具有随深度波动的特征。湖滩颗粒物在吸附模拟系统中的~(210)Pb分配系数,主要受颗粒物含量的影响。本文从潮滩沉积~(210)Pb初始比度在低于平衡点一侧波动的机理,以及被沉积间断所分隔的有效封闭段的存在出发,提出选择常态沉积层的高~(210)Pb比度窗口,建立以CIC模式估计潮滩沉积速率的方法。
The vertical distribution of ~ (210) Pb in the tidal flats along the south bank of Hangzhou Bay has the characteristics of fluctuating with depth. The (210) Pb partition coefficient of lake beach particles in the adsorption simulation system is mainly affected by the content of particulate matter. In this paper, from the mechanism that the initial ratio of tide beach sedimentary ~ (210) Pb fluctuates below the equilibrium point and the existence of effective closed interval separated by sedimentary discontinuities, it is proposed that the high ~ (210) Pb Ratio window, the establishment of CIC model to estimate the tidal flat deposition rate method.