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Sedimentation Rates and Characteristics of Radionuclide 210Pb at the Subaqueous Delta in Changjiang Estuary
Author(s): 
Pages: 704-713
Year: Issue:  4
Journal: Acta Sedimentologica Sinica

Abstract: 通过对长江水下三角洲采集的十个沉积物柱状样中的放射性核素210Pb分析得知,长江水下三角洲表层210Pb放射性比度在2.15~4.22 dpm·g-1之间,210Pb沉降通量在1.50~11.21 dpm·cm-2 yr-1之间,过剩210Pb总量在>48.29~>361.68 dpm·cm-2之间;210Pb沉降通量以及过剩210Pb总量均高于理论值,这表明在沉积物中存在210Pb的净输入和聚集...
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