• 责任者：Liu Enfeng (State Key Laboratory of Lake Science and Environment ; Nanjing Institute of Geography and Limnology ; Chinese Academy of Sciences ; Nanjing 210008 ; China) ; Xue Bin
• 刊名：Marine Geology & Quaternary Geology
• 出版年：2009
• 卷期：29(6)
• 关键词：湖泊沉积物 ; lake sediments ; 放射性同位素 ; radioactive isotopes ; 安徽 ; Anhui Province ; 湖北 ; Hubei Province
• 页码：p.89-94
• 图表：4 illus., 1 table, 17 refs.
• 分类号：0600
• issnNo：ISSN0256-1492
• isbnNo：CN37-1117/P

The distributions of ²¹⁰Pb and ¹³⁷Cs in the core sediments of Chaohu Lake and Taibai Lake were determined. It took on typical peaks in 1963 for ¹³⁷Cs activity in the profile, and the concentration of ²¹⁰Pbex decreased exponentially along the mass depth, indicating a stable sedimentary environment. The calculated chronology according to the CIC and CRS model was discrepant with the ¹³⁷Cs age (1963 AD); denoting the influence of land-derived ²¹⁰Pb from the atmospheric deposition and its discharge from the lake. Therefore, the composite model should be optimal, i.e. different formulae were used for the chronology calculation according to the concentration of ²¹⁰Pb_ex for the upper and lower sections of the sediment cores divided by the ¹³⁷Cs peak depth.