an">^{weight: bold" lang=EN-US>210}weight: bold" lang=EN-US>Pb Characteristic in the Sediment Cores from the Pearl River Mouth and Its Environmental Implicationang=EN-US>

• 责任者：Liu Zhiyong (Key Laboratory of Coastal and Island Development ; Ministry of Education ; Nanjing University ; Nanjing 210093 ; China) ; Pan Shaoming
• 刊名：Acta Sedimentologica Sinica
• 出版年：2010
• 卷期：28(1)
• 关键词：河流沉积物 ; stream sediments ; 铅—210 ; Pb-210 ; 珠江口 ; Zhujiang River Mouth
• 页码：p.166-175
• 图表：8 illus., 5 tables, 35 refs.
• 分类号：1400
• issnNo：ISSN1000-0550
• isbnNo：CN62-1038/P

an">ang=EN-US>Based on the principle of ^{weight: bold" lang=EN-US>210}weight: bold" lang=EN-US>Pbang=EN-US> excess decaying and the characteristics of modern ^{weight: bold" lang=EN-US>210}weight: bold" lang=EN-US>Pbang=EN-US> sediment profiles of 14 sediment cores from the Pearl River mouth and its adjacent areas, a Fourier series based model for counting variation sediment rates was built. Sediment series were analyzed at the Pearl River mouth within 50 sediment years. The ^{weight: bold" lang=EN-US>210}weight: bold" lang=EN-US>Pbang=EN-US> ang=EN-US>of each sediment cores was calculated in the model for counting variation sedimentation rates and gained more specific data of the sedimentation process. Sedimentation rates, dating results and those relations between the sedimentary environmental at the same time were analyzed. The result shows that sedimentation rates are distinct from each other greatly at different stations.