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Dispersal and fate of dredged materials disposed of in the Changjiang Estuary determined by use of an in situ rare earth element tracer |
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| Authors: | Gao-feng Liu Hua-lin Wu Wen-hua Guo Jian-rong Zhu Lian-cheng Sun |
| Institution: | LIU Gao-feng a,b,1,WU Hua-lin a,GUO Wen-hua a,ZHU Jian-rong b and SUN Lian-cheng c a Shanghai Estuarine and Coastal Science Research Center,Shanghai 201201,China b State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062,China cTianjin Research Institute of Water Transport Engineering,Tianjin 300456,China |
| Abstract: | To investigate the dispersal pattern and the fate of dredged materials disposed at a pre-selected disposal site, a field tracer experiment was conducted in the North Passage of the Changjiang Estuary during the 2005 flood season. Three tons of dredged materials were mixed with 2.792 kg of sodium hexachloroiridate (IV) hexahydrate (SHH), which contained the rare earth element tracer iridum (Ir). Sampling was conducted at pre-selected sections of the estuary on the second, third and fourth day after the relea... |
| Keywords: | dredged material tracer sediment transport Neutron activation analysis deepwater navigation channel of the Changjiang Estuary |
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