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- W2367745219 abstract "The vertical profile of 210Pb in the sediment of the Chukchi Sea was determined by Pb-Po isotopic technique.By using a two-layer model to study the distribution of 210Pb,the sedimentary rate(S),accumulation flux of sediment(FM) and sedimentary flux of excess 210Pbex were estimated to be 0.145cm/a,78mg/(cm2·a) and 6×10-3Bq/(cm2·a) [0.36dpm/(cm2·a)],respectively.The changes in heavy metals(Cu,Pb,Zn,Cd,Cr,Co,Fe,Mn and V) contents in 12 layers of the sedimentary core were analyzed and determined by instrumental neutron activation analysis(INAA) and flame atomic absorption method.It was found that the concentrations of the heavy metals in varied layers had no significant difference.Comparing the results with those of other Arctic shelf regions and the main value of the shale,the content of the heavy metals is lower.It was concluded that the source of heavy metals in the sediment of the Chukchi Sea was from natural geochemical process and no significant anthropogenic contribution was detected in the Chukchi Sea sediments." @default.
- W2367745219 created "2016-06-24" @default.
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- W2367745219 date "2008-01-01" @default.
- W2367745219 modified "2023-09-22" @default.
- W2367745219 title "History of heavy metals recorded in the sediment of the Chukchi Sea,Arctic" @default.
- W2367745219 hasPublicationYear "2008" @default.
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