| DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY |
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| 作者姓名： | 邹汉阳 余兴光 |
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| 作者单位： | Third Institute of Oceanography，National Bureau of Oceanography，Xiamen，Third Institute of Oceanography，National Bureau of Oceanography，Xiamen |
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| 摘 要： | A method of electrodeposit-PbSO4 precipitation-β counting has been developed for the determination of 210Pb in marine sediments. The chemical yield of lead is 85-90%, coincident with radiochemical yield. The decontamination factors for 90Sr, 106Ru, 137Cs, 60Co, 65Zn, 55+59Fe and 54Mn are greater than 103. The precision is 2.9%. The typical 210Pb profiles of five cores were successfully obtained in the Changjiang Estuary and adjacent continental shelf. The sedimentation rates of the cores from five stations of G8132, G8133.G8134, G8135 and G8139 are 0.72, 0.86, 0.37, 0.33 and 0.42 cm/yr respectively.
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| 收稿时间： | 1984/3/15 0:00:00 |
| 修稿时间： | 1984/10/10 0:00:00 |
DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY |
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| ZOU HANYANG and YU XINGGUANG.DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY[J].Acta Oceanologica Sinica,1985,4(3):402-410. |
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| Authors: | ZOU HANYANG and YU XINGGUANG |
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| Institution: | Third Institute of Oceanography, National Bureau of Oceanography, Xiamen |
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| Abstract: | A procedure is suggested for direct determination of Sr in seawater using diluted seawater sample and background emission correction by FES.The standard deviation for 8 ppm Sr is better then 2%,and the recovery of the added Sr is 97-105%. |
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