| ZOU HANYANG,YU XINGGUANG. 1985. DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY. Acta Oceanologica Sinica, (3):402－410 |
| DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY |
| DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY |
| Received:March 15, 1984 Revised:October 10, 1984 |
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| Abstract: |
| 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. |
| 中文摘要: |
| 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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