DETERMINATION OF <sup>210</sup>Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY

ZOU HANYANG; YU XINGGUANG

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ZOU HANYANG, YU XINGGUANG. DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY[J]. Acta Oceanologica Sinica, 1985, (3): 402-410.

Citation:

ZOU HANYANG, YU XINGGUANG. DETERMINATION OF ²¹⁰Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY[J]. Acta Oceanologica Sinica, 1985, (3): 402-410.

ZOU HANYANG, YU XINGGUANG. DETERMINATION OF 210Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY[J]. Acta Oceanologica Sinica, 1985, (3): 402-410.

Citation:

ZOU HANYANG, YU XINGGUANG. DETERMINATION OF ²¹⁰Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY[J]. Acta Oceanologica Sinica, 1985, (3): 402-410.

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DETERMINATION OF ²¹⁰Pb IN MARINE SEDIMENTS AND ITS APPLICATION TO GEOCHRONOLOGY

Third Institute of Oceanography, National Bureau of Oceanography, Xiamen

Received Date: 1984-03-15
Rev Recd Date: 1984-10-10

Abstract

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.