Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 148: Issue 1
AB initio derivation of formulations for210Pb dating of sediments
Authors:
S. Joshi Canada Centre for Inland Waters, Environment Canada Lakes Research Branch, National Water Research Institute P.O. Box 5050 L7R 4A6 Burlington Ontario (Canada)

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and
B. Shukla University of Toronto Department of Chemistry M5S 1A1 Toronto Ontario (Canada)

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Pages:
73–79
Online Publication Date:
14 Aug 2005
Publication Date:
17 Mar 1991
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02060548
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Abstract  

Basic formulations used in the sedimentary210Pb dating technique are derived from fundamental considerations. The formulations are applicable to models that assume either a constant rate of supply (CRS) of unsupported210Pb to the sediments or a constant initial concentration (CIC) of this210Pb in the sediments. A previously proposed expression linking age discrepancy to mass sedimentation rates afforded by the two models is found to be inadequate in explaining the observed discrepancy between the CIC and CRS ages of segments of an undisturbed sediment core. It is noted that this age discrepancy is attributable to the mathematical treatment of data in the two models. A new expression, relating age discrepancy to the fluxes of unsupported210Pb obtainable by the two models, is derived and found to give more accurate and consistent results.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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