Reconstructing seawater column Sr-90 based upon Pb-210/Ra-226 disequilibrium dating of mollusk shells SCIE SCOPUS

Cited 8 time in WEB OF SCIENCE Cited 9 time in Scopus
Title
Reconstructing seawater column Sr-90 based upon Pb-210/Ra-226 disequilibrium dating of mollusk shells
Author(s)
Baskaran, M; Hong, GH; Kim, SH; Wardle, WJ
KIOST Author(s)
Kim, Suk Hyun(김석현)
Publication Year
2005-10
Abstract
The shells of marine and fresh water mollusks can serve as effective archives in retrieving information on natural and anthropogenic environmental changes. The advantage of using bivalves is that they integrate water chemistry changes into their shells during their life span. Retrospective study of environmental changes and pollutants using bivalve shells requires precise determination of the time of incorporation into the abiotic environmental matrix (here after age) of the specimen. For the first time, a set of archived bivalve samples (for which date of the death/collection is known) has been analyzed to establish the ages of mollusk shells using the Pb-210/Ra-226 Ra disequilibrium method. In addition, Sr and Sr-90 were analysed. The ages obtained using the Pb-210/Ra-226 disequilibrium dating method agrees well with the calendar years calculated from the date of death/collection. The ages obtained can be utilized to reconstruct the 90Sr levels in the water column at sites where the mollusk shells were collected. (c) 2005 Elsevier Ltd. All rights reserved.
ISSN
0883-2927
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5022
DOI
10.1016/j.apgeochem.2005.05.001
Bibliographic Citation
APPLIED GEOCHEMISTRY, v.20, no.10, pp.1965 - 1973, 2005
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
IONIZATION MASS-SPECTROMETRY; AGE-DETERMINATION; MYTILUS-EDULIS; EXCESS PB-210; PACIFIC-OCEAN; GROWTH-RATE; SEA; ISOTOPES; RADIONUCLIDES; CS-137
Keywords
bivalves; Pb-210-dating; Pb-210/Ra-226 disequilibrium; Sr-90 in seawater
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
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