From radiometry to chronology of a marine sediment core: A 210Pb dating interlaboratory comparison exercise organised by the IAEA

TitleFrom radiometry to chronology of a marine sediment core: A 210Pb dating interlaboratory comparison exercise organised by the IAEA
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2020
AuthorsGarcia-Tenorio, R., Rozmaric M., Harms A., Godoy J.M.D.O., Barsanti Mattia, Schirone Antonio, Ruiz-Fernández A.C., Sanchez-Cabeza J.A., McGinnity P., Fujak M., Eriksson M., Hatje V., Laissaoui A., Nguyen H.Q., Okuku E., Al-Rousan S.A., Yii M.W., Heijnis H., and Osvath I.
JournalMarine Pollution Bulletin
Volume159
ISSN0025326X
Abstract

Laboratories from 14 countries (with different levels of expertise in radionuclide measurements and 210Pb dating) participated in an interlaboratory comparison exercise (ILC) related to the application of 210Pb sediment dating technique within the framework of the IAEA Coordinated Research Project. The laboratories were provided with samples from a composite sediment core and were required to provide massic activities of several radionuclides and an age versus depth model from the obtained results, using the most suitable 210Pb dating model. Massic concentrations of Zn and Cu were also determined to be used for chronology validation. The ILC results indicated good analytical performances while the dating results didn't demonstrate the same degree of competence in part due to the different experience in dating of the participant laboratories. The ILC exercise enabled evaluation of the difficulties faced by laboratories implementing 210Pb dating methods and identified some limitations in providing reliable chronologies. © 2020 Elsevier Ltd

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85088796648&doi=10.1016%2fj.marpolbul.2020.111490&partnerID=40&md5=6d44b14534f13602979350c5ffd5516d
DOI10.1016/j.marpolbul.2020.111490