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The Zn abundance and isotopic composition of diatom frustules, a proxy for Zn availability in ocean surface seawater

Andersen, Morten; Vance, Derek; Archer, Corey; Anderson, Robert F.; Ellwood, Michael; Allen, Claire S.


We have developed cleaning methods for extracting diatomopal from bulk marine sediment samples, for measurement of both zinc (Zn) abundance and isotope composition. This cleaning technique was then applied to a set of Holocene core-top samples from the Southern Ocean. The measured δ66Zn (reported relative to the JMCLyon standard) and Zn/Si ratios from the Southern Ocean diatomopal samples range from 0.7 to 1.5%, and from 14 to 0.9 mol/mol, respectively. The Zn abundance and isotope composition...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2010.10.032


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