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Vanadium Isotopes

A Proxy for Ocean Oxygen Variations

Sune G. Nielsen (Woods Hole Oceanographic Institution, Massachusetts)

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Cambridge University Press
28 January 2021
Vanadium isotope ratios (51V/50V) have potential to provide information about changes in past ocean oxygen contents. In particular, V isotopes may find utility in tracing variations at non-zero oxygen concentrations because the redox couple that controls V elemental and isotopic abundances in seawater (vanadate-vanadyl) appears to operate around 10M O2. This characteristic sets V isotopes apart from many other metal isotope redox proxies that require more reducing conditions to register significant changes in their isotope budgets. The oxygen abundance sensitivity range of V isotopes suggests that this paleoproxy could be particularly useful in tracing marine oxygenation changes throughout the Phanerozoic and potentially beyond.
By:   Sune G. Nielsen (Woods Hole Oceanographic Institution Massachusetts)
Imprint:   Cambridge University Press
Country of Publication:   United Kingdom
Weight:   59g
ISBN:   9781108797948
ISBN 10:   1108797946
Series:   Elements in Geochemical Tracers in Earth System Science
Pages:   75
Publication Date:   28 January 2021
Audience:   Professional and scholarly ,  Undergraduate
Format:   Paperback
Publisher's Status:   Active

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