Vanadium Isotopes

A Proxy for Ocean Oxygen Variations

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

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English

Cambridge University Press
28 January 2021

Biochemistry; Geochemistry; Oceanography (seas); Meteorology & climatology; Environmental monitoring

Series: Elements in Geochemical Tracers in Earth System Science

Summary
Details

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
Dimensions: Height: 150mm, Width: 230mm, Spine: 4mm
Weight: 670g
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