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Series:   Elements in Geochemical Tracers in Earth System Science

Earth History of Oxygen and the iprOxy

Published online by Cambridge University Press:  11 September 2020

Zunli Lu ,
Wanyi Lu ,
Rosalind E. M. Rickaby  and
Ellen Thomas
Zunli Lu
Affiliation:
Syracuse University, New York
Wanyi Lu
Affiliation:
Syracuse University, New York
Rosalind E. M. Rickaby
Affiliation:
University of Oxford
Ellen Thomas
Affiliation:
Yale University and Wesleyan University

Summary

How oxygen levels in Earth's atmosphere and oceans evolved has always been a central question in Earth System Science. Researchers have developed numerous tracers to tackle this question, utilizing geochemical characteristics of different elements. Iodine incorporated in calcium carbonate (including biogenic) minerals, reported as I/Ca, is a proxy for dissolved oxygen in seawater. Here we review the rationale behind this proxy, its recent applications and some potential future research directions.
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Keywords

upper oceanI/Cadeoxygenationcarbonatehypoxic
Type
Element
Information
Series: Elements in Geochemical Tracers in Earth System Science
Online ISBN: 9781108688604
Publisher: Cambridge University Press
Print publication: 08 October 2020

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