The Redox Behavior of Rare Earth Elements

Chapter 19 The Redox Behavior of Rare Earth Elements Maria Rita Cicconi, Maria Rita Cicconi Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany Université de Paris, Institut de Physique du Globe de Paris, Paris, FranceSearch for more papers by this authorCharles Le Losq, Charles Le Losq Université de Paris, Institut de Physique du Globe de Paris, Paris, France Research School of Earth Sciences, Australian National University, Canberra, ACT, AustraliaSearch for more papers by this authorGrant S. Henderson, Grant S. Henderson Department of Earth Sciences, University of Toronto, Toronto, CanadaSearch for more papers by this authorDaniel R. Neuville, Daniel R. Neuville Université de Paris, Institut de Physique du Globe de Paris, Paris, FranceSearch for more papers by this author Maria Rita Cicconi, Maria Rita Cicconi Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany Université de Paris, Institut de Physique du Globe de Paris, Paris, FranceSearch for more papers by this authorCharles Le Losq, Charles Le Losq Université de Paris, Institut de Physique du Globe de Paris, Paris, France Research School of Earth Sciences, Australian National University, Canberra, ACT, AustraliaSearch for more papers by this authorGrant S. Henderson, Grant S. Henderson Department of Earth Sciences, University of Toronto, Toronto, CanadaSearch for more papers by this authorDaniel R. Neuville, Daniel R. Neuville Université de Paris, Institut de Physique du Globe de Paris, Paris, FranceSearch for more papers by this author Book Editor(s):Roberto Moretti, Roberto MorettiSearch for more papers by this authorDaniel R. Neuville, Daniel R. NeuvilleSearch for more papers by this author First published: 17 September 2021 https://doi.org/10.1002/9781119473206.ch19Book Series:Geophysical Monograph Series AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Summary Elements in the lanthanides series are usually known under the name of rare earth elements (REE). In past decades, the use of these elements in industrial processes has increased exponentially with the development of novel technologies and applications. In addition to such growing industrial importance, and despite their relatively low concentrations in the Earth system, REE are sensitive markers of crystal-melt equilibria in geological systems. As a result, the study of lanthanides in materials, either as whole group or as single species, has become an important point of focus in both Geo- and Materials Sciences. Among REE, Ce and Eu are stable in many geological environments, with two different oxidation states (Ce 3+ /Ce 4+ and Eu 2+ /Eu 3+ ), hence, these two redox couples have been proposed as proxies for oxygen fugacity ( f O 2 ) in different environments (oxybarometer). However, it is essential to understand the factors influencing redox mechanisms in order to use Ce/Eu distribution as f O 2 sensors. In this chapter, we present an overview of REE properties in minerals, melts, and glasses, and illustrate their importance through examples of applications in the fields of geochemistry, petrology, and mineralogy. Magma Redox Geochemistry RelatedInformation