The Oxidation State of Uranium in Zircon and Other Igneous Accessory Phases from U M4-edge X-Ray Absorption Spectroscopy

Shane Kenyon Houchin, California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States, Francois Tissot, California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States, Mauricio Ibañez Mejia, University of Arizona, Tucson, United States, Matthew Newville, Center for Advanced Radiation Sources, University of Chicago, Chicago, United States, Antonio Lanzirotti, Center for Advanced Radiation Sources, University of Chicago, Chicago, IL, United States and Frank J Pavia, California Institute of Technology, Pasadena, United States