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2 results

  • 7 - Mössbauer Spectroscopy

  • from Part I - Theory of Remote Compositional Analysis Techniques and Laboratory Measurements
  • Edited by Janice L. Bishop, James F. Bell III, Arizona State University, Jeffrey E. Moersch, University of Tennessee, Knoxville
  • Book:
    Remote Compositional Analysis
    Published online:
    15 November 2019
    Print publication:
    28 November 2019, pp 147-167

  • Summary

    The technique of Mössbauer spectroscopy is the gold standard for measurements of the redox state, coordination environment, and site occupancy of iron in geologic materials. Laboratory measurements typically involve measurements on 5–300 mg of powdered material. Mössbauer is also used to identify mineralogy of iron oxide phases and in some cases to constrain the distribution of Fe among mixed silicate phases in a rock. Together, these uses fill a need in the terrestrial and extraterrestrial communities for understanding Fe redox states, and by inference, oxygen fugacity, as oxygen evolves on planetary bodies. This chapter provides a background for understanding the Mössbauer effect and interpretation of its hyperfine parameters.