Mössbauer Spectroscopy with a High Velocity Resolution Applied to the Study of Iron-Bearing Phases in Meteorites

The results of our studies of iron-bearing phases in various meteorites using Mössbauer spectroscopy with a high velocity resolution were briefly reviewed. Examples of obtained Mössbauer spectra of meteorites and their fitting were considered and demonstrated advantages of this technique for revealing spectral components related to various iron-bearing phases that could not be observed in the spectra recorded by conventional Mössbauer spectroscopy. It was shown that the obtained results can be used for the phase identification, phase analysis, estimation of variations in the local microenvironment and parameters of 57Fe hyperfine interactions, determination of cation ordering in silicate crystals, and calculation of the temperatures of equilibrium cation distribution as well as for the systematization of ordinary chondrites.