Abstract
Mössbauer (nuclear γ-resonance) spectroscopy is a powerful technique that is actively used in various fields, from physics and chemistry to biology and medicine. Rudolf L. Mössbauer, who observed nuclear γ-resonance and published his results in 1958, received a Nobel Prize in physics in 1961 for this discovery. The 57Fe is the most widely used nucleus in Mössbauer spectroscopy. Therefore, a large variety of compounds containing iron can be studied by Mössbauer spectroscopy. It is well known that planetary matter contains various iron-bearing phases and minerals. Therefore, the extraterrestrial material from different meteorites, asteroids, and planets can be studied using 57Fe Mössbauer spectroscopy as additional powerful technique. Two parts of this review consider the results of more than 50 years of experience of Mössbauer spectroscopy applied for the studies of various meteorites, soils and rocks from the Moon and recent investigation of the Mars surface using two rovers equipped with miniaturized Mössbauer spectrometers. Part I will discuss known results on Mössbauer spectroscopy of undifferentiated meteorites, which are the most primitive and formed with the solar system.
Highlights
Mössbauer spectroscopy based on synchrotron radiation became a useful, precise, and fast instrument in the study of materials, which was applied for meteorite studies
Unequilibrated ordinary chondrites Yamato (Y) 790461 H3.7, Dhajala H3.8, Lewis Cliff (LEW) 88121 H3.4 and Uruq al Hadd (UaH) 002 H3 were studied by Mössbauer spectroscopy in [51,52,53,54], respectively
Revealing of spectral components related to the M1 and M2 sites in olivine and pyroxene was successfully done in the 512-channel Mössbauer spectrum of Miller Range (MIL) 07710 L4 ordinary chondrite found in Antarctica [86]
Summary
Mössbauer spectroscopy based on synchrotron radiation became a useful, precise, and fast instrument in the study of materials (see, e.g., [22,23]), which was applied for meteorite studies Another option of precise measurements was developed in the case of so-called Mössbauer spectroscopy with a high velocity resolution, i.e., with a higher discretization of the velocity reference signal (up to 212) than that in conventional spectrometers (up to 29) (see [24,25]). Sample preparations were described in considered papers and usually the powdered material was used (~50–150 mg)
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