Laser Raman spectroscopic determination of mineral proportions in rocks on planetary surfaces

Physics

Scientific paper

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Laser Spectroscopy, Raman Spectroscopy, Minerals, Rocks, Planetary Surfaces, Regolith, Lunar Soil

Scientific paper

With a modern Raman spectrometer, the spectrum of a single spot of laser illumination on a planetary surface can be obtained in less than 2 min; both qualitative and quantitative analysis with high spatial resolution and short acquisition times are thereby obtainable. This can furnish definitive identifications of most minerals, as well as detailed characterizations of individual mineral grains from individual spectra; the value of the technique is here evaluated for the case of a 100-point analysis of a lunar rock fragment.

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