Relation of the spectroscopic reflectance of olivine to mineral chemistry and some remote sensing implications

Details Relation of the spectroscopic reflectance of olivine to mineral chemistry and some remote sensing implications Relation of the spectroscopic reflectance of olivine to mineral chemistry and some remote sensing implications

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....9211457k&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Oct. 10, 1987, p. 11457-11469. USGS-supported research.

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Crystal Structure, Olivine, Photogeology, Remote Sensing, Spectral Reflectance, Chemical Composition, High Resolution, Iron, Magnesium, Near Infrared Radiation

Scientific paper

High-resolution visible and near-IR diffuse spectral reflectance are used to systematically investigate apparent wavelength shifts as a function of mineral chemistry in the Fe/Mg olivine series from Fo(11) to Fo(91). The study also shows that trace amounts of nickel can be spectrally detected in the olivine structure. Significant compositional information can only be extracted at relatively high resolution, because the overall spectral characteristics of the olivines change only subtly as a function of the Fe/Mg ratio. This laboratory study is expected to aid in the interpretation of remotely sensed data from both terrestrial and extraterrestrial bodies. Terrestrial applications may include the recognition of ultramafic, ultrabasic, and basaltic terrains which in themselves may have mineral potential. Among extraterrestrial applications, the asteroids are obvious candidates for further examination. Some permutations of Fe-Mg-Ni relations in olivines are discussed as they apply to the interpretation of asteroid surfaces and other extraterrestrial bodies.

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