High spectral resolution reflectance spectroscopy of minerals

Details High spectral resolution reflectance spectroscopy of minerals High spectral resolution reflectance spectroscopy of minerals

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9512653c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Aug. 10, 1990, p. 12653-12680. Research supported by USGS.

Physics

128

Fine Structure, Minerals, Planetary Surfaces, Spectral Reflectance, Spectral Resolution, Absorption Spectra, Chemical Composition, High Resolution, Spectral Bands

Scientific paper

The reflectance spectra of minerals are studied as a function of spectral resolution in the range from 0.2 to 3.0 microns. Selected absorption bands were studied at resolving powers as high as 2240. At resolving powers of approximately 1000, many OH-bearing minerals show diagnostic sharp absorptions at the resolution limit. At low resolution, some minerals may not be distinguishable, but as the resolution is increased, most can be easily identified. As the resolution is increased, many minerals show fine structure, particularly in the OH-stretching overtone region near 1.4 micron. The fine structure can enhance the ability to discriminate between minerals, and in some cases the fine structure can be used to determine elemental composition.

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