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High spectral resolution reflectance spectroscopy of mineralsThe 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.
Document ID
19900059072
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Clark, Roger N.
(Geological Survey Denver, CO, United States)
King, Trude V. V.
(Geological Survey Denver, CO, United States)
Klejwa, Matthew
(Geological Survey Denver, CO, United States)
Swayze, Gregg A.
(U.S. Geological Survey Denver, CO, United States)
Vergo, Norma
(U.S. Geological Survey Reston, VA, United States)
Date Acquired
August 14, 2013
Publication Date
August 10, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
90A46127
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-15805
Distribution Limits
Public
Copyright
Other

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