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Thermal emission measurements 2000-400/cm (5-25 micrometers) of Hawaiian palagonitic soils and their implications for MarsThe thermal emision of two palagonitic soils, common visible and near infrared spectral analogs for bright soils on Mars, was measured over the wavelength range of 5 to 25 micrometers (2000 to 400/cm) for several partical size separates. All spectra exhibit emissivity features due to vibrations associated with H2O and SiO. The maximum variability of emissivity is approximately 20% in the short wavelength region (5 to 6.5 mirometers, 2000 to 1500/cm), and is more subdued, less than 4%, at longer wavelengths. The strengths of features present in the infrared spectra of Mars cannot be solely provided by emissivity variations of palagonite; some other material or mechanism must provide additional absorptions(s).
Document ID
19950051179
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Roush, Ted L.
(San Fracisco State University San Francisco, CA, United States)
Bell, James F., III
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
March 25, 1995
Publication Information
Publication: Journal of Geophysical Research
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
95A82778
Funding Number(s)
PROJECT: RTOP 151-01-60-01
Distribution Limits
Public
Copyright
Other

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