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Observational evidence of crystalline iron oxides on MarsA series of new spectral observations of Mars was obtained at Mauna Kea Observatory in the 0.4-1.0-micron wavelength range during the extremely favorable 1988 opposition, which yielded new spectral reflectance and relative reflectance data for a number of distinct spots on the Martian surface at 500-600 km spatial resolution. The new spectra revealed absorptions at 0.62-0.72 micron and at 0.81-0.94 micron, both seen clearly for the first time. These absorption features are interpreted as Fe(3+) electronic transition bands that indicate the presence of crystalline ferric oxide or hydroxide minerals on the Martian surface.
Document ID
19900061723
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bell, James F., III
(Hawaii Univ. Honolulu, HI, United States)
Mccord, Thomas B.
(Hawaii Univ. Honolulu, HI, United States)
Owensby, Pamela D.
(Hawaii, University Honolulu, United States)
Date Acquired
August 14, 2013
Publication Date
August 30, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
90A48778
Funding Number(s)
CONTRACT_GRANT: NSG-7312
CONTRACT_GRANT: NSG-7323
Distribution Limits
Public
Copyright
Other

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