Computer Science
Scientific paper
Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...96..219o&link_type=abstract
Icarus (ISSN 0019-1035), vol. 96, no. 2, April 1992, p. 219-225.
Computer Science
22
Clays, Infrared Spectroscopy, Mars Surface, Planetary Composition, Remote Sensing, Spectral Reflectance, Crystallinity, Iron, Montmorillonite
Scientific paper
The diffuse reflectance spectra of Hawaiian palagonite mixtures with an Fe-rich montmorillonite have prompted their present use as spectral analogs of the Martian surface. Like the Mars spectrum and unlike clays, the 2.2-micron reflectance spectrum absorption band is not present in the palagonite sample; neither is the 2.2-micron Al-OH clay lattice band seen in palagonite-montmorillonite mixtures, where the latter component remains below 15 wt pct. Fe-rich montmorillonite clay may therefore be present in Mars, in combination with palagonite, while remaining undetected in remotely sensed spectra.
Handy Jonathan
Orenberg James
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