Spectral characterization of Martian soil analogues

Details Spectral characterization of Martian soil analogues Spectral characterization of Martian soil analogues

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987asee....1.....a&link_type=abstract

In NASA. Lyndon B. Johnson Space Center, National Aeronautics and Space Administration (NASA)/American Society for Engineering E

Computer Science

Chemical Composition, Iron Oxides, Mars Surface, Particle Size Distribution, Soils, Spectral Reflectance, Amorphous Materials, Magnetic Permeability, Mossbauer Effect, Optical Properties, Silica Gel

Scientific paper

As previously reported, reflectance spectra of iron oxide precipitated as ultrafine particles, unlike ordinary fine grained hematite, have significant similarities to reflectance spectra from the bright regions of Mars. These particles were characterized according to composition, magnetic properties, and particle size distribution. Mossbauer, magnetic susceptibility, and optical data were obtained for samples with a range of concentrations of iron oxide in silica gel of varying pore diameters. To analyze the Mossbauer spectra, a versatile fitting program was enhanced to provide user friendly screen input and theoretical models appropriate for the superparamagnetic spectra obtained.

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