Mathematics – Logic
Scientific paper
Jan 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999stin...0057049m&link_type=abstract
Technical Report, Brown Univ. Providence, RI United States
Mathematics
Logic
Hyperfine Structure, Chemical Reactions, Quartz, Olivine, Scattering, Research, Clays, Planetary Mantles, Snc Meteorites, Planetary Structure, Solubility, Soils, Reflectance, Mineralogy, Mars (Planet), Iron, Heterogeneity, Erosion, Depletion, Crusts, Aluminum
Scientific paper
Over the course of this award we have: 1) Completed and published the results of a study of the effects of hyperfine particles on reflectance spectra of olivine and quartz, which included the development of scattering codes. Research has also progressed in the analysis of the effects of fine particle sizes on clay spectra. 2) Completed the analysis of the mineralogy of dark regions, showed the insitu compositions are highly correlated to the SNC meteorites, and determined that the martian mantle was depleted in aluminum prior to 2-3 GA ago; Studies of the mineralogic heterogeneity of surficial materials on Mars have also been conducted. and 3) Performed initial work on the study of the physical and chemical processes likely to form and modify duricrust. This includes assessments of erosion rates, solubility and transport of iron in soil environments, and models of pedogenic crust formation.
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