Remotely Quantifying the Mineralogic Composition of Planetary Surfaces with Hydrated Silicates: Lessons from the Laboratory and from Mars

Physics

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Scientific paper

Vibrational absorption features related to H2O and OH in visible/near infrared (VNIR) spectroscopic data permit identification of hydrated silicate mineral phases even at small abundances. Radiative transfer modeling allows quantitative estimation of bulk mineralogy for planetary surfaces from VNIR data. Here, we discuss results from work in progress utilizing the Hapke and Shkuratov radiative transfer theories to quantitatively model mineralogy of (1) phyllosilicate-bearing particulate mixtures, measured in the laboratory and (2) Martian surfaces with phyllosilicates, using MRO/CRISM data that were atmospherically-corrected with DISORT processing. Model accuracy and uncertainties will be discussed.

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