Remote sensing of potential lunar resources 2. High spatial resolution mapping of spectral reflectance ratios and implications for nearside mare TiO2 content

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Abstract

High spatial resolution maps illustrating variations in spectral reflectance 400/560 nm ratio values have been generated for four mare regions. We have also obtained 320-1000 nm reflectance spectra of several sites relative to MS-2 to facilitate scaling of the images and provide additional information on surface composition. Inferred TiO2 abundances for these mare regions have been determined using an empirical calibration. Mare areas with high TiO2 abundances are probably rich in ilmenite (FeTiO3) a potential lunar resource. The highest potential TiO2 concentrations identified in the nearside maria occur in central Mare Tranquillitatis. Inferred TiO2 contents for these areas are >9 wt% and are spatially consistent with the highest-TiO2 regions mapped previously at lower spatial resolution. -from Authors

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Melendrez, D. E., Johnson, J. R., Larson, S. M., & Singer, R. B. (1994). Remote sensing of potential lunar resources 2. High spatial resolution mapping of spectral reflectance ratios and implications for nearside mare TiO2 content. Journal of Geophysical Research, 99(E3), 5601–5619. https://doi.org/10.1029/93JE03430

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