Remote Sensing of Titanium in Mare Balsalt Soils: Will the Real TiO2 Please Stand Up?

Details Remote Sensing of Titanium in Mare Balsalt Soils: Will the Real TiO2 Please Stand Up? Remote Sensing of Titanium in Mare Balsalt Soils: Will the Real TiO2 Please Stand Up?

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002mbns.conf...15e&link_type=abstract

The Moon Beyond 2002: Next Steps in Lunar Science and Exploration, p. 15

Other

Remote Sensing, Titanium, Lunar Surface, Lunar Resources, Spectral Reflectance, Data Processing

Scientific paper

Lunar mare basalt classification schemes have relied on titanium content as a principal classifier owing to its considerable variability in returned samples. Ti is an indicator of the mineral ilmenite, a potential lunar resource and a major player in mare basalt petrogenesis. Since lunar mare basalt samples (and associated soils) come from only a few nearside sites, it is important to determine if the sample collection accurately reflects the global distribution of titanium in mare basalts. Mare basalt soils in the sample suite suggest two fundamental populations of basalts, high-Ti and low-Ti, while global estimates based on spectral reflectance techniques reveal a continuous gradation of titanium abundance. In addition, there have been disagreements between optical and nuclear remote sensing techniques used to estimate TiO2 abundance. Recent efforts to refine spectral reflectance techniques have provided better agreement with both samples and neutron-spectrometry techniques, but there are still differences in the estimates. Here we report on new results for TiO2 obtained by the Lunar Prospector Gamma Ray Spectrometer data analysis, and compare them to estimates provided by other techniques.

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