Differences Observed in Iron Content between Crater Ejecta and Surrounding Mare Basalt Surfaces: Implications for Sample Remote Sensing Integration

Details Differences Observed in Iron Content between Crater Ejecta and Surrounding Mare Basalt Surfaces: Implications for Sample Remote Sensing Integration Differences Observed in Iron Content between Crater Ejecta and Surrounding Mare Basalt Surfaces: Implications for Sample Remote Sensing Integration

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998nvmi.conf...31g&link_type=abstract

Workshop on New Views of the Moon: Integrated Remotely Sensed, Geophysical, and Sample Datasets, p. 31

Mathematics

Logic

Basalt, Bedrock, Iron, Lunar Surface, Mineralogy, Lunar Craters, Lunar Maria, Ejecta, Clementine Spacecraft, Landing Sites, Remote Sensing

Scientific paper

Remote sensing techniques are utilized to extend sample data to regional and global scales. Equally important is knowledge of rock types not represented in the current sample collection. Before either of these questions can be addressed, one question must first be answered: How does remote analysis of a planet's surface relate to the uncompromised composition of bedrock? The paucity of exposed rocks on the lunar surface means that remote chemical and mineralogical analysis records direct information about the soils. In this work we examine ways to evaluate how and if the composition of the surface material is representative of the bedrock material below. Processing of Clementine images was performed using ISIS software developed by the USGS, in Flagstaff. Images were converted to absolute reflectance using photometric equations. Maps displaying the distribution of Fe were constructed using Clementine 750- and 950- nm images. The technique for calculating Fe abundance is shown to have eliminated the effects of surface brightness and albedo, thus yielding accurate Fe concentrations for the Apollo and Luna landing sites.

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