Compositional information for the Moon: Some characteristics of current near-IR spectra (telescopic and laboratory)

Details Compositional information for the Moon: Some characteristics of current near-IR spectra (telescopic and laboratory) Compositional information for the Moon: Some characteristics of current near-IR spectra (telescopic and laboratory)

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pggp.rept..208p&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986 p 208-209 (SEE N87-23341 16-91)

Physics

Geophysics

Astronomical Spectroscopy, Infrared Spectra, Lunar Composition, Lunar Soil, Minerals, Near Infrared Radiation, Spectral Reflectance, Bandwidth, Comparison, Gabbro, Lunar Rocks, Remote Sensing, Samples

Scientific paper

For the last decade telescopic near infrared spectra have been obtained for small lunar areas. Such spectra, with the ground truth foundation from lunar samples, have been used extensively to address a multitude of problems in lunar science. Much of the near infrared spectral reflectance data from both laboratory and telescopic measurements have recently been compiled in comparable formats and an initial comparative assessment of the available data using selected spectral parameters has been made. The objective is to develop a framework for the systematics of lunar near-IR spectra in order to better interpret spectra of unknown materials in terms of useful compositional information. Each spectrum was first classified according to its general character then a variety of parameters sensitive to mineralogy and alteration products were measured for each spectrum: band width, band strength, absorption band center near 1 micron, band symmetry, continuum slope, etc. The telescopic and laboratory data sets are briefly described. The comparative analysis shows that a few well known lunar spectral properties are evident in both sets, such as the systematic variation in pyroxene composition between the highlands and the mare. However, an additional gabbroic component can be detected in many highland craters.

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