Infrared reflectance spectra (2.2–15 μm) of plagioclase feldspars

Geophysical Research Letters - Tập 18 Số 6 - Trang 1151-1154 - 1991
Douglas B. Nash1, John W. Salisbury2
1San Juan Capistrano Research Institute, San Juan Capistrano, California
2Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, Maryland

Tóm tắt

Laboratory results show that (1) the Christiansen frequency (CF) feature in mid‐infrared reflectance spectra of powders can be used to accurately distinguish plagioclase composition, and (2) the wavelength position of the CF is not affected by vitrification of the plagioclase. Although the CF position does not distinguish glass from crystalline forms of plagioclase, other features (combination‐tone, overtone, restrahlen bands) in the mid‐IR spectra of plagioclase can be used for that purpose. These results have important implications for application of thermal emission spectroscopy to mapping the surface composition of regolith‐covered planetary bodies like the Moon, Mars, and asteroids.

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Tài liệu tham khảo

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Geophysical Research Letters

Tập 18 Số 6

1151-1154

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