Reflectance spectra of mafic silicate-opaque assemblages with applications to meteorite spectra

Details Reflectance spectra of mafic silicate-opaque assemblages with applications to meteorite spectra Reflectance spectra of mafic silicate-opaque assemblages with applications to meteorite spectra

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...84..315c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 84, April 1990, p. 315-333. Research supported by the University of Alberta.

Astronomy and Astrophysics

Astronomy

38

Astronomical Spectroscopy, Chemical Analysis, Meteorites, Reflectance, Silicates, Abundance, Carbon Monoxide, Fine Structure, Magnetite, Olivine, Spectral Bands, Meteorites, Spectra, Reflectance, Silicate, Opacity, Mineralogy, Composition, Comparisons, Spectroscopy, Remote Sensing, Procedure, Analogs, Laboratory Studies, Magnetite, Carbon, Ureilites, S Asteroids, Stony Meteorites, Achondrites, Chondrites, Ordinary Chondrites, C Chondrites, Carbonaceous Chondrites, Co3 Chondrites, Cv3 Chondrites, Optical Pro

Scientific paper

The addition of fine-grained magnetite to mafic silicate spectra can impart not only an overall blue slope, but also lower overall reflectance and band intensities. The reflectance spectra of the CO and CV magnetite-bearing carbonaceous chondrites are noted to exhibit many of these features; the low band depths of these meteorites suggest that an additional dark, neutral phase, such as ordered carbon, is present. Carbon + mafic silicate spectra possess a red overall slope at low amorphous carbon concentrations. The parent bodies of some of the darkest meteorites should exhibit spectral features attributable to mafic silicates.

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