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Metal silicate mixtures - Spectral properties and applications to asteroid taxonomyThe reflectance spectra of combinations of olivine, orthopyroxene, and iron meteorite metal are experimentally studied, and the obtained variations in spectral properties are used to constrain the physical and chemical properties of the assemblages. The presence of metal most noticeably affects band area ratios, peak-to-peak and peak-to-minimum reflectance ratios, and band widths. Band width and band areas are useful for determining metal abundance in olivine and metal and orthopyroxene and metal assemblages, respectively. Mafic silicate grain size variations are best determined using band depth criteria. Band centers are most useful for determining mafic silicate composition. An application of these parameters to the S-class asteroid Flora is presented.
Document ID
19900052851
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cloutis, Edward A.
(Alberta Univ. Edmonton Alberta, Canada)
Smith, Dorian G. W.
(Alberta Univ. Edmonton Alberta, Canada)
Lambert, Richard St. J.
(Alberta, University Edmonton, Canada)
Gaffey, Michael J.
(Rensselaer Polytechnic Institute, Troy, NY, United States)
Date Acquired
August 14, 2013
Publication Date
June 10, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Inorganic And Physical Chemistry
Accession Number
90A39906
Funding Number(s)
CONTRACT_GRANT: NAGW-642
Distribution Limits
Public
Copyright
Other

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