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    Revisiting spectral parameters of silicate-bearing meteorites

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    Author
    Duffard, R.
    Lazzaro, D.
    De León, Len, J.
    Issue Date
    2005-01-01
    Keywords
    basaltic achondrites
    Spectral parameters
    Spectral reflectance
    
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    Citation
    Duffard, R., Lazzaro, D., & De León, J. (2005). Revisiting spectral parameters of silicate‐bearing meteorites. Meteoritics & Planetary Science, 40(3), 445-459.
    Publisher
    The Meteoritical Society
    Journal
    Meteoritics & Planetary Science
    URI
    http://hdl.handle.net/10150/655978
    DOI
    10.1111/j.1945-5100.2005.tb00393.x
    Additional Links
    https://meteoritical.org/
    Abstract
    Visible and near-infrared reflectance spectra of a sample of silicate-bearing meteorites have been used to evaluate the spectral parameters space defined in the pioneering work of Gaffey et al. (1993). The studied sample consisted of 91 ordinary chondrites, 47 basaltic achondrites, and 21 different laboratory mixtures obtained from the RELAB database. Our results indicate that the spectral parameter space, in particular the BAR versus band I center, is not suitable enough to identify the mineralogy of meteorites and asteroids. The grain size of the sample also appears as a very sensitive parameter and can play an important role in locating an object in the spectral parameter space. Finally, the application of our study to the question of a genetic link between V-type asteroids and HED meteorites shows that these bodies plot in distinct regions in the BAR versus band I center space. This result further confirms that those spectral parameters cannot uniquely define the mineralogy of a sample.
    Type
    Article
    text
    Language
    en
    ISSN
    1945-5100
    ae974a485f413a2113503eed53cd6c53
    10.1111/j.1945-5100.2005.tb00393.x
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    Meteoritics & Planetary Science, Volume 40, Number 3 (2005)

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